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RARE EARTH MAGNET AND METHOD FOR PRODUCING SAME 发明申请

2023-06-19 3470 1586K 0

专利信息

申请日期 2025-07-11 申请号 WOJP06325856
公开(公告)号 WO2007077809A1 公开(公告)日 2007-07-12
公开国别 WO 申请人省市代码 全国
申请人 NEOMAX CO LTD; FUKAGAWA Tomoki
简介 Disclosed is a rare earth magnet comprising a magnet body, which is composed of an R-Fe-B rare earth magnet material (R represents at least one rare earth element), and a metal film formed on the surface of the magnet body. This rare earth magnet further comprises a plurality of reaction layers formed between the magnet body and the metal film. A first reaction layer among the plurality of reaction layers is in contact with at least a part of R2Fe14B crystals contained in the magnet body, and contains a rare earth element contained in the R2Fe14B crystals. A second reaction layer is formed between the first reaction layer and the metal film, and has a lower rare earth concentration than that of the first reaction layer.


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