- 专利标题： Stainless steel sheet for fuel cell separators and production method therefor
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申请号： US16489881申请日： 2018-04-02
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公开(公告)号： US11085120B2公开(公告)日： 2021-08-10
- 发明人: Takayoshi Yano , Shin Ishikawa
- 申请人： JFE STEEL CORPORATION
- 申请人地址： JP Tokyo
- 专利权人： JFE STEEL CORPORATION
- 当前专利权人： JFE STEEL CORPORATION
- 当前专利权人地址： JP Tokyo
- 代理机构： Kenja IP Law PC
- 优先权： JPJP2017-086366 20170425
- 国际申请： PCT/JP2018/014154 WO 20180402
- 国际公布： WO2018/198685 WO 20181101
- 主分类号： B21D39/00
- IPC分类号： B21D39/00 ; C23F17/00 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/42 ; C22C38/44 ; C22C38/48 ; C22C38/50 ; C23F1/28 ; C25F1/06 ; H01M8/021 ; H01M8/0247
摘要：
A stainless steel sheet for fuel cell separators comprises a predetermined chemical composition, wherein the stainless steel sheet has a textured structure at a surface thereof, an average interval between projected parts of the textured structure being 20 nm or more and 200 nm or less, and a ratio [Cr]/[Fe] of an atomic concentration of Cr existing in chemical form other than metal to an atomic concentration of Fe existing in chemical form other than metal at the surface of the stainless steel sheet is 2.0 or more.
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