The steel production device (1) comprising an electric arc furnace (2), wherein a metallic material is melted, and a ladle (4), wherein the melted metallic material is poured from an outlet (12) of the electric arc furnace (2). The steel production device further comprises a sleeve (22) extending between the outlet (12) of the electric arc furnace (2) and the ladle (4), the melted metallic material being poured into said sleeve (22) from the electric arc furnace outlet (12) to the ladle (4), said sleeve (22) being arranged to isolate the melted metallic material stream (20) flowing through said sleeve (22) from ambient air.
C21C 5/52 - Manufacture of steel in electric furnaces
F27B 3/08 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
F27B 3/19 - Arrangement of devices for discharging
F27D 3/14 - Charging or discharging liquid or molten material
B22D 2/00 - Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
B22D 41/00 - Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
B22D 41/12 - Travelling ladles or similar containersCars for ladles
B22D 41/58 - Pouring-nozzles with gas injecting means
The invention relates to a pickling installation comprising: - a pickling tank, - a concentration tank wherein said concentration tank is connected to said pickling tank, - a crossflow filtration device, able to produce a permeate and a retentate, comprising an entry side, an permeate exit side and a retentate exit side wherein - said entry side 5e is connected to said concentration tank, - said retentate exit side is connected to said entry side and to said concentration tank.
The invention relates to a pickling installation for a pickling solution to pickle electrical steel comprising: - a pickling tank, - a concentration tank wherein said concentration tank is connected to said pickling tank, - a crossflow filtration device, able to produce a permeate and a retentate, comprising an entry side, an permeate exit side and a retentate exit side wherein - said entry side is connected to said concentration tank, - said retentate exit side is connected to said entry side and to said concentration tank.
A direct reduction shaft furnace having at least one probe disposed vertically within the reduction zone thereof. The probe preferably extends from the top to the bottom of the reduction zone. The probe allows for gas sampling along the length thereof and transmittal of the gas to at least one type of gas analysis device. The probe may also allow for the measurement of the temperature and pressure of the gas sample as it is taken.
F27B 1/28 - Arrangements of monitoring devices, of indicators, of alarm devices
C21B 13/02 - Making spongy iron or liquid steel, by direct processes in shaft furnaces
F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices
G01K 13/024 - Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow of moving gases
H01J 49/04 - Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locksArrangements for external adjustment of electron- or ion-optical components
e2242e4.22O + 2 HCl, so as to obtain a reaction mixture comprising hydrochloric acid and hydrated forms of iron sulphate, wherein said reactants comprises from 5 to 40 weight percent of sulphuric acid and ii. distilling said reaction mixture to obtain a distillate and a concentrate, iii. mixing said concentrate with water such that the weight ratio between the concentrate and the water is from 0.1 to 10, to obtain an aqueous solution, iv. setting said aqueous solution to a temperature from -10 to 50°C to obtain a liquid phase and a solid phase, v. separating said liquid phase and said solid phase obtained in step iv.
The patent relates to a method of production of a non-oriented electrical steel sheet comprising a step of warm rolling said hot rolled steel sheet, wherein said warm rolling at least three rolling passes, wherein - the first rolling pass is performed with an entry temperature of the steel sheet from 70°C to 140°C, - the second rolling pass is performed with an entry temperature of the steel sheet from 90°C to 210°C and being greater that the entry temperature of said first rolling pass, - the third rolling pass is performed with an entry temperature of the steel sheet from 190°C to 250°C and being greater that the entry temperature of said second rolling pass, - the remaining rolling passes are performed with an entry temperature of the steel sheet from 50°C to 100°C.
C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
H01F 1/147 - Alloys characterised by their composition
H01F 1/16 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets
7.
A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL
The patent relates to a method of production of a non-oriented electrical steel sheet comprising a step of warm rolling, wherein said warm rolling comprises five to eight rolling passes, wherein - the first rolling pass is performed with an entry temperature of the steel sheet from 70 to 120°C, - the second rolling pass is performed with an entry temperature of the steel sheet from 90 to 175°C and greater than the entry temperature of the first rolling pass, - the remaining rolling passes are performed with an entry temperature of the steel sheet from 190 to 250°C.
C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
H01F 1/147 - Alloys characterised by their composition
H01F 1/16 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets
8.
A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL
The patent relates to a method of production of a non-oriented electrical steel sheet comprising a step of warm rolling said hot rolled steel sheet, wherein said warm rolling at least three rolling passes, wherein - the first rolling pass is performed with an entry temperature of the steel sheet from 70°C to 140°C, - the second rolling pass is performed with an entry temperature of the steel sheet from 90°C to 210°C and being greater that the entry temperature of said first rolling pass, - the third rolling pass is performed with an entry temperature of the steel sheet from 190°C to 250°C and being greater that the entry temperature of said second rolling pass, - the remaining rolling passes are performed with an entry temperature of the steel sheet from 50°C to 100°C.
C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
H01F 1/147 - Alloys characterised by their composition
H01F 1/16 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets
9.
A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL
The patent relates to a method of production of a non-oriented electrical steel sheet comprising a step of warm rolling, wherein said warm rolling comprises five to eight rolling passes, wherein - the first rolling pass is performed with an entry temperature of the steel sheet from 70 to 120°C, - the second rolling pass is performed with an entry temperature of the steel sheet from 90 to 175°C and greater than the entry temperature of the first rolling pass, - the remaining rolling passes are performed with an entry temperature of the steel sheet from 190 to 250°C.
C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
H01F 1/147 - Alloys characterised by their composition
H01F 1/16 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets
10.
METHOD FOR DETERMINING AN OPTIMIZED SILICON CONTENT IN LIQUID STEEL
A method to calculate an optimized amount of silicon to be added in a liquid steel produced using copper-containing scrap. The invention is also related to a method of hot rolling a steel semi-product resulting from the casting of a liquid steel produced using copper-containing scrap.
A ferrous alloy powder for additive manufacturing, obtained by atomization with a gas made of at least 95% in volume of nitrogen, the alloy including carbon up to 0.5 wt. %, titanium up to 11.0 wt. %, boron up to 5 wt. %, manganese up to 30 wt. %, aluminium up to 15 wt. %, silicon up to 1.5 wt. %, vanadium up to 0.5 wt. %, copper up to 2 wt. %, niobium up to 2 wt. %, the remainder being iron and residual elements, the powder including endogenous nitrides and/or carbonitrides of at least one element chosen among a group consisting of titanium, aluminium, boron, vanadium, silicon, and niobium, the nitrogen content of such ferrous alloy powder being above the solubility limit of nitrogen in such alloy, at the atomization temperature. A manufacturing method of such powder is also provided.
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B22F 1/05 - Metallic powder characterised by the size or surface area of the particles
B33Y 70/00 - Materials specially adapted for additive manufacturing
A martensitic steel sheet comprising the following elements, 0.07% ≦ C ≦ 0.12%; 1.9% ≦ Mn ≦ 2.5 %; 0.2% ≦ Si ≦ 0.6%; 0.01% ≦ Al ≦ 0.1%; 0.1% ≦ Cr ≦ 0.5%; 0.2% ≦ Mo ≦ 0.6%; 0.001% ≦ Nb ≦ 0.1%; 0.001% ≦ Ti ≦ 0.1%; 0.0005% ≦ B ≦ 0.005%; 0% ≦ S ≦ 0.09%; 0% ≦ P ≦ 0.09%; 0% ≦ N ≦ 0.09%; 0% ≦ V≦ 0.1%; 0% ≦ Ni ≦ 1%; 0% ≦ Cu ≦ 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 caused by processing, the microstructure of said steel consisting of, by area percentage, martensite from 50% to 70%, ferrite from 10% to 30% and Bainite from 10% to 35%.
The patent relates to a method of production of a non-oriented electrical steel sheet comprising a step of warm rolling said hot rolled steel sheet, wherein said warm rolling comprises five to eight rolling passes, wherein - the warm rolling comprises a peak temperature rolling pass being the fourth or fifth rolling passes, having an entry temperature of the steel sheet from 210°C to 250°C and being the warm rolling pass having the greatest entry temperature, - the rolling passes prior said peak rolling temperature rolling pass are performed with an entry temperature of the steel sheet from 170°C to 230°C, - the entry temperature of the steel sheet for the warm rolling passes after said peak temperature rolling is from 10°C to 30°C lower than the previous rolling pass.
