Invention Grant
- Patent Title: Method of producing press-hardened and coated steel parts at a high productivity rate
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Application No.: US15611153Application Date: 2017-06-01
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Publication No.: US10648055B2Publication Date: 2020-05-12
- Inventor: Michel Sanadres , Christine Dessain
- Applicant: ArcelorMittal
- Applicant Address: LU Luxembourg
- Assignee: ArcelorMittal
- Current Assignee: ArcelorMittal
- Current Assignee Address: LU Luxembourg
- Agency: Davidson, Davidson & Kappel, LLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@f872085
- Main IPC: C21D9/50
- IPC: C21D9/50 ; C21D1/673 ; C09D5/00 ; C09D5/32 ; C23C2/12 ; C23C2/26 ; C23C2/28 ; C09D167/02 ; C09D163/00 ; C09D133/02 ; C09D123/12 ; C09D123/06 ; C08K3/04 ; B21D22/02 ; C22C38/32 ; C22C38/28 ; C22C38/06 ; C22C38/04 ; C22C38/00 ; C22C38/02 ; C23F17/00 ; C21D9/46 ; C21D6/00 ; C21D1/22 ; C21D8/02 ; C23C2/40 ; B21D35/00
Abstract:
A sheet or blank is provided which includes a substrate and pre-coating on at least one face of the substrate. A polymerized layer overlies at least a part of the pre-coating and has a thickness from 2 μm to 30 μm, a nitrogen content of less than 1% by weight, carbon pigments in a quantity from 3 to 30% by weight and does not include a polymer with silicon. A welded blank, part and fabrication methods are also provided.
Public/Granted literature
- US20170268078A1 METHOD OF PRODUCING PRESS-HARDENED AND COATED STEEL PARTS AT A HIGH PRODUCTIVITY RATE Public/Granted day:2017-09-21
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