429 patents
Page 5 of 22
Utility
Cold Rolled Heat Treated Steel Sheet and a Method of Manufacturing Thereof
11 May 23
A cold rolled and heat treated steel sheet having a composition with the following elements, expressed in percentage by weight:0.10%≤Carbon≤0.5%, 1%≤Manganese≤3.4%, 0.5%≤Silicon≤2.5%, 0.03%≤Aluminum≤1.5%, 0%≤Sulfur≤0.003% 0.002%≤Phosphorus≤0.02%, 0%≤Nitrogen≤0.01% and can contain one or more of the following optional elements 0.05%≤Chromium≤1%, 0.001%≤Molybdenum≤0.5%, 0.001%≤Niobium≤0.1%, 0.001%≤Titanium≤0.1%, 0.01%≤Copper≤2%, 0.01%≤Nickel≤3%, 0.0001%≤Calcium≤0.005%, 0%≤Vanadium≤0.1%, 0%≤Boron≤0.003%, 0%≤Cerium≤0.1%, 0%≤Magnesium≤0.010%, 0%≤Zirconium≤0.010% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the steel sheet having in area fraction, 10 to 30% Residual Austenite, 10 to 40% Bainite, 5% to 50% Annealed Martensite, 1% to 20% Quenched Martensite and less than 30% Tempered Martensite, wherein the cumulated amounts of Bainite and Residual Austenite is more than or equal to 25%.
Jean-Marc PIPARD, Artem ARLAZAROV
Filed: 3 Jan 23
Utility
High strength cold rolled and galvannealed steel sheet and manufacturing process thereof
11 May 23
A cold rolled and galvannealed steel sheet having a composition including, by weight percent: C 0.15-0.25%, Mn 2.4-3.5%, Si 0.30-0.90%, Cr 0.30-0.70%, Mo 0.05-0.35%, Al 0.001-0.09%, Ti 0.01-0.06, B 0.0010-0.0040%, Nb 0.01-0.05%, P≤0.020%, S≤0.010% and N≤0.008%, the remainder of the composition being iron and unavoidable impurities resulting from the smelting, and having a microstructure consisting of, in surface fraction, between 80% and 90% of martensite, the balance being ferrite and bainite.
Gregory INACIO DA ROSA, Lijia ZHAO, Dongwei FAN, Josée DRILLET
Filed: 8 Feb 21
Utility
Welded steel part used as motor vehicle part, and method of manufacturing said welded steel part
9 May 23
A welded steel part obtained by welding a first sheet with a second sheet, at least one with a coating of aluminum alloy.
Jessy Haouas
Filed: 4 Dec 18
Utility
Apparatus for measuring the internal gas pressure of a coke oven, associated coke oven system and method
4 May 23
An apparatus (20) for measuring internal gas pressure of a coke oven (31) including a guide (24) receiving at least three pressure probes (21,22,23) each connected to a pressure sensor (61,62,63), wherein, said guide (24) has a circular cross section then forming a tubular guide (24). method (70) for manufacturing the apparatus is also provided.
Matthieu LANDREAU, Yannick HERGALANT
Filed: 30 Mar 20
Utility
A Method for the Manufacturing of Liquid Metal Embrittlement Resistant Zinc Coated Steel Sheet
4 May 23
The present invention relates to a method for the manufacture of a coated steel sheet comprising the following successive steps: A. the coating of the steel sheet with a first coating consisting of nickel and having a thickness between 600 nm and 1400 nm, the steel sheet having the following composition in weight: 0.10<C<0.40%, 1.5<Mn<3.0%, 0.7<Si<3.0%, 0.05<Al<1.0%, 0.75<(Si+Al)<3.0%, and on a purely optional basis, one or more elements such as Nb≤0.5%, B≤0.010%, Cr≤1.0%, Mo≤0.50%, Ni≤1.0%, Ti≤0.5%, the remainder of the composition making up of iron and inevitable impurities resulting from the elaboration, B. the recrystallization annealing at a temperature between 820 to 1200° C., C. the coating with a second coating based on zinc not comprising nickel.
Anirban CHAKRABORTY, Hassan GHASSEMI-ARMAKI, Pascal BERTHO, Christian ALLELY
Filed: 30 Dec 22
Utility
METHOD FOR MANUFACTURING A METAL SHEET WITH A ZnAl COATING AND WITH OPTIMIZED WIPING, CORRESPONDING METAL SHEET, PART AND VEHICLE
20 Apr 23
A coated metal sheet includes a steel substrate and a coating on at least one surface of the steel substrate.
Jean-Michel Mataigne, Didier Dauchelle, Florence Bertrand
Filed: 20 Dec 22
Utility
Steel sheet for manufacturing press hardened parts, press hardened part having a combination of high strength and crash ductility, and manufacturing methods thereof
18 Apr 23
A steel sheet for the manufacture of a press hardened part is provided, having a composition of: 0.15%≤C≤0.22%, 3.5%≤Mn<4.2%, 0.001%≤Si≤1.5%, 0.020%≤Al≤0.9%, 0.001%≤Cr≤1%, 0.001%≤Mo≤0.3%, 0.001%≤Ti≤0.040%, 0.0003%≤B≤0.004%, 0.001%≤Nb≤0.060%, 0.001%≤N≤0.009%, 0.0005%≤S≤0.003%, 0.001%≤P≤0.020%.
