METHOD OF PRODUCING SOFT MAGNETIC MATERIAL

PROBLEM TO BE SOLVED: To provide a production method for obtaining a soft magnetic material which has satisfactory soft magnetic properties such as high magnetic flux density, low coercive force and high maximum magnetic permeability. SOLUTION: In the production method, powder for a soft magnetic ma...

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Bibliographische Detailangaben
1. Verfasser:	NAKAI MASUMI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CASTING CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS INDUCTANCES MAGNETS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a production method for obtaining a soft magnetic material which has satisfactory soft magnetic properties such as high magnetic flux density, low coercive force and high maximum magnetic permeability. SOLUTION: In the production method, powder for a soft magnetic material and a binder are kneaded, the kneaded material is subjected to injection molding into a desired shape so as to be a molding, thereafter, the binder is removed from the molding, next, the molding is sintered to obtain a sintered compact, and subsequently, the sintered compact is subjected to hot hydrostatic press, so that the crystal grains are grown preferably to 1.5 times or higher. The invention is preferably applied to an Fe-Si sintered compact comprising 4 to 8 mass% Si. COPYRIGHT: (C)2005,JPO&NCIPI