- 专利标题: Oriented electromagnetic steel sheet and method for manufacturing oriented electromagnetic steel sheet
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申请号: US16342829申请日: 2017-10-17
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公开(公告)号: US11091842B2公开(公告)日: 2021-08-17
- 发明人: Takumi Umada , Shigehiro Takajo , Takashi Terashima , Minoru Takashima , Yasuyuki Hayakawa
- 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: Ratnerprestia
- 优先权: JPJP2016-204163 20161018
- 国际申请: PCT/JP2017/037506 WO 20171017
- 国际公布: WO2018/074462 WO 20180426
- 主分类号: C23F17/00
- IPC分类号: C23F17/00 ; C23C14/06 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/00 ; C22C38/60 ; C23D5/02 ; C21D9/46 ; C21D8/12 ; C21D6/00 ; C21D3/04 ; H01F1/18 ; B32B15/04 ; C23C28/04 ; C23C14/00 ; C23C14/22 ; C23C16/36 ; C23C16/34 ; C23C16/32
摘要:
Provided are: an oriented electromagnetic steel sheet with outstanding coating adhesion and magnetic properties after stress relief annealing; and a method for manufacturing the oriented electromagnetic steel sheet. The oriented electromagnetic steel sheet comprises: a steel sheet; a non-oxide ceramic coating disposed on the steel sheet and containing a non-oxide; and an insulating tensile coating disposed on the non-oxide ceramic coating and containing an oxide. The thickness of the non-oxide ceramic coating is 0.020-0.400 μm. The thickness of the insulating tensile coating is at least 1.0 μm. The chromium content on the steel plate side of the non-oxide ceramic coating is less than 25 atomic %, and the chromium content on the insulating tensile coating side of the non-oxide ceramic coating is at least 25 atomic %.
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