发明申请
US20110104476A1 Soft magnetic material, motor core, transformer core, and method for manufacturing soft magnetic material
审中-公开
软磁材料,电机芯,变压器芯,以及软磁材料的制造方法
- 专利标题: Soft magnetic material, motor core, transformer core, and method for manufacturing soft magnetic material
- 专利标题(中): 软磁材料,电机芯,变压器芯,以及软磁材料的制造方法
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申请号: US10552417申请日: 2004-05-28
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公开(公告)号: US20110104476A1公开(公告)日: 2011-05-05
- 发明人: Haruhisa Toyoda , Daichi Kawaguchi , Shohzoh Tanaka , Kazuhiko Ueda
- 申请人: Haruhisa Toyoda , Daichi Kawaguchi , Shohzoh Tanaka , Kazuhiko Ueda
- 优先权: JP2003-155083 20030530
- 国际申请: PCT/JP04/07798 WO 20040528
- 主分类号: B32B15/02
- IPC分类号: B32B15/02 ; B32B33/00 ; B22F1/00 ; B22F3/12
摘要:
A soft magnetic material includes a composite magnetic particle and an organic substance. The composite magnetic particle has a metallic magnetic particle and a coating layer coating the metallic magnetic particle and containing an oxide therein. The organic substance is formed by adding at least one of a thermoplastic resin and a higher fatty acid having an effect of increasing resistivity of the material, to a non-thermoplastic resin having an effect of improving durability such as material fatigue limit. The organic substance is contained in the soft magnetic material by not less than 0.001% by mass and not more than 0.2% by mass. The present invention provides a soft magnetic material having high magnetic property and mechanical strength and also having fatigue property and resistivity satisfying durability enough for use as a motor core or the like, and a method for manufacturing the same. Further, the invention provides a motor core and a transformer core made of the soft magnetic material. A core loss can significantly be reduced in a motor core made of the soft magnetic material.
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