公开(公告)号：US06534564B2

公开(公告)日：2003-03-18

申请号：US09865082

申请日：2001-05-24

申请人： Francis G. Hanejko ,  Sydney Luk ,  Kalathur S. V. L. Narasimhan

发明人： Francis G. Hanejko ,  Sydney Luk ,  Kalathur S. V. L. Narasimhan

IPC分类号： B22C100

CPC分类号： B22F1/0059 ,  B22F2998/10 ,  B22F2999/00 ,  B22F3/02 ,  B22F2003/248 ,  B22F2202/15 ,  B22F2203/01

摘要： A method is provided for compacting metal-based powder compositions containing at least one thermoplastic material at temperatures below the glass transition temperature or melting temperature of the thermoplastic material to form a metal-based component. Preferably, compaction is carried out at temperatures ranging from ambient to about 55° C. The method of the present invention is particularly useful for making magnetic core components. The present invention also provides metal-based powder compositions useful for cold compaction. The metal based powder compositions contain metal-based particles containing no iron phosphate layer; a thermoplastic material selected from polyetherimides, polyphenylene ethers, polyethersulfones, polycarbonates, polyethylene glycol, polyvinyl acetate, polyvinyl alcohol or combinations thereof, and an oligomer of a polyamide.

摘要翻译： 提供了一种用于在低于热塑性材料的玻璃化转变温度或熔融温度的温度下压制含有至少一种热塑性材料的金属基粉末组合物以形成金属基组分的方法。 优选地，在环境温度至约55℃的温度下进行压实。本发明的方法对于制造磁芯组件特别有用。 本发明还提供了用于冷压缩的金属基粉末组合物。 金属粉末组合物含有不含铁磷酸盐层的金属类颗粒; 选自聚醚酰亚胺，聚苯醚，聚醚砜，聚碳酸酯，聚乙二醇，聚乙酸乙烯酯，聚乙烯醇或其组合的热塑性材料和聚酰胺的低聚物。