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The soft magnetic powder and iron-based core for a dust core and soft iron core 发明授权

2023-04-02 4720 70K 0

专利信息

申请日期 2025-07-09 申请号 JP2010031118
公开(公告)号 JP5513922B2 公开(公告)日 2014-06-04
公开国别 JP 申请人省市代码 全国
申请人 Kobe Steel Ltd1199
简介 PROBLEM TO BE SOLVED : To provide iron-based soft magnetic powder for a dust core with superior thermal stability, which can effectively insulate iron powder particles from one another even when rare metal, which is difficult to obtain and is expensive, is not used and even when an insulating material is reduced in amount for high-density molding, and is excellent in mechanical strength, and further can maintain electric insulation even when a high-temperature heat treatment is carried out; to provide a method of manufacturing the iron-based soft magnetic powder for the dust core; and to provide the dust core. SOLUTION : On a surface of the iron-based soft magnetic powder, a phosphoric acid-based conversion coating and a silicone resin coating are formed in order from inside, and the phosphoric acid-based conversion coating contains P, B, Mg, and Al. COPYRIGHT : (C)2011, JPO&INPIT


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