公开(公告)号：US20190119776A1

公开(公告)日：2019-04-25

申请号：US16094849

申请日：2017-04-18

Applicant: ArcelorMittal

Inventor： Jonas STAUDTE ,  Hubert SAINT-RAYMOND ,  Michel Roger Louis BORDIGNON ,  Thierry HOURMAN ,  Pauline BRIAULT

IPC: C21D9/56 ,  C21D9/46 ,  C21D9/573 ,  C23C2/02 ,  C23C2/06 ,  C23C2/40 ,  C23F17/00

Abstract: A method for producing a metallic coated steel sheet is provided. The method includes continuously annealing a steel sheet in a continuous annealing furnace and hot dip coating the steel sheet.

公开(公告)号：US20250043407A1

公开(公告)日：2025-02-06

申请号：US18710776

申请日：2022-10-17

Applicant: ArcelorMittal

Inventor： Astrid PERLADE ,  Kangying ZHU ,  Jean-Michel MATAIGNE ,  Jonas STAUDTE

IPC: C23C2/02 ,  B32B15/01 ,  C21D3/04 ,  C21D9/46 ,  C22C38/02 ,  C22C38/06 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C23C2/06

Abstract: A steel sheet containing manganese from 3.0 to 6.0% in weight which has both a good coatability by liquid zinc and a good LME resistance. The present invention also aims to make available an easy to implement method to obtain the steel sheet and an assembly which does not have LME issues after spot-welding.

公开(公告)号：US20230272516A1

公开(公告)日：2023-08-31

申请号：US18142197

申请日：2023-05-02

Applicant: ArcelorMittal

Inventor： Michel BORDIGNON ,  Jonas STAUDTE

IPC: C23C2/02 ,  C21D1/26 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C2/06 ,  C25D3/30

CPC classification number: C23C2/02 ,  C21D1/26 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C2/06 ,  C25D3/30

Abstract: A hot-dip coated steel substrate coated with a layer of Sn directly topped by a zinc or an aluminum based coating is provided, the steel substrate having the following chemical composition in weight percent:



0.10≤C≤0.4%,
1.2≤Mn≤6.0%,
0.3≤Si≤2.5%,
Al

公开(公告)号：US20170260599A1

公开(公告)日：2017-09-14

申请号：US15609841

申请日：2017-05-31

Applicant: ArcelorMittal

Inventor： Juan David PUERTA VELASQUEZ ,  Jonas STAUDTE ,  Pascal DRILLET

IPC: C21D8/02 ,  C23C2/28 ,  C22C38/32 ,  C22C38/28 ,  C23C2/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D6/00 ,  C23C2/12 ,  B32B15/01 ,  C22C38/06

CPC classification number: C21D8/0278 ,  B32B15/012 ,  B32B15/013 ,  C21D1/34 ,  C21D1/52 ,  C21D1/673 ,  C21D1/74 ,  C21D1/76 ,  C21D3/04 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0236 ,  C21D8/0257 ,  C21D8/0457 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  C22C38/32 ,  C23C2/02 ,  C23C2/06 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40

Abstract: A cold-rolled sheet is provided. The cold-rolled sheet includes a steel substrate with a carbon content C0 between 0.07% and 0.5%, expressed by weight, and a metal pre-coating on at least the two principal faces of the steel substrate. The substrate has a decarburized area on the surface of each of the two principal faces. The depth p50% of the decarburized area is between 6 and 30 micrometers, and p50% is the depth at which the carbon content is equal to 50% of the content C0. The sheet does not contain a layer of iron oxide between the substrate and the metal pre-coating.

公开(公告)号：US20160304980A1

公开(公告)日：2016-10-20

申请号：US15102118

申请日：2013-12-10

Applicant: ARCELORMITTAL

Inventor： John ROTOLE ,  Jonas STAUDTE ,  Jean-Michel MATAIGNE

IPC: C21D9/46 ,  C23C2/40 ,  C23C2/28 ,  C22C38/38 ,  C22C38/32 ,  C22C38/28 ,  C22C38/26 ,  C22C38/12 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C23C8/18 ,  C23C8/14 ,  C21D6/00 ,  C21D1/26 ,  C23C2/06

CPC classification number: C21D9/46 ,  C21D1/26 ,  C21D1/68 ,  C21D1/76 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0278 ,  C21D9/56 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C23C2/02 ,  C23C2/06 ,  C23C2/28 ,  C23C2/40 ,  C23C8/14 ,  C23C8/18 ,  C23C8/80

Abstract: A method of annealing of steel sheets is provided which includes a first step consisting in fully oxidizing the surface of such steel sheet thus creating a fully oxided surface layer, a second step consisting in selectively oxidizing elements other than iron of such steel, in an area extending under said fully oxided layer, thus creating a selectively oxided internal layer and a third step consisting in fully reducing said fully oxided surface layer.

Abstract translation: 提供了一种退火钢板的方法，该方法包括第一步骤，该方法包括使这种钢板的表面完全氧化，从而形成完全氧化的表面层，第二步骤包括在这种钢的铁中选择性地氧化除铁以外的元素 在所述完全氧化层下延伸，从而产生选择性氧化的内层，第三步包括完全还原所述完全氧化的表面层。