| 简介 |
PROBLEM TO BE SOLVED : To provide a magnet manufacturing method capable of obtaining a magnet with a sufficiently high Br and an excellent HcJ even when a heat-treatment temperature is relatively low.
SOLUTION : A magnet manufacturing method comprises a first step of adhering a heavy rare earth compound containing Dy or Th as a heavy rare earth element to a sintered body of a rare earth magnet and a second step of heat-treating the sintered body to which the heavy rare earth compound adhered. The heavy rare earth compound is DyFe, TbFe, DyFeH, TbFeH, DyNdFe, or DyNdFeH. The first step applies a slurry in which the heavy rare earth compound is dispersed into a solvent to the sintered body.
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