发明公开
- 专利标题: HOT PRESS FORMED PRODUCT AND METHOD FOR PRODUCTION THEREOF
- 专利标题(中): 热压成型产品及其生产方法
-
申请号: EP04729213.1申请日: 2004-04-23
-
公开(公告)号: EP1630244A1公开(公告)日: 2006-03-01
- 发明人: YOSHIKAWA, Yukihiro, Sumitomo Metal Industries Ltd , IMAI, Kazuhito, Sumitomo Metal Industries, Ltd. , FUKUI, Kunihiro, Sumitomo Metal Industries, Ltd. , TOKI, Tamotsu, Sumitomo Metal Industries, Ltd. , SUDO, Shuntaro , OBAYASHI, Akira , ICHIKAWA, Masanobu
- 申请人: SUMITOMO METAL INDUSTRIES, LTD. , Toyota Jidosha Kabushiki Kaisha , Toyoda Iron Works Co., Ltd.
- 申请人地址: 5-33, Kitahama 4-chome, Chuo-ku Osaka-shi, Osaka 541-0041 JP
- 专利权人: SUMITOMO METAL INDUSTRIES, LTD.,Toyota Jidosha Kabushiki Kaisha,Toyoda Iron Works Co., Ltd.
- 当前专利权人: SUMITOMO METAL INDUSTRIES, LTD.,Toyota Jidosha Kabushiki Kaisha,Toyoda Iron Works Co., Ltd.
- 当前专利权人地址: 5-33, Kitahama 4-chome, Chuo-ku Osaka-shi, Osaka 541-0041 JP
- 代理机构: Simons, Amanda Louise
- 优先权: JP2003118903 20030423; JP2003307348 20030829
- 国际公布: WO2004094684 20041104
- 主分类号: C23C2/06
- IPC分类号: C23C2/06 ; C23C2/26 ; B21D22/02
摘要:
A hot press-formed article having improved corrosion resistance and coating adhesion when coated is obtained by hot press forming of a zinc-based plated steel material. It has a zinc-based plating layer comprising an iron-zinc solid solution phase and atop it a zinc oxide layer. The average thickness of the zinc oxide layer which is the outermost layer is at most 2 µm. A hot press-formed article having a good appearance and excellent corrosion resistance, coating adhesion, post-coating corrosion resistance, and weldability has a layer (2) consisting essentially of an iron-zinc solid solution phase atop a base material steel sheet (1). It also has a zinc oxide layer (3) with an average thickness of at most 5 µm as an uppermost layer, but it does not have a substantial amount of an iron-zinc intermetallic compound phase. The total amount of Al contained in the iron-zinc solid solution layer (2) and the zinc oxide layer (3) is at most 0.5 g/m 2 , and/or the total amount of Al oxides contained in these layers is at most 5 mg/m 2 .
公开/授权文献
- EP1630244B2 HOT PRESS FORMED PRODUCT AND METHOD FOR PRODUCTION THEREOF 公开/授权日:2016-08-17
信息查询
IPC分类: