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公开(公告)号：WO2018162937A1
公开(公告)日：2018-09-13
申请号：PCT/IB2017/000218
申请日：2017-03-07
Applicant: ARCELORMITTAL , UNIVERSITE DE NANTES
Inventor： MUSIK, Céline , ZHU, Kangying , HUIN, Didier , MATAIGNE, Jean-Michel , PERLADE, Astrid , FRAPPIER, Renaud
IPC: B23K11/11 , C23C2/06 , C22C38/02 , C22C38/06 , C22C38/18 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/58
Abstract: 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 3mm, 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)x(TEL)>14000MPa%, 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+AI) ≤ 3.5%, 0.001 % ≤ Cr ≤ 1.0%, 0.001 % ≤ Mo ≤ 0.5% and optionally: 0.005% ≤ Nb ≤ 0.1 %, 0.005% sol )- 55.1, wherein (IDepth) is in micrometers and wherein Zn sol is the solubility of Zn in the steel of sheet (A) at 750°C, in weight %.
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公开(公告)号：WO2022130124A1
公开(公告)日：2022-06-23
申请号：PCT/IB2021/061436
申请日：2021-12-08
Applicant: ARCELORMITTAL
Inventor： BERTRAND, Florence , HUIN, Didier , SAINT-RAYMOND, Hubert
IPC: C21D8/02 , C21D8/04 , C21D9/56 , C21D9/573 , C21D9/46 , C21D9/48 , C21D1/34 , C21D1/52 , C21D1/76 , C21D8/12 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/02 , C23C2/06 , C23C2/12 , F27B9/28
Abstract: The invention relates to a method for the manufacture of a steel sheet, in a device comprising a pre-heating section, a heating section having a maximal heating rate and a soaking section comprising a calibrating step, a recrystallization annealing and a soaking and a coating step. The calibration step permits to define a lower dew point permitting to achieve a predefined quality target.
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公开(公告)号：WO2022129989A1
公开(公告)日：2022-06-23
申请号：PCT/IB2020/061960
申请日：2020-12-15
Applicant: ARCELORMITTAL
Inventor： SAINT-RAYMOND, Hubert , BERTRAND, Florence , HUIN, Didier
IPC: C21D8/02 , C21D8/04 , C21D9/56 , C21D9/573 , C21D9/46 , C21D9/48 , C21D1/34 , C21D1/52 , C21D1/76 , C21D8/12 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/00 , F27B17/00
Abstract: The invention relates to a method for the manufacture of a steel sheet, in a device comprising a pre-heating section, a heating section having a maximal heating rate and a soaking section comprising a calibrating step, a recrystallization annealing and a soaking and a coating step. The calibration step permits to define a lower dew point permitting to achieve a predefined quality target.
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公开(公告)号：EP4263883A1
公开(公告)日：2023-10-25
申请号：EP21819611.1
申请日：2021-12-08
Applicant: ArcelorMittal
Inventor： BERTRAND, Florence , HUIN, Didier , SAINT-RAYMOND, Hubert
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公开(公告)号：EP3645182A1
公开(公告)日：2020-05-06
申请号：EP17737645.6
申请日：2017-06-26
Applicant: Arcelormittal
Inventor： JACOLOT, Ronan , HUIN, Didier , MORETTO, Christian , CORSELLO, Daniele
IPC: B21B37/76
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Patent Agency Ranking
公开(公告)号：EP3592497A1
公开(公告)日：2020-01-15
申请号：EP18709083.2
申请日：2018-02-27
Applicant: ArcelorMittal , Université de Nantes
Inventor： MUSIK, Céline , ZHU, Kangying , HUIN, Didier , MATAIGNE, Jean-Michel , PERLADE, Astrid , FRAPPIER, Renaud
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公开(公告)号：WO2019002910A1
公开(公告)日：2019-01-03
申请号：PCT/IB2017/053804
申请日：2017-06-26
Applicant: ARCELORMITTAL
Inventor： JACOLOT, Ronan , HUIN, Didier , MORETTO, Christian , CORSELLO, Daniele
IPC: B21B37/76
Abstract: This method for determining the temperature of a metal strip (1 ) inside a cooling apparatus (4) of a hot rolling installation is implemented by an electronic device (12). This method includes acquiring a temperature measure of a strip portion at a current time instant; estimating, at the current time instant, a heat flux extracted from the strip portion inside the cooling apparatus according to a thermal model, and computing a strip portion temperature at a next time instant from the acquired temperature measure and the estimated extracted heat flux. The thermal model models an air cooling of the strip portion, a coolant header cooling of the strip portion by a coolant header and a remaining coolant cooling of the strip portion, wherein for the coolant header cooling the model models both an impingement cooling of the strip portion and a parallel flow cooling of the strip portion.
