高磁通密度铁粉芯的研发进展

Recent developments in iron powder cores with high magnetic flux density

综合评述了国外高磁通密度铁粉芯的性能,介绍了几种材料的制备技术,包括MgO绝缘膜及其铁粉芯的制备、耐高温树脂绝缘膜包覆铁粉芯的制备、Sr-B-P-O磷酸盐绝缘膜及其铁粉芯的制备,以及高密度成型的加热模腔润滑技术等。

The characteristics of iron powder cores with high magnetic flux density were reviewed.And their preparation technique,including the fabrication processes in the MgO insulation coating film and respective iron powder cores,in cores based on the iron powder coating by high operating temperature-resin,and in cores made by iron powder coated with phosphate glass insulator of Sr-B-P-O system,as well as high density compacting method with warm compaction-die wall lubrication,were introduced.