C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
H01F 1/147 - Alloys characterised by their composition
H01F 1/16 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets
14.
METHOD FOR DETERMINING AN OPTIMIZED SILICON CONTENT IN LIQUID STEEL
A method to calculate an optimized amount of silicon to be added in a liquid steel produced using copper-containing scrap. The invention is also related to a method of hot rolling a steel semi-product resulting from the casting of a liquid steel produced using copper-containing scrap.
A method for hot rolling a steel semi product comprising the estimation of the composition of the liquid steel to be cast, said liquid steel being produced using copper-containing scrap, and the calculation of the melting temperature of the copper phase formed on the semi-product during casting to reheat the semi-product at an optimised reheating temperature.
A method for hot rolling a steel semi-product, comprising the steps of producing a liquid steel, said production step comprising the melting of steel scrap comprising copper, estimating the amounts of copper %Cuest, tin %Snest, antimony %Sbest, sulphur %Sest, in said produced liquid steel, casting the liquid steel to produce a semi-product, reheating the semi product to a reheating temperature TR and hot rolling the reheated semi-product. The method further comprises the calculation of optimized amounts of tin, antimony, and sulfur.
The instant technology relates in particular to a method for determining beam-to-region assignment data for a powder-bed beam fusion device, the method comprising: - s2) for an ensemble of hatch-lines to be gradually solidified using beam irradiation, partitioning the ensemble of hatch-lines into a plurality of distinct subsets, each gathering some of the hatch-lines and forming a region (R1 – R8) to be processed by one of one or more beams of the device, said partitioning comprising, for at least some of the regions, grouping some of the hatch-lines, each untruncated, the hatch-lines being located one aside the other and being distributed one after the other successively along a given direction perpendicular to the hatch-lines, - s3) Determining the beam-to-region assignment data.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
The invention deals with a cold-rolled and heat-treated steel sheet, made of a steel having a composition comprising, by weight percent: C : 0.03 - 0.25 % Mn : 3.0 - 8.0 % Si : 0.1 - 2.0 % Al: 0.03 - 3.0% Mo : 0.01 - 0.5 % S < 0.010 % P < 0.020 % N < 0.02 % and comprising optionally one or more of the following elements, in weight percentage: B< 0.004 % Ti < 0.04 % Nb < 0.1 % Cr < 0.80 % the remainder of the composition being iron and unavoidable impurities resulting from the smelting, said steel sheet having a microstructure comprising, in surface fraction, - from 5% to 50% of retained austenite, - the rest being ferrite.
The instant technology relates in particular to a method for determining beam-to-region assignment data for a powder-bed beam fusion device, the method comprising: - s2) for an ensemble of hatch-lines to be gradually solidified using beam irradiation, partitioning the ensemble of hatch-lines into a plurality of distinct subsets, each gathering some of the hatch-lines and forming a region (R1 – R8) to be processed by one of one or more beams of the device, said partitioning comprising, for at least some of the regions, grouping some of the hatch-lines, each untruncated, the hatch-lines being located one aside the other and being distributed one after the other successively along a given direction perpendicular to the hatch-lines, - s3) Determining the beam-to-region assignment data.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
22424.22O + 2 HCl, so as to obtain a reaction mixture comprising hydrochloric acid and hydrated forms of iron sulphate, wherein said reactants comprises from 5 to 40 weight percent of sulphuric acid and ii. distilling said reaction mixture to obtain a distillate and a concentrate, iii. mixing said concentrate with water such that the weight ratio between the concentrate and the water is from 0.1 to 10, to obtain an aqueous solution, iv. setting said aqueous solution to a temperature from -10 to 50°C to obtain a liquid phase and a solid phase, v. separating said liquid phase and said solid phase obtained in step iv.
The invention deals with a cold-rolled and heat-treated steel sheet, made of a steel having a composition comprising, by weight percent: C : 0.03 - 0.25 %, Mn : 3.5 – 7.0 %, Si : 0.1 – 2.0 %, Al: 0.5 – 3.0%, Mo : 0.01 – 0.5 %, S ≤ 0.010 %, P ≤ 0.020 %, N ≤ 0.02 %, and comprising optionally one or more of the following elements, in weight percentage: B≤ 0.004 %, Ti ≤ 0.04 %, Nb ≤ 0.1 %, Cr ≤ 0.80 %, the remainder of the composition being iron and unavoidable impurities resulting from the smelting, said steel sheet having a microstructure comprising, in surface fraction, - from 5% to 50% of retained austenite, - the rest being ferrite.
A method for hot rolling a steel semi product comprising the estimation of the composition of the liquid steel to be cast, said liquid steel being produced using copper-containing scrap, and the calculation of the melting temperature of the copper phase formed on the semi-product during casting to reheat the semi-product at an optimised reheating temperature.
A method for hot rolling a steel semi-product, comprising the steps of producing a liquid steel, said production step comprising the melting of steel scrap comprising copper, estimating the amount of copper %Cuest, and optionally of tin %Snest, antimony %Sbest, sulphur %Sest, in said produced liquid steel, casting the liquid steel to produce a semi-product, reheating the semi product to a reheating temperature TR and hot rolling the reheated semi-product. The method further comprises the calculation of optimized amounts of tin, antimony, and sulfur.
06 - Common metals and ores; objects made of metal
Goods & Services
Common metals and their alloys; iron, unprocessed or semi-processed steel products; stainless steel, carbon steel, tinplate, hardened steel, in the form of billets, blooms, slabs, sheets, strips, foils, ribbons, blanks, cylinders, coils, strips, profiles, bars, beams, piles, balls, rods, logs, ingots; tubes, pipes, sections, plates, rings, springs, piles, girders, foils, hoops, joists and other shapes; non-electric metallic cables and wires, including metal welding wires and barbed wires; clad steel, coated steel as notably galvanized steel, chromium-plated steel, aluminium-coated steel; coated steel sheets or plates; prelacquered steel; pre-painted steel; metal building materials; metal tanks and metal containers; metal parts for vehicles, not included in other classes; metal materials for railway tracks; metal street furniture.
25.
STEEL SHEET FOR TOP COVER OF BATTERY PACK AND ITS MANUFACTURING METHOD
A top cover of battery pack including a metallic coated steel sheet wherein the metallic coating is based on aluminum and includes optionally silicon and unavoidable impurities.
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
26.
STEEL SHEET FOR TOP COVER OF BATTERY PACK AND ITS MANUFACTURING METHOD
A top cover of a battery pack including a metallic coated steel sheet wherein the metallic coating is topped by an organic coating and wherein the organic coating has two layers, the first layer of the organic coating in contact with the metallic coating having a thickness of 2 to 25 μm, and the second layer of the organic coating being based on polyester or polyurethane.
06 - Common metals and ores; objects made of metal
Goods & Services
Common metals and their alloys; building materials made of
metal; hardware of metal; storage containers of metal;
containers of metal for transport; pipes of metal, including
in alloy steel and titanium; pipes of steel; welded metal;
metal lines; precision steel tubes; precision welded steel
tubes.
28.
A HOT ROLLED STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF
A hot rolled steel sheet having a composition comprising of the following elements 0.03% ≤ Carbon ≤ 0.070 %, 0.4 % ≤ Manganese ≤ 0.9%, 0.01% ≤ Aluminum ≤ 0.08 %, 0.01% ≤ Niobium ≤ 0.08%, 0.05 % ≤ Titanium ≤ 0.15%, 0.0005% ≤ Calcium ≤ 0.005%, 0% ≤ Phosphorus ≤ 0.03 %, 0 % ≤ Sulfur ≤ 0.015 %, 0 % ≤ Nitrogen ≤ 0.02%, 0.001% ≤ Silicon ≤ 0.09%,0% ≤ Chromium ≤ 0.2%, 0.% ≤ Copper ≤ 0.25%, 0% ≤ Nickel ≤ 0.2%, 0% ≤ Molybdenum ≤ 0.2%, 0% ≤ Vanadium ≤ 0.1%, 0 % ≤ Boron ≤ 0.003%, 0 % ≤ Magnesium ≤ 0.010%, 0% ≤ Cerium≤ 0.1%,0% ≤ Zirconium ≤ 0.010%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet comprising in area fraction, 35% to 70% Bainite, 30% to 60% Ferrite, Pearlite from 1% to 5% wherein the said hot rolled steel sheet has an inclusion density of 110 inclusions per square micro-meter and the inclusions having a size of 2 microns or more being 22% or less of the total number of inclusions.
