logo

For the Inventor, By the Inventor

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.:

US 10167530 B1

PDFFull Text
Date of Patent:
Jan. 01, 2019

Filed:

Jul. 16, 2014

Method of manufacturing hot press formed part, and hot press formed part

Applicant:

Jfe Steel Corporation, Tokyo, JP;

Inventors:

Tatsuya Nakagaito, Tokyo, JP;

Yuichi Tokita, Tokyo, JP;

Toru Minote, Tokyo, JP;

Yoshikiyo Tamai, Tokyo, JP;

Assignee:

JFE Steel Corporation, Tokyo, JP;

Attorney:

RatnerPrestia

Primary Examiner:

Cam N Nguyen

Int. Cl.
CPC ...
C21D 9/00 (2006.01); C21D 1/18 (2006.01); C21D 1/60 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); B32B 15/01 (2006.01); C22C 18/00 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/32 (2006.01); C22C 38/60 (2006.01); C23C 2/06 (2006.01); C23C 2/28 (2006.01); C23C 2/40 (2006.01); C21D 9/46 (2006.01); C21D 1/673 (2006.01);
U.S. Cl.
CPC ...
C21D 9/0068 (2013.01); B32B 15/013 (2013.01); C21D 1/18 (2013.01); C21D 1/60 (2013.01); C21D 6/002 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/0205 (2013.01); C21D 8/0221 (2013.01); C22C 18/00 (2013.01); C22C 38/00 (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 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/32 (2013.01); C22C 38/60 (2013.01); C23C 2/06 (2013.01); C23C 2/28 (2013.01); C23C 2/405 (2013.01); C21D 1/673 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C21D 9/46 (2013.01);
Abstract

A method of manufacturing a hot press formed part by hot pressing a coated steel sheet that is obtained by forming a Zn-based coating layer on a surface of a steel sheet includes: heating the coated steel sheet to a temperature range of 750° C. or more and 1000° C. or less; cooling a surface of the coated steel sheet; and hot press forming the coated steel sheet under a condition that a surface temperature of the coated steel sheet is 400° C. or less and an average temperature of the coated steel sheet is 500° C. or more or a temperature of a center position of the coated steel sheet in a thickness direction is 530° C. or more.

Find Patent Forward Citations

Loading…