A non-oriented electrical steel sheet having a composition including, expressed in percentage by weight: 0.0001%≤Carbon≤0.005%, 0.2%≤Manganese≤0.3%, 3.1%≤Silicon≤3.6%, 0.6%≤Aluminum≤1%, Phosphorus≤0.15%, Sulfur≤0.006%, Nitrogen≤0.09%, and can contain various optional elements. The remainder composition being iron and unavoidable impurities caused by processing, the microstructure is made of ferrite and has in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, from 30% to 35% when calculated in accordance of Bertotti method.
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/20 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du cuivre
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
H01F 1/147 - Alliages caractérisés par leur composition
2.
STEEL WIRE ROPE AND A STEEL WIRE ROPE MONITORING SYSTEM THEREOF
The invention relates to a steel wire rope (100) comprising: − a core steel wire (110), − a plurality of steel wires 140 wound around the core steel wire (110) in a plurality of layers, − a sensor (150) wherein the sensor comprises a tube which contains at least one optical fiber (160), satheid sensor being configured to provide measurements of at least one physical parameter of the steel wire rope. The invention also relates to a steel wire rope monitoring system and to a method of monitoring the steel wire rope.
D07B 1/06 - Cordes ou câbles de fils métalliques, p. ex. de fil métallique profilé autour d'un noyau de chanvre
D07B 1/14 - Cordes ou câbles avec éléments auxiliaires incorporés, p. ex. pour marquage, s'étendant sur toute la longueur de la corde ou du câble
G01B 11/00 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques
G01L 5/105 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques pour la mesure de la tension dans les éléments flexibles, p. ex. dans les cordages, les câbles, les fils métalliques, les filaments, les courroies ou les bandes en utilisant des moyens électriques en utilisant des moyens électro-optiques
The invention relates to an ironmaking method wherein two gases (13,14) are injected into a blast furnace at a single level, said injection being done at the tuyere level of the blast furnace and comprises the injection of an O2-rich gas (13) comprising more than 95% in volume of O2 and of an H2-rich gas (14) comprising more than 95% of H2, without any injection of other reductant at the tuyere level.
The electrolysis device (1) for reducing iron oxides into metallic iron comprises at least one anode (6) and at least one cathode (8) immersed into an electrolytic bath (4), the cathode (8) comprising a collecting surface (18) on which metallic iron is deposited after reduction of iron oxides. At least a removable part (16) of the cathode (8), comprising at least the collecting surface (18), is made in a melting material adapted to be melted with the deposited metallic iron on the collecting surface (18) to produce a steel material, said removable part (16) being removable from the electrolysis device together with the deposited metallic iron.
C25C 1/06 - Production, récupération ou affinage électrolytique des métaux par électrolyse de solutions des métaux du groupe du fer, de métaux réfractaires ou du manganèse
The invention relates to a method for injecting hot gas into a direct reduction shaft, wherein said method comprises the following steps: - introducing gas into at least one device for heating gas, said device for heating gas comprising: o a pipe allowing gas to flow inside of it, o an insert located inside said pipe, said insert being electrically conductive, o an inductor located in the vicinity of said pipe, - feeding energy into said insert using said inductor of said device for heating gas so that said energy fed into the insert is transferred to the gas introduced into said device for heating gas, to heat said gas to a temperature from 800°C to 1100°C, - releasing said hot gas into the direct reduction shaft.
F27D 3/16 - Introduction d'un jet de fluide ou d'un courant dans la charge
F27D 11/06 - Chauffage par induction, c.-à-d. dans lequel le matériau à chauffer ou son contenant, ou bien les éléments incorporés dans celui-ci, constitue le secondaire d'un transformateur
6.
METHOD FOR HEATING GAS AND STEELMAKING VESSEL THEREOF
The invention relates to a steelmaking manufacturing device for heating gas wherein said device comprises: - a pipe allowing gas to flow inside of it, - an insert located inside said pipe, said insert being electrically conductive, - an inductor located in the vicinity of said pipe and able to feed energy into said insert, so that said energy fed into said insert is transferred to the gas flowing into said pipe, so that said gas is heated to a temperature from 300°C to 2300°C.
H05B 6/10 - Appareils de chauffage par induction, autres que des fours, pour des applications spécifiques
F16L 53/34 - Chauffage des tuyaux ou des systèmes de tuyaux en utilisant des champs électriques, magnétiques ou électromagnétiques, p. ex. chauffage par induction, diélectrique ou par micro-ondes
F27D 11/06 - Chauffage par induction, c.-à-d. dans lequel le matériau à chauffer ou son contenant, ou bien les éléments incorporés dans celui-ci, constitue le secondaire d'un transformateur
7.
METHOD FOR INJECTING HOT GAS INTO A BLAST FURNACE AND INSTALLATION THEREOF
The invention relates to a method for injecting hot gas into a blast furnace, wherein said method comprises the following steps: - introducing gas into at least one device for heating gas, said device for heating gas comprising: o a pipe allowing gas to flow inside of it, o an insert located inside said pipe, said insert being electrically conductive, o an inductor located in the vicinity of said pipe, - feeding energy into said insert using said inductor of said device for heating gas so that said energy fed into the insert is transferred to the gas introduced into said device for heating gas, to heat said gas to a temperature from 700°C to 2300°C, - releasing said hot gas into the blast furnace using means for releasing gas, said means for releasing gas being connected to said at least one device for heating gas.
The invention relates to a steelmaking manufacturing device for heating gas wherein said device comprises: - a pipe allowing gas to flow inside of it, - an insert located inside said pipe, said insert being electrically conductive, - an inductor located in the vicinity of said pipe and able to feed energy into said insert, so that said energy fed into said insert is transferred to the gas flowing into said pipe, so that said gas is heated to a temperature from 300°C to 2300°C.
H05B 6/10 - Appareils de chauffage par induction, autres que des fours, pour des applications spécifiques
F16L 53/34 - Chauffage des tuyaux ou des systèmes de tuyaux en utilisant des champs électriques, magnétiques ou électromagnétiques, p. ex. chauffage par induction, diélectrique ou par micro-ondes
F27D 11/06 - Chauffage par induction, c.-à-d. dans lequel le matériau à chauffer ou son contenant, ou bien les éléments incorporés dans celui-ci, constitue le secondaire d'un transformateur
9.
METHOD FOR INJECTING HOT GAS INTO A BLAST FURNACE AND INSTALLATION THEREOF
The invention relates to a method for injecting hot gas into a blast furnace, wherein said method comprises the following steps: - introducing gas into at least one device for heating gas, said device for heating gas comprising: o a pipe allowing gas to flow inside of it, o an insert located inside said pipe, said insert being electrically conductive, o an inductor located in the vicinity of said pipe, - feeding energy into said insert using said inductor of said device for heating gas so that said energy fed into the insert is transferred to the gas introduced into said device for heating gas, to heat said gas to a temperature from 700°C to 2300°C, - releasing said hot gas into the blast furnace using means for releasing gas, said means for releasing gas being connected to said at least one device for heating gas.
The invention relates to an ironmaking method wherein two gases (13,14) are injected into a blast furnace at a single level, said injection being done at the tuyere level of the blast furnace and comprises the injection of an O2-rich gas (13) comprising more than 95% in volume of O2 and of an H2-rich gas (14) comprising more than 95% of H2, without any injection of other reductant at the tuyere level.
The electrolysis device (1) for reducing iron oxides into metallic iron comprises at least one anode (6) and at least one cathode (8) immersed into an electrolytic bath (4), the cathode (8) comprising a collecting surface (18) on which metallic iron is deposited after reduction of iron oxides. At least a removable part (16) of the cathode (8), comprising at least the collecting surface (18), is made in a melting material adapted to be melted with the deposited metallic iron on the collecting surface (18) to produce a steel material, said removable part (16) being removable from the electrolysis device together with the deposited metallic iron.
C25C 1/06 - Production, récupération ou affinage électrolytique des métaux par électrolyse de solutions des métaux du groupe du fer, de métaux réfractaires ou du manganèse
The invention relates to a method for injecting hot gas into a direct reduction shaft, wherein said method comprises the following steps: - introducing gas into at least one device for heating gas, said device for heating gas comprising: o a pipe allowing gas to flow inside of it, o an insert located inside said pipe, said insert being electrically conductive, o an inductor located in the vicinity of said pipe, - feeding energy into said insert using said inductor of said device for heating gas so that said energy fed into the insert is transferred to the gas introduced into said device for heating gas, to heat said gas to a temperature from 800°C to 1100°C, - releasing said hot gas into the direct reduction shaft.
F27D 3/16 - Introduction d'un jet de fluide ou d'un courant dans la charge
F27D 11/06 - Chauffage par induction, c.-à-d. dans lequel le matériau à chauffer ou son contenant, ou bien les éléments incorporés dans celui-ci, constitue le secondaire d'un transformateur
13.
Automotive vehicle with press hardened visible steel parts
An automobile, wherein at least one outer skin part or at least one semi-visible part is made of coated press hardened steel, the coating of the steel before heating and press hardening containing by weight, 8 to 12% of Silicon, up to 3% Iron, and unavoidable impurities up to 0.1%, the balance being Aluminum, and wherein the coating has a thickness from 20 to 40 μm per side.
A method for manufacturing pig iron in a smelting furnace including a vessel, the method including-the following successive steps: loading DRI product in the vessel, melting the DRI product to form a pig iron layer topped by a slag layer, and injecting a carbon containing material directly in the pig iron layer. It also deals with the manufacturing of steel from the pig iron and an associated electrical smelting furnace.
A non-oriented electrical steel sheet having a composition including of the following elements, expressed in percentage by weight: 0.0001%≤Carbon≤0.007%, 0.15%≤Manganese≤0.2%, 3%≤Silicon≤3.6%, 0.7%≤Aluminum≤1.3%, Phosphorus≤0.15%, Sulfur≤0.006%, Nitrogen≤0.09%, with 3.85%≤Si+Al+Mn≤5.5%, various optional elements. The remainder composition is iron and unavoidable impurities caused by processing. The microstructure is made of ferrite and has in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, of 35 to 55% when calculated in accordance with Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.635T to 1.670T.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
16.
Steel part having high strength and high bendability
Steel part having a chemical composition comprising, by weight %, 0.18≤C≤0.27, 0.18≤Si≤0.30, 1.0≤Mn≤1.5, 0.14≤Cr≤0.25, 0.02≤Al≤0.06, 0.02≤Ti≤0.06, 0.0020≤B≤0.0040, 0≤S≤0.008, 0≤N≤0.020, the remainder of the composition being iron and unavoidable impurities resulting from the elaboration process, having a microstructure including, in surface fraction, 95% or more of martensite and a prior austenite grain skin refinement ratio equal to or above 1.2, the ratio being defined as PAGS_B/PAGS_S, wherein PAGS_B is the average prior austenite grain diameter in the bulk (3) expressed in μm and PAGS_S is the average prior austenite grain diameter in the skin (2), also expressed in μm.