A hot rolled steel sheet having a composition comprising of the following elements 0.03% ≤ Carbon ≤ 0.070 %, 0.4 % ≤ Manganese ≤ 0.9%, 0.01% ≤ Aluminum ≤ 0.08 %, 0.01% ≤ Niobium ≤ 0.08%, 0.05 % ≤ Titanium ≤ 0.15%, 0.0005% ≤ Calcium ≤ 0.005%, 0% ≤ Phosphorus ≤ 0.03 %, 0 % ≤ Sulfur ≤ 0.015 %, 0 % ≤ Nitrogen ≤ 0.02%, 0.001% ≤ Silicon ≤ 0.09%,0% ≤ Chromium ≤ 0.2%, 0.% ≤ Copper ≤ 0.25%, 0% ≤ Nickel ≤ 0.2%, 0% ≤ Molybdenum ≤ 0.2%, 0% ≤ Vanadium ≤ 0.1%, 0 % ≤ Boron ≤ 0.003%, 0 % ≤ Magnesium ≤ 0.010%, 0% ≤ Cerium≤ 0.1%,0% ≤ Zirconium ≤ 0.010%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet comprising in area fraction, 35% to 70% Bainite, 30% to 60% Ferrite, Pearlite from 1% to 5% wherein the said hot rolled steel sheet has an inclusion density of 110 inclusions per square micro-meter and the inclusions having a size of 2 microns or more being 22% or less of the total number of inclusions.
A hot rolled steel sheet having a composition comprising of the following elements, 0.03% ≤ Carbon ≤ 0.07 %,0.8 % ≤ Manganese ≤ 1.3%, 0.01% ≤ Aluminum ≤ 0.07 %, 0.01% ≤ Niobium ≤ 0.07%, 0.05 % ≤ Titanium ≤ 0.15%, 0.0005% ≤ Calcium ≤ 0.005%, 0% ≤ Phosphorus ≤ 0.03 %, 0 % ≤ Sulfur ≤ 0.015 %, 0 % ≤ Nitrogen ≤ 0.02%, 0.001% ≤ Silicon ≤ 0.09%, 0% ≤ Chromium ≤ 0.2%, 0.03% ≤ Copper ≤ 0.25%, 0% ≤ Nickel ≤ 0.2%, 0% ≤ Molybdenum ≤ 0.2%, 0% ≤ Vanadium ≤ 0.1%, 0 % ≤ Boron ≤ 0.003%, 0 % ≤ Magnesium ≤ 0.010%, 0% ≤ Cerium≤ 0.1%, 0% ≤ Zirconium ≤ 0.010%,,the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet comprising in area fraction, 40% to 75% Bainite, 25% to 60% Ferrite, Pearlite from 0% to 2% and Martensite-Residual Islands from 0% to 2% wherein the said hot rolled steel sheet has an inclusion density of 200 inclusions per square micro-meter, the inclusions having a size of 2 microns or more being 15% or less of the total number of inclusions.
A hot rolled steel sheet having a composition comprising of the following elements, 0.03% ≤ Carbon ≤ 0.07 %,0.8 % ≤ Manganese ≤ 1.3%, 0.01% ≤ Aluminum ≤ 0.07 %, 0.01% ≤ Niobium ≤ 0.07%, 0.05 % ≤ Titanium ≤ 0.15%, 0.0005% ≤ Calcium ≤ 0.005%, 0% ≤ Phosphorus ≤ 0.03 %, 0 % ≤ Sulfur ≤ 0.015 %, 0 % ≤ Nitrogen ≤ 0.02%, 0.001% ≤ Silicon ≤ 0.09%, 0% ≤ Chromium ≤ 0.2%, 0.03% ≤ Copper ≤ 0.25%, 0% ≤ Nickel ≤ 0.2%, 0% ≤ Molybdenum ≤ 0.2%, 0% ≤ Vanadium ≤ 0.1%, 0 % ≤ Boron ≤ 0.003%, 0 % ≤ Magnesium ≤ 0.010%, 0% ≤ Cerium≤ 0.1%, 0% ≤ Zirconium ≤ 0.010%,,the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet comprising in area fraction, 40% to 75% Bainite, 25% to 60% Ferrite, Pearlite from 0% to 2% and Martensite-Residual Islands from 0% to 2% wherein the said hot rolled steel sheet has an inclusion density of 200 inclusions per square micro-meter, the inclusions having a size of 2 microns or more being 15% or less of the total number of inclusions.
A hot rolled steel sheet having a composition comprising of the following elements,0.02 % ≤ Carbon ≤ 0.06 %, 1.1 % ≤ Manganese ≤ 1.60%,0.01% ≤ Aluminum ≤ 0.08 %, 0.01% ≤ Niobium ≤ 0.07%, 0.05 % ≤ Titanium ≤ 0.15%, 0.0005% ≤ Calcium ≤ 0.005%, 0% ≤ Phosphorus ≤ 0.03 %, 0 % ≤ Sulfur ≤ 0.015 %, 0 % ≤ Nitrogen ≤ 0.02%,and can contain one or more of the following optional elements 0.001% ≤ Silicon ≤ 0.09%, 0% ≤ Chromium ≤ 0.2%, 0 ≤ Copper ≤ 0.25%, 0% ≤ Nickel ≤ 0.2%,0% ≤ Vanadium ≤ 0.1%, 0 % ≤ Boron ≤ 0.003%, 0 % ≤ Magnesium ≤ 0.010%, 0% ≤ Cerium≤ 0.1%, 0% ≤ Zirconium ≤ 0.010%,the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet comprising in area fraction, 35% to 75% Bainite, 25% to 65% ferrite, from 0% to 2% Pearlite and MartensiteResidual Islands from 0% to 2% wherein said hot rolled steel sheet has an inclusion density of 200 inclusions per square micrometer, the inclusions having size of 2 microns or more being 25% or less of the total number of inclusions.
A hot rolled steel sheet having a composition comprising of the following elements,0.02 % ≤ Carbon ≤ 0.06 %, 1.1 % ≤ Manganese ≤ 1.60%,0.01% ≤ Aluminum ≤ 0.08 %, 0.01% ≤ Niobium ≤ 0.07%, 0.05 % ≤ Titanium ≤ 0.15%, 0.0005% ≤ Calcium ≤ 0.005%, 0% ≤ Phosphorus ≤ 0.03 %, 0 % ≤ Sulfur ≤ 0.015 %, 0 % ≤ Nitrogen ≤ 0.02%,and can contain one or more of the following optional elements 0.001% ≤ Silicon ≤ 0.09%, 0% ≤ Chromium ≤ 0.2%, 0 ≤ Copper ≤ 0.25%, 0% ≤ Nickel ≤ 0.2%,0% ≤ Vanadium ≤ 0.1%, 0 % ≤ Boron ≤ 0.003%, 0 % ≤ Magnesium ≤ 0.010%, 0% ≤ Cerium≤ 0.1%, 0% ≤ Zirconium ≤ 0.010%,the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet comprising in area fraction, 35% to 75% Bainite, 25% to 65% ferrite, from 0% to 2% Pearlite and Martensite-Residual Islands from 0% to 2% wherein said hot rolled steel sheet has an inclusion density of 200 inclusions per square micro-meter, the inclusions having size of 2 microns or more being 25% or less of the total number of inclusions.
