发明名称 |
PROCESS FOR PRODUCTION OF ORIENTED ELECTROMAGNETIC STEEL SHEET |
摘要 |
<p>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.</p> |
申请公布号 |
KR20120042980(A) |
申请公布日期 |
2012.05.03 |
申请号 |
KR20127003837 |
申请日期 |
2010.07.15 |
申请人 |
NIPPON STEEL CORPORATION |
发明人 |
USHIGAMI YOSHIYUKI;FUJII NORIKAZU |
分类号 |
C21D8/12;B21B3/02;C22C38/00;H01F1/16 |
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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