C21D 9/48 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles tôles embouties
B21D 22/02 - Estampage utilisant des dispositifs ou outils rigides
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/04 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes pour produire des produits plats ou des bandes pour l'emboutissage profond
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/46 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du vanadium
C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
C22C 38/54 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du bore
C22C 38/60 - Alliages ferreux, p. ex. aciers alliés contenant du plomb, du sélénium, du tellure, de l'antimoine, ou plus de 0,04% en poids de soufre
17.
ANNEALED AND TEMPERED STEEL SHEET, AND METHOD FOR MANUFACTURING THE SAME
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
C21D 1/19 - DurcissementTrempe avec ou sans revenu ultérieur par trempe interrompue
Steel part having a chemical composition including, by weight %, 0.18≤C≤0.27, 0.18≤Si≤0.30, 1.0≤Mn≤1.5, 0.14≤Cr≤0.25, 0.02≤Al≤0.06, 0.02≤Ti≤0.06, 0.0020≤B≤0.0040, 0≤S≤0.008, 0.008≤N≤0.020, the remainder of the composition being iron and unavoidable impurities resulting from the elaboration process, having a microstructure including, in surface fraction, 95% or more of martensite, wherein the surface fraction of TIN particles in the skin portion is equal to or greater than 200*10−6 inclusions/mm2 and the average equivalent diameter of the TiN particles in the skin portion is equal to or smaller than 2.0 microns.
C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
19.
UNLOADING SYSTEM FOR RETRIEVING METAL SCRAP MATERIAL TRANSPORTED BY A VEHICLE
The unloading system (1) comprises: - a container (2) storing the metal scrap material, arranged in a removable manner on the vehicle (6), - a prehension device (4) comprising a prehension element (22) arranged to cooperate with the container (2) to remove said container (2) from the vehicle (6) and to move said container (2) to an unloading area (20). The prehension device comprises an actuator (24) moving the container (2) in rotation relative to the prehension element (22) to tilt the container (2) and deliver the metal scrap material stored in said container (2) on the unloading area (20).
B66C 1/66 - Éléments ou dispositifs de prise de la charge adjoints aux mécanismes de levage, de descente ou de halage, ou adaptés pour être utilisés avec ces mécanismes et transmettant les efforts à des articles ou à des groupes d'articles par moyens mécaniques comportant des organes de saisie ayant une forme complémentaire de celle des objets à manipuler s'engageant dans des trous, des évidements ou des renflements spécialement aménagés sur les objets pour en permettre la prise
B66C 13/08 - Dispositifs auxiliaires pour commander les mouvements des charges suspendues ou pour empêcher le câble de prendre du mou pour déposer les charges selon un orientement ou dans une position donnés
B66F 9/19 - Moyens additionnels pour faciliter le déchargement
20.
ANNEALED AND TEMPERED STEEL SHEET, AND METHOD FOR MANUFACTURING THE SAME
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
C21D 1/19 - DurcissementTrempe avec ou sans revenu ultérieur par trempe interrompue
The unloading system (1) comprises: - a container (2) storing the metal scrap material, arranged in a removable manner on the vehicle (6), - a prehension device (4) comprising a prehension element (22) arranged to cooperate with the container (2) to remove said container (2) from the vehicle (6) and to move said container (2) to an unloading area (20). The prehension device comprises an actuator (24) moving the container (2) in rotation relative to the prehension element (22) to tilt the container (2) and deliver the metal scrap material stored in said container (2) on the unloading area (20).
B66C 1/66 - Éléments ou dispositifs de prise de la charge adjoints aux mécanismes de levage, de descente ou de halage, ou adaptés pour être utilisés avec ces mécanismes et transmettant les efforts à des articles ou à des groupes d'articles par moyens mécaniques comportant des organes de saisie ayant une forme complémentaire de celle des objets à manipuler s'engageant dans des trous, des évidements ou des renflements spécialement aménagés sur les objets pour en permettre la prise
B66C 13/08 - Dispositifs auxiliaires pour commander les mouvements des charges suspendues ou pour empêcher le câble de prendre du mou pour déposer les charges selon un orientement ou dans une position donnés
B66F 9/19 - Moyens additionnels pour faciliter le déchargement
22.
DEVICE AND METHOD FOR COOLING ROLLS USED FOR ROLLING IN A HIGHLY TURBULENT ENVIRONMENT
A rolling stand for metallic products including at least one pair of work rolls, at least a pair of back-up rolls, at least one water pillow cooling device able to project a plurality of cooling jets under pressure on at least one of said work roll, a removable plate. The removable plate is placed between said cooling device and said work roll. The removable plate is concave and curved with a curvature such that a gap between said removable plate and said upper work roll is constant or increases when moving in direction of the back-up roll and such that said gap is from 5 to 200 mm. The removable plate is also holed such that the cooling jets can pass through said removable plate.
B21B 45/02 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour lubrifier, refroidir ou nettoyer
Rear structure for an electric vehicle having a rear rail which includes a rear portion, a front portion and a transition zone, such that in the event of a rear crash the rear portion and the transition zone are both able to deform to maximize the amount of energy absorption.
B62D 21/15 - Châssis, c.-à-d. armature sur laquelle une carrosserie peut être montée comportant des moyens amortisseurs de chocs, p. ex. châssis conçus pour changer de forme ou de dimensions d'une façon définitive ou temporaire à la suite d'une collision avec un autre corps
B62D 29/00 - Carrosseries caractérisées par le matériau utilisé
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
C22C 38/26 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du niobium ou du tantale
C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
C22C 38/32 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du bore
C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
24.
METHOD OF FORMING LOW-CARBON, HIGH TOUGHNESS, STEEL PLATES FOR RAILROAD TANK CARS
A method of manufacturing a normalized steel alloy plate for a railroad tank car is provided. The steel alloy plate includes a steel alloy including in wt. %: C: 0.1-0.15; Mn: 1.0-1.65; Si: 0.15-0.40; Al: 0.015-0.06; Mo: 0.1-0.3; Ni: 0.1-0.25; Nb: 0.015-0.045; Ti: up to 0.02; Cr: up to 0.22; V: up to 0.08; Cu: up to 0.35; P: max 0.025; S: max 0.015; and N: 0.004-0.01. The alloy plate is normalized for at least 30 minutes at 900° C. The normalized alloy plate may have a tensile strength of at least 560 MPa; a yield strength of at least 345 MPa; a total elongation of at least 22%; a CVN impact toughness of at least 135.5 J at −34.4° C.; a CVN impact toughness of at least 122 J at −45.5° C. The normalized alloy plate may have a ferrite-bainite microstructure, with 10% or less pearlite. The alloy normalized alloy plate may have an absence of any banded ferrite-pearlite/martensite structure.
C22C 38/46 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du vanadium
B61D 5/00 - Wagons-citernes pour le transport de matériaux fluents
B61D 17/04 - Parties constitutives structurales du corps des véhicules avec caisses métalliquesParties constitutives structurales du corps des véhicules avec caisses à structure composite, p. ex. en métal et bois
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
25.
HOT ROLLED AND STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF
A hot rolled steel sheet having a composition comprising of the following elements, 0.04% ≤ Carbon ≤ 0.1 %,1 % ≤ Manganese ≤ 1.50%,0.5% ≤ Silicon ≤ 1.3%,0 02% ≤ Aluminum ≤ 0.08 %, 0.1% ≤ Chromium ≤ 0.6%,0.02% ≤ Niobium ≤ 0.08%, 0.02% ≤ Phosphorus ≤ 0.1 %, 0 % ≤ Sulfur ≤ 0.005 %,0 % ≤ Nitrogen ≤ 0.012%, 0% ≤ Molybdenum ≤ 0.3%, 0% ≤ Vanadium ≤ 0.2, 0.0001% ≤ Calcium ≤ 0.005%, 0 % ≤ Nickel ≤ 0. 2%,0 % ≤ Magnesium ≤ 0.0010%, 0 % ≤ Copper ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet comprising in area fraction, 68% to 90% Ferrite, 5% to 25% Bainite, 2% to 10% Pearlite, Martensite and/or Austenite islands from 0% to 2% wherein the said hot rolled steel sheet has an inclusion density from 10 inclusions per square micro-meter to 100 inclusions per square micro-meters and a the amount of niobium present as carbides, nitrides and/or carbo-nitrides is equal to or more than 35% of the nominal niobium content present in the steel in percentage by weight.
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/26 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du niobium ou du tantale
C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 6/00 - Traitement thermique des alliages ferreux
A double cold rolled non-oriented electrical steel sheet having a composition including, expressed in percentage by weight: 0.0001%≤Carbon≤0.007%, 0.15%≤Manganese≤0.3%, 3.2%≤Silicon≤3.8%, 0.8%≤Aluminum≤1.1%, Phosphorus≤0.15%, Sulfur≤0.006%, Nitrogen≤0.09%, and can contain various optional elements. The remainder composition being iron and unavoidable impurities caused by processing, the microstructure is made of ferrite and has in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, less than 30% when calculated in accordance of Bertotti method and simultaneously having a magnetic polarization at 5000 A/m (J50) from 1.66 T to 1.69 T.
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/16 - Alliages ferreux, p. ex. aciers alliés contenant du cuivre
H01F 1/147 - Alliages caractérisés par leur composition
27.
Steel sheet and high strength press hardened steel part having excellent bending anisotropy and method of manufacturing the same
A steel sheet has a chemical composition including in wt % C: 0.2-0.4%, Mn: 0.8-2.0%, Si: 0.1-0.5%, Al: 0.01-0.1%, Ti: 0.01-0.1%, B: 0.0005-0.005%, P≤0.040%, Ca≤0.01%, S≤0.006%, N≤0.01%. The steel sheet includes from the bulk to the surface of the coated steel sheet a bulk and a skin layer occupying the outermost 10% of the thickness on either side of the bulk. The bulk includes an inclusion population in which the sum of clustering indexes of MnS and TiN/Ti(C,N) inclusions is less than or equal to 300 μm/mm2. This allows to manufacture hot pressed parts having a tensile strength equal to or greater than 1300 MPa and a bending anisotropy equal to or lower than 7°.
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
28.
NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A non-oriented electrical steel sheet having a composition of the following elements, expressed in percentage by weight: 0.0001%≤Carbon≤0.007%, 0.09%≤Manganese≤0.15%, 2.5%≤Silicon≤3%, 0.1% ≤ Aluminum≤0.5%, Phosphorus≤0.15%, Sulfur≤0.006%, Nitrogen≤0.09%, and can contain various optional elements, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the steel sheet being made of ferrite and including in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, from 35% to 45% when calculated in accordance of Bertotti method.
C22C 38/54 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du bore
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/46 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du vanadium
C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
C22C 38/52 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cobalt
C22C 38/60 - Alliages ferreux, p. ex. aciers alliés contenant du plomb, du sélénium, du tellure, de l'antimoine, ou plus de 0,04% en poids de soufre
29.
