Invention Grant
- Patent Title: Steel sheet for hot pressing and method of manufacturing hot-pressed part using steel sheet for hot pressing
- Patent Title (中): 用于热压的钢板和使用热压钢板制造热压部件的方法
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Application No.: US13813328Application Date: 2011-08-02
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Publication No.: US09023488B2Publication Date: 2015-05-05
- Inventor: Seiji Nakajima , Tatsuya Miyoshi , Hiroki Nakamaru
- Applicant: Seiji Nakajima , Tatsuya Miyoshi , Hiroki Nakamaru
- Applicant Address: JP Tokyo
- Assignee: JFE Steel Corporation
- Current Assignee: JFE Steel Corporation
- Current Assignee Address: JP Tokyo
- Agency: RatnerPrestia
- Priority: JP2010-174957 20100804; JP2011-000553 20110105; JP2011-091633 20110418; JP2011-157378 20110719
- International Application: PCT/JP2011/067680 WO 20110802
- International Announcement: WO2012/018014 WO 20120209
- Main IPC: B32B15/04
- IPC: B32B15/04 ; B32B15/18 ; B21D31/00 ; C22C38/00 ; C23C30/00 ; B21D22/20 ; B32B15/01 ; C22C18/00 ; C22C19/03 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/28 ; C22C38/32 ; C22C38/60 ; C23C28/02 ; C25D5/14 ; C21D8/02 ; C25D3/56 ; C25D5/50 ; C22C38/38 ; C21D1/673

Abstract:
In order to provide a steel sheet for hot pressing from which a hot-pressed part excellent in perforation corrosion resistance is obtainable and a method of manufacturing a hot-pressed part using the steel sheet for hot pressing, provided is a steel sheet for hot pressing having, sequentially on a surface of a base steel sheet: a plating layer I containing 60% by mass or more of Ni and the remainder consisting of Zn and inevitable impurities, a coating mass thereof being 0.01 to 5 g/m2; and a plating layer II containing 10 to 25% by mass of Ni and the remainder consisting of Zn and inevitable impurities, a coating mass thereof being 10 to 90 g/m2.
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