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METHOD FOR PREPARING SINTERED RARE EARTH-BASED MAGNET USING MELTING POINT DEPRESSION ELEMENT, AND SINTERED RARE EARTH-BASED MAGNET PREPARED THEREBY
METHOD FOR PREPARING SINTERED RARE EARTH-BASED MAGNET USING MELTING POINT DEPRESSION ELEMENT, AND SINTERED RARE EARTH-BASED MAGNET PREPARED THEREBY
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机译:熔点降低元件制备烧结稀土基磁铁的方法及由此制备的烧结稀土基磁铁
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摘要
According to the present invention, a method for preparing a sintered rare earth-based magnet according to the present invention comprises the steps of: heating an R-Fe-B based magnet powder to a predefined temperature to produce a sintered magnet, wherein R is a rare earth element or a combination of rare earth elements; coating the surface of the produced sintered magnet with a coating solution prepared by mixing a heavy rare earth powder and a melting point depression element powder in a solvent; and heat-treating the coated sintered magnet. A heavy rare earth element is efficiently diffused on the interface of the sintered magnet to improve the coercive force of the sintered magnet.;COPYRIGHT KIPO 2017
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