发明名称 |
METHOD OF MAKING SINTERED COMPACT FOR RARE EARTH MAGNET |
摘要 |
A method of making a sintered body for a rare earth magnet includes the steps of (a) preparing a first coarse powder by coarsely pulverizing a rare earth alloy sintered body by a hydrogen pulverization process, (b) preparing a first fine powder by finely pulverizing the first coarse powder, (c) preparing a second fine powder by pulverizing an alloy block of a rare earth alloy material, and (d) sintering a mixed powder including the first and second fine powders. The first and second fine powders each includes a main phase represented by (LR1-xHRx)2T14A, where T is Fe and/or at least one non-Fe transition metal element; A is boron and/or carbon; LR is at least one light rare earth element; HR is at least one heavy rare earth element; and 0</=x<1. |
申请公布号 |
WO02099823(A1) |
申请公布日期 |
2002.12.12 |
申请号 |
WO2002JP05171 |
申请日期 |
2002.05.28 |
申请人 |
SUMITOMO SPECIAL METALS CO., LTD.;TOKUHARA, KOKI;MORIMOTO, HITOSHI |
发明人 |
TOKUHARA, KOKI;MORIMOTO, HITOSHI |
分类号 |
H01F1/057;(IPC1-7):H01F1/057 |
主分类号 |
H01F1/057 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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