06 - Common metals and ores; objects made of metal
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Metal Tubes and pipes for construction; non-electric metal
hardware; building materials made of metal; grilles and
screens of metal; fences of metal, latticework of metal;
springs (metal hardware); metal drawing products, bolts and
nails not included in other classes; sheet metal,
multi-layered sheet metal and multi-layered metal products
not included in other classes; armor plating; ferrules of
metal; frames of metal for construction; metal tanks and
containers; metal boxes (not included in other classes),
including welded metal boxes and components thereof such as
welded box bases, rings and sealing plugs of metal; cans of
metal and lids of metal therefor, including cans of metal
for beverages; metal packaging containers; storage tanks of
metal; foundry molds of metal; iron and steel products for
foundry use not included in other classes, including
billets, sheets, slabs, strips, bands, blanks, rings, coils,
profile strips, bars, joists, joists, bands, dowels, tubes,
wires, cables, blocks, ingots and forge ingot; heavy metal
torch products not included in other classes; balls of
steel; tiles of metal for building; heavy metal products,
not included in other classes, including forged, molded,
molded, die-cast, molded, welded or machined parts, used in
all industries; common metals and alloys thereof; steel,
unwrought or semi-wrought, including stainless steel, carbon
steel, coated steel, coated quenched steel, chromium steel,
galvanized steel, electrogalvanized steel, lacquered steel,
colored steel and aluminium-coated steel; cast iron,
unwrought or semi-wrought; metal waste (iron scrap); iron,
unwrought or semi-wrought, including tinplate, iron for
direct reduction and directly reduced iron; ores of metal,
including crude or processed ores; building materials of
metal; laminated or sectional metal building materials, such
as heavy sections, steel profiles, joists, sheet piles and
beams; metal reinforcing materials for concrete; metal cover
plates for building purposes; flooring of metal, floor tiles
of metal, partitions of metal, multilayer panels of metal,
linings of metal, coatings and linings of metal (building
materials); transportable buildings of metal, including
shelters of metal and parts of shelters, buildings of metal
sections for residential use, which can also serve as small
commercial or industrial premises; materials of metal for
railway tracks, including rails and components therefor;
non-electric cables and wires of common metal, including
wire welding wire and barbed wire. Vulcanization; treatment of metals; treatment of ores,
steel, common metals and alloys thereof; treatment of metals
and all mechanical, thermomechanical or chemical
transformations of the properties and characteristics of
metals, including direct reduction of iron, metal tempering,
finishing of metal surfaces, brazing, casting, anodizing,
chromium plating, sintering, electrolytic zinc plating,
phosphating, milling, forming, tin-plating, galvanization,
nickel-plating, laminating, armor plating, cutting,
polishing, magnetization, plating, stretching, pickling and
welding; recycling of metal products; treatment of materials
during the manufacturing process of metal products, such as
forging, pressing, deburring, machining, laminating and
forming of metals; nitriding (treatment of materials);
treatment of materials for boiler-making.
2.
MEDIUM NICKEL POWDER FOR ADDITIVE MANUFACTURING, PRINTED PART AND METHOD OF MANUFACTURING THE SAME
The present invention relates to a high nickel 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: 0.1 - 1.0 %, Ni 1.5 – 7.5% 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 ≤ 0.01 % Si ≤ 3 %, Ti ≤ 0.2 %, Nb ≤ 0.2%, V ≤ 0.3%, Sn ≤ 0.1%, Sb ≤ 0.1%, Cr ≤ 0.7%, Cu ≤ 0.7% the remainder of the composition being iron and unavoidable impurities resulting from the elaboration.
B33Y 70/00 - Materials specially adapted for additive manufacturing
C22C 33/02 - Making ferrous alloys by powder metallurgy
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/40 - Ferrous alloys, e.g. steel alloys containing chromium with nickel
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
3.
HIGH STRENGTH ZINC COATED STEEL SHEET, AND METHOD FOR MANUFACTURING THE SAME.
The invention relates to a high strength zinc coated steel sheet made of a steel having a composition comprising, by weight percent C: 0.20 - 0.35 %, Mn: 0.5 – 3.0 %, B: 0.0005 – 0.005%, Si 0.01- 1.20 %, Cr 0.01 - 1.5 % S ≤ 0.010 %, P ≤ 0.020 %, N ≤ 0.008 % and comprising optionally one or more of the following elements, in weight percentage: Al ≤ 1%, Mo ≤ 0.4 %, Ti ≤ 0.05 %, Nb ≤ 0.05 %, said steel sheet having a microstructure comprising, in area fraction, bainite and tempered martensite, the sum being comprised from 25% to 65%, the rest being fresh martensite and martensite-austenite islands.
Medium nickel powder for additive manufacturing, printed part and method of manufacturing the same The present invention relates to a high nickel 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: 0.1 - 1.0 %, Ni 1.5 – 7.5% Al 0.01- 1.0%, Si 0.05 - 3 %, 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: Mo ≤ 0.30%, B ≤ 0.01 %, Ti ≤ 0.2 %, Nb ≤ 0.2%, V ≤ 0.3%, Sn ≤ 0.1%, Sb ≤ 0.1%, Cr ≤ 0.5%, Cu ≤ 0.7% the remainder of the composition being iron and unavoidable impurities resulting from the elaboration.
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/08 - Ferrous alloys, e.g. steel alloys containing nickel
C22C 38/60 - Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium or antimony, or more than 0.04% by weight of sulfur
C22C 38/16 - Ferrous alloys, e.g. steel alloys containing copper
C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
C22C 38/12 - Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium or niobium
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
5.
HIGH NICKEL POWDER FOR ADDITIVE MANUFACTURING, PRINTED PART AND METHOD OF MANUFACTURING THE SAME
High nickel powder for additive manufacturing, printed part and method of manufacturing the same The present invention relates to a high nickel 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: 0.1 - 1.0 %, Ni 8.5 – 17.5%, Si 0.05 – 3% 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 ≤ 0.01 % Ti ≤ 0.2 %, Nb ≤ 0.2%, V ≤ 0.3%, Sn ≤ 0.1%, Sb ≤ 0.1%, Cr ≤ 0.7%, Cu ≤ 0.7% the remainder of the composition being iron and unavoidable impurities resulting from the elaboration.
