RH DIFFUSION SOURCE AND MANUFACTURING METHOD THEREFOR AND PRODUCTION METHOD OF R-T-B-BASED SINTERED MAGNET

RH DIFFUSION SOURCE AND MANUFACTURING METHOD THEREFOR AND PRODUCTION METHOD OF R-T-B-BASED SINTERED MAGNET

PROBLEM TO BE SOLVED: To provide an RH diffusion source for use in RH supply diffusion treatment which can reduce the density and make the thickness uniform and thin, and to provide a manufacturing method therefor, and a production method of an R-T-B-based sintered magnet in which RH supply diffusio...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SETO TORU, MORIMOTO HIDEYUKI
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 an RH diffusion source for use in RH supply diffusion treatment which can reduce the density and make the thickness uniform and thin, and to provide a manufacturing method therefor, and a production method of an R-T-B-based sintered magnet in which RH supply diffusion treatment is carried out by using the RH diffusion source.SOLUTION: An RH diffusion source is used for a method for diffusing a heavy rare earth element RH into an R-T-B-based sintered magnet material (R is at least one kind of rare earth element and always containing Nd, T is at least one kind of transition metal element and always containing Fe), composed of Dy, and has a density of 5-7 g/cm.