Permanent magnet manufacturing method and permanent magnet
AssigneeMINEBEA MITSUMI Inc.
InventorsYu OKAWARA, Haruhiro KOMURA
Life of this patent
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Abstract
A permanent magnet manufacturing method includes at least a magnetization target forming step of molding a magnetization target by applying a predetermined pressure to a magnet powder and a thermosetting resin, and a heating step of heating the magnet powder to the Curie point or higher while permanent magnets of a field magnet part are brought close to the magnetization target placed on a base member to magnetize the magnet powder and melting and curing the thermosetting resin to allow the magnetization target to fixedly adhere to the base member.
Claims7
A permanent magnet manufacturing method comprising at least:
- a magnetization target forming step of molding a magnetization target by applying a predetermined pressure to a magnet powder and a thermosetting resin;
- and
- a heating step of heating the magnet powder to the Curie point or higher while a permanent magnet of a field magnet part is brought close to the magnetization target placed at a base member to magnetize the magnet powder and melting and curing the thermosetting resin to fixedly adhere the magnetization target to the base member.
A permanent magnet comprising:
- a magnetization target formed in a ring shape and having a magnetized region and a non-magnetized region;
- and
- a base member fixedly adhered to the magnetization target,
- wherein an upper end part of the base member fixedly adhered to the magnetization target is a flat surface not protruding to either side in a vertical direction.
Dependencies are inferred from the claim text.