Steel sheet and high strength press hardened steel part and method of manufacturing the same
A steel sheet made of a steel having a composition including, C: 0.3-0.4%, Mn: 0.5-1.0%, Si: 0.4-0.8%, Cr: 0.1-1.0%, Mo: 0.1-0.5%, Nb: 0.01-0.1%, Al: 0.01-0.1%, Ti: 0.008-0.03%, B: 0.0005-0.003%, P≤ 0.020%, Ca≤0.001%, S≤0.004%, N≤0.005% and including optionally Ni<0.5%, having a microstructure including, in surface fraction, from 60% to 95% of ferrite, the rest being martensite-austenite islands, pearlite or bainite, and including a bulk and a skin layer occupying the outermost 10% of the thickness on either sides of the bulk, the skin layer having a skin layer inclusion population wherein the surface fraction of oxides is equal to or below 60*10−6.
A non-oriented electrical steel sheet having a composition including of the following elements, expressed in percentage by weight: 0.0001%≤Carbon≤0.007%, 0.15%≤Manganese≤0.25%, 3.2%≤Silicon≤3.8%, 0.7%≤Aluminum≤1.3%, Phosphorus≤0.15%, Sulfur≤0.006%, Nitrogen≤0.09%, and various optional elements. The remainder composition is iron and unavoidable impurities caused by processing. The microstructure is ferrite and has in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, less than 33% when calculated in accordance with Bertotti method and simultaneously having a magnetic polarization at 5000 A/m (J50) from 1.630T to 1.65T.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
31.
DOUBLE COLD ROLLED NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A double cold rolled non-oriented electrical steel sheet having a composition including: 0.0001%≤Carbon≤0.007%, 0.1%≤Manganese≤0.2%, 3.1%≤Silicon≤3.6%, 0.8%≤Aluminum≤1.1%, Phosphorus≤0.15%, Sulfur≤0.006%, Nitrogen≤0.09%, and can contain various optional elements. The remainder composition being iron and unavoidable impurities caused by processing, the microstructure is made of ferrite and has in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, is from 35% to 45% when calculated in accordance of Bertotti method and simultaneously having a magnetic polarization at 5000 A/m (J50) from 1.64 T to 1.66 T.
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/20 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du cuivre
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
32.
METHOD FOR FABRICATING STEEL SHEET FOR PRESS HARDENING, AND PARTS OBTAINED BY THIS METHOD
The present invention provides fabrication methods for cold rolled, precoated and press hardened steel sheets, for which the chemical composition includes, with contents expressed by weight, 0.24%≤C≤0.38%, 0.40%≤Mn≤3%, 0.10%≤Si≤0.70%, 0.015%≤Al≤0.070%, 0%≤Cr≤2%, 0.25%≤Ni≤2%, 0.015%≤Ti≤0.10%, 0%≤Nb≤0.060%, 0.0005%≤B≤0.0040%, 0.003%≤N≤0.010%, 0.0001%≤S≤0.005%, 0.0001%≤P≤0.025%, it being understood that the titanium and nitrogen content satisfy: Ti/N>3.42, and that the carbon, manganese, chromium and silicon content satisfy:
The present invention provides fabrication methods for cold rolled, precoated and press hardened steel sheets, for which the chemical composition includes, with contents expressed by weight, 0.24%≤C≤0.38%, 0.40%≤Mn≤3%, 0.10%≤Si≤0.70%, 0.015%≤Al≤0.070%, 0%≤Cr≤2%, 0.25%≤Ni≤2%, 0.015%≤Ti≤0.10%, 0%≤Nb≤0.060%, 0.0005%≤B≤0.0040%, 0.003%≤N≤0.010%, 0.0001%≤S≤0.005%, 0.0001%≤P≤0.025%, it being understood that the titanium and nitrogen content satisfy: Ti/N>3.42, and that the carbon, manganese, chromium and silicon content satisfy:
2.6
C
+
Mn
5.3
+
Cr
13
+
Si
15
≥
1.1
%
,
The present invention provides fabrication methods for cold rolled, precoated and press hardened steel sheets, for which the chemical composition includes, with contents expressed by weight, 0.24%≤C≤0.38%, 0.40%≤Mn≤3%, 0.10%≤Si≤0.70%, 0.015%≤Al≤0.070%, 0%≤Cr≤2%, 0.25%≤Ni≤2%, 0.015%≤Ti≤0.10%, 0%≤Nb≤0.060%, 0.0005%≤B≤0.0040%, 0.003%≤N≤0.010%, 0.0001%≤S≤0.005%, 0.0001%≤P≤0.025%, it being understood that the titanium and nitrogen content satisfy: Ti/N>3.42, and that the carbon, manganese, chromium and silicon content satisfy:
2.6
C
+
Mn
5.3
+
Cr
13
+
Si
15
≥
1.1
%
,
with the chemical composition optionally including one or more of the following elements: 0.05%≤Mo≤0.65%, 0.001%≤W≤0.30%, 0.0005%≤Ca≤0.005%, with the remainder made up of iron and inevitable impurities coming from preparation.
C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
C21D 1/673 - Dispositifs pour trempe pour la trempe en coquille
C21D 8/00 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/08 - Alliages ferreux, p. ex. aciers alliés contenant du nickel
C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C22C 38/40 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
C22C 38/54 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du bore
C22C 38/58 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et plus de 1,5% en poids de manganèse
C23F 17/00 - Procédés à étapes multiples pour le traitement de surface de matériaux métalliques utilisant au moins un procédé couvert par la classe et au moins un procédé couvert soit par la sous-classe , soit par la sous-classe , soit par la classe
33.
NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
The invention deals with a non-oriented electrical steel sheet having a composition of the following elements, expressed in percentage by weight: 0.0001%≤Carbon≤0.007%, 0.05%≤Manganese≤0.15%, 2.5%≤Silicon≤3.1%, 0.26%≤ Aluminum≤0.7%, Phosphorus≤0.15%, Sulfur≤0.006%, Nitrogen≤0.09%, and can contain various optional elements. The remainder composition is composed of iron and unavoidable impurities caused by processing. The microstructure of the steel sheet is made of ferrite and has in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, from 35% to 45% when calculated in accordance of Bertotti method.
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
H01F 1/147 - Alliages caractérisés par leur composition
34.
NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A non-oriented electrical steel sheet having a composition including of the following elements, expressed in percentage by weight: 0.0001%≤Carbon≤0.007%, 0.21%≤Manganese≤0.7%, 3%≤Silicon≤3.6%, 0.7%≤Aluminum≤1.3%, Phosphorus≤0.15%, Sulfur≤0.006%, Nitrogen≤0.09%, with 3.85%≤Si+Al+Mn≤5.5%, and can contain various optional elements. The remainder composition being composed of iron and unavoidable impurities. The microstructure is ferrite and has in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, from 35% to 45% and simultaneously having a magnetic polarization at 5000 A/m (J50) from 1.63T to 1.66T.
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
35.
Process for Manufacturing a Press Hardened Laser Welded Steel Part
A process for manufacturing a press hardened laser welded steel part, includes providing at least one first steel sheet with a composition containing, by weight 0.062≤C≤0.095%, the at least one first steel sheet precoated with a metallic precoating of aluminum, or aluminum-based alloy, or aluminum alloy; providing at least one second steel sheet with a composition containing, by weight, from 0.065 to 0.38% of carbon, the at least one second steel sheet precoated with a metallic precoating of aluminum, or aluminum-based alloy, or aluminum alloy; removing a portion of a thickness of the aluminum precoating at upper and lower sides along one side of a periphery of the at least one first steel sheet and the at least one second steel sheet; creating a welded blank by laser welding the at least one first steel sheet and the at least one second steel sheet, such that an aluminum content in a weld metal is lower than 0.3% by weight, the laser welding being performed along the periphery wherein the portion of the thickness of the aluminum precoating has been removed; heating the welded blank and holding the welded blank at a temperature Tm between 890 and 950° C., a holding duration Dm at the temperature being between 1 and 10 minutes, so as to obtain a heated welded blank; transferring the heated welded blank within a forming press, the transfer duration Dt being less than 10 s; hot forming the heated welded blank in the forming press so as to obtain a welded formed part; and cooling the welded formed part at a first cooling rate CR1 between 40 and 360° C./s in a temperature range between 750 and 450° C., and at a second cooling rate CR2 between 15 to 150° C./s in a temperature range between 450° C. and 250° C., wherein CR2
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
B21B 1/22 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer des bandes ou des feuilles en longueurs indéfinies
B21D 22/02 - Estampage utilisant des dispositifs ou outils rigides
B23K 26/02 - Mise en place ou surveillance de la pièce à travailler, p. ex. par rapport au point d'impactAlignement, pointage ou focalisation du faisceau laser
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
C21D 1/673 - Dispositifs pour trempe pour la trempe en coquille
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C22C 21/02 - Alliages à base d'aluminium avec le silicium comme second constituant majeur
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
C22C 38/26 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du niobium ou du tantale
C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
C22C 38/32 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du bore
C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/46 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du vanadium
C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
C22C 38/54 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du bore
A double cold rolled non-oriented electrical steel sheet having a composition including of the following elements, expressed in percentage by weight: 0.0001%≤Carbon≤0.007%, 0.1%≤Manganese≤0.3%, 3.1%≤Silicon≤3.8%, 0.6%≤Aluminum≤0.8%, Phosphorus≤0.15%, Sulfur≤0.006%, Nitrogen≤0.09%, and can contain various optional elements. The remainder composition is iron and unavoidable impurities caused by processing. The microstructure ferrite and has in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, of 40 to 50% when calculated in accordance with Bertotti method and simultaneously having a magnetic polarization at 5000 A/m (J50) from 1.66T to 1.7T.
C22C 38/54 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du bore
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/46 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du vanadium
C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
C22C 38/52 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cobalt
C22C 38/60 - Alliages ferreux, p. ex. aciers alliés contenant du plomb, du sélénium, du tellure, de l'antimoine, ou plus de 0,04% en poids de soufre
37.
TREATMENT METHOD FOR A CUTTING PIECE, AND ASSOCIATED EQUIPMENT
Equipment for treating a cutting piece is provides which includes an ultrasonic shot peening apparatus arranged for throwing shots on a cutting surface of the cutting piece so the cutting surface defines a cutting surface with shot impacts; and a grinding device arranged for grinding the cutting surface with shot impacts over a chosen thickness so that the cutting surface with the shot impacts defines a treated cutting surface.
B24C 1/02 - Méthodes d'utilisation de jet abrasif en vue d'effectuer un travail déterminéUtilisation d'équipements auxiliaires liés à ces méthodes pour affûter ou décaper les outils coupants, p. ex. les limes
B23P 15/40 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe d'outils de coupe d'outils de cisaillage
B24B 1/04 - Procédés de meulage ou de polissageUtilisation d'équipements auxiliaires en relation avec ces procédés en soumettant les outils de meulage ou de polissage, les produits de meulage ou de polissage ou les pièces à des vibrations, p. ex. meulage en fréquence ultrasonore
B24C 1/10 - Méthodes d'utilisation de jet abrasif en vue d'effectuer un travail déterminéUtilisation d'équipements auxiliaires liés à ces méthodes pour augmenter la compacité des surfaces, p. ex. par grenaillage
B24C 5/00 - Dispositifs ou accessoires pour la production des jets abrasifs
B24C 11/00 - Emploi de matériaux abrasifs spécifiés pour les jets abrasifs
38.
