COATING FOR PARTS MADE OF TITANIUM OR THE ALLOY THEREOF FOR PREVENTING COLD WELDING

摘要

The invention relates to a PVD method for coating parts made of titanium of the alloy thereof for preventing cold welding. The inventive method consists a) in positioning parts in a container, b) in producing vacuum, c) in depositing a first metal or a first metal alloy in a nitrogen and acetylene atmosphere, d) in depositing a second metal or a second metal alloy in a nitrogen and acetylene atmosphere e) in repeating the steps c) and d) until a sufficient thickness is obtainable, f) in ventilating the container, g) in removing parts from the container and h) in cleaning said parts in an appropriate cleaning bath.