发明申请
- 专利标题： POWDER MAGNETIC CORE AND METHOD FOR MANUFACTURING THE SAME
- 专利标题（中）： 粉末磁芯及其制造方法
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申请号： US13046307申请日： 2011-03-11
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公开(公告)号： US20110227679A1公开(公告)日： 2011-09-22
- 发明人: Masahito KOEDA , Tomofumi KURODA , Tomokazu ISHIKURA , Akihiro HARADA , Hiroyuki ONO , Osamu KIDO , Satoko UEDA
- 申请人： Masahito KOEDA , Tomofumi KURODA , Tomokazu ISHIKURA , Akihiro HARADA , Hiroyuki ONO , Osamu KIDO , Satoko UEDA
- 申请人地址： JP Tokyo
- 专利权人： TDK CORPORATION
- 当前专利权人： TDK CORPORATION
- 当前专利权人地址： JP Tokyo
- 优先权： JP2010-063148 20100318; JP2010-156772 20100709
- 主分类号： H01F3/08
- IPC分类号： H01F3/08 ; B22F1/00
摘要：
The present invention provides a powder magnetic core low in the loss and high in the saturation magnetic flux density and a method for manufacturing the same. More specifically, the present invention provides a powder magnetic core that comprises a soft magnetic metal powder having an average particle size (D50) of 0.5 to 5 μm, a half width of diffraction peak in a direction of α-Fe as measured by X-ray powder diffraction of 0.2 to 5.0°, and an Fe content of 97.0% by mass or more, the core having an oxygen content of 2.0% by mass or more.
公开/授权文献
- US08252124B2 Powder magnetic core and method for manufacturing the same 公开/授权日：2012-08-28
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