Rare earth magnet, method for manufacturing the same, and motor using rare earth magnet
    3.
    发明申请
    Rare earth magnet, method for manufacturing the same, and motor using rare earth magnet 审中-公开
    稀土磁铁,其制造方法和使用稀土磁铁的电机

    公开(公告)号:US20070012380A1

    公开(公告)日:2007-01-18

    申请号:US11441335

    申请日:2006-05-26

    IPC分类号: H01F1/08

    摘要: A rare earth magnet has a sintered body including: rare earth magnet particles; and a rare earth oxide being present between the rare earth magnet particles, the rare earth oxide being represented by a following general formula (I): R2O3   (I) where R is any one of terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium. The rare earth magnet particle is constituted by a cluster of numerous crystal grains, and an electric resistivity of the rare earth magnet is within a range from 26.0 to 75.0 μΩm.

    摘要翻译: 稀土磁体具有:稀土类磁铁颗粒; 在稀土类磁体粒子之间存在稀土类氧化物,稀土类氧化物由下述通式(I)表示:&lt;线内配方说明=“直列式”结束=“铅”? (I)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中R是 铽,镝,钬,铒,ium,镱和镥。 稀土磁体颗粒由许多晶粒簇组成,稀土磁体的电阻率在26.0至75.0μm的范围内。

    Nd-Fe-B type anisotropic exchange spring magnet and method of producing the same
    8.
    发明授权
    Nd-Fe-B type anisotropic exchange spring magnet and method of producing the same 失效
    Nd-Fe-B型各向异性交换弹簧磁铁及其制造方法

    公开(公告)号:US07371292B2

    公开(公告)日:2008-05-13

    申请号:US10705235

    申请日:2003-11-12

    发明人: Hideaki Ono

    IPC分类号: H01F1/057

    摘要: A Nd—Fe—B type anisotropic exchange spring magnet is produced by a method of obtaining powder of a Nd—Fe—B type rare earth magnet alloy which comprises hard magnetic phases and soft magnetic phases wherein a minimum width of the soft magnetic phases is smaller than or equal to 1 μm and a minimum distance between the soft magnetic phases is greater than or equal to 0.1 μm, obtaining a compressed powder body by compressing the powder, and obtaining the Nd—Fe—B type anisotropic exchange spring magnet by sintering the compressed powder body using a discharge plasma sintering unit.

    摘要翻译: 通过获得包含硬磁相和软磁相的Nd-Fe-B型稀土磁体合金粉末的方法制造Nd-Fe-B型各向异性交换弹簧磁体,其中软磁相的最小宽度为 小于等于1μm,软磁相之间的最小距离大于或等于0.1μm,通过压缩粉末获得压缩粉体,并通过烧结获得Nd-Fe-B型各向异性交换弹簧磁体 使用放电等离子体烧结单元的压缩粉体。