METHOD FOR COATING AND FACILITY FOR ITS IMPLEMENTATION Russian patent published in 2008 - IPC C23C14/35 B23H9/00 

FIELD: metallurgy.

SUBSTANCE: invention concerns coating field in vacuum. Particularly it concerns methods and facilities for coating on internal surface of odd-shaped details. Method includes rod-shaped cathode introduction into internal chamber of treated product, cathode is implemented of covering material, its fume and material vapor condensation on surface of treated detail. At that rod-shaped cathode is evaporated by cathode spots of vacuum arc, which are displaced on it butt surface by means of magnetic field through current contact jaw from nonretentive material. During the evaporation method rod-shaped electrode is introduces into detail till coincidental occurrence of its butt surface with pass border of detail diametrical surface to conical, then rod-shaped cathode is displaced backwards till overall derivation of it from treated detail. Facility contains rod-shaped cathode made of evaporated material, current contact jaw located coaxial to it, igniter electrode and solenoid for magnetic field creating. At that rod-shaped cathode is installed removable lengthwise of treated detail axis, current contact jaw which is anode is implemented from nonretentive material, at that part of current contact jaw distant from cathode is located in solenoid, axis of which coincides axis of treated detail.

EFFECT: providing of ability of coating on internal surfaces of details with small-bore chamber.

3 cl, 3 dwg