Consumable cathode for electric-arc metal vaporizer

摘要

PCT No. PCT/SU81/00014 Sec. 371 Date Oct. 21, 1982 Sec. 102(e) Date Oct. 21, 1982 PCT Filed Feb. 23, 1982 PCT Pub. No. WO82/02906 PCT Pub. Date Sep. 2, 1982.A consumable cathode used in electric-arc metal vaporizers to produce multi-component coatings on articles. The cathode has a unitary design, consisting of a plurality of layers of different metals, the number of the layers being determined by the number of coating components. The layers are arranged so that the value of the cathode potential drop of the metals decreases from the geometric axis of the consumable cathode to the periphery thereof in order to ensure a uniform vaporization of the cathode layers. The cathode spot is retained on the working end of the consumable cathode with the help of a solenoid-generated magnetic field.