PROCESS AND APPARATUS FOR PRODUCING GRANULATION POWDER OF RARE EARTH ALLOY AND PROCESS FOR PRODUCING SINTERED OBJECT OF RARE EARTH ALLOY
    2.
    发明授权
    PROCESS AND APPARATUS FOR PRODUCING GRANULATION POWDER OF RARE EARTH ALLOY AND PROCESS FOR PRODUCING SINTERED OBJECT OF RARE EARTH ALLOY 有权
    生产烧结百分点稀土合金的方法和装置稀土合金GRANULIERPULVER和方法的生产

    公开(公告)号:EP1642661B1

    公开(公告)日:2009-07-15

    申请号:EP04734936.0

    申请日:2004-05-26

    IPC分类号: B22F3/02 B22F1/00 H01F1/06

    摘要: A process for producing granulation powder comprising a step for providing powder of rare earth alloy having remanent magnetization, a step for feeding the powder to a track (22) defined by a side face (22a) and a bottom face (22b) inclining downward toward the side face, and a step for imparting kinetic energy to the powder by vibrating the track and performing granulation under substantially zero magnetic field utilizing cohesive force caused by remanent magnetization of the powder and rolling action caused by kinetic energy while transporting the powder in the longitudinal direction of the track. Granulation powder of rare earth alloy exhibiting excellent fluidity and press moldability and capable of producing a magnet having excellent magnetic characteristics can thereby be obtained.

    摘要翻译: 一种用于制作造粒粉gemäß到本发明方法包括以下步骤:准备带有剩磁的稀土类合金粉末; 供给粉末到轨道22的所有其由侧表面22a和下表面22b中没有被倾斜的,从而减小其朝向侧表面高度限定; 和轨道上设置的振动,得到粉末动能,由此,沿所述轨道的长度的粉末,并通过由粉末和翻滚的剩磁产生的结块力利用制粒基本上零磁场下的粉末 由动能产生的动作。 其结果是,稀土类合金的造粒粉,其具有良好的流动能力和良好的成形性,并且使得能够生产具有优良磁性的磁铁,可制得。