- 专利标题： NON-ORIENTED ELECTRICAL STEEL SHEET, CORE, COLD-ROLLED STEEL SHEET, METHOD FOR MANUFACTURING NON-ORIENTED ELECTRICAL STEEL SHEET, AND METHOD FOR MANUFACTURING COLD-ROLLED STEEL SHEET
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申请号： EP21783908.3申请日： 2021-03-24
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公开(公告)号： EP4134456A1公开(公告)日： 2023-02-15
- 发明人: FUKUCHI, Minako , TANAKA, Ichiro , TOMITA, Miho , MURAKAWA, Tesshu
- 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： JP2020070883 20200410
- 国际公布： WO2021205880 20211014
- 主分类号： C21D8/12
- IPC分类号： C21D8/12 ; H01F3/02 ; C22C38/00 ; C22C38/60 ; H01F1/147
摘要：
A non-oriented electrical steel sheet has a predetermined chemical composition. The chemical composition satisfies (2 × [Mn] + 2.5 × [Ni] + [Cu]) - ([Si] + 2 × [sol.Al] + 4 × [P]) ≥ 1.50%. In a case where Ahkl-uvw represents the area ratio of crystal grains in an {hkl} orientation to the entire visual field when a plane at a depth of 1/2 of a sheet thickness from a surface parallel to a rolled surface is measured by SEM-EBSD, A411-011 is 15.0% or more, and the average grain size is 50 µm to 150 µm.
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