客服热线:18202992950

R a-T a-B based sintered magnet and its manufacturing method 发明授权

2023-12-01 2410 1437K 0

专利信息

申请日期 2025-07-11 申请号 JP2018527252
公开(公告)号 JP6380724B1 公开(公告)日 2018-08-29
公开国别 JP 申请人省市代码 全国
申请人 日立金属株式会社
简介 A sintered R-T-B based magnet composition includes : R : not less than 27 mass % and not more than 37 mass % (R is at least one rare-earth element which always includes at least one of Nd and Pr), B : not less than 0.75 mass % and not more than 0.97 mass %, Ga : not less than 0.1 mass % and not more than 1.0 mass %, Cu : not less than 0 mass % and not more than 1.0 mass %, and T : 61.03 mass % or more (where T is at least one selected from Fe, Co, Al, Mn and Si and always includes Fe, such that the Fe content is 80 mass % or more in the entire T). [T]/[B] is greater than 14.0. An R amount is greater in the surface than in the center, and a Ga amount is greater in the surface than in the center. [T]/[B] in the surface is higher than [T]/[B] in the center.


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