JP2766681B

PURPOSE:To obtain alloy powder having excellent mechanical property of a green compact and being suitable to raw material for sintered magnet by heating the specific mixed material powder under non-oxidizing atmosphere, heating after executing wet treatment to reaction generating mixed material and...

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Bibliographische Detailangaben
Hauptverfasser:	SHIOTANI KATSUHIKO, MATSUYAMA FUMIO
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:	PURPOSE:To obtain alloy powder having excellent mechanical property of a green compact and being suitable to raw material for sintered magnet by heating the specific mixed material powder under non-oxidizing atmosphere, heating after executing wet treatment to reaction generating mixed material and finely pulverizing. CONSTITUTION:Rare earth metal oxide powder or this powder and rare earth metal powder, iron-containing powder, boron-containing powder and one or more kinds selected from alkali (earth) metal and these hydride, are mixed. This mixed material is heated at 900-1200 deg.C under non-oxidized atmosphere. The wet treatment for allowing the obtd. reaction generating mixed material to react with water and vacuum drying are executed. This powder is heated at 600-1100 deg.C and after cooling, this is finely pulverized to make the fine powder having 1-10mum average particle diameter. The obtd. rare earth metal-iron-boron series alloy powder is suitable to the sintered magnet.