Front member assembly (1) for an automotive vehicle including an upper shell (11) and a lower shell (12), wherein the upper and lower shells (11, 12) each include a right, left and transverse portion and wherein the upper and lower shells are assembled together by attaching them at least along upper and lower contours (1121, 1122, 1221, 1222, 1131, 1132, 1231, 1232) of the right and left portions.
An electrolysis apparatus for the production of iron through reduction of iron ore by an electrolysis reaction, the electrolysis reaction emitting a gas, the apparatus including a casing. The casing including a gas permeable anode plate being made of a cellular material, a cathode plate, both facing each other and being separated by an electrolyte chamber.
A method for estimating the thickness of a varnish coating, having a thickness from 0.5 to 5 μm, of a moving steel substrate including a varnish coating including the steps of i. lighting said moving coated steel substrate with an illumination source forming an incident angle from 51° to 61° with respect to the normal of said steel substrate, ii. p-polarizing the light after reflection on said moving steel substrate and measuring the intensities of the light after reflection on said moving steel substrate, iii. assessing an absorbance spectrum of said varnish coating in said wavelength range iv. assessing an area under the curve of said absorbance spectrum AMEAS v. estimating the varnish thickness using said area under the curve and a function linking a varnish thickness and an area under the curve of an absorbance spectrum of said coating.
A steel sheet containing manganese from 3.0 to 6.0% in weight which has both a good coatability by liquid zinc and a good LME resistance. The present invention also aims to make available an easy to implement method to obtain the steel sheet and an assembly which does not have LME issues after spot-welding.
B41J 3/54 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
B41J 2/515 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by the process of building-up characters applicable to two or more kinds of printing or marking processes from an assembly of identical printing elements line printer type
B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
B41J 25/308 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms
39.
METHOD FOR DETERMINING A PROCESSING SEQUENCE FOR PROCESSING AN ENSEMBLE OF SEMI-PRODUCTS
The present invention relates in particular to determining a sequence for processing an ensemble of semi-products, one after the other, the semi-product that is the end semi-product in said sequence being fixed. A graph (Gr) represents the ensemble of semi-products, each semi-product being represented by a node. For determining the processing sequence, candidate paths are determined on this graph by gradually adding nodes to the path under construction. A test of forecasted feasibility is executed during the path construction, based on the portion (G) of the graph (Gr) that remains to explore. The test is positive when said portion (G) of the graph, supplemented with an auxiliary arc (aa), is a strongly connected graph, the auxiliary arc being a directed arc joining an end node (e) of the graph (Gr), to the candidate node (cn) considered.
B41J 3/54 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
B41J 2/515 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by the process of building-up characters applicable to two or more kinds of printing or marking processes from an assembly of identical printing elements line printer type
B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
B41J 25/308 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms
41.
Method for butt-welding a steel part and associated steel part
Method for butt-welding two steel sheets comprising the steps of providing two steel sheets having a composition such that the gamma factor of the unamended targeted weld seam composition is strictly higher than 0.39, butt to butt laser welding them with additional material incorporated in the weld such that the gamma factor of the amended targeted weld seam composition is equal to or lower than 0.39, wherein Gamma=C+Si/30+Mn/20+4.8*P+4*S-Al/20,
Method for butt-welding two steel sheets including the steps of providing two steel sheets (1, 2), on all the faces having a zinc based metallic coating thickness Znth above 3.5 microns and a steel sheet substrate (12) with a Carbon content above 0.15% or a Silicon content above 0.5% or both: removing at least part of-the metallic coating to form an ablation area before welding (6) having a Zinc-based metallic coating thickness after ablation Znab which is equal to or lower than 3.5 microns and in such a way that the width of the ablation area after welding (8) is equal to or greater than 0.5 mm, butt welding the steel sheets (1, 2) using at least a laser source.
A method for evaluating the hydrogen content in a steel sheet while being submitted to an annealing process, including the following steps: estimating the microstructure of the steel sheet according to the temperature curve, computing the solubility of the hydrogen CH, computing the volume concentration of trapped hydrogen in dislocations CT and the volume concentration of hydrogen in interstitial sites of the crystal lattice CL, calculating the hydrogen content Ctotal=CL+CT at each time step of the annealing process and outputting the hydrogen content Ctotal at each time step to a user.
The present invention relates to a spot welded joint where a steel sheet is made by a method with steps: A. the coating of the steel sheet with a first coating consisting of nickel and having a thickness between 600 nm and 1400nm, the steel sheet having the following composition in weight: 0.10
A Steel manufacturing method including the step of producing direct reduced iron (12) and a reduction top gas (13) in a direct reduction plant (1) using a reducing gas (11), the reduction top (13) being at least partly (13A) recycled as reducing gas (11), producing hot metal and a blast furnace top gas (21) in a blast furnace (2), wherein from 200 Nm3 to 700 Nm3 of hydrogen (20) per ton of hot metal to be produced are injected and the blast furnace top gas (21A) being at least partly sent to a biochemical plant (4) to produce hydrocarbons and producing molten metal and electric furnace gas in an electric furnace (3) using at least a part of the produced direct reduced iron (12).
A steel manufacturing method includes the steps of producing direct reduced iron in a direct reduction plant (1) using a syngas (70) resulting from the gasification of solid waste fuels, producing hot metal (22) and a blast furnace top gas (21) in a blast furnace (2) using a hot blast (20), the blast furnace top gas (21) being at least partly (21A) used into the direct reduction plant (1) and producing molten metal and electric furnace gas in an electric furnace (3) using the produced direct reduced iron (12). Associated network of plants.
A method for manufacturing a heat-treated stool sheet, submitted to an annealing process following a temperature curve T as a function of time t in a furnace having atmosphere including hydrogen, in which the hydrogen content targeted in the steel sheet at the end of a step of the annealing process is defined.
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:
with
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:
with
40
≤
E
pc
≤
80
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
)
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:
with
40
≤
E
pc
≤
80
E
pc
=
(
33.3
-
e
IDL
0.9
+
e
IDL
-
e
coating
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2
-
148
(
e
IDL
-
e
coating
)
-
(
33.3
-
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IDL
-
E
coating
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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:
with
40
≤
E
pc
≤
80
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
)
)
-
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*
e
-
8.62
-
3.34
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arctan
(
5.49
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)
An apparatus (1) for the production of iron through reduction of iron ore by an electrolysis reaction, wherein the supply to supply iron ore includes a twin-screw supplier (32) provided to discharge iron ore powder (46) into an electrolyte feed pipe (31) upstream of the electrolytic chamber (6).
The invention relates to a sonic vapour jet coater, for depositing coatings formed of metal or metal alloy on a metallic running substrate, comprising : - a repartition chamber, - a vapour outlet duct, connected to said repartition chamber and able to spray a metal alloy vapour along a main ejection direction, formed by - an adjustable jet width system comprising a separator wall, a rod, and a displacement system wherein - said separator wall being in said duct, configured to closely fit said top wall and bottom wall, and extending essentially from the entry opening to the exit opening, - said rod linking said separator wall to said displacement system, and configured to closely fits said top wall and bottom wall and passing through a lateral wall, - said displacement system being able to displace said rod along the length of the exit opening.
An apparatus (1) for the production of iron metal through reduction of iron ore by an electrolysis reaction, the apparatus including an electrolyte circulation device (30) including a pumping device (22) located at one extremity of the casing (4) and at least a first (31A) check valve located in the electrolyte chamber (6) and a second (31B) check valve located in the gas recovery part (8), the electrolyte circulation device (30) being designed, when actuating by an actuator (28), to aspirate the electrolyte (5) from the electrolyte chamber (6) or to pull the electrolyte (5) back into the gas recovery part (8).
The invention relates to a sonic vapour jet coater, for depositing coatings formed of metal or metal alloy on a metallic running substrate, comprising : - a repartition chamber, - a vapour outlet duct, connected to said repartition chamber and able to spray a metal alloy vapour along a main ejection direction, formed by - an adjustable jet width system comprising a separator wall, a rod, and a displacement system wherein - said separator wall being in said duct, configured to closely fit said top wall and bottom wall, and extending essentially from the entry opening to the exit opening, - said rod linking said separator wall to said displacement system, and configured to closely fits said top wall and bottom wall and passing through a lateral wall, - said displacement system being able to displace said rod along the length of the exit opening.
