Permeation device and method

The invention discloses a permeation device and method. The permeation device comprises a heating chamber, a rotary tray, rotary brackets, material boxes, a lifting mechanism and a transmission device, wherein the heating chamber is provided with an annular groove, and the rotary tray is arranged below the opening end of the lower end of the heating chamber; the rotary brackets are mounted on the rotary tray; the material boxes are arranged on the rotary brackets; the rotary brackets and the material boxes can ascend and descend under the action of the lifting mechanism; the rotary brackets can rotate in the annular groove under the action of the transmission device and revolve around the center axis of the rotary tray. The permeation method comprises the steps of material charging, vacuum pumping, high-temperature permeation, cooling, material taking and other steps. By means of the permeation device and method, the condition equality of the magnet positions and the condition equality of the heating environment are both achieved, so that the uniformity of the temperature condition required by sintered magnets in the high-temperature permeation and air cooling process is satisfied, and the consistency of properties of products is guaranteed.