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/60 - Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium or antimony, or more than 0.04% by weight of sulfur
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/16 - Ferrous alloys, e.g. steel alloys containing copper
C22C 38/12 - Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium or niobium
C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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
06 - Common metals and ores; objects made of metal
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Metal Tubes and pipes for construction; non-electric metal
hardware; building materials made of metal; grilles and
screens of metal; fences of metal, latticework of metal;
springs (metal hardware); metal drawing products, bolts and
nails not included in other classes; sheet metal,
multi-layered sheet metal and multi-layered metal products
not included in other classes; armor plating; ferrules of
metal; frames of metal for construction; metal tanks and
containers; metal boxes (not included in other classes),
including welded metal boxes and components thereof such as
welded box bases, rings and sealing plugs of metal; cans of
metal and lids of metal therefor, including cans of metal
for beverages; metal packaging containers; storage tanks of
metal; foundry molds of metal; iron and steel products for
foundry use not included in other classes, including
billets, sheets, slabs, strips, bands, blanks, rings, coils,
profile strips, bars, joists, joists, bands, dowels, tubes,
wires, cables, blocks, ingots and forge ingot; heavy metal
torch products not included in other classes; balls of
steel; tiles of metal for building; heavy metal products,
not included in other classes, including forged, molded,
molded, die-cast, molded, welded or machined parts, used in
all industries; common metals and alloys thereof; steel,
unwrought or semi-wrought, including stainless steel, carbon
steel, coated steel, coated quenched steel, chromium steel,
galvanized steel, electrogalvanized steel, lacquered steel,
colored steel and aluminium-coated steel; cast iron,
unwrought or semi-wrought; metal waste (iron scrap); iron,
unwrought or semi-wrought, including tinplate, iron for
direct reduction and directly reduced iron; ores of metal,
including crude or processed ores; building materials of
metal; laminated or sectional metal building materials, such
as heavy sections, steel profiles, joists, sheet piles and
beams; metal reinforcing materials for concrete; metal cover
plates for building purposes; flooring of metal, floor tiles
of metal, partitions of metal, multilayer panels of metal,
linings of metal, coatings and linings of metal (building
materials); transportable buildings of metal, including
shelters of metal and parts of shelters, buildings of metal
sections for residential use, which can also serve as small
commercial or industrial premises; materials of metal for
railway tracks, including rails and components therefor;
non-electric cables and wires of common metal, including
wire welding wire and barbed wire. Vulcanization; treatment of metals; treatment of ores,
steel, common metals and alloys thereof; treatment of metals
and all mechanical, thermomechanical or chemical
transformations of the properties and characteristics of
metals, including direct reduction of iron, metal tempering,
finishing of metal surfaces, brazing, casting, anodizing,
chromium plating, sintering, electrolytic zinc plating,
phosphating, milling, forming, tin-plating, galvanization,
nickel-plating, laminating, armor plating, cutting,
polishing, magnetization, plating, stretching, pickling and
welding; recycling of metal products; treatment of materials
during the manufacturing process of metal products, such as
forging, pressing, deburring, machining, laminating and
forming of metals; nitriding (treatment of materials);
treatment of materials for boiler-making.
06 - Common metals and ores; objects made of metal
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Materials made of unwrought and semi-wrought metals, not for
a specified use; building components and materials of metal;
doors, gates, windows and window coverings of metal;
hardware of metal; containers of metal for storage,
transport and packaging; statues and works of art made of
common metal; metal structures and transportable buildings
of metal. Air and water purification and conditioning services;
production of energy; deep-drawing of metals; boilermaking;
assembling of products for the benefit of others; custom
assembly of materials for third parties; joining of
components using adhesives; custom manufacture of steel
building elements; custom manufacture of semiconductor
components, devices and circuits; coppersmithing services;
refining of metals; applying finish to stainless steel
sheets and coils; application of wear-resistant coatings by
means of electrolytic processes; application of
wear-resistant coatings by autocatalytic processes;
application of wear-resistant coatings to engineering
components; application of wear-resistant coatings on metals
and plastics; application of coatings in the form of powder;
Soldering of metals; chromium plating; chromium plating of
metal objects; chromium plating of metal items; hard
chromium plating of metal surfaces; hard chromium plating
and hard nickel plating of metal surfaces; staining;
coloring of metals other than painting; metal casting;
enameling of metals; surface finishing by hammering; metal
finishing; surface finishing of metal articles; cold metal
shaping; shaping of metal components; extrusion of metal
alloys; silage; cutting of metals; rolling of metals;
laminating; information relating to the treatment of
materials; hot dipping of metals; galvanizing of metals;
galvanization; milling; magnetization; exterior and interior
plating of pipes and tubes of metal; metal plating and
lamination; drilling of metals; hard nickel plating of metal
surfaces; nickel plating; planing of materials; refining
services; metal pressing; polymerization; polishing of
metals; sawing of materials; coating of metals other than
paint; metal coating [plating]; plating [coating] by
electrolysis; sheet material encapsulation services;
brushing of stainless steel; cutting of steel; deposit of
steam on metal surfaces; metal plating services; polishing
of stainless steel; die-casting of metals; galvanic
services; metal casting; metal melting services; services
for agglomerating of solid materials [treatment of
materials]; metal treatment [tempering]; soil, waste or
water treatment services [environmental cleanup services];
fuel treatment services; metal coating for surfaces;
treatment of iron oxide; treatment of used exhaust catalysts
to transform them into noble metals; metal processing
[stamping]; metal processing [forging]; metal processing
[profiling]; metal processing [enameling]; anti-corrosion
treatment of metal parts; treatment of metal parts to
prevent corrosion using hot-dip galvanizing and coating
processes in the form of powder; processing of semi-finished
products by electrolysis; treatment of products processed by
electrolysis; treatment of slag from metal casting;
treatment of metal surfaces via precision grinding and
abrasive polishing; treatment of metal surfaces by means of
precision grinding techniques; treatment of metal surfaces
by means of abrasive polishing; treatment of metals; metal
processing [embossing]; treatment and coating of metal
surfaces; heat treatment and coating of steel; metallurgical
treatment; heat treatment of metal surfaces; heat treatment
of pipes and tubes of metal; heat treatment of metals;
processing of metals; zinc plating; tempering of metals;
vulcanization [material treatment].
