发明公开
EP2477199A1 MOLDED RARE-EARTH MAGNET AND PROCESS FOR PRODUCING SAME
审中-公开
GEFORMTER SELTENERDMAGNET UND HERSTELLUNGSVERFAHRENDAFÜR
- 专利标题： MOLDED RARE-EARTH MAGNET AND PROCESS FOR PRODUCING SAME
- 专利标题（中）： GEFORMTER SELTENERDMAGNET UND HERSTELLUNGSVERFAHRENDAFÜR
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申请号： EP10815232.3申请日： 2010-08-04
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公开(公告)号： EP2477199A1公开(公告)日： 2012-07-18
- 发明人: KAWASHITA, Yoshio , URAMOTO, Kiyohiro , MIYAMOTO, Takashi , YASUDA, Yoshiteru
- 申请人： Nissan Motor Co., Ltd.
- 申请人地址： 2, Takara-cho Kanagawa-ku Yokohama-shi, Kanagawa 221-0023 JP
- 专利权人： Nissan Motor Co., Ltd.
- 当前专利权人： Nissan Motor Co., Ltd.
- 当前专利权人地址： 2, Takara-cho Kanagawa-ku Yokohama-shi, Kanagawa 221-0023 JP
- 代理机构： Grünecker, Kinkeldey, Stockmair & Schwanhäusser
- 优先权： JP2009208621 20090909
- 国际公布： WO2011030635 20110317
- 主分类号： H01F41/02
- IPC分类号： H01F41/02 ; B22F1/00 ; B22F1/02 ; B22F3/00 ; B22F3/02 ; B22F3/14 ; H01F1/053 ; H01F1/08 ; C22C19/07 ; C22C38/00
摘要：
A rare earth magnet molding (1) of the present invention includes rare earth magnet particles (2), and an insulating phase (3) present among the rare earth magnet particles. Segregation regions (4) in which at least one element selected from the group consisting of Dy, Tb, Pr and Ho is segregated are distributed in the rare earth magnet particles (2). Accordingly, the rare earth magnet molding that has excellent resistance to heat in motor environments or the like while maintaining high magnetic characteristics (coercive force) is provided.
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