A cold rolled and heat treated steel sheet including in weight percent: 0.2%≤C≤0.35%; 0.5%≤Mn≤1.5%; 0.1%≤Si≤0.6%; 0%≤Al≤0.1%; 0.01%≤Ti≤0.1%; 0.0001%≤B≤0.010%; 0%≤P≤0.02%; 0%≤S≤0.03%; 0%≤N≤0.09% and can contain optional elements, the microstructure of the steel including, by area percentage, at least 80% of tempered martensite, 3 to 15% Bainite, 1% to 7% Martensite, 0 to 12% of Ferrite and 0 to 2% Residual Austenite.
An apparatus (1) for the production of iron metal through reduction of iron ore by an electrolysis reaction the apparatus including a casing (4) including successively a terminal anode plate (2) at a first end of the casing (4), such anode being connected to a source of electric power, at least one bipolar electrode (11) including successively a cathode plate (3), a metallic plate (12), a gas recovery part (8) and a gas permeable anode plate (2) and a terminal cathode plate (3) at the other end of said casing (4), such cathode being connected to the source of electric power.
A low density hot rolled steel including of 0.12%≤carbon≤0.25%, 3%≤manganese≤10%, 3.5%≤aluminum≤6.5%, 0%≤phosphorus≤0.1%, 0%≤sulfur≤0.03%, 0%≤nitrogen≤0.1%, 0%≤silicon≤2%, 0.01%≤niobium≤0.03%, 0.01%≤titanium≤0.2%, 0%≤molybdenum≤0.5%, 0%≤chromium≤0.6%, 0.01%≤copper≤2.0%, 0.01%≤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 including of ferrite from 60% to 80%, 10% to 35% kappa carbides (Fe,Mn)3AlCx, where x is lower than or equal to 1 and austenite from 0% to 10% wherein the microstructure grains having less than 4 GPa nano-hardness must be more than 45% and microstructure grains having nano-hardness of more than 5 GPa must be less than 10%.
A method for heating a semi-finished steel product, including a pre-heating step, performed in a pre-heating device including a chamber containing solid particles, a heat exchanger, a support able to support the semi-finished steel product, a gas injector, and a heating step, performed in a furnace, wherein, the pre-heating step includes the steps of i. injecting a gas into the first chamber so as to form a first fluidized bed, ii. heating the fluidized bed by the heat exchanger, iii. putting the semi-finished steel product, into the fluidized bed and onto the support such the fluidized bed is able to transfer heat to the semi-finished steel product, iv. taking out the semi-finished steel product when its temperature is from 200° C. to 1000° C., and the heating step includes the step heating the semi-finished product to a temperature from 1100 to 1400° C.
A method for regulating an atmosphere A inside a furnace, wherein a steel strip having a composition and an exposed surface area A1 is heat treated from a time T0 to a time TS1END and a steel strip, having a composition and an exposed surface area is heat treated from a time TS2START to a time TN, including the following steps: a data acquisition step, an optimisation step and an injection of H2O.
Method to produce hot metal in at least one blast furnace (1) including at least two levels of gas injection (3A, 3B) and emitting a blast furnace top gas (10) when working, the method including at least the steps of charging an iron-containing charge (4) and a first carbon-based reductant (5) into the blast furnace, injecting at the first level (3A) a hot blast (11) having a temperature upper or equal to 1000° C., the hot blast including oxygen (6), recovering the blast furnace top gas to extract hydrogen to produce an H2-rich stream (13) including more than 90% v of hydrogen and an H2-lean stream (12 an injecting the H2-rich stream (11) into the blast furnace at the second level of gas injection (3B). Associated network of plants.
A low density hot rolled steel including of 0.12%≤carbon≤0.25%, 3%≤manganese≤10%, 3.5%≤aluminum≤6.5%, 0%≤phosphorus≤0.1%, 0%≤sulfur≤0.03%, 0%≤nitrogen≤0.1%, 0%≤silicon≤2%, 0.01%≤niobium≤0.03%, 0.01%≤titanium≤0.2%, 0%≤molybdenum≤0.5%, 0%≤chromium≤0.6%, 0.01%≤copper≤2.0%, 0.01%≤ 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 including of ferrite from 55% to 80%, 15% to 50% austenite and martensite from 0% to 10% wherein the microstructure grains having less than 4 GPa nano-hardness must be more than 45% and microstructure grains having nano-hardness of more than 5 GPa must be less than 22%.
A method for managing the gloss of an organic coating formed on a moving strip on a coil-coating line, the method including the steps of: 1) Setting a set gloss value Gs, a set gloss range Rs and a proportionality constant K of a predefined linear mathematical relation between the temperature of the wet film before UV curing and the gloss, 2) Collecting the measure of the temperature T of the wet film in at least a width portion of the moving strip upstream of the UV curing device and collecting the measure of the gloss G, 3) Correcting a deviation of the measured gloss G beyond Rs, this step including a sub-step of calculating the corrected temperature Tc to be reached by the wet film in the width portion upstream of the UV curing device according to equation: Tc=T+K(G−Gs).
B05D 3/06 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
B05C 1/08 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller
B05D 3/02 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
B05D 5/06 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
B05D 7/14 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
61.
Method for producing a steel sheet having excellent processability before hot forming
Steel sheet suitable for a multistep hot stamping process and associated manufacturing process, the steel sheet having a composition including, by weight percent: C: 0.13-0.4%, Mn: 0.4-4.2%, Si: 0.1-2.5%, Cr≤2%, Mo≤0.65%, Nb≤0.1%, Al≤3.0%, Ti≤0.1%, B≤0.005%, P≤0.025%, S≤0.01%, N≤0.01%, Ni≤2.0%, Ca≤0.1%, W≤0.30%, V≤0.1%, Cu≤0.2%, wherein Q is less than 20, the factor Q being defined as (the elements are expressed in weight percent): Q=114−68*C−18*Mn+20*Si−56*Cr−61*Ni−37*Al+39*Mo+79*Nb−17691*B, the steel sheet having a microstructure including, in surface fraction, from 60% to 100% of recrystallized ferrite, less than 40% of the sum of martensite, bainite and carbides and less than 5% of non-recrystallized ferrite.
A hot stamping die (2,3) including a die body (11) having a work face (9) which is in contact with a blank during the hot stamping operation, and at least one porous die portion (4) having a corresponding porous work face portion (7), the porous die body portion being in contact with a reservoir (6, 40), the reservoir (6, 40) containing a cooling medium (8), and the porous die body portion including a plurality of ejection channels (5) extending from the reservoir (6, 40) to the porous work face portion, wherein the ejection channels (5) are configured to eject the cooling medium (8) from the reservoir (6, 40) towards the porous work face portion (7) when the pressure on the cooling medium is increased above a threshold ejection pressure, and wherein the die (2,3) does not include any discharge channels to evacuate excess ejected coolant from the dies after hot stamping.
A hot rolled steel having a composition including the following elements, expressed in percentage by weight 15%≤Nickel≤25%, 6%≤Cobalt≤12%, 2%≤Molybdenum≤6%, 0.1%≤Titanium≤1%, 0.0001%≤Carbon≤0.03%, 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%≤Aluminum≤0.1%, 0%≤Niobium≤0.1%, 0%≤Vanadium≤0.3%, 0%≤Copper≤0.5%, 0%≤Chromium≤0.5% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the steel sheet including in area fraction, 20% to 40% Tempered Martensite, at least 60% of Reverted Austenite and inter-metallic compounds of Molybdenum, Titanium and Nickel.
C22C 38/08 - Ferrous alloys, e.g. steel alloys containing nickel
C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
A method for determining a flux of aerial particulates, the method comprising: - s1) controlling a steerable lidar device (2) so that the lidar device (2) scans a control surface (S), by emitting several laser pulses directed along different emission axis and acquiring corresponding back-scattered optical signals; - s2) processing the back-scattered optical signals to determine, along each emission axis, values of a particulate density and of a colinear wind speed at different distances from the lidar device, - s3) computing a particulates flux through the control surface (S) based on said values of the particulate density and of the colinear wind speed.
