发明名称 |
MANUFACTURING METHOD OF GRAIN-ORIENTED MAGNETIC STEEL SHEET |
摘要 |
A nitriding treatment (Step S6) in which an N content of a decarburization-annealed steel strip is increased is performed between start of a decarburization annealing (Step S4) and occurrence of secondary recrystallization in a finish annealing (Step S5). In hot rolling (Step S1), a silicon steel material is held in a temperature range between 1000° C. and 800° C. for 300 seconds or longer, and then finish rolling is performed.
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申请公布号 |
US2012111455(A1) |
申请公布日期 |
2012.05.10 |
申请号 |
US201013261144 |
申请日期 |
2010.07.15 |
申请人 |
USHIGAMI YOSHIYUKI;FUJII NORIKAZU |
发明人 |
USHIGAMI YOSHIYUKI;FUJII NORIKAZU |
分类号 |
C21D8/02;C23C8/02;C23C8/80 |
主分类号 |
C21D8/02 |
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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