The invention relates to a method of welding ceramic shell. The method includes: (1) putting a seal ring and a dip copper billet into a welding die and adding silver and brazing welding materials in the weld of the seal ring and the dip copper; (2) putting the welding die into the welding stove and welding them at the temperature of 800-900 DEG C; (3) putting the welded the seal ring and the dip copper with a ceramic ring, a flange loop and a gate lead tube into the welding die and adding silver and brazing welding materials in the weld of them; (4) putting the welding die filled with the welding materials said in step (3) into the welding stove and welding them at the temperature of 800-900 DEG C. The invention has an advantage of that it can guarantee the invariability of the smoothness and the depth of parallelism of the welded dip copper. |