MAGNETIC CORE POWDER, DUST CORE, AND METHOD FOR PRODUCING MAGNETIC CORE POWDER

Provided is a powder (A) for a magnetic core for producing a powder magnetic core, the powder (A) for a magnetic core including: as a main component a granulated powder (1) obtained by granulating iron-based amorphous powder having been subjected to insulation treatment and having a particle size di...

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Bibliographische Detailangaben
Hauptverfasser:	OOHIRA Kouya, KAKO Noritaka, ARAKI Hikaru
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CASTING ELECTRICITY INDUCTANCES MAGNETS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS POWDER METALLURGY SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TRANSPORTING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	Provided is a powder (A) for a magnetic core for producing a powder magnetic core, the powder (A) for a magnetic core including: as a main component a granulated powder (1) obtained by granulating iron-based amorphous powder having been subjected to insulation treatment and having a particle size distribution falling within a range of from 1 μm to 200 μm; and glass powder having a softening point lower than a temperature of the annealing treatment. The granulated powder (1) is obtained by binding particles (2) of magnetic powder each formed of a particle (3) of the iron-based amorphous powder and an insulating coating (4) configured to coat the surface of the particle (3) to each other through use of a PVA aqueous solution having a viscosity of from 3 mPa·s to 25 mPa·s.