LOWER SHIELD OF BATTERY PACK AND METHOD TO PRODUCE THE SAME
A process to manufacture an automotive lower shield comprising a metal part assembly has the following steps: a. Providing a metal sheet, b. Applying on at least one side a pre-treatment solution, thereby providing a pretreatment layer c. Drying said pretreatment layer, d. Cutting the pretreated metal sheet into a blank, e. Forming said blank into a pretreated metal part, f. Joining the pretreated metal part to at least one other metal part by welding to obtain the metal part assembly, g. Applying a treatment composition on at least a portion of the pretreated metal part of the assembly, h. Drying said protection layer. Described is the process and the automotive lower shield obtained by the process.
C09D 5/00 - Compositions de revêtement, p. ex. peintures, vernis ou vernis-laques, caractérisées par leur nature physique ou par les effets produitsApprêts en pâte
39.
NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A non-oriented electrical steel sheet having a composition including of the following elements, expressed in percentage by weight: 0.0001%≤Carbon≤0.007%,, 0.15% ≤Manganese≤0.2%, 3%≤Silicon≤3.6%, 0.7%≤Aluminum≤1.3%, Phosphorus≤0.15%, Sulfur≤0.006%, Nitrogen≤0.09%, with 3.85%≤Si+Al+Mn ≤5.5%, and can contain various optional elements, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the steel sheet being made of ferrite and including in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, of 35 to 55% when calculated in accordance with Bertotti method and simultaneously having a magnetic polarization at 5000 A/m (J50) from 1.635T to 1.670T.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
40.
METHOD FOR DETERMINING A DECARBURIZATION INDICATOR FOR A STEEL PRODUCT, ASSOCIATED CONTROL AND MONITORING METHODS AND SYSTEMS
decdecdec time step by time step, according to ∆D2decdec= ∆X2decdec − ∆X2ococ with ∆X2decocdecdec is distance between an initial position of the steel surface (23) prior to oxidation, and an end (24) of a zone that is decarburized in the steel product, D is a diffusion coefficient for carbon in steel, at temperature T, k is a correction coefficient, and ∆t is a time step duration.
A non-oriented electrical steel sheet having a composition including the following elements, expressed in percentage by weight: 0.0001%≤Carbon≤0.007%, 0.15%≤Manganese≤0.7%, 3%≤Silicon≤3.6%, 0.7%≤Aluminum≤1.3%, Phosphorus≤0.15%, Sulfur≤0.006%, Nitrogen≤0.09%, with 3.85%≤Si+Al+Mn≤5.5%, and can contain various optional elements, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the steel sheet being made of ferrite and including in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, from 30 to 40% when calculated in accordance with Bertotti method.
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
H01F 1/147 - Alliages caractérisés par leur composition
44.
Steel sheet for manufacturing press hardened parts, press hardened part having a combination of high strength and crash ductility, and manufacturing methods thereof
A steel sheet for the manufacture of a press hardened part is provided, having a composition of: 0.15%≤C≤0.22%, 3.5%≤Mn<4.2%, 0.001%≤Si≤1.5%, 0.020%≤Al≤0.9%, 0.001%≤Cr≤1%, 0.001%≤Mo≤0.3%, 0.001%≤Ti≤0.040%, 0.0003%≤B≤0.004%, 0.001%≤Nb≤0.060%, 0.001%≤N≤0.009%, 0.0005%≤S≤0.003%, 0.001%≤P≤0.020%. A microstructure has less than 50% ferrite, 1% to 20% retained austenite, cementite, such that the surface density of cementite particles larger than 60 nm is lower than 10{circumflex over ( )}7/mm2, and a complement of bainite and/or martensite, the retained austenite having an average Mn content of at least 1.1*Mn %. Press-hardened steel part obtained by hot forming the steel sheet, and manufacturing methods thereof.
C21D 9/50 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour joints de soudure
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/04 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes pour produire des produits plats ou des bandes pour l'emboutissage profond
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
C22C 38/26 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du niobium ou du tantale
C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
C22C 38/32 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du bore
C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
C23C 2/02 - Pré-traitement du matériau à revêtir, p. ex. pour le revêtement de parties déterminées de la surface
45.
NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A non-oriented electrical steel sheet having a composition including of the following elements, expressed in percentage by weight: 0.0001%≤Carbon≤0.007%, 0.18%≤Manganese≤0.5%, 3.1%≤Silicon≤3.8%, 0.7%≤Aluminum≤1.3%, Phosphorus≤0.15%, Sulfur≤0.006%, Nitrogen≤0.09%, with 3.85%≤Si+Al+Mn≤5.5%, and can contain various optional elements the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the steel sheet being made of ferrite and including in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, less than 34% when calculated in accordance with Bertotti method and simultaneously having a magnetic polarization at 5000 A/m (J50) from 1.60 T to 1.65 T.
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
H01F 1/153 - Alliages métalliques amorphes, p. ex. métaux vitreux
46.
NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A non-oriented electrical steel sheet having a composition including of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon≤0.007%, 0.17%≤Manganese≤0.4%, 3%≤Silicon≤3.6%, 0.7%≤Aluminum≤1.3%, Phosphorus≤0.15%, Sulfur≤0.006%, Nitrogen≤0.09%, with 3.85%≤Si+Al+Mn≤5.5% and can contain various optional elements the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the steel sheet being made of ferrite and including in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, less than 25% when calculated in accordance of Bertotti method.
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/20 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du cuivre
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
H01F 1/147 - Alliages caractérisés par leur composition
47.
A METHOD TO PRODUCE DIRECT REDUCED IRON BRIQUETTES
The invention is related to a method to produce an agglomerated direct reduced iron product (14) comprising the reduction of iron ore (10) in a direct reduction furnace (1) using a reducing gas (11) to produce a hot direct reduced iron (12) having a temperature from 500°C to 1000°C, agglomeration of the hot direct reduced iron (12) together with added solid carbon (13) to form an agglomerated direct reduced iron product (14).
The invention relates to a steelmaking method comprising the following successive steps: a. feeding an electrical furnace with an initial load consisting of 0 to 50 wt.% of pig iron or hot metal, 0 to 50 wt.% of scraps, and at least 50 wt.% of reduced iron, the respective load content in sulfur and titanium being below 100 ppm in weight after melting down, b. tapping the melted load in a ladle and submitting it to a decarburization step without prior deoxidation, then to an alloying step and then to a desulfurization step, then to an optional final alloying step to obtain a liquid steel having a sulfur content below 30 ppm in weight, a titanium content below 100 ppm in weight and a carbon content below 50 ppm in weight, c. casting said liquid steel.
The invention relates to a steelmaking method comprising the following successive steps: − producing hot metal in a blast furnace, the content in sulfur of said hot metal being below 500 ppm in weight, − tapping said hot metal in a vessel and submitting it to a first desulfurization step by adding desulfurization agents and creating a slag layer to which part of said sulfur is transferred to reach a content of sulfur below 50 ppm in weight in the hot metal, − removing said slag and transferring the hot metal into a BOF and submitting it to a first decarburization step, − tapping the resulting liquid steel into a ladle and submitting it to a second decarburization step, − performing an alloying step, − performing a second desulfurization step, − proceeding to an optional final alloying step using ferro-alloys containing less than 300 ppm in weight of titanium, to obtain a liquid steel having a sulfur content below 30 ppm in weight, a titanium content below 100 ppm in weight and a carbon content below 50 ppm in weight, − casting said liquid steel.
Steel part having a chemical composition comprising, by weight %, 0.18 ≤ C ≤ 0.27, 0.18 ≤ Si ≤ 0.30, 1.0 ≤ Mn ≤ 1.5, 0.14 ≤ Cr ≤ 0.25, 0.02 ≤ Al ≤ 0.06, 0.02 ≤ Ti ≤ 0.06, 0.0020 ≤ B ≤ 0.0040, 0 ≤ S ≤ 0.008, 0 ≤ N ≤ 0.020, the remainder of the composition being iron and unavoidable impurities resulting from the elaboration process, having a microstructure comprising, in surface fraction, 95% or more of martensite and a prior austenite grain skin refinement ratio equal to or above 1.2, said ratio being defined as PAGS_B / PAGS_S, wherein PAGS_B is the average prior austenite grain diameter in the bulk (3) expressed in µm and PAGS_S is the average prior austenite grain diameter in the skin (2), also expressed in µm.
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
B21D 22/02 - Estampage utilisant des dispositifs ou outils rigides
C23C 30/00 - Revêtement avec des matériaux métalliques, caractérisé uniquement par la composition du matériau métallique, c.-à-d. non caractérisé par le procédé de revêtement
C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
C21D 1/673 - Dispositifs pour trempe pour la trempe en coquille
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
Steel part having a chemical composition comprising, by weight %, 0.18 ≤ C ≤ 0.27, 0.18 ≤ Si ≤ 0.30, 1.0 ≤ Mn ≤ 1.5, 0.14 ≤ Cr ≤ 0.25, 0.02 ≤ Al ≤ 0.06, 0.02 ≤ Ti ≤ 0.06, 0.0020 ≤ B ≤ 0.0040, 0 ≤ S ≤ 0.008, 0.008 ≤ N ≤ 0.020, the remainder of the composition being iron and unavoidable impurities resulting from the elaboration process, having a microstructure comprising, in surface fraction, 95% or more of martensite, wherein the surface fraction of TiN particles in the skin portion is equal to or greater than 200*10-6 inclusions / mm² and the average equivalent diameter of said TiN particles in the skin portion is equal to or smaller than 2.0 microns.
C21D 1/673 - Dispositifs pour trempe pour la trempe en coquille
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
An ironmaking method wherein hot metal and a blast furnace top gas are produced in a blast furnace, said method comprising the steps of capturing at least a part of the blast furnace top gas, separating carbon dioxide from the captured blast furnace top gas so as to produce a CO2-rich stream and a CO2-lean stream, injecting at least a part of the CO2-lean stream in the blast furnace, mixing the CO2-rich stream with a hydrogen makeup stream and subjecting the obtained CO2/H2 gas mixture to a reverse water gas shift reaction in a reactor to produce a reducing stream comprising carbon monoxide CO and hydrogen H2, separating H2 from the reducing stream to produce a CO-rich stream and an H2-rich stream, mixing the H2-rich stream with the CO2-rich stream or with the CO2/H2 gas mixture in the reactor and subjecting the obtained gas mixture to the reverse water gas shift reaction.
An ironmaking method comprising the production of hot metal (2) and of a blast furnace top gas (10), the method comprising the steps of capturing at least a part of the top gas (10), separating CO2 from the captured top gas (10) so as to produce a CO2-rich stream (12) and a CO2-lean stream (11), mixing the CO2-rich stream (12) with a H2 makeup stream (30) and subjecting the obtained CO2/H2 gas mixture to a reverse water gas shift reaction in a reactor (3) to produce a reducing stream (13) comprising CO and H2, separating H2 from the reducing stream to produce a CO- rich stream (14) and an H2-rich stream (15), mixing the H2-rich stream (15) with the CO2-rich stream (12) or with the CO2/H2 gas mixture in the reactor (3) and subjecting the obtained gas mixture to the reverse water gas shift reaction and feeding at least a portion of the CO-rich stream 14 (13) to at least one chemical or biochemical plant (4) to produce one or more chemical products (16).
