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公开(公告)号：US20200340124A1
公开(公告)日：2020-10-29
申请号：US16754538
申请日：2018-10-19
Applicant: ArcelorMittal
Inventor： Pascal BERTHO , Anirban CHAKRABORTY , Hassan GHASSEMI-ARMAKI , Christian ALLELY , Tiago MACHADO AMORIM , Daniel CHALEIX
Abstract: Method for the manufacture of a coated steel sheet including the following successive steps A. the provision of an annealed steel sheet having the following chemical composition in weight: 0.10
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公开(公告)号：US20210395853A1
公开(公告)日：2021-12-23
申请号：US17463128
申请日：2021-08-31
Applicant: ArcelorMittal
Inventor： Tiago MACHADO AMORIM , Christian ALLELY , Raisa GRIGORIEVA , David DUSSAUSSOIS
IPC: C21D9/46 , B32B15/01 , C23C2/12 , C23C2/28 , C22C21/10 , C23C2/40 , C23C2/26 , C21D1/673 , C22C21/02 , B21D22/02 , C21D6/00 , C21D8/00
Abstract: A hot formed pre-coated steel part includes a steel sheet precoated with a metallic coating and hot formed, the coating including: 2.0 to 24.0% by weight of zinc; 1.1 to 7.0% by weight of silicon; optionally from 0.5 to 3.0% by weight of magnesium when the amount of silicon is between 1.1 and 4.0%, and optionally additional elements chosen from Pb, Ni, Zr or Hf, a content by weight of each additional element being less than 0.3% by weight, a balance being aluminum, unavoidable impurities and residual elements resulting from feeding ingots or from a passage of the steel sheet in a molten bath; and a ratio Al/Zn by weight greater than 2.9, where a microstructure in the steel after said hot forming being martensitic or martensitic-bainitic or made of at least 75% of equiaxed ferrite, 5 to 20% of martensite and bainite in an amount less than or equal to 10%.
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公开(公告)号：US20180216218A1
公开(公告)日：2018-08-02
申请号：US15748262
申请日：2016-07-29
Applicant: ARCELORMITTAL
Inventor： Tiago MACHADO AMORIM , Christian ALLELY , Grégory LEUILLIER
CPC classification number: C23C2/12 , C21D1/673 , C21D8/0257 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C23C2/06 , C23C2/28
Abstract: A method for the manufacture of a hardened part coated with a phosphatable coating is provided. The method includes providing a steel sheet pre-coated with a metallic coating including from 4.0 to 20.0% by weight of zinc, from 1.0 to 3.5% by weight of silicon, optionally from 1.0 to 4.0% by weight of magnesium, and optionally additional elements chosen from Pb, Ni, Zr, or Hf, the content by weight of each additional element being less than 0.3% by weight, the balance being aluminum and unavoidable impurities and residuals elements. The steel sheet is cut to obtain a blank, the blank is thermally treated at a temperature between 840 and 950° C. to obtain a fully austenitic microstructure in the steel, the blank is transferred into a press tool and hot-formed to obtain a part. The part is cooled to obtain a martensitic or martensitic-bainitic microstructure or made of at least 75% of equiaxed ferrite, from 5 to 20% of martensite and bainite in amount less than or equal to 10%.
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公开(公告)号：US20240283078A1
公开(公告)日：2024-08-22
申请号：US18292729
申请日：2022-06-21
Applicant: ArcelorMittal
Inventor： Pascale SANZEY , Tiago MACHADO AMORIM , Tarek KRIM , Laurence DOSDAT , Aurélie BESSON
IPC: H01M50/282 , H01M50/276
CPC classification number: H01M50/282 , H01M50/276 , H01M2220/20
Abstract: A top cover of battery pack including a metallic coated steel sheet wherein the metallic coating is based on zinc and includes aluminum, magnesium and unavoidable impurities.
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公开(公告)号：US20220298618A1
公开(公告)日：2022-09-22
申请号：US17834335
申请日：2022-06-07
Applicant: ArcelorMittal
Inventor： Christian ALLELY , Tiago MACHADO AMORIM , Joost DE STRYCKER , Krista Godelieve Oscar VAN DEN BERGH
IPC: C23C2/12 , C23C2/00 , C23C2/28 , C21D8/00 , C22C38/00 , B32B15/18 , B32B15/20 , B32B15/01 , B32B15/04 , C22C21/04 , C23C30/00 , C23C28/02 , C22C21/02 , C22C21/18 , C23C2/04 , C23C2/06 , C22C21/00 , C22C21/08 , C23C2/02 , C22C21/14 , C22C21/06 , C23C2/26 , C23C2/34 , C22C21/16 , C22C21/10 , C23C2/40
Abstract: A steel sheet with a metallic coating is provided. A composition of the metallic coating includes from 2.0 to 24.0% by weight of zinc, from 7.1 to 12.0% by weight of silicon, optionally from 1.1 to 8.0% by weight of magnesium, and optionally additional elements chosen from Pb, Ni, Zr, or Hf. The content by weight of each additional element is less than 0.3%. A balance of the composition is aluminum, unavoidable impurities and residual elements. A ratio Al/Zn is from 4.0 to 6.0.