Martin Beauvais, Alice Dumont, Alexandre Gibot, Astrid Perlade, Kangying Zhu
Filed: 1 Jun 18
Utility
Dielectric coating
13 Apr 23
A sol composition for producing dielectric layers on a metallic substrate including 10 to 30%, by weight of the sol composition, of a precursor including a trialkoxysilane, 10 to 40%, by weight of the sol composition, of titanium dioxide particles whose median size is below 500 nm, 4.5 to 36%, by weight of the sol composition, of silica particles whose particle size distribution D90 is below 100 nm, 5 to 15%, by weight of the sol composition, of a solvent capable of making the precursor miscible in water, 0.1 to 2%, by weight of the sol composition, of an acidic catalyst, the remainder being water.
Sébastien LE CRAZ
Filed: 16 Mar 21
Utility
Lamination device and process thereof
11 Apr 23
A lamination device for laminating a photovoltaic stack on a profiled metallic panel, the lamination device including a lid covered on its underside with an upper flexible pressure membrane so as to form an airtight upper chamber that may be ventilated or evacuated and/or including an upper heating device whose bottom side has a crenellated profile, the device also including a chassis covered on its top with a lower flexible pressure membrane so as to form an airtight lower chamber that may be ventilated or evacuated and/or including a lower heating device whose upper side has a cross-section which differs from the crenellated profile of the bottom side of the upper heating device, wherein the lid is capable of sealably laying on the chassis so that the cavity thus formed is airtight and may be ventilated or evacuated.
Renaud Vignal, Paul Wouters, Lionel Fourdrinier
Filed: 10 Dec 19
Utility
Process for the additive manufacturing of maraging steels
6 Apr 23
A process for manufacturing an additively-manufactured part from a metal powder having a composition having the following elements, expressed in content by weight: 6%≤Ni≤14%, 5%≤Cr≤10%, 0.5%≤Si≤2.5%, 0.5%≤Ti≤2%, C≤0.04% and optionally containing 0.5%≤Cu≤2%, the balance being Fe and unavoidable impurities resulting from the elaboration, the metal powder having a microstructure including in area fraction more than 98% of a body-centered cubic crystalline phase, the process having a step during which at least a part of the metal powder is melted in an atmosphere substantially composed of an inert gas other than Argon or of a combination of inert gases other than Argon.
Ana MARTINEZ SUAREZ, Laura MOLI, Laura DEL RIO FERNANDEZ, Nele VAN STEENBERGE, Lode DUPREZ
Filed: 20 Dec 19
Utility
Method of production of a cold rolled and heat treated steel sheet and use of such steel to produce vehicle parts
6 Apr 23
A method of production of a cold rolled and heat treated steel sheet having the following steps: providing a cold rolled steel sheet with a composition with the following elements, expressed in percent by weight: 0.10%≤carbon≤0.6%; 4%≤manganese≤20%; 5%≤aluminum≤15%; 0≤silicon≤2% aluminium+silicon+nickel≥6.5%; and optionally at least one of certain optional elements; a remainder being composed of iron and unavoidable impurities caused by processing; heating the cold rolled steel sheet up to a soaking temperature between 750 and 950° C. during less than 600 seconds, then cooling the sheet down to room temperature; and reheating the steel sheet to a soaking temperature of 150° C. to 600° C. during 10 s to 1000 h, then further cooling the sheet.
Patrick BARGES, Ian Alberto ZUAZO RODRIGUEZ
Filed: 8 Dec 22
Utility
Method for producing a high strength steel sheet having improved strength, ductility and formability
4 Apr 23
A method for producing a high strength steel sheet having a yield strength YS of at least 850 MPa, a tensile strength TS of at least 1180 MPa, a total elongation of at least 14% and a hole expansion ratio HER of at least 30%.
Rashmi Ranjan Mohanty, Hyun Jo Jun, Dongwei Fan
Filed: 3 Jul 15
Utility
Protective element for a battery pack of a hybrid or electric vehicle and process for the assembling of a reinforced battery pack
16 Mar 23
A protective element (1) named shield element for a battery pack of an electric or hybrid vehicle, wherein the protective element (1) includes a securing device (2) configured to removably secure the shield element (1) both to the battery pack and to a body (11) of the vehicle.
Nicolas SCHNEIDER, Kévin BARDIN
Filed: 15 Dec 20
Utility
Painted Steel Sheet Provided with a Zinc Coating
16 Mar 23
A steel sheet is provided with a coating having at least one layer of zinc and a top layer of paint applied by cataphoresis.
Daniel Chaleix, Daniel Jacques, Sergio Pace, Eric Silberberg, Bruno Schmitz, Xavier Vanden Eynde
Filed: 14 Nov 22
Utility
Process for manufacturing a coated metal strip of improved appearance
7 Mar 23
An installation for continuous hot-dip coating of a metal strip is provided.