A non-oriented electrical steel sheet having a composition of the following elements, expressed in percentage by weight 0.0001%≤Carbon≤0.007%, 0.15%≤Manganese≤0.25%, 2.9%≤Silicon≤3.4%, 0.8%≤Aluminum≤1.1%, Phosphorus≤0.15%, Sulfur≤0.006%, Nitrogen≤0.09%, with 3.85%≤Si+Al+Mn≤5.5%, and the following optional elements 0%≤Niobium≤0.1%, 0%≤Titanium≤0.1%, 0%≤Vanadium≤0.1%, 0%≤Chromium≤1%, 0%≤Molybdenum≤0.5%, 0%≤Tungsten≤0.1%, 0%≤Cobalt≤1%, 0%≤Arsenic≤0.05%, 0.001%≤Calcium≤0.01%, 0%≤Copper≤1%, 0%≤Nickel≤1%, 0%≤Boron≤0.05%, 0%≤Lead≤0.2%, 0%≤Tin≤0.2%, 0%≤Antimony≤0.2%, the remainder composition being composed of iron and unavoidable impurities caused by processing. The microstructure is made of ferrite and including in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses less than 25% and simultaneously having a magnetic polarization at 5000 A/m from 1.625 T to 1.690 T.
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/20 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du cuivre
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
H01F 1/147 - Alliages caractérisés par leur composition
A steelmaking method comprising the production of a steel product in a steelmaking furnace (1) and the emission of an exhaust gas (10) comprising at least 10% in volume of carbon dioxide CO2. The exhaust gas is at least partly recovered and subjected to a CO2 separation step to produce a CO2-rich stream (12) and a CO2-lean stream (11), the CO2-rich stream (12) is mixed with a hydrogen makeup stream (30) and the obtained CO2/H2 gas mixture subjected to a reverse water gas shift reaction in a reactor (3) to produce a reducing stream (13) comprising carbon monoxide CO and hydrogen H2.
An ironmaking method wherein hot metal and a blast furnace top gas are produced in a blast furnace, said method comprising the steps of capturing at least a part of the blast furnace top gas, separating carbon dioxide from the captured blast furnace top gas so as to produce a CO2-rich stream and a CO2-lean stream, injecting at least a part of the CO2- lean stream in the blast furnace, mixing the CO2-rich stream with a hydrogen makeup stream and subjecting the obtained CO2/H2 gas mixture to a reverse water gas shift reaction in a reactor to produce a reducing stream comprising carbon monoxide CO and hydrogen H2, separating H2 from the reducing stream to produce a CO-rich stream and an H2-rich stream, mixing the H2-rich stream with the CO2-rich stream or with the CO2/H2 gas mixture in the reactor and subjecting the obtained gas mixture to the reverse water gas shift reaction.
An ironmaking method comprising the production of hot metal (2) and of a blast furnace top gas (10), the method comprising the steps of capturing at least a part of the top gas (10), separating CO2 from the captured top gas (10) so as to produce a CO2-rich stream (12) and a CO2-lean stream (11), mixing the CO2-rich stream (12) with a H2 makeup stream (30) and subjecting the obtained CO2/H2 gas mixture to a reverse water gas shift reaction in a reactor (3) to produce a reducing stream (13) comprising CO and H2, separating H2 from the reducing stream to produce a CO- rich stream (14) and an H2-rich stream (15), mixing the H2-rich stream (15) with the CO2-rich stream (12) or with the CO2/H2 gas mixture in the reactor (3) and subjecting the obtained gas mixture to the reverse water gas shift reaction and feeding at least a portion of the CO-rich stream 14 (13) to at least one chemical or biochemical plant (4) to produce one or more chemical products (16).
A steel sheet having a chemical composition including in wt % C: 0.2-0.4%, Mn: 0.8-2.0%, Si: 0.1-0.5%, Al: 0.01-0.1%, Ti: 0.01-0.1%, B: 0.0005-0.005%, P≤0.040%, Ca≤0.01%, S≤0.006%, N≤0.01%. The steel sheet includes from the bulk to the surface of the coated steel sheet a bulk and a skin layer occupying the outermost 10% of the thickness on either side of the bulk. The bulk is topped by a skin layer occupying the outermost 10% of the thickness on either side of the bulk, the density of TiN/Ti(C,N) inclusions in the skin being smaller than 240 particles/mm2 and the clustering index of MnS inclusions in the skin being lower than 110 μm/mm2. This allows to manufacture hot pressed parts having a tensile strength equal to or greater than 1300 MPa and a bending angle normalized to 1.5 mm and measured in the transverse direction strictly greater than 48°.
The invention deals with a cold-rolled and heat-treated steel sheet, made of a steel having a composition comprising, by weight percent: C : 0.30 - 0.45 %, Mn : 1.0 – 3.0 %, Si : 0.8 – 2.5 %, Cr : 0.1 – 1.0 %, Mo : 0.05 - 0.7 %, Al : 0.01 – 0.6 %, Nb 0.001 - 0.1 %, Ni : 0.05-0.7%, P ≤ 0.020 %, S ≤ 0.010 %, N ≤ 0.008 % and comprising optionally one or more of the following elements, in weight percentage Ti ≤ 0.06 %, B ≤0.005 % the remainder of the composition being iron and unavoidable impurities resulting from the smelting, said steel sheet having a microstructure comprising, in surface fraction, 5% to 30% of retained austenite, the rest being partitioned martensite.
C22C 38/58 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et plus de 1,5% en poids de manganèse
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
C22C 38/54 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du bore
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 6/00 - Traitement thermique des alliages ferreux
A steel for coil spring comprising of the following elements,0.4% ≦ C ≦ 0.7%; 0.5% ≦ Mn ≦1.5%; 1% ≦ Si ≦ 2.5%; 0.001% ≦ Al ≦ 0.1%; 0.4% ≦ Cr ≦ 1.2%; 0.001% ≦ Nb ≦ 0.1%; 0 ≦ P ≦ 0.09%; 0 ≦ S ≦ 0.09%; 0% ≦ N ≦ 0.09%; 0% ≦ Ni ≦ 1%; 0% ≦ Mo ≦ 0.5%; 0% ≦ V≦ 0.2%; 0% ≦ Ti ≦ 0.1%; 0% ≦ Cu≦ 1%; 0% ≦ B ≦ 0.008%; 0% ≦ Sn≦ 0.1%; 0% ≦ Ce ≦ 0.1%; 0% ≦ Mg ≦ 0.10%; 0% ≦ Zr ≦ 0.10%; the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel comprising, by area percentage, 92% to 100% of Martensite, 0% to 8% of Residual Austenite, with a cumulative optional presence of bainite and ferrite from 0% to 5% wherein all the microconstituent have a prior austenite grain size from 8 to16.
C22C 38/26 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du niobium ou du tantale
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C21D 9/02 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour ressorts
C21D 8/06 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de barres ou de fils
C21D 6/00 - Traitement thermique des alliages ferreux
The invention deals with a cold-rolled and heat-treated steel sheet, made of a steel having a composition comprising, by weight percent: C : 0.30 - 0.45 %, Mn : 1.0 – 3.0 %, Si : 0.8 – 2.5 %, Cr : 0.1 – 1.0 %, Mo : 0.05 - 0.7 %, Al : 0.01 – 0.6 %, Nb 0.001 - 0.1 %, Ni : 0.05-0.7%, P ≤ 0.020 %, S ≤ 0.010 %, N ≤ 0.008 % and comprising optionally one or more of the following elements, in weight percentage Ti ≤ 0.06 %, B ≤0.005 % the remainder of the composition being iron and unavoidable impurities resulting from the smelting, said steel sheet having a microstructure comprising, in surface fraction, 5% to 30% of retained austenite, the rest being partitioned martensite.
C22C 38/58 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et plus de 1,5% en poids de manganèse
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
C22C 38/54 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du bore
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 6/00 - Traitement thermique des alliages ferreux
A pre-coated steel sheet includes a steel sheet precoated with a metallic coating, the coating including: 2.0 to 24.0% by weight of zinc; 1.1 to 7.0% by weight of silicon; optionally from 0.5 to 3.0% by weight of magnesium when the amount of silicon is between 1.1 and 4.0%, and optionally additional elements chosen from Pb, Ni, Zr or Hf, a content by weight of each additional element being less than 0.3% by weight, a balance being aluminum, unavoidable impurities and residual elements resulting from feeding ingots or from a passage of the steel sheet in a molten bath; a ratio Al/Zn by weight greater than 2.9, wherein the coating does not include In and the coating does not include Sn.
A method for manufacturing a rail includes casting a steel to obtain a semi-product. The steel has a composition comprising 0.20%≤C≤0.60%, 1.0%≤Si≤2.0%, 0.60%≤Mn≤1.60% and 0.5≤Cr≤2.2%, optionally 0.01%≤Mo≤0.3%, 0.01%≤V≤0.30%; the remainder being Fe and impurities. The method also includes hot rolling the semi-product into a hot rolled semi-product having the shape of the rail and comprising a head, with a final rolling temperature TFRT higher than Ar3; and cooling the head to a cooling stop temperature TCS between 200° C. and 520° C. The temperature of the head over time is comprised between a upper boundary having the coordinates defined by A1 (0 second, 780° C.), B1 (50 seconds, 600° C.), and C1 (110 seconds, 520° C.) and a lower boundary having the coordinates defined by A2 (0 second, 675° C.), B2 (50 seconds, 510° C.), and C2 (110 seconds, 300° C.). The method also includes maintaining the head in a temperature range comprised between 300° C. and 520° C. during a holding time thold of at least 12 minutes, and; cooling down the hot rolled semi-product to room temperature to obtain the rail.
A binder for extruded, pelletized, briquetted, or agglomerated material, the binder having a composition including from 80% to 90% in weight of a pyrolysis oil resulting from the pyrolysis of biomass and from 10% to 20% in weight of thermoplastics.
Luxembourg Institute of Science and Technology (LIST) (Luxembourg)
Inventeur(s)
Urios, Thomas
Choquet, Patrick
Ershov, Sergey
Abrégé
A coated steel substrate coated with a first coating including above 40 wt. % of chromium and optionally one or several elements chosen from yttrium, silicon, calcium, titanium, zirconium, vanadium, niobium and nickel in an amount below 10 wt. % for each element, the balance being chromium and a second coating including from 2 to 30 wt. % of Aluminum, from 10 to 40 wt. % of chromium and optionally one or several elements chosen from yttrium, silicon, calcium, titanium, zirconium, vanadium, niobium and nickel in an amount below 10 wt. % for each element, the balance being iron, the steel substrate including Cr≤2.0% by weight; a method for the manufacture of this coated steel substrate; a method for the manufacture of a coated hot steel product; a coated hot steel product and the use of a hot steel product.
C23C 2/00 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergéAppareils à cet effet
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/18 - Alliages ferreux, p. ex. aciers alliés contenant du chrome
C23C 14/16 - Matériau métallique, bore ou silicium sur des substrats métalliques, en bore ou en silicium
C23C 14/35 - Pulvérisation cathodique par application d'un champ magnétique, p. ex. pulvérisation au moyen d'un magnétron
C23C 28/02 - Revêtements uniquement de matériaux métalliques
66.
