| abstract |
To provide a sintered magnet manufacturing method capable of manufacturing a sintered magnet excellent in magnetic characteristics with high productivity. A step of wet pulverizing magnetic powder in the presence of a surfactant, a step of drying the wet-pulverized magnetic powder 20 to obtain a magnetic powder 20 to which the surfactant is adhered, and a step of drying A step of heating and kneading the magnetic powder 20 together with a binder resin to form pellets, a step of melting the pellets and injection molding in a mold to which a magnetic field is applied, to obtain a preform, And a step of firing the preform. [Selection] Figure 2 |