Invention Application
- Patent Title: METHOD FOR MANUFACTURING A METAL SHEET WITH A ZnAl COATING AND WITH OPTIMIZED WIPING, CORRESPONDING METAL SHEET, PART AND VEHICLE
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Application No.: US18068904Application Date: 2022-12-20
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Publication No.: US20230119030A1Publication Date: 2023-04-20
- Inventor: Jean-Michel Mataigne , Didier Dauchelle , Florence Bertrand
- Applicant: ArcelorMittal
- Applicant Address: LU LUXEMBOURG
- Assignee: ArcelorMittal
- Current Assignee: ArcelorMittal
- Current Assignee Address: LU LUXEMBOURG
- Priority: FRPCT/FR2013/050479 20130306
- Main IPC: C23C2/06
- IPC: C23C2/06 ; C23C30/00 ; C23C2/40 ; C23C2/04 ; B32B15/20 ; B32B15/04 ; C23C2/20 ; C23C2/26 ; C21D8/02 ; C21D7/02 ; C21D8/04 ; C21D7/13 ; C21D7/00 ; C21D8/00 ; C21D7/04 ; B32B15/18 ; B32B15/01 ; C23C2/02 ; C23C2/16 ; C23C2/34
Abstract:
A coated metal sheet includes a steel substrate and a coating on at least one surface of the steel 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 coated metal sheet was subjected to a skin pass operation after coating. An outer surface of the metal coating has a waviness Wa0.8 of less than or equal to 0.55 μm.
Information query
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