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US 8,540,929 B2Granted
Method for producing rare earth sintered magnet
AssigneeTDK Corporation
InventorsShuichiro Irie, Raitaro Masaoka, Toshiya Hozumi, Tetsuya Chiba
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Abstract
The present invention relates to a method for producing a rare earth sintered magnet including the steps of: molding a mixture of magnetic powder containing a rare earth compound and oil-extended rubber containing oil and rubber to produce a molded body; removing the oil-extended rubber from the molded body; and calcining the molded body from which the oil-extended rubber is removed to produce a rare earth sintered magnet 10.
Claims6
A method for producing a rare earth sintered magnet, the method comprising the steps of:
- molding a mixture of magnetic powder containing a rare earth compound and oil-extended rubber containing oil and rubber to produce a molded body;
- removing the oil-extended rubber from the molded body;
- and
- calcining the molded body from which the oil-extended rubber is removed to produce a rare earth sintered magnet,
- wherein the rubber is at least one selected from a group consisting of polyisobutylene, ethylene-propylene rubber, styrene-butadiene rubber, butadiene rubber, isoprene rubber, butyl rubber and ethylene-propylene diene monomer rubber.
2 more elements
Dependencies are inferred from the claim text.