发明名称 |
Process for producing non-oriented electromagnetic steel strip capable of retaining uniform magnetic quality in a product coil |
摘要 |
A process is disclosed for the production of a non-oriented electromagnetic steel strip having its magnetic characteristics uniformly retained in the product coil. The process involves by full- or semi-processing, hot rolling a steel slab containing not more than about 0.03% by weight of C, not more than about 3% by weight of Si and not more than about 2% by weight of Al such that the equation [Si wt %]+3 [Al wt %]-6 [C wt %] is in the range of about 0 to 2; and cold rolling the hot rolled steel strip in a known manner, followed optionally by finish annealing and also optionally by skin-pass rolling. The coil is finish rolled at a peripheral roll speed between about 500 to 1,500 mpm at the final stand. The peripheral roll speed at the final finish rolling stand is also controlled within a range of no more than about 300 mpm. Hot rolling is completed at a temperature Tf ( DEG C.) in an alpha-phase temperature zone and not less than about {750+30 ([Si wt %]+3 [Al wt %]-6 [C wt %])}.
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申请公布号 |
US5639315(A) |
申请公布日期 |
1997.06.17 |
申请号 |
US19950573277 |
申请日期 |
1995.12.15 |
申请人 |
KAWASAKI STEEL CORPORATION |
发明人 |
TAKASHIMA, MINORU;SATO, KEIJI;OBARA, TAKASHI |
分类号 |
B21B3/02;B21B15/00;C21D8/12;C22C38/00;C22C38/06;H01F1/16;(IPC1-7):H01F1/14 |
主分类号 |
B21B3/02 |
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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