DEVICE FOR APPLICATION OF COAT ON SLIDING BEARINGS BY VACUUM METHOD Russian patent published in 2004 - IPC

FIELD: devices for application of coats including one intermediate layer and one anti-friction layer on sliding bearings by vacuum method. SUBSTANCE: proposed device has vacuum chambers located near each other and separated by vacuum valves or pressure stages. Located successively in way of motion are sluice chamber for introduction of sliding bearings in vacuum, one preliminary treatment chamber, one first coating chamber, one second coating chamber and sluice chamber for removal of sliding bearings from vacuum after application of coat. Located in preliminary treatment chamber is etching unit for stationary plasma etching of sliding bearings by means of magnetic field. Located in first coating chamber under sliding bearings is magnetron spraying source. Electron-beam evaporator with evaporating crucible is located in second coating chamber. Buffer sections are located before and after section where coats are applied by electron-beam evaporator. Sliding bearings are held in carrying members where required temperature conditions may be maintained. EFFECT: possibility of applying several coats from different materials and different thickness. 17 cl, 1 dwg