A method for characterizing an aerial particulates emission from an open-air area (Zo), the method comprising: - s1 ) controlling a steerable lidar device (2) so that the lidar device (2) scans a zone (V) located over said area, by emitting several laser pulses directed along different emission axis and acquiring corresponding back-scattered optical signals; - s2) processing the back-scattered optical signals to determine, along each emission axis, values of a particulate density and of a colinear wind speed at different distances from the lidar device, - s3) determining an aerial particulates emission from said area by computing a particulates flux through a control surface (S) enclosing said area, said particulate flux being computed based on said values of the particulate density and of the colinear wind speed.
Q*/RTQ*Cγγ(fαα , fγγ , fcc c ), based on the bainitic ferrite growth rate and on the cementite growth rate, and updating the Carbon content in the austenite phase based on the values of said phases fractions.
C21D 11/00 - Process control or regulation for heat treatments
G16C 10/00 - Computational theoretical chemistry, i.e. ICT specially adapted for theoretical aspects of quantum chemistry, molecular mechanics, molecular dynamics or the like
G16C 60/00 - Computational materials science, i.e. ICT specially adapted for investigating the physical or chemical properties of materials or phenomena associated with their design, synthesis, processing, characterisation or utilisation
67.
PRODUCTIVE COATING PROCESS FOR A STEEL SHEET, CORRESPONDING EQUIPMENT, A METALLIC COATED HOT ROLLED STEEL SHEET
A method for manufacturing a coated steel sheet comprising the following steps: a. Providing a steel sheet (10), b. Descaling said steel sheet by acid pickling, c. Feeding said descaled steel sheet into a pressurized chamber (3) above the atmospheric pressure, said pressurized chamber comprising an inlet (2), and being connected via at least one sealing lock (20) to at least one vacuum deposition chamber (4), d. Depositing a metallic coating layer by vapor deposition.
C23C 28/02 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of metallic material
C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
68.
DOUBLE WALL LANCE FOR INJECTING REDUCING AGENT AND OXYGEN THROUGH A TUYERE IN A BLAST FURNACE
CNRS CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
INSA INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE ROUEN (France)
UNIVERSITE DE ROUEN-NORMANDIE (France)
Inventor
Domingo, Pascale
Vervisch, Luc
Barnaud, Camille
Dodier, Eric
Ghazal, Ghassan
Nguyen, Phuc Danh
Sert, Dominique
Abstract
The invention relates to a double wall lance for injecting reducing agent and oxygen through a tuyere comprising: a. an inner tube (5) for injecting reducing agent (2), b. an outer tube (6) for injecting oxygen (3) which surrounds the inner tube (5), c. an end part (7, 7a,7b,7c) closing the lance (1) and having: - a front face (11a,11b,11c) having a diameter D and comprising: i. a reducing agent outlet hole (8a,8b,8c), ii. a front face periphery (9a,9b,9c) comprising a plurality of main oxygen outlet holes (10a,10b,10c), - a cap (12a,12b,12c) surrounding the end part (7,7a,7b,7c) and extending over a length L starting from the front face (11a,11b,11c) of the end part (7, 7a,7b,7c) to a free end edge (14a,14b,14c), wherein the length L of the cap (12a,12b,12c) represents more than 21,3% of the diameter D of the front face (11a,11b,11c). The invention also relates to a method to inject hot reducing gas into a blast furnace through a tuyere (4) using such double wall lance.
Steel sheet having a chemical composition comprising 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 %, Said steel sheet comprising 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, said bulk comprising an inclusion population wherein the sum of clustering indexes of MnS and TiN / Ti(C,N) inclusions is less than or equal to 300μm/mm2. This allows to manufacture hot pressed parts having a tensile strength equal to or greater than 1300MPa and a bending anisotropy equal to or lower than 7°.
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
C23C 2/04 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shapeApparatus therefor characterised by the coating material
70.
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°.
(−Q*/RT), Q*(−Q*/RT), Q* being an activation energy for an austenite to bainitic ferrite transformation, and proportional to a moderation coefficient which approaches zero when a free enthalpy of a bainitic ferrite phase approaches a free enthalpy of an austenite phase that depends on a Carbon content (Cγfα,,fγ,,, fcfc), based on the bainitic ferrite growth rate and on the cementite growth rate, and updating the Carbon content in the austenite phase based on the values of said phases fractions.
C21D 11/00 - Process control or regulation for heat treatments
G16C 10/00 - Computational theoretical chemistry, i.e. ICT specially adapted for theoretical aspects of quantum chemistry, molecular mechanics, molecular dynamics or the like
G16C 60/00 - Computational materials science, i.e. ICT specially adapted for investigating the physical or chemical properties of materials or phenomena associated with their design, synthesis, processing, characterisation or utilisation
72.
STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCELLENT BENDING AND METHOD OF MANUFACTURING THE SAME
Steel sheet having a chemical composition comprising 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 %, Said steel sheet comprising 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, such bulk being 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 said skin being smaller than 240 particles / mm2and the clustering index of MnS inclusions in said skin being lower than 110 μm/mm2. This allows to manufacture hot pressed parts having a tensile strength equal to or greater than 1300MPa and a bending angle normalized to 1.5mm and measured in the transverse direction strictly greater than 48°.
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
C23C 2/04 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shapeApparatus therefor characterised by the coating material
C21C 7/00 - Treating molten ferrous alloys, e.g. steel, not covered by groups
C21C 7/04 - Removing impurities by adding a treating agent
73.
PRODUCTIVE COATING PROCESS FOR A STEEL SHEET, CORRESPONDING EQUIPMENT, A METALLIC COATED HOT ROLLED STEEL SHEET
A method for manufacturing a coated steel sheet comprising the following steps: a. Providing a steel sheet (10), b. Descaling said steel sheet by acid pickling, c. Feeding said descaled steel sheet into a pressurized chamber (3) above the atmospheric pressure, said pressurized chamber comprising an inlet (2), and being connected via at least one sealing lock (20) to at least one vacuum deposition chamber (4), d. Depositing a metallic coating layer by vapor deposition at a sonic speed, wherein a gas is blown into the pressurized chamber (3) to keep it at a pressure above atmospheric pressure, said gas being released through the inlet (2).
C23C 14/22 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
C23C 2/02 - Pretreatment of the material to be coated, e.g. for coating on selected surface areas
C23C 2/06 - Zinc or cadmium or alloys based thereon
C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
C23C 8/02 - Pretreatment of the material to be coated
C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
06 - Common metals and ores; objects made of metal
12 - Land, air and water vehicles; parts of land vehicles
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Common metals and their alloys; unwrought or semi-wrought
steel; steel; carbon steel; stainless steel in particular
coated or tempered steel; galvanized steel;
electrogalvanized steel; all products in the above-mentioned
materials not included in other classes in the form of
plates, sheets, blanks, coils, strips, profiled strips. Vehicles; apparatus for locomotion by land; all metal parts
and components of the aforesaid products not included in
other classes; vehicle parts of metal included in this
class; bodies and body parts. Assembly of materials; soldering; welding services.
75.
HOT ROLLED AND STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF
A hot rolled steel sheet having a composition including the following elements 0.38%≤Carbon≤0.5%, 1%≤Manganese≤2%, 0.1%≤Silicon≤0.7%, 0 01%≤Aluminum≤0.1%, 0.3%≤Chromium≤1%, 0.002%≤Boron≤0.05%, 0.002%≤Phosphorus≤0.02%, 0%≤Sulfur≤0.005%, 0%≤Nitrogen≤0.01%, 0%≤Molybdenum≤0.5%, 0%≤Vanadium≤0.5%, 0%≤Niobium≤0.05%, 0.001%≤Titanium≤0.1%, 0%≤Nickel≤1%, 0%≤Copper≤1%, 0%≤Tin≤0.1%, 0%≤Lead≤0.1%, 0%≤Antimony≤0.1%, 0.0001%≤Calcium≤0.01%, 0%≤Magnesium≤0.0010%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the steel sheet including in area fraction, at least 94% Martensite, 0% to 5% Residual Austenite and carbides of Chromium, Niobium, Vanadium and Iron from 0% to 5%.
