PROCEDE D'ASSEMBLAGE D'UNE CATHODE POUR TUBE A RAYONS CATHODIQUES

摘要

Process for assembling a cathode for electron gun comprising a body 1 of emissive material, a cup 13 into which the body of emissive material is inserted, a substantially cylindrical metal skirt 2, the said process comprising the following successive steps: insertion of the cup into one of the open ends of the metal skirt welding of the cup to the skirt crimping of the body/cup/skirt assembly by lateral squeezing at the level of the weld zone in such a way as to cause an indent-like deformation 24 of the lateral face of the body.