Coated steel sheet and high strength press hardened steel part and method of manufacturing the same
A coated steel sheet and press hardened steel part having a composition including, by weight percent: C 0.15-0.25%, Mn 0.5-1.8%, Si 0.1-1.25%, Al 0.01-0.1%, Cr 0.1-1.0%, Ti 0.01-0.1%, B 0.001-0.004%, P≤0.020%, S≤0.010%, N≤0.010% the remainder of the composition being iron and unavoidable impurities resulting from the smelting. The press hardened steel part includes a bulk having a microstructure including, in surface fraction, more than 95% of martensite and less than 5% of bainite, a coating layer at the surface of the steel part, a ferritic interdiffusion layer between the coating layer and the bulk, and a ratio between the ferritic grain width in the interdiffusion layer GWint over prior austenite grain size in the bulk PAGSbulk, satisfying following equation (GWint/PAGSbulk)−1≥30%.
C21D 1/02 - Durcissement d'objets ou de matériaux formés par forgeage ou laminage sans autre chauffage que celui nécessaire à la mise en forme
C21D 1/673 - Dispositifs pour trempe pour la trempe en coquille
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
C22C 38/32 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du bore
C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
C23C 2/02 - Pré-traitement du matériau à revêtir, p. ex. pour le revêtement de parties déterminées de la surface
C23C 2/28 - Post-traitement thermique, p. ex. par traitement dans un bain d'huile
A hot rolled steel sheet having a composition including of the following elements 0.060%≤Carbon≤0.1%, 1.4%≤Manganese≤1.8%, 0.3%≤Silicon≤0.8%, 0.01%≤Aluminum≤0.1%, 0.01%≤Niobium≤0.09%, 0.01%≤Titanium≤0.09%, 0.002%≤Phosphorus≤0.02%, 0%≤Sulfur≤0.005%, 0%≤Nitrogen≤0.01%, with 0.045%≤Ti+Nb≤0.060%, 0%≤Chromium≤0.5%, 0%≤Molybdenum≤0.4%, 0%≤Vanadium≤0.4%, 0%≤Calcium≤0.005%, 0%≤Copper≤1%, 0%≤Nickel≤1%, 0%≤Boron≤0.05%, 0%≤Magnesium≤0.05%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the steel sheet including in area fraction, 10% to 20% Bainite, 80% to 92% Ferrite wherein the aspect ratio of the grains of Bainite and Ferrite is less than 1.75 and a cumulated amount of Residual Austenite and Martensite is from 0% to 10%.
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
68.
A MARTENSITIC STEEL AND A METHOD OF MARTENSITIC STEEL THEREOF
A martensitic steel sheet including of the following elements 0.08%≤C≤0.14%; 1.95%≤Mn≤2.6%; 0.1%≤Si≤0.8%; 0.01%≤Al≤0.1%; 0.001%≤Ti≤0.1%; 0.0001%≤B≤0.05%; 0%≤S≤0.09%; 0%≤P≤0.09%; 0%≤N≤0.09%; 0.1%≤Cr≤1%; 0%≤Ni≤1%; 0%≤Cu≤1%; 0%≤Mo≤0.4%; 0%≤Nb≤0.1%; 0%≤V≤0.1%; 0%≤Sn≤0.1%; 0%≤Pb≤0.1%; 0%≤Sb≤0.1%; 0.001%≤Ca≤0.01%; the remainder composition being composed of iron and unavoidable impurities, the microstructure of said steel including, by area percentage, at least 92% of martensite, a cumulated amount of ferrite and bainite from 1% to 8%, and an optional amount of residual austenite from 0% to 2%.
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/26 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du niobium ou du tantale
C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
C22C 38/32 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du bore
C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
Side structure (1 ) for an automotive vehicle comprising a B-pillar (2), located between a front and a rear door opening, and a roof rail (3), extending along a roof panel, said roof rail (3) being attached to an upper portion (23) of said B-pillar (2) in an intermediate portion (33) of said roof rail (3), said B-pillar (2) comprising an inner and an outer B-pillar (21, 22) and said roof rail (3) comprising an inner and an outer roof rail (31, 32), said inner and outer parts (21, 22, 31, 32) enclosing a hollow volume (5), said side structure (1 ) comprising a reinforced portion (11 ) extending along said upper portion (23) of said B-pillar (2) and along said intermediate portion (33) of said roof rail (3), wherein an insert (6) occupies part of said hollow volume (5) in said reinforced portion (11 ) and wherein said insert (6) is made of metallic material.
Steel producing device comprising an electric arc furnace and a denitrification device The invention relates to a steel producing device (1) comprising an electric arc furnace (2) having an inner surface (6) delimiting a nominal production volume of liquid steel (10), the liquid steel being topped by a slag layer (12). The steel producing device comprises a denitrification device (4) comprising an injection lance (32) extending from the inner surface (6) up to a tip (34) from which solid carbon material is injected, the injection lance (32) being configured: - so that the tip of the injection lance is arranged under the steel and slag interface; - so that the angle between a longitudinal direction of the lance and a horizontal plane is strictly greater than 0° and strictly less than 90°; - so that a part of the injection lance is arranged above the steel and slag interface level.
C21C 5/52 - Fabrication de l'acier au four électrique
F27B 3/08 - Fours à sole, p. ex. fours à réverbérationFours à arc électrique à chauffage électrique, p. ex. fours à arc électrique, avec ou sans une autre source de chaleur
F27D 3/18 - Chargement de matériaux particulaires en utilisant un fluide transporteur
71.
HOT ROLLED STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF
A method of production of a hot rolled steel sheet having a composition including the elements, expressed in percentage by weight 0.11%≤Carbon≤0.16%, 1%≤Manganese≤2%, 0.1%≤Silicon≤0.7%, 0.02%≤Aluminum≤0.1%, 0.15%≤Molybdenum≤0.4%, 0.15%≤Vanadium≤0.4%, 0.002%≤Phosphorus≤0.02%, 0%≤Sulfur≤0.005%, 0%≤Nitrogen≤0.01%, and can contain one or more of the following optional elements 0%≤Chromium≤0.5%, 0%≤Niobium≤0.05%, 0.0001%≤Calcium≤0.005%, 0%≤Boron≤0.001%, 0%≤Magnesium≤0.0010%, 0%≤Titanium≤0.01%, with 0.3%≤Mo+V+Nb≤0.6%, the remainder composition being composed of iron and unavoidable impurities, the microstructure of steel sheet including in area fraction, 70% to 90% Bainite, 10% to 25% Ferrite wherein the cumulated amounts of Bainite and Ferrite is at least 90% and a cumulated amount of Residual Austenite and Martensite is between 0% and 10%.
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/46 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du vanadium
C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
C22C 38/58 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et plus de 1,5% en poids de manganèse
72.
STEEL PRODUCING DEVICE COMPRISING AN ELECTRIC ARC FURNACE AND A DENITRIFICATION DEVICE
The invention relates to a steel producing device (1) comprising an electric arc furnace (2) having an inner surface (6) delimiting a nominal production volume of liquid steel (10), the liquid steel being topped by a slag layer (12). The steel producing device comprises a denitrification device (4) comprising an injection lance (32) extending from the inner surface (6) up to a tip (34) from which solid carbon material is injected, the injection lance (32) being configured: - so that the tip of the injection lance is arranged under the steel and slag interface; - so that the angle between a longitudinal direction of the lance and a horizontal plane is strictly greater than 0° and strictly less than 90°; - so that a part of the injection lance is arranged above the steel and slag interface level.
C21C 5/52 - Fabrication de l'acier au four électrique
F27B 3/08 - Fours à sole, p. ex. fours à réverbérationFours à arc électrique à chauffage électrique, p. ex. fours à arc électrique, avec ou sans une autre source de chaleur
F27D 3/18 - Chargement de matériaux particulaires en utilisant un fluide transporteur
A method for heating at least one semi-finished metal products to be further laminated, via a heat exchanging device comprising a chamber containing solid particles, supporting means able to support semi-finished metal product and a gas injector, having the successive steps of: i. injecting a gas into said chamber so as to form a fluidized bed, ii. inserting at least one hot semi-finished metal product such that said at least one hot semi-finished metal product is able to transfer heat to said fluidized bed, iii. inserting said at least one semi-finished metal product to be further laminated such that said fluidized bed is able to transfer heat to said at least one semi-finished metal product to be further laminated, iv. taking out said at least one semi-finished metal product to be further laminated of said fluidized bed when the temperature of said at least one semi-finished metal product to be further laminated is less than 100° C. below the temperature of said fluidized bed.
F27B 15/02 - Parties constitutives, accessoires ou équipement spécialement adaptés à ces types de fours
B21B 1/02 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer de grosses pièces, p. ex. des lingots, brames, billettes dont la section droite est sans importance
B21B 15/00 - Systèmes permettant d'effectuer des opérations auxiliaires pour le travail des métaux, spécialement combinés, disposés ou adaptés pour être associés aux laminoirs
74.
A METHOD TO PRODUCE A ZNALMG COATED STEEL SHEET AND SAID STEEL SHEET
The present invention relates to a method for manufacturing a steel sheet provided with a coating comprising from 3.50 to 4.10 wt.% of Al, from 1.90 to 3.20 wt.% of Mg, from 1 to 15 ppm of Bi, unavoidable impurities and optionally one or more additional elements selected from Si, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Cr, or Zr, the weight content of each additional element in the coating being less than 0.3%, the remainder being Zn. Such a steel sheet is well suited for industrial applications requiring high corrosion resistance.
The present invention relates to a method for manufacturing a steel sheet provided with a coating comprising from 3.50 to 4.10 wt.% of Al, from 1.90 to 3.20 wt.% of Mg, from 1 to 15 ppm of Bi, unavoidable impurities and optionally one or more additional elements selected from Si, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Cr, or Zr, the weight content of each additional element in the coating being less than 0.3%, the remainder being Zn. Such a steel sheet is well suited for industrial applications requiring high corrosion resistance.
A hot-stamped coated steel part includes a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer. The total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition:
A hot-stamped coated steel part includes a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer. The total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition:
4
0
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A hot-stamped coated steel part includes a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer. The total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition:
4
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The hot-stamped coated steel part comprises an undeformed portion having a thickness ePflat from 0.6 mm to 3.5 mm, and at least one deformed portion. A lineic density of cracks dC in the coating in the undeformed portion is higher than or equal to a minimum lineic density of cracks dCmin(ePflat) defined as:
A hot-stamped coated steel part includes a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer. The total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition:
4
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E
pc
≤
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with
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3
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.
