| 摘要 |
FIELD: electricity.SUBSTANCE: electron beam gun contains a cathode pack which includes a casing, an insulator and a cathode. The cathode pack is installed at the intermediate casing. In the intermediate casing at the cathode pack side there is an anode and vacuum pipeline at the lateral side. The intermediate casing is installed at a flange of the focusing unit equipped with a heat exchanger and adapted for installation of a coil unit at the flange side. The heat exchanger is formed by a casing of the focusing unit with a spiral slot at its cylindrical surface and the housing. At the flange of the focusing unit there are pipe unions of the heat exchanger, feed channels and a channel for the coil unit outputs. Each cathode pack has a cover equipped with pipe unions placed at a lateral side of the cover. Fluoroorganic fluid is used in the cathode pack as an insulating heat medium. The cathode pack casing is connected to the intermediate casing by a hinge and clamps.EFFECT: simplified maintenance of electron beam gun and increase in operating space for treatment of parts.7 cl, 6 dwg |
