发明名称 |
Non-oriented silicon steel sheet and method |
摘要 |
A non-oriented silicon steel sheet having a low core loss contains Si in an amount of about 2.5-5.0 wt % and S restricted to about 0.003 wt % or less and inclusions; the volume ratio of those inclusions having a particle size of about 4 mu m or higher to the total volume of inclusions is about 5-60%, and the volume ratio of inclusions having a particle size less than about 1 mu m to the total volume of inclusions is about 1-15%; when the sheet contains Mn in an amount of about 0.4-1.5%, and the volume ratio of particles less than 1 mu m is about 1-5%, the silicon steel sheet also has a low rotation core loss. The method of manufacturing comprises controlling the change of a cooling speed to about 5 DEG C./s2 or less in the cooling process of such steel sheet in a finish annealing.
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申请公布号 |
US5676771(A) |
申请公布日期 |
1997.10.14 |
申请号 |
US19960711756 |
申请日期 |
1996.09.05 |
申请人 |
KAWASAKI STEEL CORPORATION |
发明人 |
YANO, KOJI;HONDA, ATSUHITO;OBARA, TAKASHI;TAKASHIMA, MINORU |
分类号 |
C21D8/12;C22C38/02;(IPC1-7):C22C38/06 |
主分类号 |
C21D8/12 |
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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