发明授权
- 专利标题: Grain oriented electrical steel sheet and method for manufacturing the same
- 专利标题(中): 晶粒取向电工钢板及其制造方法
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申请号: US13805109申请日: 2011-06-28
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公开(公告)号: US09536657B2公开(公告)日: 2017-01-03
- 发明人: Takeshi Omura , Hiroaki Toda , Hiroi Yamaguchi , Seiji Okabe
- 申请人: Takeshi Omura , Hiroaki Toda , Hiroi Yamaguchi , Seiji Okabe
- 申请人地址: JP
- 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
- 代理机构: DLA Piper LLP (US)
- 优先权: JP2010-148307 20100629
- 国际申请: PCT/JP2011/003690 WO 20110628
- 国际公布: WO2012/001957 WO 20120105
- 主分类号: H01F41/00
- IPC分类号: H01F41/00 ; C21D8/12 ; H01F1/16 ; C22C38/02
摘要:
A grain oriented electrical steel sheet is subjected to magnetic domain refinement by laser irradiation and has magnetic flux density B8 of at least 1.91T, wherein the nitrogen content in the forsterite coating is 3.0 mass % or less. The grain oriented electrical steel sheet satisfies recent demand for iron loss reduction.
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