| 简介 |
The present invention provides a method for producing a long and large-sized rare earth sintered magnet having a large size in a magnetic field application direction in which a single magnet body in each portion has uniform and high magnetic characteristics. Disclosed is a method for producing a rare earth sintered magnet, including particular steps of : 1) preparing a slurry; 2) preparing a cavity that is enclosed with a mold, an upper punch and a lower punch; 3) applying a magnetic field of 1.5 T or more in the cavity, and supplying the slurry at a flow rate of 20 to 600 cm3/second, to fill the cavity with the slurry; 4) producing a molded body of the alloy powder by press molding in the magnetic field; and 5) sintering the molded body. |
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