06 - Common metals and ores; objects made of metal
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Metal structures and transportable buildings of metal;
statues and works of art made of common metal; containers of
metal for storage, transport and packaging; hardware of
metal; doors, gates, windows and window coverings of metal;
building components and materials of metal; materials of
unwrought and semi-wrought metals, not for a specified use. Printing, and photographic and cinematographic development;
production of energy; air and water purification and
conditioning services; processing food and beverages;
butchering services for meat; refining of metals; applying
finish to stainless steel sheets and coils; application of
motifs in relief on the surfaces of boards; application of
relief patterns to cardboard surfaces; application of
surface coatings to machines and tools for protective
purposes; application of coatings via chemical vapor
deposition techniques; application of coatings using
physical vapor deposition techniques; application of
wear-resistant coatings by autocatalytic processes;
application of wear-resistant coatings by means of
electrolytic processes; application of wear-resistant
coatings to engineering components; application of
wear-resistant coatings on metals and plastics; application
of coatings using thermal plasma spraying techniques;
application of coatings in the form of powder; assembling
components using ultrasonic welding techniques; Soldering of
metals; chromium plating of metal items; chromium plating of
metal objects; hard chromium plating of metal surfaces; hard
chromium plating and hard nickel plating of metal surfaces;
staining; coloring of metals other than painting; catalytic
conversion of chemical compounds; metal casting; cutting of
metals; deep-drawing of metals; extrusion of metal alloys;
extrusion of plastic materials [transformation of plastic
materials]; shaping of metal components; cold metal shaping;
gas filtration; filtration of liquids; metal finishing;
surface finishing of metal articles; surface finishing by
hammering; disposal of chemicals particularly in chemical
treatment fluids; enameling; enameling of metals; tin
plating; laminating; rolling of metals; information relating
to the treatment of materials; hot dipping of metals;
information with respect to chemical treatment;
fireproofing; fireproofing of already constructed buildings;
galvanizing of metals; galvanization; milling; surface
finishing by shot blasting; providing information with
respect to treatment of materials; hard nickel plating of
metal surfaces; nickel plating; metal plating and
lamination; exterior and interior plating of pipes and tubes
of metal; burnishing by abrasion; planing of materials;
metal pressing; polymerization; abrasive polishing of metal
surfaces; polishing of metals; metal coating [plating];
plating [coating] by electrolysis; brushing of stainless
steel; chroming of cylinders; electrolytic colouring
services; cutting of steel; deposit of steam on metal
surfaces; metal casting; metal melting services; galvanic
services; metal plating services; metal treatment
[tempering]; services for agglomerating of solid materials
[treatment of materials]; treatment of materials using
chemicals; metal processing [stamping]; metal processing
[forging]; metal processing [profiling]; metal processing
[enameling]; anti-corrosion treatment of metal parts;
treatment of metal parts to prevent corrosion using hot-dip
galvanizing and coating processes in the form of powder;
metal processing [embossing]; treatment of metals; treatment
of carpets and rugs which contribute to anti-static
properties; treatment of metal surfaces by means of abrasive
polishing; treatment of metal surfaces by means of precision
grinding techniques; treatment of metal surfaces via
precision grinding and abrasive polishing; processing of
semi-finished products by electrolysis; treatment of slag
from metal casting; treatment of products processed by
electrolysis; processing of metals; metallurgical treatment;
heat treatment of metal surfaces; heat treatment and coating
of steel; treatment and coating of metal surfaces; tempering
of metals; zinc plating; vulcanization [material treatment].
9.
HIGH STRENGTH GALVANIZED STEEL SHEET, AND METHOD FOR MANUFACTURING THE SAME
The invention relates to a high strength galvanized steel sheet made of a steel having a composition comprising, by weight percent C: 0.20 - 0.35 %, Mn: 0.5 – 3.0 %, B: 0.0005 – 0.005%, Si 0.01- 1.20 %, Cr 0.01 - 1.5 % S ≤ 0.010 %, P ≤ 0.020 %, N ≤ 0.008 % and comprising optionally one or more of the following elements, in weight percentage: Al ≤ 1%, Mo ≤ 0.4 %, Ti ≤ 0.05 %, Nb ≤ 0.05 %, said steel sheet having a microstructure comprising, in surface fraction, - bainite and tempered martensite, the sum being comprised from 25% to 65%, the rest being fresh martensite and martensite-austenite islands.
The present invention relates to a high nickel 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: 0.1 - 1.0 %, Ni 8.5 – 17.5% 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 ≤ 0.01 % Si ≤ 3 %, Ti ≤ 0.2 %, Nb ≤ 0.2%, V ≤ 0.3%, Sn ≤ 0.1%, Sb ≤ 0.1%, Cr ≤ 0.7%, Cu ≤ 0.7% the remainder of the composition being iron and unavoidable impurities resulting from the elaboration.
B33Y 70/00 - Materials specially adapted for additive manufacturing
C22C 33/02 - Making ferrous alloys by powder metallurgy
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/40 - Ferrous alloys, e.g. steel alloys containing chromium with nickel
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
11.
METHOD FOR DETERMINING A PROPERTY OF A METALLURGICAL PRODUCT AND ASSOCIATED ELECTRONIC DEVICE
A method for training a global model configured for determining a property of a metallurgical product output by a metallurgical production line, the method comprising: - training individual models respectively associated to different production lines, the individual models being Gaussian Process or kernel-based regression models, based on a same kernel function and being trained with the constraint that the values of the lengthscales parametrizing the kernel function are identical for the different individual models, the training comprising determining optimized values for the lengthscales; - training the global model using production data coming from the different production lines, the global model being a Gaussian Process or a kernel-based regression model based on the same kernel function as the individual models, the values for the lengthscales remaining equal to the optimized values previously determined, when training the global model.
G05B 13/04 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
G05B 17/02 - Systems involving the use of models or simulators of said systems electric
A press hardened coated steel part, comprising a base steel (1) and a coating layer (2) based on aluminium and having a thickness from 25 to 50 µm, said coating layer comprises the following layers successively: - an intermetallic layer (21) in contact with the base steel and having a thickness from 2 to 20 µm, - an intermediate layer (22) having a thickness from 12 to 19 µm, - a surface layer (23) having a thickness of 11 µm measured from a surface of the press hardened coated steel part, wherein the surface layer (23) comprises in terms of surface portion from 0.8 % to 20.0 % of a Mg2Si phase, the remainder being a first binary phase, a ternary phase, a second binary phase, and an oxide phase.
A method for monitoring a steel processing line that includes: a control module which determines line control signals for controlling the steel processing line, the line control signals being determined depending on a chemical composition of a steel semi-product being processed and depending on a target property for the semi-product, and an abnormality detector, which determines an abnormality indicator which specifies whether the line control signals are normal or abnormal, an abnormality cause 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: the chemical composition, the target property, and the line control signals.
