发明名称 Method for the production of powder composite cores and powder composite core
摘要 A powder composite core is to be particularly dense and strong while being produced from soft magnetic alloys. In particular, the expansion of the heat-treated core is to be avoided. To produce this core, a strip of a soft magnetic alloy is first comminuted to form particles. The particles are mixed with a first binder having a curing temperature T1,cure and a decomposition temperature T1,decompose and a second binder having a curing temperature T2,cure and a decomposition temperature T2,decompose, wherein T1,cure<T2,cure≦̸T1,decompose<T2,decompose. The mix is pressed to produce a magnet core while the first binder is cured. The magnet core is then subjected to a heat treatment accompanied by the curing of the second binder at a heat treatment temperature TAnneal>T2,cure.
申请公布号 US2010237978(A1) 申请公布日期 2010.09.23
申请号 US20070308514 申请日期 2007.07.11
申请人 VACUUMSCHMELZE GMBH & CO. KG 发明人 BRUNNER MARKUS;REPPEL GEORG WERNER
分类号 H01F3/08;B29B9/10;B29B9/12;H01F1/14 主分类号 H01F3/08
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