客服热线:18202992950

A magnet system exhibits a high energy product Nd-Fe-B 发明授权

2023-01-21 3380 30K 0

专利信息

申请日期 2025-07-10 申请号 JP11372344
公开(公告)号 JP4399937B2 公开(公告)日 2010-01-20
公开国别 JP 申请人省市代码 全国
申请人 Daido Steel Co Ltd3713
简介 PROBLEM TO BE SOLVED : To provide a magnet having energy product higher than that of the conventional one, i.e., ((BH)max>=44.0MGOe, moreover >=45.0MGOe) in a ring magnet obtained by forming the powder of a rapidly cooled thin strip of an Nd-Fe-B system magnet alloy by hot plastic working to exhibit radial anisotropy and the one having energy product higher than that of the conventional one, i.e., ((BH)max>=42.0MGOe, moreover >=43.0MGOe) and furthermore having high coervice force (iHc>=13.0kOe, moreover 14.0kOe). SOLUTION : The Nd-Fe-B system magnet showing high energy product is obtained by subjecting a magnet alloy composed of a componential system of R-Ce-Fe-Co-B (where R denotes one or more kinds among rare earth elements other than Ce) and having an alloy composition containing, by weight, <=1.0% Ce, 28.0 to 30.0% R+Ce, <=6.0% Co an 0.84 to 0.96% B, and the balance substantial Fe to hot plastic working. In the Nd-Fe-B system magnet showing high coercive force as well as high energy product, an alloy composition in which Ga and/or Zn of 0.2% or less is added thereto is used.


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