客服热线:18202992950

METHOD OF MANUFACTURING RARE EARTH MAGNET 发明申请

2023-05-03 2030 1407K 0

专利信息

申请日期 2025-07-11 申请号 WOIB14002839
公开(公告)号 WO2015097524A1 公开(公告)日 2015-07-02
公开国别 WO 申请人省市代码 全国
申请人 TOYOTA JIDOSHA KABUSHIKI KAISHA
简介 A method of manufacturing a rare earth magnet includes : preparing a powder by preparing a rapidly-solidified ribbon by liquid solidification, and by crushing the rapidly-solidified ribbon; manufacturing a sintered compact by press-forming the powder; and manufacturing a rare earth magnet by performing hot deformation processing on the sintered compact to impart anisotropy to the sintered compact. In this method, the rapidly-solidified ribbon is a plurality of fine crystal grains. The powder includes a RE-Fe-B main phase and a grain boundary phase of a RE-X alloy present around the main phase. RE represents at least one of Nd and Pr. X represents a metal element. A nitrogen content in the powder is adjusted to be at least 1, 000 ppm and less than 3, 000 ppm by performing at least one of the preparation of the powder and the manufacturing of the sintered compact in a nitrogen atmosphere.


您还没有登录,请登录后查看下载地址


反对 0举报 0 收藏 0 打赏 0评论 0
下载排行
网站首页  |  关于我们  |  联系方式  |  使用协议  |  版权隐私  |  网站地图  |  排名推广  |  广告服务  |  积分换礼  |  网站留言  |  RSS订阅  |  违规举报  |  京ICP备2021025988号-4