发明授权
- 专利标题： Method of producing unidirectional electromagnetic steel sheet having excellent film characteristics and magnetic characteristics
- 专利标题（中）： 制造具有优异的膜特性和磁特性的单向电磁钢板的方法
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申请号： US09202511申请日： 1998-12-15
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公开(公告)号： US06395104B1公开(公告)日： 2002-05-28
- 发明人: Kenji Kosuge , Kishio Mochinaga , Eiichi Nanba , Nobuo Tachibana , Shinya Ishii , Naoki Yagi
- 申请人： Kenji Kosuge , Kishio Mochinaga , Eiichi Nanba , Nobuo Tachibana , Shinya Ishii , Naoki Yagi
- 优先权： JP9-099323 19970416; JP9-221826 19970818
- 主分类号： C21D176
- IPC分类号： C21D176
摘要：
A process for producing a grain-oriented electrical steel sheet wherein during the decarburization annealing step, the steel sheet is first rapidly heated in a rapid heating chamber and the PH2O/PH2 ratio in the rapid heating chamber is more than the PH2O/PH2 ratio in the decarburization annealing furnace so as to provide improved oxide film adhesion.
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