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RARE EARTH BOND MAGNET 发明申请

2023-05-21 3510 57K 0

专利信息

申请日期 2025-07-09 申请号 JP2016255495
公开(公告)号 JP2017135372A 公开(公告)日 2017-08-03
公开国别 JP 申请人省市代码 全国
申请人 MINEBEAMITSUMI INC
简介 PROBLEM TO BE SOLVED : To provide a rare earth bond magnet which is less in demagnetization to a temperature change and high in physical heat resistance. SOLUTION : A rare earth bond magnet comprises : rare earth-iron based magnet powder; and a thermosetting resin composition. In the thermosetting resin composition, dicyclopentadiene type epoxy resins including a predetermined structure of which the average of repeating units n is 1-3 as a main agent, and dicyandiamide as a hardening agent are blended. Preferably, of the dicyclopentadiene type epoxy resins blended in the thermosetting resin composition, a dicyclopentadiene type epoxy resin of which the repeating unit n is 1 accounts for 70% or more. SELECTED DRAWING : Figure 1 COPYRIGHT : (C)2017, JPO&INPIT


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