发明名称 |
ANISOTROPIC ELECTROMAGNETIC STEEL SHEET AND METHOD FOR PRODUCING SAME |
摘要 |
A non-oriented electrical steel sheet containing: in mass%, C: 0.005% or less; Si: 0.1% to 2.0%; Mn: 0.05% to 0.6%; P: 0.100% or less; and Al: 0.5% or less, in which 10 pieces/µm 3 or less in number density of non-magnetic precipitate AlN having an average diameter of 10 nm to 200 nm are contained, and an average magnetic flux density B50 in a rolling direction and in a direction perpendicular to rolling is 1.75 T or more. This non-oriented electrical steel sheet can be manufactured by two methods of a method of performing hot rolling annealing at a temperature of 750°C to an Ac1 transformation point and a method of setting a coil winding temperature to 780°C or higher and performing self annealing. |
申请公布号 |
KR20140073569(A) |
申请公布日期 |
2014.06.16 |
申请号 |
KR20147012217 |
申请日期 |
2012.11.09 |
申请人 |
NIPPON STEEL & SUMITOMO METAL CORPORATION |
发明人 |
FUJIKURA MASAHIRO;USHIGAMI YOSHIYUKI;MURAKAWA TESSHU;KANAO SHINICHI;ATAKE MAKOTO;ICHIE TAKERU;HORI KOJIRO |
分类号 |
C22C38/04;C21D8/12;C22C38/06;C22C38/60;H01F1/16 |
主分类号 |
C22C38/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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