Powder for powder compacting magnetic core, powder compacting magnetic core, and these production manners

摘要

The powder for the powder compacting magnetic core which can improve mechanical strength with the hydrosilyl conversion reaction with the vinylsilane and the hydrosilane, without accompanying the decrease of magnetic property of the powder compacting magnetic core, the powder compacting magnetic core, and these production manners are offered. The powder 10 for the powder compacting magnetic core where insulating formation 3 was formed to the grain surface 21 of the magnetic powder which consists of magnetic grain 2, aforementioned insulating formation 3 in surface formation of the powder for the powder compacting magnetic core, vinylsilane has the high-molecular resin insulating formation 33 which includes 4 and the hydrosilane as an insulating formation 3.