发明授权
- 专利标题： Treatment solution for forming insulating layers on magnetic particles process for forming the insulating layers, and electric device with a soft magnetic powder composite core
- 专利标题（中）： 用于在磁性颗粒上形成绝缘层的处理溶液用于形成绝缘层，以及具有软磁性粉末复合芯的电气装置
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申请号： US09448475申请日： 1999-11-24
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公开(公告)号： US06344273B1公开(公告)日： 2002-02-05
- 发明人: Yuichi Satsu , Hideaki Katayama , Yuzo Ito , Akio Takahashi , Noboru Baba , Chikara Tanaka , Kazuo Asaka , Chio Ishihara , Hiroaki Miyata , Kazuhiro Satou
- 申请人： Yuichi Satsu , Hideaki Katayama , Yuzo Ito , Akio Takahashi , Noboru Baba , Chikara Tanaka , Kazuo Asaka , Chio Ishihara , Hiroaki Miyata , Kazuhiro Satou
- 优先权： JP8-133239 19960528; JP8-258726 19960930
- 主分类号： B05D700
- IPC分类号： B05D700
摘要：
The present invention provides a soft magnetic powder composite core for an electric apparatus produced with soft magnetic particles having electric insulating layers on the surfaces thereof, wherein said electric insulating layers are formed by mixing said soft magnetic particles with an insulating layer-forming solution which comprises a phosphating solution and a rust inhibitor, which is an organic compound containing at least one of nitrogen or sulfur having a lone pair of electrons suppressing the formation of iron oxide and surfactant, and drying the treated soft magnetic particles at a predetermined temperature. The soft magnetic powder composite core is excellent in iron loss and magnetic flux density.
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