MAGNETIC POWDER, DUST CORE, MOTOR, AND REACTOR

According to the present invention, a magnetic powder for a dust core, which is excellent in terms of insulation properties without causing a decrease in the dust core magnetic flux density, a dust core comprising the magnetic powder, and a motor or a reactor having a core composed of the dust core...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ICHIGOZAKI DAISUKE, HOSHINA EISUKE, KITANO TOMOYASU
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CASTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION 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:	According to the present invention, a magnetic powder for a dust core, which is excellent in terms of insulation properties without causing a decrease in the dust core magnetic flux density, a dust core comprising the magnetic powder, and a motor or a reactor having a core composed of the dust core are provided. Therefore, a magnetic powder 10 for a dust core is characterized in that relatively hard oxide fine powder particles 2 are dispersed over and fixed to the surface of a soft magnetic metal powder particle 1, and that a relatively soft insulating coat 3 is fixed to the oxide fine powder particles 2 and portions where the dispersed and fixed oxide fine powder particles 2 do not exist on the surface of the soft magnetic metal powder particle 1.