| 简介 |
A method for easily producing a rare earth sintered magnet, which has a void such as a slit for reducing the influence of eddy current and/or diffusing grain boundaries, at low cost. The method for producing a rare earth sintered magnet is characterized by performing, sequentially in the following order, filling steps ((a), (b)) wherein a powder container (10) is filled with a rare earth magnet alloy powder (19) together with a void-forming member (14), an orientation step (c) wherein the rare earth magnet alloy powder (19) is oriented in a magnetic field, and a sintering step (e) wherein the rare earth magnet alloy powder is sintered by heating the powder container (10) together with the rare earth magnet alloy powder (19) filled therein, and performing a removal step (d) wherein the void-forming member is removed, after the orientation step but before the sintering of the rare earth magnet alloy powder is started. |
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