- 专利标题: GRAIN-ORIENTED ELECTRICAL STEEL SHEET
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申请号: EP20741646.2申请日: 2020-01-16
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公开(公告)号: EP3913099A1公开(公告)日: 2021-11-24
- 发明人: TAKATANI Shinsuke , ARITA Yoshihiro , OKUMURA Shunsuke , NAGANO Shohji
- 申请人: NIPPON STEEL CORPORATION
- 申请人地址: JP Chiyoda-ku Tokyo 100-8071 6-1, Marunouchi 2-chome
- 代理机构: Vossius & Partner Patentanwälte Rechtsanwälte mbB
- 优先权: JP2019005475 20190116
- 国际公布: WO2020149342 20200723
- 主分类号: C21D9/46
- IPC分类号: C21D9/46 ; C22C38/00 ; C22C38/60 ; H01F1/147 ; C23C22/00
摘要:
A grain-oriented electrical steel sheet of the present invention has a base steel sheet, an amorphous oxide layer formed on the base steel sheet, and a tension-insulation coating formed on the amorphous oxide layer, in which the base steel sheet contains, as a chemical composition, by mass%, C: 0.085% or less, Si: 0.80 to 7.00%, Mn: 1.50% or less, acid-soluble Al: 0.065% or less, S: 0.013% or less, Cu: 0 to 0.80%, N: 0 to 0.012%, P: 0 to 0.50%, Ni: 0 to 1.00%, Sn: 0 to 0.30%, and Sb: 0 to 0.30%, a remainder is Fe and an impurity, a surface glossiness Gs20(A) in a direction parallel to a rolling direction is 2.0 to 70, and a surface glossiness Gs20(B) in a direction perpendicular to the rolling direction is 2.0 to 70.
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