Defoaming device for aluminum nitride tape casting slurry

The utility model discloses an aluminum nitride tape casting slurry defoaming device, and relates to the technical field of aluminum nitride ceramic production. The aluminum nitride tape casting slurry defoaming device comprises a supporting plate and a lifting mechanism, and a mounting column is fixedly mounted at the top of the supporting plate; the lifting mechanism is arranged in the mounting column and comprises a band-type brake motor, a threaded rod, an internal thread block, a connecting rod and a sealing cover, the band-type brake motor is fixedly mounted at the top of the mounting column, the external wall of the threaded rod is in threaded connection with the internal thread block, and the connecting rod is fixedly mounted on one side of the internal thread block; one end of the connecting rod is fixedly connected with one side of the sealing cover, and the sealing cover is driven by the band-type brake motor to ascend and descend. The vacuum box can be conveniently and completely opened, so that a