Manufacturing method of rare earth magnet

A manufacturing method of a rare earth magnet from a plurality of magnetic granular materials, each of the plurality of magnetic granular materials including a plurality of laminated flake-shaped rare earth magnetic powder particles and a binder compound that binds the plurality of rare earth magnetic powder particles, wherein

• the binder compound has a thermal decomposition temperature lower than the melting point of the plurality of rare earth magnetic powder particles, and is thermally decomposable at a temperature equal to or higher than the thermal decomposition temperature, and
• the manufacturing method includes:
• a binder removing step of heating the plurality of magnetic granular materials to a temperature equal to or higher than the thermal decomposition temperature to thermally decompose the binder compound, thereby obtaining a plurality of degreased magnetic granular materials by removing the binder compound from the plurality of magnetic granular materials;
• and
• a hot plastic working step of performing hot plastic working on the plurality of degreased magnetic granular materials obtained in the binder removing step to obtain the rare earth magnet.