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公开(公告)号：WO2018163017A1
公开(公告)日：2018-09-13
申请号：PCT/IB2018/051239
申请日：2018-02-27
Applicant: ARCELORMITTAL , UNIVERSITE DE NANTES
Inventor： MUSIK, Céline , ZHU, Kangying , HUIN, Didier , MATAIGNE, Jean-Michel , PERLADE, Astrid , FRAPPIER, Renaud
IPC: B23K11/11 , C23C2/06 , C22C38/02 , C22C38/06 , C22C38/18 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/58
Abstract: 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 3mm, 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)x(TEL)>14000MPa%, 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 (Zn sol )- 55.1, wherein (IDepth) is in micrometers and wherein Zn sol is the solubility of Zn in the steel of sheet (A) at 750°C, in weight %.
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9.发明申请PROCESS FOR MANUFACTURING A GALVANIZED OR A GALVANNEALED STEEL SHEET BY DFF REGULATION 审中-公开通过DFF法规制造GALVANIZED或GALVANNEALE钢板的工艺
公开(公告)号：WO2009004426A1
公开(公告)日：2009-01-08
申请号：PCT/IB2008/001494
申请日：2008-06-11
Applicant: ARCELORMITTAL FRANCE , BERTRAND, Florence , HUIN, Didier , SAINT-RAYMOND, Hubert
Inventor： BERTRAND, Florence , HUIN, Didier , SAINT-RAYMOND, Hubert
CPC classification number: C23C2/40 , C21D9/46 , C21D9/561 , C22C1/002 , C23C2/02 , C23C2/06 , C23C2/28 , Y10T428/12799
Abstract: The invention deals with a process for manufacturing a hot-dip galvanized or galvannealed steel sheet having a TRIP microstructure, said process comprising the steps consisting in: - providing a steel sheet whose composition comprises, by weight: 0.01 ≤ C ≤ 0.22%, 0.50 ≤ Mn ≤ 2.0%, 0.2 ≤ Si ≤ 2.0%, 0.005 ≤ Al ≤ 2.0%, Mo
Abstract translation: 本发明涉及制造具有TRIP微观结构的热镀锌或合金化热镀锌钢板的方法，所述方法包括以下步骤： - 提供一种钢板，其组成包含：0.01 = C = 0.22％，0.50 = Mn = 2.0％，0.2 = Si = 2.0％，0.005 = Al = 2.0％，Mo <1.0％，Cr = 1.0％，P <0.02％，Ti = 0.20％，V = 0.40％，Ni = 1.0％ Nb = 0.20％，组成为铁的余量和冶炼产生的不可避免的杂质，在空气与燃料比为0.80〜0.95的直接火焰炉中氧化所述钢板， 使得在钢板的表面上形成厚度为0.05〜0.2μm的氧化铁层，形成Si和/或Mn和/或Al的内部氧化物，将所述氧化钢板还原成 减少率为0.001〜0.010μm/ s，为了实现氧化铁层的还原， - 热浸镀锌所述减少 鳗鱼片形成镀锌钢板，并且任选地对所述热浸镀钢板进行合金化处理以形成合金化热浸镀锌钢板。
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10.发明公开PROCESS FOR MANUFACTURING A GALVANIZED OR A GALVANNEALED STEEL SHEET BY DFF REGULATION 审中-公开法锌或锌生产和然后进行热处理钢板经DFF调节
公开(公告)号：EP2171117A1
公开(公告)日：2010-04-07
申请号：EP08762830.1
申请日：2008-06-11
Applicant: ArcelorMittal France
Inventor： BERTRAND, Florence , HUIN, Didier , SAINT-RAYMOND, Hubert
CPC classification number: C23C2/40 , C21D9/46 , C21D9/561 , C22C1/002 , C23C2/02 , C23C2/06 , C23C2/28 , Y10T428/12799
Abstract: The invention deals with a process for manufacturing a hot-dip galvanized or galvannealed steel sheet having a TRIP microstructure, said process comprising the steps consisting in: - providing a steel sheet whose composition comprises, by weight: 0.01 ≤ C ≤ 0.22%, 0.50 ≤ Mn ≤ 2.0%, 0.2 ≤ Si ≤ 2.0%, 0.005 ≤ Al ≤ 2.0%, Mo
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