A hot rolled steel sheet having a chemical composition including, in weight %: 0.15%≤C≤0.20%, 0.50%≤Mn≤2.00%, 0.25%≤Si≤1.25%, 0.10%≤Al≤1.00%, with 1.00%≤(Al+Si)≤2.00%, 0.001%≤Cr≤0.250%, P≤0.02%, S≤0.005%, N≤0.008%, and optionally one or more elements among: 0.005%≤Mo≤0.250%, 0.005%≤V≤0.250%, 0.0001%≤Ca≤0.003% and 0.001%≤Ti≤0.025%, the remainder being Fe and unavoidable impurities, and wherein the microstructure includes in surface fraction, ferrite and bainite, the sum of which being greater than 5% and strictly lower than 20%, the remainder consisting of tempered martensite.
A cold rolled and annealed steel sheet includes by weight: 0.6≤C≤1.3%,15.0≤Mn≤35%, 5≤Al≤15%, Si≤2.40%, S≤0.03%, P≤0.1%, N≤0.1%, possibly one or more optional elements chosen among Ni, Cr and Cu in an respective amount of up to 4.0%, up to 3.0% and up to 3.0% and possibly one or more elements chosen among B, Ta, Zr, Nb, V, Ti, Mo, and W in a cumulated amount of up to 2.0%, the remainder of the composition making up of iron and inevitable impurities resulting from the elaboration, the microstructure of the sheet including 0
A manufacturing method comprising the following steps successively: A) Providing a steel sheet for press hardening, B) Dipping said steel sheet into a molten metal bath comprising, by weight percent: from 5.0 to 13.0 % of Si, from 2.0 to 7.0 % of Mg, from 0.01 to 0.1 % of Ca, from 0.5 to 4.0 % of Fe, the remainder being aluminium and impurities from the manufacturing process up to 1.5 % %, wherein the Si content and the Mg content in wt.% satisfy with the following equation: (Formule 1), and wherein the temperature of the molten metal bath is set at a temperature from 600 to 750°C, C) Wiping the liquid metal on the strip with gas knives to adjust the coating thickness, D) Cooling the coated steel sheet.
C23C 2/28 - Thermal after-treatment, e.g. treatment in oil bath
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
17.
PRESS HARDENED COATED STEEL PART, AND METHOD FOR MANUFACTURING THE SAME
A press hardened coated steel part, comprising a base steel (1) and a coating layer (2) based on aluminium and having a thickness from 25 to 50 µm, said coating layer comprises the following layers successively: - an intermetallic layer (21) in contact with the base steel and having a thickness from 2 to 20 µm, - an intermediate layer (22) having a thickness from 12 to 19 µm, - a surface layer (23) having a thickness of 11 µm measured from a surface of the press hardened coated steel part, wherein the surface layer (23) comprises in terms of area fraction from 0.8 % to 20.0 % of a Mg2Si phase, the remainder being a first binary phase, a ternary phase, a second binary phase, and an oxide phase.
A manufacturing method comprising the following steps successively: A) Providing a steel sheet for press hardening, B) Dipping said steel sheet into a molten metal bath comprising, by weight percent: from 5.0 to 13.0 % of Si, from 2.0 to 7.0 % of Mg, from 0.01 to 0.1 % of Ca, from 0.5 to 4.0 % of Fe, the remainder being aluminium and impurities from the manufacturing process up to 1.5 % %, wherein the Si content and the Mg content in wt.% satisfy with the following equation: Formula (I), and wherein the temperature of the molten metal bath is set at a temperature from 600 to 750°C, C) Wiping the liquid metal on the strip with gas knives to adjust the coating thickness, D) Cooling the coated steel sheet.
C23C 2/28 - Thermal after-treatment, e.g. treatment in oil bath
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 2/02 - Pretreatment of the material to be coated, e.g. for coating on selected surface areas
19.
Steel sheet and high strength press hardened steel part having excellent bending and method of manufacturing the same
2. 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°.
A method for hot rolling a steel including the steps of i. elaborating, by smelting steel scrap including at least one of the following residual elements: Mo, Sn, Sb, As, a steel grade having a theoretical hot rolling temperature THR_TH, by smelting steel scraps including at least one of the following residual elements: Mo, Sn, Sb, As, and optionally hot metal coming from a blast furnace and/or direct reduced iron, ii. estimating the liquid steel composition, iii. casting a semi-finished product with the liquid steel, iv. defining, TOFFSET, the smallest hot rolling temperature increase able to offset the presence of the residual elements: Mo, Sn, Sb and/or As, v. hot rolling the semi-finished product at a temperature THR being: THR=THR_TH+TOFFSET.
B21B 1/22 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length
B21B 1/26 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length in a continuous process by hot-rolling
21.
CRACK-CONTAINING HOT-STAMPED STEEL PART WITH A THIN COATING WITH EXCELLENT SPOT-WELDABILITY AND EXCELLENT PAINTING ADHESION
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:
1
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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:
1
6
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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:
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A method for manufacturing a hot rolled and heat-treated steel sheet includes casting to obtain a semi-finished product having a composition comprising, by weight percent: C: 0.12-0.25%, Mn: 3.0-8.0%, Si: 0.7-1.5%, Al: 0.3-1.2%, B: 0.0002-0.004%, S≤0.010%, P≤0.020%, N≤0.008%, and iron; reheating at a Treheat between 1150° C. and 1300° C.; hot rolling the reheated semi-finished product with a finish rolling temperature (Tnr-100° C. to 950° C.), coiling the hot rolled steel sheet at a Tcoil (20° C. and 700° C.) and cooling to obtain a microstructure comprising martensite and bainite, M+B>80%, F<20%, and <20% of the sum of martensite-austenite (M-A) islands and carbides, and having the multiplication of PAGS <1000 μm2 and a pancaking index <5; reheating, quenching, reheating to a partitioning temperature, holding for 1 to 1000 seconds, and cooling.