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Patent Agency Ranking
公开(公告)号：US20210395855A1
公开(公告)日：2021-12-23
申请号：US17463187
申请日：2021-08-31
Applicant: ArcelorMittal
Inventor： Tiago MACHADO AMORIM , Christian ALLELY , Raisa GRIGORIEVA , David DUSSAUSSOIS
IPC: C21D9/46 , B32B15/01 , C23C2/12 , C23C2/28 , C22C21/10 , C23C2/40 , C23C2/26 , C21D1/673 , C22C21/02 , B21D22/02 , C21D6/00 , C21D8/00
Abstract: A method for manufacture of a pre-coated steel sheet includes providing a steel sheet, coating the steel sheet with a metallic coating, the metallic coating including: 2.0 to 24.0% by weight of zinc; 1.1 to 7.0% by weight of silicon; optionally from 0.5 to 3.0% by weight of magnesium when the amount of silicon is between 1.1 and 4.0%, and optionally additional elements chosen from Pb, Ni, Zr or Hf, a content by weight of each additional element being less than 0.3% by weight, a balance of the metallic coating being aluminum, unavoidable impurities and residual elements resulting from feeding ingots or from a passage of the steel sheet in a molten bath; a ratio Al/Zn by weight greater than 2.9, and wherein the metallic coating does not include In and the metallic coating does not include Sn
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公开(公告)号：US20210395854A1
公开(公告)日：2021-12-23
申请号：US17463142
申请日：2021-08-31
Applicant: ArcelorMittal
Inventor： Tiago MACHADO AMORIM , Christian ALLELY , Raisa GRIGORIEVA , David DUSSAUSSOIS
IPC: C21D9/46 , B32B15/01 , C23C2/12 , C23C2/28 , C22C21/10 , C23C2/40 , C23C2/26 , C21D1/673 , C22C21/02 , B21D22/02 , C21D6/00 , C21D8/00
Abstract: A pre-coated steel sheet includes a steel sheet precoated with a metallic coating, the coating including: 2.0 to 24.0% by weight of zinc; 1.1 to 7.0% by weight of silicon; optionally from 0.5 to 3.0% by weight of magnesium when the amount of silicon is between 1.1 and 4.0%, and optionally additional elements chosen from Pb, Ni, Zr or Hf, a content by weight of each additional element being less than 0.3% by weight, a balance being aluminum, unavoidable impurities and residual elements resulting from feeding ingots or from a passage of the steel sheet in a molten bath; a ratio Al/Zn by weight greater than 2.9, wherein the coating does not include In and the coating does not include Sn.
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公开(公告)号：US20210308784A1
公开(公告)日：2021-10-07
申请号：US17269322
申请日：2019-09-09
Applicant: ArcelorMittal
Inventor： Tiago MACHADO AMORIM , Stéphanie MICHAUT , Jean-Marie HELMER , Pascal BERTHO
Abstract: An assembly of at least two metallic substrates spot welded together through at least one spot welded joint is provided, a method for the manufacture of the assembly is also provided, such method including two steps and the use of this assembly for the manufacture of automotive vehicle.
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公开(公告)号：US20250118821A1
公开(公告)日：2025-04-10
申请号：US18292724
申请日：2022-06-21
Applicant: ArcelorMittal
Inventor： Astrid GREGOIRE , Christian ALLELY , Tiago MACHADO AMORIM , Matthieu AMBLARD
IPC: H01M10/613 , C23C2/12 , H01M10/625 , H01M50/204
Abstract: A cooling system of a battery pack including a metallic coated steel sheet wherein the metallic coating is based on aluminum and includes optionally silicon and unavoidable impurities.
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公开(公告)号：US20250087817A1
公开(公告)日：2025-03-13
申请号：US18292737
申请日：2022-06-24
Applicant: ArcelorMittal
Inventor： Pascale SANZEY , Tiago MACHADO AMORIM , Tarek KRIM , Laurence DOSDAT , Aurélie BESSON
IPC: H01M50/276 , H01M50/249
Abstract: A top cover of battery pack including a metallic coated steel sheet wherein the metallic coating is based on aluminum and includes optionally silicon and unavoidable impurities.
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