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JP2006249456A R-fe-b-based rare earth sintered magnet and method for manufacturing the same 有权
标题翻译：基于R-FE-B的大地烧结磁体及其制造方法
公开(公告)号：JP2006249456A
公开(公告)日：2006-09-21
申请号：JP2005063795
申请日：2005-03-08
申请人： Neomax Co Ltd , 株式会社Neomax
发明人： HARIMOTO DAISUKE , MATSUURA YUTAKA
IPC分类号： C22C33/02 , B22F1/00 , C22C38/00 , H01F1/053 , H01F1/08 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an R-Fe-B-based rare earth sintered magnet by which a sintered magnet having a high degree of orientation can be obtained using press forming. SOLUTION: Fine powder of a first alloy having a composition consisting of 11-18 at.% of at least one rare earth element selected from the light rare earth elements, 4-12 at.% of an element A (boron or a boron-carbon mixture) and the balance an element T which is Fe or a mixture of Fe and another transition metal and trace additive elements M with inevitable impurities is mixed with fine powder of a second alloy having a composition consisting of 10-35 of at.% at least one rare earth element selected from the heavy rare earth elements, 0-10 at.% of the element A (boron or the boron-carbon mixture) and the balance the element T which is Fe or the mixture of Fe and another transition metal and the trace additive elements M with inevitable impurities, the resulting mixed powder is compacted while applying a reversal magnetic field as an orienting magnetic field, and then sintering is carried out. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种制造R-Fe-B系稀土烧结磁体的方法，通过该方法可以通过冲压成型获得具有高取向度的烧结磁体。解决方案：具有由11-18％（重量）的至少一种选自轻稀土元素，4-12％（元素）的元素A的稀土元素组成的第一合金的细粉末（硼或硼 - 碳混合物），余量为Fe或Fe与另一种过渡金属和痕量添加剂元素M与不可避免的杂质的混合物的元素T与第二合金的细粉末混合，该第二合金的组成由10-35 至少一种选自重稀土元素的稀土元素，元素A的0-10％（硼或硼 - 碳混合物），余量为Fe的元素T或Fe 另一种过渡金属和痕量添加元素M具有不可避免的杂质，所得到的混合粉末在施加反转磁场作为定向磁场的同时被压实，然后进行烧结。版权所有（C）2006，JPO＆NCIPI

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