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R-T-B-BASED RARE EARTH MAGNET PARTICLES, PROCESS FOR PRODUCING THE R-T-B- BASED RARE EARTH MAGNET P 发明申请

2023-10-03 4900 681K 0

专利信息

申请日期 2025-07-11 申请号 US13835754
公开(公告)号 US20130265128A1 公开(公告)日 2013-10-10
公开国别 US 申请人省市代码 全国
申请人 TODA KOGYO CORP
简介 R-T-B-based rare earth magnet particles are produced by an HDDR treatment which comprises a first stage HD step of heating particles of a raw material alloy having a composition of R, B and Co in an inert atmosphere or in a vacuum atmosphere and then replacing the atmosphere with a hydrogen-containing gas atmosphere in which the raw material alloy particles are held in the same temperature range and a second stage HD step of heating a material obtained in the first stage HD step in which the material is held in the hydrogen-containing gas atmosphere.


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