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:
Nov. 28, 2017
Filed:
Mar. 19, 2012
Applicants:
Yoshimichi Hino, Tokyo, JP;
Gentaro Takeda, Tokyo, JP;
Inventors:
Yoshimichi Hino, Tokyo, JP;
Gentaro Takeda, Tokyo, JP;
Assignee:
JFE Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 9/46 (2006.01); C21D 8/04 (2006.01); C21D 1/63 (2006.01); C21D 1/18 (2006.01); C21D 1/60 (2006.01); C22C 38/00 (2006.01); C21D 9/573 (2006.01); C21D 11/00 (2006.01); C21D 1/26 (2006.01); C21D 1/667 (2006.01); C21D 9/00 (2006.01);
U.S. Cl.
CPC ...
C21D 9/46 (2013.01); C21D 1/18 (2013.01); C21D 1/26 (2013.01); C21D 1/60 (2013.01); C21D 1/63 (2013.01); C21D 1/667 (2013.01); C21D 8/0436 (2013.01); C21D 9/573 (2013.01); C21D 9/5735 (2013.01); C21D 11/005 (2013.01); C22C 38/00 (2013.01); C21D 9/0062 (2013.01); C21D 2221/00 (2013.01); C21D 2221/02 (2013.01);
Abstract
A method for manufacturing a high-strength cold-rolled steel sheet includes a temperature distribution forming step of forming a temperature distribution in a width direction of a steel sheet such that a temperature of the steel sheet increases from an end of the steel sheet in the width direction toward a center part of the steel sheet in the width direction, and a water quenching step of performing water quenching treatment on the steel sheet by immersing, in cooling water, the steel sheet on which the temperature distribution is formed in the width direction.