Invention Grant
- Patent Title: Method of manufacturing hot press formed part, and hot press formed part
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Application No.: US14914392Application Date: 2014-07-16
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Publication No.: US10167530B2Publication Date: 2019-01-01
- Inventor: Tatsuya Nakagaito , Yuichi Tokita , Toru Minote , Yoshikiyo Tamai
- Applicant: JFE STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: JFE Steel Corporation
- Current Assignee: JFE Steel Corporation
- Current Assignee Address: JP Tokyo
- Agency: RatnerPrestia
- Priority: JP2013-177596 20130829
- International Application: PCT/JP2014/069498 WO 20140716
- International Announcement: WO2015/029653 WO 20150305
- Main IPC: C21D9/00
- IPC: C21D9/00 ; C21D1/18 ; C21D1/60 ; C21D6/00 ; C21D8/02 ; B32B15/01 ; C22C18/00 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/12 ; C22C38/14 ; C22C38/32 ; C22C38/60 ; C23C2/06 ; C23C2/28 ; C23C2/40 ; C21D9/46 ; C21D1/673
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.
Public/Granted literature
- US20160208355A1 METHOD OF MANUFACTURING HOT PRESS FORMED PART, AND HOT PRESS FORMED PART Public/Granted day:2016-07-21
Information query
