The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 2015
Filed:
Dec. 01, 2011
Applicants:
Jun Maki, Tokyo, JP;
Masao Kurosaki, Tokyo, JP;
Seiji Sugiyama, Tokyo, JP;
Inventors:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 2/12 (2006.01); B21D 35/00 (2006.01); C23C 2/28 (2006.01); C23C 26/00 (2006.01); C23C 28/00 (2006.01); C21D 8/04 (2006.01);
U.S. Cl.
CPC ...
C23C 2/12 (2013.01); Y10T 428/256 (2013.01); Y10T 428/2962 (2013.01); C21D 8/0405 (2013.01); C21D 2251/02 (2013.01); B21D 35/007 (2013.01); C23C 2/28 (2013.01); C23C 26/00 (2013.01); C23C 28/321 (2013.01); C23C 28/34 (2013.01); C23C 28/345 (2013.01);
Abstract
In a plated steel sheet having an aluminum-plating layer comprising at least Al formed on one side or both sides of the steel sheet, there is provided a plated steel sheet which, owing to the presence of a surface coating layer containing a compound having wurtzite crystal structure on the aluminum-plating layer, has excellent lubricity, prevents the plating thickness from becoming uneven during heating, and can improve formability and productivity in hot stamping, and a method of hot-stamping the plated steel sheet.