A hot rolled steel sheet having a composition including, 0.02%≤Carbon≤0.2%, 3%≤Manganese≤9%, 0.2%≤Silicon≤1.2%, 0.9%≤Aluminum≤2.5%, 0%≤Phosphorus≤0.03%, 0%≤Sulfur≤0.03%, 0%≤Nitrogen≤0.025%, 0%≤Molybdenum≤0.6%, 0%≤Titanium≤0.1%, 0.0001%≤Boron≤0.01%, 0%≤Chromium≤0.5%, 0%≤Niobium≤0.1%, 0%≤Vanadium≤0.2%, 0%≤Nickel≤1%, 0%≤Copper≤1%, 0%≤Calcium≤0.005%, 0%≤Magnesium≤0.0010% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the steel sheet including in area fraction, at least 60% of tempered martensite, 15% to 40% residual austenite, 0% to 10% polygonal ferrite, 0% to 5% of bainite, 0 to 15% of fresh martensite and 0% to 5% of carbides of Niobium, Titanium, Vanadium or Iron.
06 - Common metals and ores; objects made of metal
Goods & Services
Non-electric cables and wires of common metal; Barbed wire; Steel wire; non-electric cables of common metal; trellis of metal; Wire mesh; Meshes of common metal.
A coating apparatus for the continuous manufacturing of steel strips coated with a varnish for electrical applications including a tank, a coating roll and an applicator roll wherein: the tank is able to contain a varnish solution and is configured such that the coating roll dips into the varnish solution, the applicator roll 4 is configured to be in contact with the coating roll 3 and the steel strip S, is configured to homogeneously coat the steel strip in the width of the steel strip and the surface of the applicator roll has a shore A hardness from 40 to 60.
B05C 1/08 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller
80.
METHOD FOR MANUFACTURING IRON METAL BY ELECTROLYSIS
A method for manufacturing iron metal in an apparatus through reduction of iron ore by an electrolysis reaction, the electrolysis reaction generating a gas, the apparatus including at least one casing including a gas permeable anode plate, a cathode plate, both facing each other and being separated by an electrolyte chamber, the cathode and the anode being connected to an electric power supply, the casing being provided with a circulator for circulating an electrolyte within the chamber and with a inlet to supply iron ore to the chamber, the pressure P of the electrolyte within the casing being maintained at a value of at least Plimit and the voltage V applied between the cathode and said anode being maintained at a value of at least Vlimit, the voltage V being always kept at a value strictly below the reduction curve of the electrolyte for the pressure P.
A method for manufacturing a heat spreader including the steps of i. depositing an adhesive on a major surface of at least one graphite layer, to obtain at least one graphite layer coated by an adhesive layer, wherein ii. positioning the at least one graphite layer coated by an adhesive layer on top of each other so as to form a first stack of layers alternating graphite layer and adhesive layer iii. positioning a graphite layer having a thickness from 10 to 200 μm, on the first stack of layers so as to form a second stack of layers, having a graphite layer as top and bottom layers iv. compressing the second stack of layer with a pressure from 7 to 20 MPa to form a graphite-based laminate, v. heating the graphite-based laminate such that the solvent of the adhesive is removed.
C09K 5/14 - Solid materials, e.g. powdery or granular
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
B32B 9/04 - Layered products essentially comprising a particular substance not covered by groups comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance
C04B 37/00 - Joining burned ceramic articles with other burned ceramic articles or other articles by heating
H01L 23/373 - Cooling facilitated by selection of materials for the device
82.
High strength high slenderness part having excellent energy absorption
A high strength, high slenderness structural part having excellent energy absorption properties in the case of an impact is provided. In particular, a structural part for use in an automotive vehicle is provided. The structural part has an ultimate tensile strength higher than 1000 MPa, a yield strength to ultimate tensile strength ratio higher than 0.85, a bending angle normalized to 1.5 mm thickness higher than 55° and a slenderness ratio higher than 10.
A press hardened steel part having a composition including, by weight percent: C 0.2-0.34%, Mn 0.50-1.24%, Si 0.5-2%, P≤0.020%, S≤0.010%, N≤0.010%, and including optionally one or more of the following elements: Al: ≤0.2%, Cr≤0.8%, Nb≤0.06%, Ti≤0.06%, B≤0.005%, Mo≤0.35% the remainder of the composition being iron and unavoidable impurities resulting from the smelting. The press hardened steel part has a microstructure including, in surface fraction, 95% or more of tempered martensite and 5% or less of bainite, austenite or ferrite.
A calibrating bar, for calibrating a multi-roll leveller for metal strips, the calibrating including a first groove on a first face wherein a first optical fibre is embedded by an adhesive, a second groove on a second face, being opposite to the first face, wherein a second optical fibre is embedded by means of an adhesive, the first optical fibre and the second optical fibre including a fibre Bragg grating and being essentially parallel, the first optical fibre and the second optical fibre being located at the same distance from the neutral plane N, the first embedded optical fibre and the second embedded optical fibre being configured such that they can be connected to an optical coupler and such that it has a sufficient length to extend over all the rolls of said multi-roll leveller.
G01B 11/16 - Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
85.
VACUUM DEPOSITION FACILITY AND METHOD FOR COATING A SUBSTRATE
A vacuum deposition facility for continuously depositing, on a running substrate, coatings formed from at least one metal inside a Vacuum deposition facility including a vacuum chamber, a coated substrate coated with at least one metal on both sides of the substrate and a coated metallic substrate.
A coated substrate obtainable by a method for continuously depositing, on a running substrate, coatings formed from at least one metal inside a vacuum deposition facility including a vacuum chamber. A vacuum deposition facility for producing such coated substrates.
A cold rolled and heat treated steel sheet having a composition including of the following elements, 0.05%≤Carbon≤0.12%, 1.0%≤Manganese≤2%, 0.01%≤Silicon≤0.5%, 0.01%≤Aluminum≤0.1%, 0.01%≤Niobium≤0.1%, 0%≤Phosphorus≤0.09%, 0%≤Sulfur≤0.09%, 0%≤Nitrogen≤0.09%, 0.1%≤Chromium≤0.5%, 0%≤Nickel≤3%, 0%≤Titanium≤0.1%, 0%≤Calcium≤0.005%, 0%≤Copper≤2%, 0%≤Molybdenum≤0.5%, 0%≤Vanadium≤0.1%, 0%≤Boron≤0.003%, 0%≤Cerium≤0.1%, 0%≤Magnesium≤0.010%, 0%≤Zirconium≤0.010% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the steel sheet including in area fraction, 50 to 90% Recrystallized ferrite, 10 to 50% non-recrystallized ferrite, 0% to 15% Cementite and 0.5% to 2% Carbides of Niobium, wherein the cumulated amount of Recrystallized ferrite and Non-recrystallized ferrite is at least 85%.
Stamping method to form a metallic part (1) and associated metallic part, wherein the geometry of said metallic part is such that some areas need to deform in antagonistic directions during stamping. The stamping method comprises the step of providing a flexible metallic blank (10) comprising at least two sub-blanks (101, 102) corresponding to sub-parts (11, 12) of the metallic part, said flexible blanks further comprising an overlapping area (100) in which the blanks are overlapped onto one another, said overlapping area (100) corresponding to the critical transition area 11T12 between the two sub-parts, said overlapping area comprising a pre-assembly area (1002) and a sliding area (1001). The punch used for the stamping operation comprises a gap in between the area of the punch corresponding to the first and second sub-parts (11, 12).
Stamping method to form a metallic part (1) and associated metallic part, wherein the geometry of said metallic part is such that some areas need to deform in antagonistic directions during stamping. The stamping method comprises the step of providing a blank stack-up (10) comprising at least two sub-blanks (101, 102) corresponding to sub-parts (11, 12) of the metallic part, said blank stack-up further comprising an overlapping area (100) in which the blanks are overlapped onto one another, said overlapping area (100) corresponding to the critical transition area 11T12 between the two sub-parts.
