发明名称 |
METHOD FOR PRODUCING MAGNETS USING POWDER METALLURGY |
摘要 |
The invention relates to a novel method for producing magnets (especially applicable to the production of magnets containing rare earths). The novelty of the method lies in its use of a type of electrical consolidation (such as so-called electrical resistance sintering, ERS, or so-called electrical discharge consolidation, EDC, but not necessarily one of the these) as a substitute for the conventional cold pressing and sintering method which is usually used. The method according to the invention achieves: (1) combining the compacting/sintering steps, significantly cutting the duration thereof and reducing the magnitude of the working pressures; (2) implementing the steps of magnetic aligning, pressing/sintering, heat treatment and magnetising in the same matrix; and (3) rendering superfluous the use of protective atmospheres during the sintering process. |
申请公布号 |
EP3093857(A1) |
申请公布日期 |
2016.11.16 |
申请号 |
EP20140876586 |
申请日期 |
2014.12.29 |
申请人 |
UNIVERSIDAD DE SEVILLA;UNIVERSIDAD DE HUELVA |
发明人 |
MONTES MARTOS, JUAN MANUEL;CINTAS FÍSICO, JESÚS;GÓMEZ CUEVAS , FRANCISCO;TERNERO FERNÁNDEZ, FÁTIMA |
分类号 |
H01F1/055;C22C1/04;C22C19/00;C22C33/02;C22C38/00 |
主分类号 |
H01F1/055 |
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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