发明授权
US5676770A Low leakage flux, non-oriented electromagnetic steel sheet, and core and
compact transformer using the same
失效
低漏磁通,无取向电磁钢板,以及使用其的铁芯和紧凑型变压器
- 专利标题: Low leakage flux, non-oriented electromagnetic steel sheet, and core and compact transformer using the same
- 专利标题(中): 低漏磁通,无取向电磁钢板,以及使用其的铁芯和紧凑型变压器
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申请号: US570288申请日: 1995-12-11
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公开(公告)号: US5676770A公开(公告)日: 1997-10-14
- 发明人: Keiji Sato , Kouji Yano , Minoru Takashima , Masaki Kawano , Takashi Obara
- 申请人: Keiji Sato , Kouji Yano , Minoru Takashima , Masaki Kawano , Takashi Obara
- 申请人地址: JPX
- 专利权人: Kawasaki Steel Corporation
- 当前专利权人: Kawasaki Steel Corporation
- 当前专利权人地址: JPX
- 优先权: JPX6-310465 19941214
- 主分类号: C21D8/12
- IPC分类号: C21D8/12 ; C22C38/00 ; C22C38/04 ; C22C38/60 ; H01F1/147
摘要:
This invention relates to a non-oriented electromagnetic steel sheet with low leakage flux for a compact transformer and a method for making the same. After stress relief annealing, the magnetic permeability .mu..sub.C of the sheet in the direction transverse to the sheet rolling direction is.mu..sub.C .gtoreq.about 2.5.times.10.sup.-3 (H/m) and magnetic permeability .mu..sub.D of the sheet in the direction 45.degree. to the sheet rolling direction is .mu..sub.D .gtoreq.about 1.5.times.10.sup.-3 (H/m).
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