Stamping method to form a metallic part (1) and associated metallic part, wherein the geometry of said metallic part is such that some areas need to deform in antagonistic directions during stamping. The stamping method comprises the step of providing a flexible metallic blank (10) comprising at least two sub-blanks (101, 102) corresponding to sub-parts (11, 12) of the metallic part, said flexible blanks further comprising an overlapping area (100) in which the blanks are overlapped onto one another, said overlapping area (100) corresponding to the critical transition area 11T12 between the two sub-parts, said overlapping area comprising a fixed pre-assembly area (1002) and a sliding area (1001). The punch used for the stamping operation comprises a gap in between the area of the punch corresponding to the first and second sub-parts (11, 12).
Stamping method to form a metallic part (1) and associated metallic part, wherein the geometry of said metallic part is such that some areas need to deform in antagonistic directions during stamping. The stamping method comprises the step of providing a flexible metallic blank (10) comprising at least two sub-blanks (101, 102) corresponding to sub-parts (11, 12) of the metallic part, said flexible blanks further comprising an overlapping area (100) in which the blanks are overlapped onto one another, said overlapping area (100) corresponding to the critical transition area 11T12 between the two sub-parts, said overlapping area comprising a pre-assembly area (1002) and a sliding area (1001). The punch used for the stamping operation comprises a gap in between the area of the punch corresponding to the first and second sub-parts (11, 12).
Stamping method to form a metallic part (1) and associated metallic part, wherein the geometry of said metallic part is such that some areas need to deform in antagonistic directions during stamping. The stamping method comprises the step of providing a blank stack-up (10) comprising at least two sub-blanks (101, 102) corresponding to sub-parts (11, 12) of the metallic part, said blank stack-up further comprising an overlapping area (100) in which the blanks are overlapped onto one another, said overlapping area (100) corresponding to the critical transition area 11T12 between the two sub-parts.
Stamping method to form a metallic part (1) and associated metallic part, wherein the geometry of said metallic part is such that some areas need to deform in antagonistic directions during stamping. The stamping method comprises the step of providing a flexible metallic blank (10) comprising at least two sub-blanks (101, 102) corresponding to sub-parts (11, 12) of the metallic part, said flexible blanks further comprising an overlapping area (100) in which the blanks are overlapped onto one another, said overlapping area (100) corresponding to the critical transition area 11T12 between the two sub-parts, said overlapping area comprising a fixed pre-assembly area (1002) and a sliding area (1001). The punch used for the stamping operation comprises a gap in between the area of the punch corresponding to the first and second sub-parts (11, 12).
06 - Common metals and ores; objects made of metal
Goods & Services
Common metals and their alloys; iron, unprocessed or semi-processed steel products; stainless steel, carbon steel, tinplate, hardened steel, in the form of billets, blooms, slabs, sheets, strips, foils, ribbons, blanks, cylinders, coils, strips, profiles, bars, beams, piles, balls, rods, logs, ingots; tubes, pipes, sections, plates, rings, springs, piles, girders, foils, hoops, joists and other shapes; non-electric metallic cables and wires, including metal welding wires and barbed wires; clad steel, coated steel as notably galvanized steel, chromium-plated steel, aluminium-coated steel; coated steel sheets or plates; prelacquered steel; pre-painted steel; metal building materials; metal tanks and metal containers; metal parts for vehicles, not included in other classes; metal materials for railway tracks; metal street furniture.
A gas injected upper tundish nozzle including: a protective can; a ceramic inner portion disposed within the protective can, the ceramic inner portion having gas flow pathways therein; a gas injection port attached to the protective can allowing for the injection of gas through the protective can and into the gas flow pathways within the ceramic inner portion. A gas flow seal is formed between the protective can and the ceramic inner portion. The gas flow seal blocks gas leakage from the gap between the protective can and the ceramic inner portion. The gas flow seal is formed of nickel or an alloy of nickel.
A method for making a tempered and coated steel sheet having a composition containing the following elements, expressed in percentage by weight: 0.17%≤carbon≤0.25%, 1.8%≤manganese≤2.3%, 0.5%≤silicon≤2.0%, 0.03%≤aluminum≤1.2%, sulphur≤0.03%, phosphorus≤0.03%, the remainder composition being composed of iron and unavoidable impurities caused by processing. The composition may also contain one or more of the following elements chromium≤0.4%, molybdenum≤0.3%, niobium≤0.04%, titanium≤0.1%.
A hot rolled steel sheet having a composition including of the elements, 0.02%≤Carbon≤0.2%, 3%≤Manganese≤9%, 0.2%≤Silicon≤1.2%, 0.9%≤Aluminum≤2.5%, 0%≤Phosphorus≤0.03%, 0%≤Sulfur≤0.03%, 0%≤Nitrogen≤0.025%, 0%≤Molybdenum≤0.6%, 0%≤Titanium≤0.1%, 0.0001%≤Boron≤0.01%, 0%≤Chromium≤0.5%, 0%≤Niobium≤0.1%, 0%≤Vanadium≤0.15%, 0%≤Nickel≤1%, 0%≤Copper≤1%, 0%≤Calcium≤0.005%, 0%≤Magnesium≤0.0010%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the steel sheet including in area fraction, at least 60% of tempered martensite, 15% to 40% residual austenite, 0% to 10% polygonal ferrite, 0% to 5% of bainite, 0 to 15% of fresh martensite and 0% to 5% of carbides of Niobium, Titanium, Vanadium or Iron.
Medium manganese powder for additive manufacturing, printed part and method of manufacturing the same The present invention relates to a medium manganese powder for the manufacturing of steel parts and in particular for their additive manufacturing, and to the printed part having a composition comprising, by weight percent: C: 0.03 - 0.60%, Mn: 2.5 – 12.0 %, O ≤ 0.100 %, P ≤ 0.013 %, S ≤ 0.015 %, N ≤ 0.200 % and comprising optionally one or more of the following elements, in weight percentage: Al ≤ 1.0%, Mo ≤ 0.65%, B ≤ 0.004 %, Si ≤ 3 %, Ti ≤ 0.2 %, Nb ≤ 0.2%, V ≤ 0.3%, Sn ≤ 0.1%, Sb≤ 0.1%, Ni ≤ 1.0%, Cr ≤ 1.0%, Cu ≤ 1.0% the remainder of the composition being iron and unavoidable impurities resulting from the elaboration.
The present invention relates to a method for monitoring a steel processing line (1) that comprises: - a control module (11) which determines line control signals (MP) for controlling the steel processing line, the line control signals being determined depending on a chemical composition CC of a steel semi-product (6) being processed and depending on a target property P for said semi-product, and - an abnormality detector (12), which determines an abnormality indicator (ind) which specifies whether the line control signals (MP) are normal or abnormal, an abnormality cause (ACk) selected in a list of predetermined abnormality causes being then specified, the abnormality indicator being determined using a trained classifier whose inputs comprise at least: said chemical composition CC, said target property P, and the line control signals (MP).
C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
C21D 11/00 - Process control or regulation for heat treatments
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
100.
MEDIUM MANGANESE POWDER FOR ADDITIVE MANUFACTURING, PRINTED PART AND METHOD OF MANUFACTURING THE SAME
Medium manganese powder for additive manufacturing, printed part and method of manufacturing the same The present invention relates to a medium manganese powder for the manufacturing of steel parts and in particular for their additive manufacturing, and to the printed part having a composition comprising, by weight percent: C: 0.03 - 0.60%, Mn: 2.5 – 12.0 %, O ≤ 0.100 %, P ≤ 0.013 %, S ≤ 0.015 %, N ≤ 0.200 % and comprising optionally one or more of the following elements, in weight percentage: Al ≤ 1.0%, Mo ≤ 0.65%, B ≤ 0.004 %, Si ≤ 3 %, Ti ≤ 0.2 %, Nb ≤ 0.2%, V ≤ 0.3%, Sn ≤ 0.1%, Sb≤ 0.1%, Ni ≤ 1.0%, Cr ≤ 1.0%, Cu ≤ 1.0% the remainder of the composition being iron and unavoidable impurities resulting from the elaboration.