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
B21B 1/22 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length
A method for manufacturing a hot-rolled and coated steel sheet having a thickness between 1.8 mm and 5 mm. The method contains the steps of providing a semi-product having a composition containing: 0.04%≤C≤0.38%, 0.40%≤Mn≤3%, 0.005%≤Si≤0.70%, 0.005%≤Al≤0.1%, 0.001%≤Cr≤2%, 0.001%≤Ni≤2%, 0.001%≤Ti≤0.2%, Nb≤0.1%, B≤0.010%, 0.0005%≤N≤0.010%, 0.0001%≤S≤0.05%, 0.0001%≤P≤0.1%, Mo≤0.65%, W≤0.30%, Ca≤0.006%, hot-rolling with a final rolling temperature FRT, to obtain a hot-rolled steel product having a thickness between 1.8 mm and 5 mm, then cooling down to a coiling temperature Tcoil satisfying: 450° C.≤Tcoil≤Tcoilmax with Tcoilmax=650−140×fγ, Tcoilmax being expressed in degrees Celsius and fγ designating the austenite fraction just before the coiling, and coiling to obtain a hot-rolled steel substrate, pickling and coating the hot-rolled steel substrate with Al or an Al alloy by continuous hot-dipping in a bath, to obtain a hot-rolled and coated steel sheet containing a hot-rolled steel sheet and an Al or an Al alloy coating, having a thickness between 10 and 33 μm, on each side of the hot-rolled steel sheet.
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
24.
HOT-ROLLED AND COATED STEEL SHEET FOR HOT-STAMPING, HOT-STAMPED COATED STEEL PART AND METHODS FOR MANUFACTURING THE SAME
A method for manufacturing a hot-rolled and coated steel sheet having a thickness between 1.8 mm and 5 mm. The method contains the steps of providing a semi-product having a composition containing: 0.04%≤C≤0.38%, 0.40%≤Mn≤3%, 0.005%≤Si≤0.70%, 0.005%≤Al≤0.1%, 0.001%≤Cr≤2%, 0.001%≤Ni≤2%, 0.001%≤Ti≤0.2%, Nb≤0.1%, B≤0.010%, 0.0005%≤N≤0.010%, 0.0001%≤S≤0.05%, 0.0001%≤P≤0.1%, Mo≤0.65%, W≤0.30%, Ca≤0.006%, hot-rolling with a final rolling temperature FRT, to obtain a hot-rolled steel product having a thickness between 1.8 mm and 5 mm, then cooling down to a coiling temperature Tcoil satisfying: 450° C.≤Tcoil≤Tcoilmax with Tcoilmax=650-140×fγ, Tcoilmax being expressed in degrees Celsius and fγ designating the austenite fraction just before the coiling, and coiling to obtain a hot-rolled steel substrate, pickling and coating the hot-rolled steel substrate with Al or an Al alloy by continuous hot-dipping in a bath, to obtain a hot-rolled and coated steel sheet containing a hot-rolled steel sheet and an Al or an Al alloy coating, having a thickness between 10 and 33 μm, on each side of the hot-rolled steel sheet.
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
The invention relates to a sandwich panel comprising a photovoltaic active area positioned on the outer sheet, whose upper electrical connector is positioned in an upper cavity positioned within the insulation material adjacent to the upper transverse side of the insulation material so that the upper electrical connector can be accessed from the upper cavity along the upper transverse side, and whose lower electrical connector is positioned in a lower cavity positioned within the insulation material adjacent to the lower transverse side of the insulation material so that the lower electrical connector can be accessed from the lower cavity along the lower transverse side.
The invention relates to a sandwich panel comprising a photovoltaic active area positioned on an outer sheet comprising an outer mortise and an outer tenon, the upper, respectively lower, electrical connector of the photovoltaic active area being positioned in an upper, respectively lower, cavity, the upper cavity being positioned within the insulation material in the upper half of the sandwich panel and adjacent to either one of the longitudinal sides of the insulation material or the inner sheet so that the upper electrical connector can be accessed from the upper cavity, the lower cavity being positioned within the insulation material in the lower half of the sandwich panel and adjacent to either one of the longitudinal sides of the insulation material or the inner sheet so that the first lower electrical connector can be accessed from the lower cavity.
H02S 20/23 - Supporting structures directly fixed to an immovable object specially adapted for buildings specially adapted for roof structures
H02S 40/36 - Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection
The invention relates to a process for manufacturing a sandwich panel comprising a photovoltaic active area positioned on the outer sheet and whose upper, respectively lower, electrical conductor is connected to an upper, respectively lower, cable at the backside of the outer sheet, the process comprising positioning the outer sheet in a mold, inserting at least one of the first upper electrical connector and the first lower electrical connector, with a downstream portion of its cable, in a groove formed in the outer sheet, putting insulation in place and maintaining the inner sheet at a given distance from the outer sheet.
The invention relates to a sandwich panel comprising a photovoltaic active area positioned on an outer sheet comprising an outer mortise and an outer tenon, the upper, respectively lower, electrical connector of the photovoltaic active area being positioned in an upper, respectively lower, cavity, the upper cavity being positioned within the insulation material in the upper half of the sandwich panel and adjacent to either one of the longitudinal sides of the insulation material or the inner sheet so that the upper electrical connector can be accessed from the upper cavity, the lower cavity being positioned within the insulation material in the lower half of the sandwich panel and adjacent to either one of the longitudinal sides of the insulation material or the inner sheet so that the first lower electrical connector can be accessed from the lower cavity.
H02S 20/23 - Supporting structures directly fixed to an immovable object specially adapted for buildings specially adapted for roof structures
H02S 40/36 - Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection
The invention relates to a process for manufacturing a sandwich panel comprising a photovoltaic active area positioned on the outer sheet and whose upper, respectively lower, electrical conductor is connected to an upper, respectively lower, cable at the backside of the outer sheet, the process comprising positioning the outer sheet in a mold, inserting at least one of the first upper electrical connector and the first lower electrical connector, with a downstream portion of its cable, in a groove formed in the outer sheet, putting insulation in place and maintaining the inner sheet at a given distance from the outer sheet.
The invention relates to a sandwich panel comprising a photovoltaic active area positioned on the outer sheet and whose electrical connectors are positioned in a first cavity positioned within the insulation material and adjacent to either one of the sides of the insulation material or the inner sheet so that the electrical connectors can be accessed from the first cavity.
H02S 20/23 - Supporting structures directly fixed to an immovable object specially adapted for buildings specially adapted for roof structures
31.