3
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The hot-stamped coated steel part comprises an undeformed portion having a thickness ePflat from 0.6 mm to 3.5 mm, and at least one deformed portion. A lineic density of cracks dC in the coating in the undeformed portion is higher than or equal to a minimum lineic density of cracks dCmin(ePflat) defined as:
dC
m
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C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
B21D 22/02 - Estampage utilisant des dispositifs ou outils rigides
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C22C 21/02 - Alliages à base d'aluminium avec le silicium comme second constituant majeur
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
A hot-stamped coated steel part includes a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer. The total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition:
A hot-stamped coated steel part includes a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer. The total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition:
40
≤
E
pc
≤
80
with
E
pc
=
(
33.3
-
e
IDL
0.9
+
e
IDL
-
e
coating
)
2
-
148
(
e
IDL
-
e
coating
)
-
(
33.3
-
e
IDL
0.9
+
e
IDL
-
e
coating
)
The hot-stamped coated steel part comprises an undeformed portion having a thickness ePflat from 0.6 mm to 3.5 mm, and at least one deformed portion. A lineic density of cracks dC in the coating in the undeformed portion is higher than or equal to a minimum lineic density of cracks dCmin(ePflat) defined as:
A hot-stamped coated steel part includes a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer. The total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition:
40
≤
E
pc
≤
80
with
E
pc
=
(
33.3
-
e
IDL
0.9
+
e
IDL
-
e
coating
)
2
-
148
(
e
IDL
-
e
coating
)
-
(
33.3
-
e
IDL
0.9
+
e
IDL
-
e
coating
)
The hot-stamped coated steel part comprises an undeformed portion having a thickness ePflat from 0.6 mm to 3.5 mm, and at least one deformed portion. A lineic density of cracks dC in the coating in the undeformed portion is higher than or equal to a minimum lineic density of cracks dCmin(ePflat) defined as:
dC
min
(
e
pflat
)
=
15.5
+
91
*
e
-
7.44
-
2.88
*
arctan
(
5.49
*
(
e
pflat
-
1.71
)
)
-
106.5
*
e
-
8.62
-
3.34
*
arctan
(
5.49
*
(
e
pflat
-
1.71
)
)
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
B21D 22/02 - Estampage utilisant des dispositifs ou outils rigides
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C22C 21/02 - Alliages à base d'aluminium avec le silicium comme second constituant majeur
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
A steel sheet and press hardened steel part having a composition including, by weight percent: C 0.05-0.4%, Mn 0.5-4%, Si 0.1-1.3%, Al 0.01-0.1%, Cr 0.01-1.0%, Ti 0.01-0.1%, B 0.0005-0.08%, Cu 0.05-0.4%, Sn 0.002-0.1%, P≤0.020%, S≤0.010%, N≤0.02% the remainder of the composition being iron and unavoidable impurities resulting from the smelting process and depending on the process route. The press hardened steel part has a microstructure including, in surface fraction, more than 95% of martensite, the rest being optional bainite and retained austenite.
C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/20 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du cuivre
C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
C22C 38/32 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du bore
79.
METHOD FOR CONTROLLING THE SUCTION OF PROCESS GASSES IN AN ELECTRIC ARC FURNACE AND ASSOCIATED STEEL PRODUCTION INSTALLATION
The method for controlling the suction of process gases emitted within a vessel (22) of an electric arc furnace (20) during its operation comprises an adaptation step of adapting the flowrate (Y) of sucked in process gases based on the value of at least one parameter, said at least one parameter comprising a flowrate (X2) of carbonaceous matter added within the vessel (22) during operation of the electric arc furnace (20).
C21C 5/52 - Fabrication de l'acier au four électrique
F27B 3/08 - Fours à sole, p. ex. fours à réverbérationFours à arc électrique à chauffage électrique, p. ex. fours à arc électrique, avec ou sans une autre source de chaleur
F27B 3/28 - Aménagement des dispositifs de commande, de surveillance, d'alarme ou des dispositifs similaires
F27D 19/00 - Aménagement des dispositifs de commande
80.
High toughness press-hardened steel part and method of manufacturing the same
A steel sheet and press hardened steel part having a composition including, by weight percent: C 0.05-0.3%, Mn 0.5-4%, Si 0.24-1.7%, Al 0.01-0.1%, Cr 0.01-1.0%, Ti 0.01-0.1%, B 0.0005-0.08%, Cu 0.05-0.4%, P≤0.020%, S≤0.010%, N≤0.02% the remainder of the composition being iron and unavoidable impurities resulting from the production route. The press hardened steel part has a microstructure including, in surface fraction, more than 95% of martensite, the rest being optional bainite and retained austenite.
C22C 38/54 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du bore
C21D 1/673 - Dispositifs pour trempe pour la trempe en coquille
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
81.
METHOD FOR CONTROLLING THE SUCTION OF PROCESS GASSES IN AN ELECTRIC ARC FURNACE AND ASSOCIATED STEEL PRODUCTION INSTALLATION
The method for controlling the suction of process gases emitted within a vessel (22) of an electric arc furnace (20) during its operation comprises an adaptation step of adapting the flowrate (Y) of sucked in process gases based on the value of at least one parameter, said at least one parameter comprising a flowrate (X2) of carbonaceous matter added within the vessel (22) during operation of the electric arc furnace (20).
C21C 5/52 - Fabrication de l'acier au four électrique
F27B 3/08 - Fours à sole, p. ex. fours à réverbérationFours à arc électrique à chauffage électrique, p. ex. fours à arc électrique, avec ou sans une autre source de chaleur
F27B 3/28 - Aménagement des dispositifs de commande, de surveillance, d'alarme ou des dispositifs similaires
F27D 19/00 - Aménagement des dispositifs de commande
82.
METHOD FOR ESTIMATING THE FLOW RATE IN AN ATOMIZER
metalpinductionnozzleptnozzlemetalmetal based on the identified value. The invention also relates to the method thereof for managing the fluid-to- metal ratio during atomization, to the monitoring device thereof and to the atomizer thereof.
B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
G01F 1/68 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets thermiques
B22F 1/052 - Poudres métalliques caractérisées par la dimension ou la surface spécifique des particules caractérisées par un mélange de particules de dimensions différentes ou par la distribution granulométrique des particules
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
83.
METHOD FOR ESTIMATING THE FLOW RATE IN AN ATOMIZER
metal pinductionnozzleptnozzlemetalmetal based on the identified value. The invention also relates to the method thereof for managing the fluid-to-metal ratio during atomization, to the monitoring device thereof and to the atomizer thereof.
B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
G01F 1/68 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets thermiques
B22F 1/052 - Poudres métalliques caractérisées par la dimension ou la surface spécifique des particules caractérisées par un mélange de particules de dimensions différentes ou par la distribution granulométrique des particules
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
A vapour jet coater for depositing, on a running substrate, coatings formed from metal or metal alloy, the vapour jet coater including successively a repartition chamber, configured to be connectable to an evaporation pipe, and a vapour outlet orifice, connected to said repartition chamber and able to eject a metal alloy vapour along a main ejection plan and a main ejection direction, comprising successively i. a converging section, ii. a diverging section.
metalreservoirnozzleinductionmetalmetal of molten metal based on ratio (1): Formula (I). The invention also relates to the method thereof for managing the fluid-to- metal ratio during atomization, to the monitoring device thereof and to the atomizer thereof.
B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
G01F 1/68 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets thermiques
B22F 1/052 - Poudres métalliques caractérisées par la dimension ou la surface spécifique des particules caractérisées par un mélange de particules de dimensions différentes ou par la distribution granulométrique des particules
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
86.
METHOD FOR ESTIMATING THE FLOW RATE IN AN ATOMIZER
metalreservoirnozzleinduction metalmetal of molten metal based on ratio (1): (1). The invention also relates to the method thereof for managing the fluid-to-metal ratio during atomization, to the monitoring device thereof and to the atomizer thereof.
B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
G01F 1/684 - Dispositions de structureMontage des éléments, p. ex. relativement à l'écoulement de fluide
G01F 1/688 - Dispositions de structureMontage des éléments, p. ex. relativement à l'écoulement de fluide utilisant un élément de chauffage, de refroidissement ou de détection d'un type particulier
B22F 1/052 - Poudres métalliques caractérisées par la dimension ou la surface spécifique des particules caractérisées par un mélange de particules de dimensions différentes ou par la distribution granulométrique des particules
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
87.
Apparatus for measuring the internal gas pressure of a coke oven, associated coke oven system and method
An apparatus (20) for measuring internal gas pressure of a coke oven (31) including a guide (24) receiving at least three pressure probes (21,22,23) each connected to a pressure sensor (61,62,63), wherein, said guide (24) has a circular cross section then forming a tubular guide (24). method (70) for manufacturing the apparatus is also provided. A coke oven (31) including at least one hole (301) through which the above apparatus (20) is inserted horizontally such that a front part of each of the three pressure probes (21,22,23) is inside the coke oven (31) and a rear part of each of the three pressure probes (21,22,23) is outside the coke oven (31).
G01L 19/00 - Détails ou accessoires des appareils pour la mesure de la pression permanente ou quasi permanente d'un milieu fluent dans la mesure où ces détails ou accessoires ne sont pas particuliers à des types particuliers de manomètres
C10B 41/00 - Dispositifs de sécurité, p. ex. dispositifs de signalisation ou de commande utilisés lors du défournement
A hot-stamped coated steel part includes a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer. The total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition:
A hot-stamped coated steel part includes a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer. The total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition:
40
≤
E
p
c
≤
8
0
with
E
pc
=
(
3
3
.
3
-
e
IDL
0
.
9
+
e
IDL
-
e
coating
)
2
-
1
4
8
(
e
IDL
-
e
coating
)
-
(
3
3
.
3
-
e
IDL
0
.
9
+
e
IDL
-
e
coating
)
A hot-stamped coated steel part includes a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer. The total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition:
40
≤
E
p
c
≤
8
0
with
E
pc
=
(
3
3
.
3
-
e
IDL
0
.
9
+
e
IDL
-
e
coating
)
2
-
1
4
8
(
e
IDL
-
e
coating
)
-
(
3
3
.
3
-
e
IDL
0
.
9
+
e
IDL
-
e
coating
)
The hot-stamped coated steel part comprises an undeformed portion having a thickness ePflatfrom 0.6 mm to 3.5 mm, and at least one deformed portion. A lineic density of cracks dC in the coating in the undeformed portion is higher than or equal to a minimum lineic density of cracks dCmin(ePflat) defined as:
A hot-stamped coated steel part includes a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer. The total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition:
40
≤
E
p
c
≤
8
0
with
E
pc
=
(
3
3
.
3
-
e
IDL
0
.
9
+
e
IDL
-
e
coating
)
2
-
1
4
8
(
e
IDL
-
e
coating
)
-
(
3
3
.
3
-
e
IDL
0
.
9
+
e
IDL
-
e
coating
)
The hot-stamped coated steel part comprises an undeformed portion having a thickness ePflatfrom 0.6 mm to 3.5 mm, and at least one deformed portion. A lineic density of cracks dC in the coating in the undeformed portion is higher than or equal to a minimum lineic density of cracks dCmin(ePflat) defined as:
dC
min
(
e
pflat
)
=
1
5
.
5
+
9
1
*
e
-
7.44
-
2.88
*
arctan
(
5.49
*
(
e
pflat
-
1
.
7
1
)
)
-
106.5
*
e
-
8.62
-
3
.
