- 专利标题： Grain-oriented electrical steel sheet and method of manufacturing grain-oriented electrical steel sheet
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申请号： US16628951申请日： 2018-07-13
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公开(公告)号： US11060159B2公开(公告)日： 2021-07-13
- 发明人: Seiki Takebayashi , Shuichi Nakamura , Hiroyasu Fujii , Yoshiyuki Ushigami
- 申请人： NIPPON STEEL CORPORATION
- 申请人地址： JP Tokyo
- 专利权人： NIPPON STEEL CORPORATION
- 当前专利权人： NIPPON STEEL CORPORATION
- 当前专利权人地址： JP Tokyo
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： JPJP2017-137419 20170713
- 国际申请： PCT/JP2018/026611 WO 20180713
- 国际公布： WO2019/013347 WO 20190117
- 主分类号： C23C22/05
- IPC分类号： C23C22/05 ; C23C28/00 ; C22C38/02 ; C22C38/06 ; C22C38/60 ; C21D8/12 ; C21D9/46 ; C22C38/00
摘要：
A grain-oriented electrical steel sheet according to an aspect of the present invention includes: a steel sheet 1; an intermediate layer 4 containing Si and O, arranged on the steel sheet; and an insulation coating 3 arranged on the intermediate layer 4, in which the intermediate layer 4 contains a metal phosphide 5, a thickness of the intermediate layer 4 is 4 nm or more, and an abundance of the metal phosphide 5 present is 1% to 30% by cross-sectional area fraction in a cross section of the intermediate layer 4.
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