RARE EARTH MAGNET COMPACT AND MANUFACTURING METHOD OF THE SAME, AND MAGNET MOTOR WITH RARE EARTH MAGNET

PROBLEM TO BE SOLVED: To provide, by a cold spray method, a rare earth magnet compact improved in peeling of deposits due to a residual strain and having excellent magnetic characteristics.SOLUTION: In a rare earth magnet compact, by a cold spray method, non-magnetic metal particles having an elasto...

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Bibliographic Details
Main Authors UEHARA YOSHITAKA, KAWASHITA NOBUO, NANBU TOSHIKAZU, TAKASHIMA KAZUHIKO, URAMOTO KIYOHIRO
Format Patent
LanguageEnglish
Published 19.08.2013
Subjects
ALLOYS
BASIC ELECTRIC ELEMENTS
CHEMISTRY
ELECTRICITY
FERROUS OR NON-FERROUS ALLOYS
INDUCTANCES
MAGNETS
METALLURGY
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:PROBLEM TO BE SOLVED: To provide, by a cold spray method, a rare earth magnet compact improved in peeling of deposits due to a residual strain and having excellent magnetic characteristics.SOLUTION: In a rare earth magnet compact, by a cold spray method, non-magnetic metal particles having an elastoplastic ratio of 50% or less, as well as rare earth magnet particles, are added, to reduce a residual strain and/or a repulsive force. In a solidification formation process, deposits are not peeled off to provide a compact having a thick film, and a theoretical density of 80% or more is achieved.
Bibliography:Application Number: JP20120020242