Powder magnetic core and production method for same
AssigneePanasonic Corporation
InventorsShota Nishio, Takeshi Takahashi, Junichi Kotani
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Abstract
A production method for a powder magnetic core includes: mixing soft-magnetic metal powder with silicone resin including at least one functional group selected from carboxyl groups, mercapto groups, amino groups, and silanol groups for forming a mixture in which a surface of the soft-magnetic metal powder is coated with the silicone resin; drying the mixture for forming dry powder; pressurizing the dry powder for forming a compact; and heat-treating the compact.
Claims10
A production method for a powder magnetic core, the method comprising:
- mixing soft-magnetic metal powder with silicone resin including at least one functional group selected from carboxyl groups, mercapto groups, amino groups, and silanol groups for forming a mixture in which a surface of the soft-magnetic metal powder is coated with the silicone resin;
- drying the mixture for forming dry powder;
- pressurizing the dry powder for forming a compact;
- and
- heat-treating the compact.
A powder magnetic core formed by mixing soft-magnetic metal powder and silicone resin with each other so as to form a mixture in which a surface of the soft-magnetic metal powder is coated with the silicone resin, pressure-molding the mixture, followed by heat treatment,
- wherein the silicone resin includes at least one functional group selected from carboxyl groups, mercapto groups, amino groups, and silanol groups.
Dependencies are inferred from the claim text.