METHOD FOR DETERMINING A PROCESSING SEQUENCE FOR AN ENSEMBLE OF SEMI-PRODUCTS, RELATED PROCESSING METHOD, SCHEDULING DEVICE, PROCESSING LINE AND COMPUTER PROGRAM
This method for determining a processing sequence for an ensemble of semi-products is computer implemented and comprises: - an initialization phase (P01 ) wherein a list of the semi-products is acquired; - a feasibility phase (P02) wherein a feasible sequence is sought from a graph representing said ensemble, in which each semi-product is represented by a node, the feasibility phase comprising: + identifying (S01 ) a candidate path, and for the candidate path: + first searching (S02) along said candidate path for an infeasible transition between two successive nodes; if an infeasible transition is found: + second searching (S04) for a movable segment to be moved; if a movable segment is found: + moving (S06) the movable segment; + until a stop condition is reached, carrying out successively additional iteration(s) of the first searching, second searching and moving; the processing sequence being determined from the candidate path of the last iteration.
The invention relates to a process for manufacturing a sandwich panel comprising a photovoltaic active area positioned on the outer sheet and whose upper, respectively lower, electrical conductor is connected to an upper, respectively lower, cable at the backside of the outer sheet, the latter comprising a cavity in which one of the first upper electrical connector and the first lower electrical connector is positioned, the process comprising positioning the outer sheet in a mold, inserting the other of the first upper electrical connector and the first lower electrical connector, with a downstream portion of its cable, either in a hole in one of the sides of the mold or in a groove formed in the inner sheet or in a groove formed in the outer sheet, putting insulation in place and maintaining the inner sheet at a given distance from the outer sheet.
The invention relates to a process for manufacturing a sandwich panel comprising a photovoltaic active area positioned on the outer sheet and whose upper, respectively lower, electrical conductor is connected to an upper, respectively lower, cable at the backside of the outer sheet, the latter comprising a cavity in which one of the first upper electrical connector and the first lower electrical connector is positioned, the process comprising positioning the outer sheet in a mold, inserting the other of the first upper electrical connector and the first lower electrical connector, with a downstream portion of its cable, either in a hole in one of the sides of the mold or in a groove formed in the inner sheet or in a groove formed in the outer sheet, putting insulation in place and maintaining the inner sheet at a given distance from the outer sheet.
The invention relates to a sandwich panel comprising a photovoltaic active area positioned on the outer sheet, whose upper electrical connector is positioned in an upper cavity positioned within the insulation material adjacent to the upper transverse side of the insulation material so that the upper electrical connector can be accessed from the upper cavity along the upper transverse side, and whose lower electrical connector is positioned in a lower cavity positioned within the insulation material adjacent to the lower transverse side of the insulation material so that the lower electrical connector can be accessed from the lower cavity along the lower transverse side.
The invention relates to a sandwich panel comprising a photovoltaic active area positioned on the outer sheet and whose electrical connectors are positioned in a first cavity positioned within the insulation material and adjacent to either one of the sides of the insulation material or the inner sheet so that the electrical connectors can be accessed from the first cavity.
A sealing lock for a vacuum deposition facility of a coating on a running metal strip following a running path, including walls and at least three pairs of rolls, inside the walls, wherein each pair of rolls of the at least three pairs of rolls includes a roll with a metal surface and a roll with an elastomer surface layer, having a thickness from 3 to 30 mm, forming a gap from 1 to 11 mm, the rolls with an elastomer surface layer of two successive pairs of rolls are on opposite sides of the running path.
A steel sheet, coated with a metallic coating including, by weight percent, from 7.5 to 9.0% of zinc, from 1.1 to 4.0% of silicon, from 1.1 to 8.0% of magnesium, up to 3.0% of iron, optional elements chosen from Pb, Ni, Zr, or Hf, the content by weight of each element being less than 0.3%, optionally up to 100 ppm of Calcium and unavoidable impurities up to 0.02%, a balance being aluminum, and wherein the coating weight of the metallic coating is from 50 to 500 g/m2 for the sum of both sides of the-steel sheet.
06 - Common metals and ores; objects made of metal
Goods & Services
Common metals and their alloys; steel, unwrought or
semi-wrought, specifically stainless steel, carbon steel,
coated steel, coated quenched steel, chromium steel,
galvanized steel, electrogalvanized steel; the aforesaid
goods being in the form of billets, cogs, slabs, plates,
foils, strips, ribbons, blanks, cylinders, spools, bands,
cross sections, bars, beams, joists, bands, pegs, tubes,
blocks, ingots; forged, molded, cast, die-cast, pressed,
welded or machined metal pieces, for use in all industries
and particularly in construction, packaging, household
electricals, automobiles, tools, machines and machine tools;
sheets of metal, sandwich sheets, profiled sheets, composite
sheets, coated sheets; multi-layered metal sheets with two
organic coatings and multi-layered metal panels with two
organic coatings; composite metal products specifically
sheets, plates, foils of metal; hot- or cold-rolled metal
products specifically sheets, plates, foils, strips,
ribbons, blanks, cylinders, spools, bands, cross sections,
bars, beams, joists; building materials of metal; cross
sections, heavy sections, headers, sheet piles, joists,
lining plates of metal for construction, floors of metal,
floor tiles of metal, partitions of metal, multi-layered
panels of metal, sidings of metal, single-skin or
double-skin cladding panels of metal, roofing of metal,
steel tubs, transportable buildings of metal; buildings of
metal particularly shelters designed for users of all types
of transport; pipes of metal; railway material of metal;
road signs of metal (neither luminous nor mechanical),
advertising and display boards of metal; crash barriers of
metal for roads, security bars and barriers of metal,
scaffolding of metal, bicycle shelters, cycle parking racks,
baskets, letter boxes of metal, tanks and containers of
metal; covering products and parts, of metal, designed to
form interior and exterior coverings for small and large
household electricals particularly for cooking,
refrigeration, washing and heating and for all furniture,
parts and components for domestic or canteen kitchens, metal
pieces and components of the aforesaid goods.
39.
A method for manufacturing pig iron in an electrical smelting furnace and associated electrical smelting furnace
A method for manufacturing pig iron in an electrical 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, tapping the pig iron into a ladle, and adding a carbon containing material directly in the pig iron in the runner of at least one of the smelting furnace tap holes. It also deals with the manufacturing of steel from the pig iron and the associated electrical smelting furnace.
A coated steel sheet providing cathodic protection and suitable for manufacturing a press hardened part with good powdering resistance during press-hardening and good corrosion performance. A method for the manufacture of hardened parts starting from a steel sheet coated with a metallic coating. The part has good characteristics with respect to corrosion and powdering resistance. The present disclosure is particularly well suited for the manufacture of automotive vehicles.
C21D 8/04 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
C22C 21/10 - Alloys based on aluminium with zinc as the next major constituent
41.
