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Ferrite composition and motor having the same 发明申请

2023-09-19 3210 631K 0

专利信息

申请日期 2025-07-10 申请号 KR1020150031818
公开(公告)号 KR1020150105256A 公开(公告)日 2015-09-16
公开国别 KR 申请人省市代码 全国
申请人 TDK CORPORATION
简介 The present invention provides a sintered ferrite magnet having excellent residual magnetic flux density (Br) and rectangularity ratio (Hk/HcJ), and a motor having the same. According to the present invention, the sintered ferrite magnet comprises : a main phase of M type Sr ferrite having a hexagonal crystal structure; 0.05-1.35 mass% of Zn in ZnO; and M1/M2 equal to or less than 0.43 when an amount of a rare-earth element (R) is M1 in terms of mole and the amount of Zn is M2 in terms of mole.COPYRIGHT KIPO 2015


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