METHOD FOR PRODUCING RARE EARTH SINTERED MAGNET AND POWDER CONTAINER FOR RARE EARTH SINTERED MAGNET

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The present invention is aimed at providing an easy and inexpensive method for producing a sintered rare-earth magnet having cavities, such as slits, for making the magnet less likely to be influenced from eddy currents and/or performing a grain boundary diffusion process. The method for producing a sintered rare-earth magnet according to the present invention is characterized by performing the following successive processes : a filling process ((a), (b)) for filling a powder 19 of rare-earth magnet alloy into a powder-filling container 10 together with a cavity-forming member 14; an aligning process (b) for aligning the rare-earth magnet alloy powder 19 in a magnetic field; and a sintering process (e) for sintering the rare-earth magnet alloy powder 19 by heating the rare-earth magnet alloy powder 19 in a state of being held in the powder-filling container 10, wherein (d) the cavity-forming member is removed after the aligning process is completed and before the rare-earth magnet alloy powder begins to be sintered.