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PROCESS FOR PRODUCING R-FE-B RARE-EARTH SINTERED MAGNET AND RARE-EARTH SINTERED MAGNET PRODUCED BY T 发明申请

2023-11-09 3340 1249K 0

专利信息

申请日期 2025-07-18 申请号 WOJP09000901
公开(公告)号 WO2009107397A1 公开(公告)日 2009-09-03
公开国别 WO 申请人省市代码 全国
申请人 HITACHI METALS LTD; TAKAKI Shigeru; MORIMOTO Hideyuki; ODAKA Tomoori
简介 A process for producing an R-Fe-B rare-earth sintered magnet containing at least one lightweight rare-earth element (RL) (at least one of Nd and Pr) and at least one heavy rare-earth element (RH) (at least one of Dy and Tb). An R-Fe-B rare-earth sintered magnet is prepared in which when the contents of the rare-earth element(s), oxygen, carbon, and nitrogen are expressed by X (mass%), ZO (mass%), ZC (mass%), and ZN (mass%), respectively, and ZO+ZC+ZN is expressed by Y (mass%), then the contents satisfy the relationships (0.114X-3.17)≤Y≤(0.157X-4.27), 0


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