发明名称 |
Silicon steel sheet and method thereof |
摘要 |
A silicon steel sheet contains 0.01 wt. % or less C, 4 to 10 wt. % Si, 0.5 wt. % or less Mn, 0.01 wt. % or less P, 0.01 wt. % or less S, 0.2 wt. % or less sol. Al, 0.01 wt. % or less N, 0.02 wt. % or less 0 and the balance being Fe. The silicon steel sheet has grain boundaries and carbides which are precipitated on the grain boundaries. The carbides have an area of 20% or less to an area of the grain boundaries. The steel sheet is cooled at a cooling speed of 5 DEG C./sec. or more in a temperature range of from 300 to 700 DEG C.
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申请公布号 |
US5902419(A) |
申请公布日期 |
1999.05.11 |
申请号 |
US19960717623 |
申请日期 |
1996.09.23 |
申请人 |
NKK CORPORATION |
发明人 |
FUJITA, KOICHIRO;TANAKA, YASUSHI;NINOMIYA, HIRONORI;HIRATANI, TATSUHIKO;KASAI, SHOJI |
分类号 |
C23C10/08;C21D8/12;C22C38/00;C22C38/02;C22C38/06;C23C10/06;C23C10/60;H01F1/147;(IPC1-7):H01F1/14 |
主分类号 |
C23C10/08 |
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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