发明申请
- 专利标题: NON-ORIENTED ELECTRICAL STEEL SHEET
- 专利标题(中): 非指向电工钢板
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申请号: US14362167申请日: 2012-05-31
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公开(公告)号: US20140342150A1公开(公告)日: 2014-11-20
- 发明人: Takeaki Wakisaka
- 申请人: Takeaki Wakisaka
- 申请人地址: JP Tokyo
- 专利权人: Nippon Steel & Sumitomo Metal Corporation
- 当前专利权人: Nippon Steel & Sumitomo Metal Corporation
- 当前专利权人地址: JP Tokyo
- 国际申请: PCT/JP2012/064062 WO 20120531
- 主分类号: H01F1/147
- IPC分类号: H01F1/147
摘要:
A non-oriented electrical steel sheet includes: C: 0.005 mass % or less; S: 0.003 mass % or less; N: 0.003 mass % or less; Si: 2.0 mass % or more and less than 4.5 mass %; Al: 0.15 mass % or more and less than 2.5 mass %; and Cr: 0.3 mass % or more and less than 5.0 mass %; and a balance being composed of Fe and inevitable impurities; and a Cr-oxide-containing layer having a thickness of not less than 0.01 μm nor more than 0.5 μm on a surface side, in which when [Si], [Al], and [Cr] are set to the Si content, the Al content, and the Cr content (mass %) of the non-oriented electrical steel sheet respectively, and t is set to a sheet thickness (mm) of the non-oriented electrical steel sheet, 10 mass %≦2[Si]+2[Al]+[Cr]
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