MANUFACTURE OF RARE EARTH METAL PERMANENT MAGNET

PURPOSE:To obtain the superior permanent magnet with the following features by applying special heat treatment to the R2CO17 system rare earth metal system permanent magnet materials having specific composition: the small dependency on composition in the composition region, the good angular characte...

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Bibliographische Detailangaben
Hauptverfasser:	ISHIHARA KINYA, UCHIDA KIMIO, UNO RYOJI, TOBE HIROYUKI, SATO TAKAYOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INDUCTANCES MAGNETS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain the superior permanent magnet with the following features by applying special heat treatment to the R2CO17 system rare earth metal system permanent magnet materials having specific composition: the small dependency on composition in the composition region, the good angular characteristics of the 4piI-H curve, and the large attraction property. CONSTITUTION:For the material of R2CO17 rare earth metal system permanent magnet, the alloy powder of the following composition defined by weight percentage is used: 22