A NON-HEAT TREATED COLD ROLLED SUPER PLASTIC LOW DENSITY STEEL SHEET AND A METHOD OF PRODUCTION THEREOF
A hot stamped coated steel product, the hot stamped coated steel product including: a base steel; and a coating having a thickness of including, proceeding from the base steel outwards: (a) an interdiffusion layer, (b) an intermediate layer, (c) an intermetallic layer, and (d) a superficial layer, the base steel having a composition comprising: 0.15%
Method for butt-welding two sub-blanks of steel (10) comprising the steps of: - providing two sub-blanks (10) made of press-hardening steel grades, having a thickness of respectively t1 and t2 expressed in mm, and coated on both sides with an aluminum based metallic coating (2) comprising an intermetallic layer (21) in contact with a substrate (1) and a metallic layer (22) above it. - preparing said two sub-blanks (10) by removing at least said metallic layer (22) of said aluminum-based coating (2) on the top side of said weld edges (11) of each of said sub-blanks (10) to form removal zones (23), while leaving the full amount of said aluminum-based coating (2) on the bottom side of said weld edges (11). - positioning said two sub-blanks (10) side by side along their respective weld edges (11). - laser welding said two sub-blanks (10) using a laser beam (31) emitted by a laser head (30) traveling at a relative speed S_welding, expressed in m/min, and simultaneously adding a filler wire (41) having a diameter D_filler_wire, which is fed out of a filler wire feeder (40) at a speed S_filler_wire, expressed in m/min, to form a melt pool generated by said laser beam (31) and thus manufacture a laser welded blank (6) having a weld seam (5).
A method for manufacturing pig iron in a smelting furnace 13 including a vessel 20, 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 the associated electrical smelting furnace.
A method for heating a furnace including radiant tubes and being able to thermally treat a running steel strip including the steps of: i. supplying at least one of the radiant tubes with H2 and O2 such that the H2 and the O2 get combined into heat and steam, ii. recovering the steam from the at least one of the radiant tubes, iii. electrolysing the steam to produce H2 and O2, and iv. supplying at least one of the radiant tubes with the H2 and O2 produced in step iii, such that they get combined into heat and steam.
F27B 3/26 - Arrangements of heat-exchange apparatus
C25B 1/042 - Hydrogen or oxygen by electrolysis of water by electrolysis of steam
F27B 9/06 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and chargeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity electrically heated
F27D 17/13 - Arrangements for using waste heat using heat storage using regenerative heat exchangers
50.
STEEL PRODUCTION METHOD COMPRISING A MIXED GAS PRODUCTION STEP INVOLVING A VENTURI SYSTEM
The steel production method comprises: - a molten steel production step, producing a molten steel and an exhaust gas (12), - a gas conditioning step, wherein the exhaust gas (12) is fed to a pressure swing adsorption system (4) to produce an enriched gas (24) and a tail gas (26), - a chemical product production step, wherein the enriched gas (24) is fed to a biotechnological plant (6) to produce a chemical product (38) and a residual gas (40), - a mixed gas production step, wherein the tail gas (26) and the residual gas (40) are fed to a venturi system (36), the residual gas (40) being used as a driving force to generate a venturi effect and to withdraw the tail gas (26) from the swing pressure adsorption system (4).
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%, 0.01 % ≤ Titanium ≤ 0.1%, 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 65% to 95% Ferrite, 5% to 35% Bainite, Pearlite up to 3%, martensite and residual austenite up to a cumulated fraction of 2%, wherein the said hot rolled steel sheet has an inclusion density of at least 100 inclusions per square micro-meter and the inclusions having a size of 2 microns or more being 30% or less of the total number of inclusions.
Steel part having the following characteristics: -a chemical composition comprising, by weight % 0.26 ≤ C ≤ 0.33 0.15 ≤ Si ≤ 0.40 1.0 ≤ Mn ≤ 1.8 0.10 ≤ Cr ≤ 0.40 0.02 ≤ Al ≤ 0.10 0.01 ≤ Ti ≤ 0.06 0.0010 ≤ B ≤ 0.0050 the remainder of the composition being iron and unavoidable impurities resulting from the elaboration process, -a microstructure comprising, in surface fraction, 70% or more of auto- tempered martensite, from 1 to 20% of bainite, the rest of the microstructure comprising optionally retained austenite and ferrite.
Steel part having the following characteristics: -a chemical composition comprising, by weight % 0.26 ≤ C ≤ 0.33 0.15 ≤ Si ≤ 0.40 1.0 ≤ Mn ≤ 1.8 0.10 ≤ Cr ≤ 0.40 0.02 ≤ Al ≤ 0.10 0.01 ≤ Ti ≤ 0.06 0.0010 ≤ B ≤ 0.0050 the remainder of the composition being iron and unavoidable impurities resulting from the elaboration process, -a microstructure comprising, in surface fraction, 70% or more of auto-tempered martensite, from 1 to 20% of bainite, the rest of the microstructure comprising optionally retained austenite and ferrite.
Method for butt-welding two sub-blanks of steel (10) comprising the steps of: -providing two sub-blanks (10) made of press-hardening steel grades, having a thickness of respectively t1 and t2 expressed in mm, and coated on both sides with an aluminum based metallic coating (2) comprising an intermetallic layer (21) in contact with a substrate (1) and a metallic layer (22) above it. -preparing said two sub-blanks (10) by removing at least said metallic layer (22) of said aluminum-based coating (2) on the top side of said weld edges (11) of each of said sub-blanks (10) to form removal zones (23), while leaving the full amount of said aluminum-based coating (2) on the bottom side of said weld edges (11). - positioning said two sub-blanks (10) side by side along their respective weld edges (11). - laser welding said two sub-blanks (10) using a laser beam (31) emitted by a laser head (30) traveling at a relative speed S_welding, expressed in m/min, and simultaneously adding a filler wire (41) having a diameter D_filler_wire, which is fed out of a filler wire feeder (40) at a speed S_filler_wire, expressed in m/min, to form a melt pool generated by said laser beam (31) and thus manufacture a laser welded blank (6) having a weld seam (5).
A method for manufacturing pig iron in an electrical 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 tapping the pig iron into a ladle and adding a silicon containing material directly in the pig iron in the runner of at least one of the smelting furnace tap holes. It also deals with the manufacturing of steel from the pig iron and an associated electrical smelting furnace.
A method of manufacturing molten pig iron into an electrical smelting unit. The method includes the following successive steps: providing a directly reduced iron product, feeding the DRI product into the smelting unit, feeding together with the DRI product at least one steel or ironmaking by-product-based material including at least 10% in weight of slag forming agents, and melting the DRI product and the at least one steel or ironmaking by-product-based material to produce molten pig iron. A steel manufacturing method using the pig iron is also provided.