Luc Diez, Jean-Michel Mataigne, Bertrand Orsal, Hubert Saint Raymond
Filed: 18 May 21
Utility
Resistance spot welding method for joining zinc coated steel sheets
28 Feb 23
A method for resistance spot welding comprising the following successive steps: —providing at least two steel sheets with thickness (th) comprised between 0.5 and 3 mm, at least one of the sheets being a zinc or zinc-alloy coated steel sheet (A) with a tensile strength (TS) higher than 800 MPa and a total elongation (TEL) such as (TS)×(TEL)>14000 MPa %, wherein the composition of the steel substrate of (A) contains, in weight: 0.05%≤C≤0.4%, 0.3%≤Mn≤8%, 0.010%≤Al≤3%, 0.010%≤Si≤2.09%, with 0.5%≤(Si+Al)≤3.5%, 0.001%≤Cr≤1.0%, 0.001%≤Mo≤0.5% and optionally: 0.005%≤Nb≤0.1%, 0.005%≤V≤0.2%, 0.005%≤Ti≤0.1%, 0.0003%≤B≤0.005%, 0.001%≤Ni≤1.0%, the remainder being Fe and unavoidable impurities, —performing resistance spot welding of the at least two steel sheets for producing a weld with an indentation depth (IDepth) on the surface of said steel sheet (A) such as: 100 μm≤(IDepth)≤18.68 (Znsol)−55.1, wherein (IDepth) is in micrometers and wherein Znsol is the solubility of Zn in the steel of sheet (A) at 750° C., in weight %.
Céline Musik, Kangying Zhu, Didier Hun, Jean-Michel Mataigne, Astrid Perlade, Renaud Frappier
Filed: 27 Feb 18
Utility
Hot-dip coated steel sheet
28 Feb 23
The present invention relates to a method for the manufacture of a hot-dip coated steel sheet coated with a zinc or an aluminum based coating including the provision of a specific steel sheet, a recrystallization annealing with specific heating, soaking and cooling sub-steps using an inert gas and a hot-dip coating; the hot dip coated steel sheet and the use of the hot-dip coated steel sheet.
David Zapico Alvarez, Florence Bertrand, Joris Giroux
Filed: 19 Oct 18
Utility
Steel sheet having excellent toughness, ductility and strength, and manufacturing method thereof
28 Feb 23
A cold-rolled and heat treated steel sheet, has a composition comprising 0.1%≤C≤0.4%, 3.5%≤Mn≤8.0%, 0.1%≤Si≤1.5%, Al≤3%, Mo≤0.5%, Cr≤1%, Nb≤0.1%, Ti≤0.1%, V≤0.2%, B≤0.004%, 0.002%≤N≤0.013%, S≤0.003%, P≤0.015%.
Coralie Jung, Astrid Perlade, Kangying Zhu, Frédéric Kegel
Filed: 18 Dec 18
Utility
Hot Rolled and Steel Sheet and a Method of Manufacturing Thereof
23 Feb 23
A hot rolled steel sheet having a composition including the following elements, 0.18%≤Carbon≤0.3%, 1.8%≤Manganese≤4.5%. 0.8%≤Silicon≤2%,0 001%≤Aluminum ≤0.2%, 0.1%≤Molybdenum≤1%, 0.001%≤Titanium≤0.2%, 0.0001%≤Boron≤0.01%, 0%≤Phosphorus≤0.09%, 0%≤Sulfur≤0.09%.,0%≤Nitrogen≤0.09%, 0%≤Chromium≤0.5%, 0%≤Niobium≤0.1%, 0%≤Vanadium≤0.5%, 0%≤Nickel≤1%, 0%≤Copper≤1%, 0%≤Calcium≤0.005%, 0%≤Magnesium≤0.0010% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet including in area fraction, of at least 70% martensite, 8% to 25% residual austenite, wherein the shape factor of the residual austenite is between 4 and 12.
Dorien DE KNIJF, Lode DUPREZ, Koenraad THEUWISSEN, Tom WATERSCHOOT
Filed: 15 Dec 20
Utility
Metal powder for additive manufacturing
23 Feb 23
A metal powder for additive manufacturing having a composition including the following elements, expressed in content by weight: 0.01%≤C≤0.2%, 4.6%≤Ti≤10%, (0.45×Ti)−0.22%≤B≤(0.45×Ti)+0.70%, S≤0.03%, P≤0.04%, N≤0.05%, O≤0.05% and optionally containing: Si≤1.5%, Mn≤3%, Al≤1.5%, Ni≤1%, Mo≤1%, Cr≤3%, Cu≤1%, Nb≤0.1%, V≤0.5% and including eutectic precipitates of TiB2 and Fe2B, the balance being Fe and unavoidable impurities resulting from the elaboration, the volume percentage of TiB2 being equal or more than 10% and the mean bulk density of the powder being 7.50 g/cm3 or less.
Rosalia REMENTERIA FERNANDEZ, Frédéric BONNET, Maria Elena CORRAL CORRALES, Carla OBERBILLIG
Filed: 14 Dec 20