The invention discloses a
sintering process for
magnet production. The
sintering process specifically comprises the following steps of: S1, heating a
magnet compact to a first temperature and keepingthe temperature, and discharging volatile substances in the
magnet compact; S2, raising the temperature to a second temperature and keeping the temperature, and discharging gas impurities in the magnet compact; S3, heating the magnet compact to a third temperature,
sintering the magnet compact in a vacuum environment, and keeping the temperature; and S4, subjecting the magnet to
gas quenching andcooling through using a circulating
inert gas, and subjecting the magnet to
tempering treatment. According to the sintering process for magnet production, an
induction coil is used for directly heating the magnet, an
electric heating wire is used for preserving heat of the environment in a sintering furnace, and the problems that the magnet temperature rising speed is low, heating is uneven, the
heating time is long, consequently, intercrystalline phase distribution of the magnet is uneven, crystalline grains are thick and the performance of the magnet is affectedin the prior art are solved; and by introducing the cooled
inert gas into the sintering furnace, the problems that the magnet
cooling speed is low and the magnet sintering production efficiency is affected are solved.