The instant technology concerns, inter alia, a method for monitoring the operation of a direct reduction plant (1) that comprises a direct reduction shaft furnace (10), the method comprising: s1: acquiring an image (Img) of an ensemble of pellets (8) output by the shaft furnace, s2: analysing said image using an algorithm suitable for detecting one or more clusters (9) of pellets and, optionally, one or more pieces of shaft internal crust, and s3: emitting an obstruction-risk signal if one or more clusters or pieces of crust are detected in step s2.
A method for manufacturing pig iron in an electrical smelting furnace including a vessel 20, 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 desulphurizing reagent directly in the pig iron layer. It also deals with the manufacturing of steel from the pig iron and the associated electrical smelting furnace.
A steel part includes a steel sheet substrate and a coating on at least one surface of the steel sheet substrate. The coating includes between 0.2 and 0.7% by weight of Al, with a remainder of the metal coating being Zn and inevitable impurities. The steel sheet substrate and the coating have at least one deformation. An outer surface of the coating has a waviness Wa0.8 of less than or equal to 0.43 μm.
C23C 2/06 - Zinc or cadmium or alloys based thereon
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
B32B 15/18 - Layered products essentially comprising metal comprising iron or steel
B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
C21D 7/00 - Modifying the physical properties of iron or steel by deformation
C21D 7/02 - Modifying the physical properties of iron or steel by deformation by cold working
C21D 7/04 - Modifying the physical properties of iron or steel by deformation by cold working of the surface
C21D 7/13 - Modifying the physical properties of iron or steel by deformation by hot working
C21D 8/00 - Modifying the physical properties by deformation combined with, or followed by, heat treatment
C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
C21D 8/04 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
C23C 2/00 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shapeApparatus therefor
C23C 2/02 - Pretreatment of the material to be coated, e.g. for coating on selected surface areas
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
C23C 2/16 - Removing excess of molten coatingsControlling or regulating the coating thickness using fluids under pressure, e.g. air knives
C23C 2/34 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shapeApparatus therefor characterised by the shape of the material to be treated
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
61.
METHOD OF WELDING A STEEL SHEET COMPRISING TIB2 PRECIPITATES
A process for welding at least two steel sheets including the following successive steps: providing at least one steel sheet having a composition including the following elements, expressed by weight percent: 0.01%≤C≤0.2%, 2.5%≤Ti≤10%, (0.45×Ti)−1.35%≤B≤(0.45×Ti)+0.70%, S≤0.03%, P≤0.04%, N≤0.05%, O≤0.05% and including precipitates of TiB2, the balance being Fe and unavoidable impurities resulting from the elaboration, providing a second steel sheet, welding the first steel sheet and the second steel sheet by using a filler wire, the filler wire having a composition, including Ti: 0.8-2 wt % to obtain a molten zone having an average content of free titanium Ti* above or equal to 0.60 wt %.
A method for manufacturing pig iron in an electrical 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 desulphurizing reagent directly in the pig iron layer. It also deals with the manufacturing of steel from the pig iron and the associated electrical smelting furnace.
A press hardening method including the following steps: A. the provision of a steel sheet for heat treatment being optionally coated with a zinc- or aluminum-based pre-coating, B. the flexible rolling of the steel sheet in the rolling direction so as to obtain a steel sheet having a variable thickness, C. the cutting of the rolled steel sheet to obtain a tailored rolled blank, D. the deposition of a hydrogen barrier pre-coating over a thickness from 10 to 550 nm, E. the heat treatment of the tailored rolled blank to obtain a fully austenitic microstructure in the steel, F. the transfer of the tailored rolled blank into a press tool, G. the hot-forming of the tailored rolled blank to obtain a part having a variable thickness, H. the cooling of the part having a variable thickness obtained at step G).
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 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
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 - Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
D07B 1/14 - Ropes or cables with incorporated auxiliary elements, e.g. for making, extending throughout the length of the rope or cable
G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
G01L 5/105 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means using electro-optical means
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.
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 - Introducing a fluid jet or current into the charge
F27D 11/06 - Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
69.
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 - Induction heating apparatus, other than furnaces, for specific applications
F16L 53/34 - Heating of pipes or pipe systems using electric, magnetic or electromagnetic fields, e.g. induction, dielectric or microwave heating
F27D 11/06 - Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
70.
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 - Induction heating apparatus, other than furnaces, for specific applications
F16L 53/34 - Heating of pipes or pipe systems using electric, magnetic or electromagnetic fields, e.g. induction, dielectric or microwave heating
F27D 11/06 - Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
72.
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.
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 - Introducing a fluid jet or current into the charge
F27D 11/06 - Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
76.
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.
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 8/04 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
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.
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 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
B66C 13/08 - Auxiliary devices for controlling movements of suspended loads, or for preventing cable slack for depositing loads in desired attitudes or positions
B66F 9/19 - Additional means for facilitating unloading
83.
ANNEALED AND TEMPERED STEEL SHEET, AND METHOD FOR MANUFACTURING THE SAME
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 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
B66C 13/08 - Auxiliary devices for controlling movements of suspended loads, or for preventing cable slack for depositing loads in desired attitudes or positions
B66F 9/19 - Additional means for facilitating unloading
85.
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 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
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 - Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
B62D 29/00 - Superstructures characterised by material thereof
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 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
B61D 5/00 - Tank wagons for carrying fluent materials
B61D 17/04 - Construction details of vehicle bodies with bodies of metalConstruction details of vehicle bodies with composite, e.g. metal and wood, body structures
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.
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 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
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°.
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.
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.
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 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
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.
C23F 17/00 - Multi-step processes for surface treatment of metallic material involving at least one process provided for in class and at least one process covered by subclass or or class
96.
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 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
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 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
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 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
B21B 1/22 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length
B21D 22/02 - Stamping using rigid devices or tools
B23K 26/02 - Positioning or observing the workpiece, e.g. with respect to the point of impactAligning, aiming or focusing the laser beam
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.
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 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods for sharpening or cleaning cutting tools, e.g. files
B23P 15/40 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools shearing tools
B24B 1/04 - Processes of grinding or polishingUse of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
B24C 1/10 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
B24C 5/00 - Devices or accessories for generating abrasive blasts
B24C 11/00 - Selection of abrasive materials for abrasive blasts
