RARE-EARTH PERMANENT MAGNET, RARE-EARTH PERMANENT MAGNET MANUFACTURING METHOD, AND RARE-EARTH PERMANENT MAGNET MANUFACTURING DEVICE

There are provided a rare-earth permanent magnet, and a method for manufacturing a rare-earth permanent magnet and a system for manufacturing a rare-earth permanent magnet, capable of achieving improved shape uniformity. Magnet material is milled into magnet powder, and the milled magnet powder is f...

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Main Authors TAIHAKU KEISUKE, OKUNO TOSHIAKI, KUME KATSUYA, OMURE TOMOHIRO, OZEKI IZUMI, OZAKI TAKASHI, YAMAMOTO TAKASHI
Format Patent
LanguageEnglish
Korean
Published 17.11.2014
Subjects
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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Summary:There are provided a rare-earth permanent magnet, and a method for manufacturing a rare-earth permanent magnet and a system for manufacturing a rare-earth permanent magnet, capable of achieving improved shape uniformity. Magnet material is milled into magnet powder, and the milled magnet powder is formed into a formed body 40. The formed body 40 is calcined and then sintered using a spark plasma sintering apparatus 45, so that a permanent magnet 1 is manufactured. A die unit 46 included in the spark plasma sintering apparatus 45 that performs spark plasma sintering at least includes in one direction an inflow hole 50 configured to receive inflow of part of the pressurized formed body.
Bibliography:Application Number: KR20147028185