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.

Date of Patent:
Oct. 09, 2018

Filed:

May. 13, 2014
Applicant:

Jfe Steel Corporation, Tokyo, JP;

Inventors:

Seiji Nakajima, Tokyo, JP;

Minako Morimoto, Tokyo, JP;

Satoru Ando, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/18 (2006.01); B32B 15/01 (2006.01); C21D 7/13 (2006.01); C21D 1/673 (2006.01); C25D 5/14 (2006.01); C25D 5/50 (2006.01); C25D 7/06 (2006.01); C22C 18/00 (2006.01); C22C 19/03 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/28 (2006.01); C22C 38/32 (2006.01); C22C 38/60 (2006.01); C21D 1/00 (2006.01); C25D 3/12 (2006.01); C25D 3/56 (2006.01);
U.S. Cl.
CPC ...
B32B 15/015 (2013.01); C21D 1/673 (2013.01); C21D 7/13 (2013.01); C22C 18/00 (2013.01); C22C 19/03 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/28 (2013.01); C22C 38/32 (2013.01); C22C 38/60 (2013.01); C25D 5/14 (2013.01); C25D 5/50 (2013.01); C25D 7/0614 (2013.01); C21D 1/00 (2013.01); C25D 3/12 (2013.01); C25D 3/56 (2013.01); C25D 3/565 (2013.01); Y10T 428/12799 (2015.01); Y10T 428/12937 (2015.01); Y10T 428/12944 (2015.01);
Abstract

A steel sheet for hot press-forming having a first coating layer on a surface of the steel sheet, containing 60% or more by mass Ni and a remainder composed of Zn and incidental impurities, a coating mass thereof being more than 5 g/mand 50 g/mor less per side, and a second coating layer on the first coating layer, containing 10% to 25% by mass Ni and a remainder composed of Zn and incidental impurities, a coating mass thereof being 10 to 90 g/mper side.


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