Iron base soft magnetic powder, powder magnetic core for powder core, and manufacturing method thereof

摘要

In a powder magnetic core, an iron based soft magnetic powder for powder core is capable of producing a low iron loss with high density.The present invention relates toHaving a fused aluminum phosphate layer on the surface of an iron based soft magnetic powderFurther, an iron based soft magnetic powder for a powder magnetic core having a silicone resin layer on the surface of the fused aluminum phosphate layer, andThe fused aluminum phosphate layer is a continuous film.Iron based soft magnetic powderFor 100 mass% of the mass of the fused aluminum phosphate layer and the silicone resin layerThe total mass of the fused aluminum phosphate layer and the silicone resin layer isIt is an iron base soft magnetic powder for powder core.