3
4
*
arctan
(
5.49
*
(
e
pflat
-
1.71
)
)
B21D 22/02 - Estampage utilisant des dispositifs ou outils rigides
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C22C 21/02 - Alliages à base d'aluminium avec le silicium comme second constituant majeur
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
Testing methods and apparatus for testing the health of steel tubes used in reformers and other tubes and pipes used in other high temperature applications. The method includes the steps of transmitting two sinusoidal electromagnetic signals, each having a different frequency F1 and F2, into the reformer tube, receiving a response signal, and analyzing the received response signal's intermodulation frequencies to determine the state of the steel reformer tube.
G01N 27/82 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant des variables magnétiques pour rechercher la présence des criques
G01N 27/83 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant des variables magnétiques pour rechercher la présence des criques en étudiant des champs magnétiques de dispersion
G01N 27/90 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant des variables magnétiques pour rechercher la présence des criques en utilisant les courants de Foucault
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 8/04 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes pour produire des produits plats ou des bandes pour l'emboutissage profond
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/08 - Alliages ferreux, p. ex. aciers alliés contenant du nickel
C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C22C 38/16 - Alliages ferreux, p. ex. aciers alliés contenant du cuivre
C22C 38/20 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du cuivre
C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
C22C 38/24 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du vanadium
C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
C22C 38/32 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du bore
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/46 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du vanadium
C22C 38/58 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et plus de 1,5% en poids de manganèse
C23C 2/02 - Pré-traitement du matériau à revêtir, p. ex. pour le revêtement de parties déterminées de la surface
A super plastic high manganese low density annealed cold rolled steel comprising of 0.12% ≤ carbon ≤ 0.5%, 12% ≤ manganese ≤ 20%, 5% ≤ aluminum ≤ 9%, 0% ≤ silicon ≤ 2%, 0% ≤ phosphorus ≤ 0.1%, 0% ≤ sulfur ≤ 0.03%, 0% ≤ nitrogen ≤ 0.1%, 0 ≤ niobium ≤ 0.03%, 0 ≤ titanium ≤ 0.2%, 0% ≤ molybdenum ≤ 0.5%, 0% ≤ chromium ≤ 0.6%, 0% ≤ copper ≤ 2.0%, 0% ≤ nickel ≤ 3.0%, 0% ≤ calcium ≤ 0.005%, 0% ≤ boron ≤ 0.01%, 0% ≤ Magnesium ≤ 0.005%, 0% ≤ Zirconium ≤ 0.005%, 0% ≤ Cerium ≤ 0.1%, and the balance including iron and unavoidable impurities, the steel sheet having a microstructure comprising, in area fraction, 45% to 90% ferrite and 10% to 55% of austenite having an average grain size from 0.5 to 10 microns with an aspect ratio of the residual austenite grains from 1 to 4.5.
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
A method for producing a welded blank (1) includes providing two precoated sheets (2), butt welding the precoated sheets (2) using a filler wire. The precoating (5) entirely covers at least one face (4) of each sheet (2) at the time of butt welding. The filler wire (20) has a carbon content between 0.01 wt. % and 0.45 wt. %. The composition of the filler wire (20) and the proportion of filler wire (20) added to the weld pool is chosen such that the weld joint (22) has (a) a quenching factor FTWJ: FTWJ−0.9 FTBM≥0, where FTBM is a quenching factor of the least hardenable substrate (3), and FTWJ and FTBM are determined: FT=128+1553×C+55×Mn+267×Si+49×Ni+5×Cr−79×Al−2×Ni2−1532×C2−5×Mn2−127×Si2−40×C×Ni−4×Ni×Mn, and (b) a carbon content CWJ<0.15 wt. % or, if CWJ≥0.15 wt. %, a softening factor FAWJ such that FAWJ≥5000, where FA=10291+4384.1×Mo+3676.9Si−522.64×Al−2221.2×Cr−118.11×Ni−1565.1×C−246.67×Mn.
B62D 21/15 - Châssis, c.-à-d. armature sur laquelle une carrosserie peut être montée comportant des moyens amortisseurs de chocs, p. ex. châssis conçus pour changer de forme ou de dimensions d'une façon définitive ou temporaire à la suite d'une collision avec un autre corps
B21D 22/02 - Estampage utilisant des dispositifs ou outils rigides
B23K 26/00 - Travail par rayon laser, p. ex. soudage, découpage ou perçage
B62D 27/02 - Assemblages entre sous-ensembles de la carrosserie rigides
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 9/50 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour joints de soudure
C22C 19/05 - Alliages à base de nickel ou de cobalt, seuls ou ensemble à base de nickel avec du chrome
C22C 30/02 - Alliages contenant moins de 50% en poids de chaque constituant contenant du cuivre
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/26 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du niobium ou du tantale
C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
C22C 38/32 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du bore
C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
93.
A NON-HEAT TREATED COLD ROLLED SUPER PLASTIC HIGH MANGANESE LOW DENSITY STEEL SHEET AND A METHOD OF PRODUCTION THEREOF
A non-heat treated cold rolled super plastic high manganese low density steel sheet comprising of 0.12% ≤ carbon ≤ 0.5%,12% ≤ manganese ≤ 20%,5% ≤ aluminum ≤ 9%,0% ≤ silicon ≤ 2%,0% ≤ phosphorus ≤ 0.1%,0% ≤ sulfur ≤ 0.03%,0% ≤ nitrogen ≤ 0.1%,0 ≤ niobium ≤ 0.03%,0 ≤ titanium ≤ 0.2%,0% ≤ molybdenum ≤ 0.5%,0% ≤ chromium ≤ 0.6%,0% ≤ copper ≤ 2.0%,0% ≤ nickel ≤ 3.0%,0% ≤ calcium ≤ 0.005%,0% ≤ boron ≤ 0.01%,0% ≤ Magnesium ≤ 0.005%,0% ≤ Zirconium ≤ 0.005%,0% ≤ Cerium ≤ 0.1%,and the balance including iron and unavoidable impurities, the steel sheet having a microstructure comprising, in area fraction, 45% to 90% ferrite and 10% to 55% of austenite having an average grain size from 0.5 to 25 microns with an aspect ratio of the residual austenite grains from 1 to 4.5.
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 1/02 - Durcissement d'objets ou de matériaux formés par forgeage ou laminage sans autre chauffage que celui nécessaire à la mise en forme
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
A reinforcement frame (1) for a battery pack (2) of an electric or hybrid vehicle (37), the battery pack including a plurality of battery cells lying on and secured to a shield element, the reinforcement frame including at least: a reinforcement frame fastening portion (3) provided to be secured to both the battery pack and the body of the vehicle, and a reinforcement frame hollow portion (4) provided to surround at least the battery cells.
H01M 50/249 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports spécialement adaptés aux aéronefs ou aux véhicules, p. ex. aux automobiles ou aux trains
B60L 50/60 - Propulsion électrique par source d'énergie intérieure au véhicule utilisant de la puissance de propulsion fournie par des batteries ou des piles à combustible utilisant de l'énergie fournie par des batteries
B60L 50/64 - Détails de construction des batteries spécialement adaptées aux véhicules électriques
H01M 50/262 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports avec des moyens de fixation, p. ex. des serrures
95.
PRESS-HARDENED STEEL PART AND METHOD OF MANUFACTURING THE SAME
The invention deals with a high strength and high bendability press hardened steel part made of a rerolled steel sheet having a composition comprising, by weight percent: C : 0.15 - 0.22 %, Mn : 0.5 – 2.5 %, Si : 0.1 – 1.25 %, Al : 0.01 – 0.1 %, Cr : 0.1 – 1.0 %, B : 0.0005 - 0.004 %, Ti : 0.01 - 0.1 %, Mo : 0.05 - 0.40 %, Nb : 0.01 - 0.08 %, P ≤ 0.020 %, S ≤ 0.010 %, N ≤ 0.02 % and comprising optionally one or more of the following elements, by weight percent: Ca ≤ 0.1 %, the remainder of the composition being iron and unavoidable impurities resulting from the smelting. The press hardened steel part comprises a bulk having a microstructure comprising, in surface fraction, 95% or more of martensite the rest being bainite, an interdiffusion layer, and a coating layer based on aluminium.
C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
C22C 38/26 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du niobium ou du tantale
C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
C22C 38/32 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du bore
C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 7/13 - Modification des propriétés physiques du fer ou de l'acier par déformation par travail à chaud
C21D 1/673 - Dispositifs pour trempe pour la trempe en coquille
C21D 1/02 - Durcissement d'objets ou de matériaux formés par forgeage ou laminage sans autre chauffage que celui nécessaire à la mise en forme
The invention relates to a sandwich panel comprising a photovoltaic active area positioned on the outer sheet and whose upper, respectively lower, electrical connector is positioned in an upper, respectively lower, cavity, the upper cavity being positioned within the insulation material in the upper half of the sandwich panel, the lower cavity being positioned within the insulation material in the lower half of the sandwich panel and the upper cavity and the lower cavity being either both adjacent to the inner edge rabbet of the inner sheet so that the electrical connectors can be accessed along the inner edge rabbet from their cavity, or both adjacent to the second inner riser of the inner sheet so that the electrical connectors can be accessed along the second inner riser from their cavity.
H02S 20/25 - Éléments de couverture de toit en tuiles
E04D 3/35 - Plaques ou feuilles rigides de couverture comportant plusieurs couches, p. ex. pour l’isolation
H02S 20/26 - Matériaux de construction intégrés avec modules PV, p. ex. éléments de façade
H02S 40/36 - Composants électriques caractérisés par des moyens d'interconnexions électriques spéciaux entre plusieurs modules PV, p. ex. connexion électrique module à module
97.
A COMPOSITE MATERIAL COMPRISING IRON OXIDES AND BIOMASS
A composite material consisting of lignocellulosic biomass having a moisture content from 5 to 10% by weight and an iron material comprising at least 30% of iron oxides, the molar ratio Fe/C of said composite material being from 3 to 6.5.
A method to produce a briquette of composite material comprising the steps of providing biochar (2) and an iron material (1) comprising at least 30% of iron oxides, mixing the biochar (2) and the iron material (1) in appropriate amounts to obtain a predefined molar Fe/C ratio in the range from 3 to 6.5 and briquetting the obtained mixture to form a briquette of composite material (6).
A composite steel semi-product having a shell and bulk, said shell having a chemical composition containing, in weight%, Si: from 2.0% to 4.0%, said bulk having a chemical composition containing, in weight%, Si: from 3.0% to 8.0%, said shell and said bulk compositions comprising also the following elements expressed in weight%: C: 0.0001% - 0.05%, Mn: 0.05% - 2.0%, Al: 0.05% - 1.3%, and can contain one or more optional elements, the remainder composition being composed of iron and unavoidable impurities caused by processing, wherein the amount of Si in the bulk is higher than in the shell and wherein said shell is provided on the four longitudinal sides of said semi-product.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
B22D 11/00 - Coulée continue des métaux, c.-à-d. en longueur indéfinie
B22D 11/041 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules sans fond pour la coulée verticale
B22D 11/108 - Alimentation en additifs, poudres ou similaires