发明名称 |
RARE-EARTH BOND MAGNET, METHOD OF MANUFACTURING THE SAME, AND ROTATING MACHINE |
摘要 |
PROBLEM TO BE SOLVED: To provide a rare-earth bond magnet having high strength, and keeping a magnetic characteristic high even when used at high temperature.SOLUTION: This integrally-formed rare-earth bond magnet 10 includes a first region 12 containing magnetic particles each containing an R-T-B-based alloy (R is a rare-earth element and T is Fe and/or Co) having a heavy rare-earth element, and a second region 14 containing magnetic particles each containing an R-T-B-based alloy having a light rare-earth element. In the rare-earth bond magnet 10, the first region 12 contains magnetic particles higher in a mass ratio of the heavy rare-earth element with respect to all rare-earth elements in comparison with a mass ratio in the second region 14. |
申请公布号 |
JP2011216836(A) |
申请公布日期 |
2011.10.27 |
申请号 |
JP20100114370 |
申请日期 |
2010.05.18 |
申请人 |
TDK CORP |
发明人 |
MORI NAOKI;NAKAMURA HIDEKI |
分类号 |
H01F1/08;H01F1/053;H01F41/02;H02K15/03 |
主分类号 |
H01F1/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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