发明授权
- 专利标题: High-strength press hardened article, and manufacturing method therefor
- 专利标题(中): 高强度冲压硬化制品及其制造方法
-
申请号: US13147510申请日: 2010-02-01
-
公开(公告)号: US08858735B2公开(公告)日: 2014-10-14
- 发明人: Masaaki Kondo , Shinichi Suzuki , Toshimasa Tomokiyo , Koichi Nishizawa , Takayuki Suzuki , Yuki Ishiguro , Hideyuki Kai
- 申请人: Masaaki Kondo , Shinichi Suzuki , Toshimasa Tomokiyo , Koichi Nishizawa , Takayuki Suzuki , Yuki Ishiguro , Hideyuki Kai
- 申请人地址: JP Aichi-ken JP Tokyo JP Aichi-ken
- 专利权人: Toyota Jidosha Kabushiki Kaisha,Nippon Steel & Sumitomo Metal Corporation,Aisin Takaoka Co., Ltd.
- 当前专利权人: Toyota Jidosha Kabushiki Kaisha,Nippon Steel & Sumitomo Metal Corporation,Aisin Takaoka Co., Ltd.
- 当前专利权人地址: JP Aichi-ken JP Tokyo JP Aichi-ken
- 代理机构: Sughrue Mion, PLLC
- 优先权: JP2009-022537 20090203
- 国际申请: PCT/IB2010/000185 WO 20100201
- 国际公布: WO2010/089644 WO 20100812
- 主分类号: C22C38/00
- IPC分类号: C22C38/00 ; C23C2/28 ; C21D8/02 ; C23C2/06 ; C21D1/673
摘要:
A high-strength quenched formed article has a zinc plating layer which is formed at a post-quenching formed steel sheet surface, and which contains 30 g/m2 or more of a phase that contains 5% or more by mass but 30% or less by mass of Fe, and which also contains 0.15% or more by mass but less than 2% by mass of at least one of Al and Si in a separate fashion or a composite fashion, and contains Zn, which makes up substantially a rest portion of the zinc plating layer, and an inevitable impurity, wherein the high-strength quenched formed article has a high-strength portion having a post-quenching-formation tensile strength of 1000 MPa or more, and a low-strength portion having a post-quenching-formation tensile strength of 800 MPa or less.
公开/授权文献
信息查询