Titanium-gold plating process for aluminium profiles belongs to coating technology. It is based on conventional titanium plating process to add pre-plating and electroplating process steps. Aluminum profiles process is to place activated plated parts in salt and hydrochloric acid aqueous solution for chemical treatment.
The bath composition of electroplating process includes nickel sulfate, nickel chloride, boric acid, sodium dodecyl sulfate, saccharin and brightener. The process has the advantages of simplicity, practicability and good effect. The film hardness of Ti-Au-Al profiles prepared by this process is HV_1500, and the wear resistance is 150 times higher than that of 22K gold plating under the same conditions. It can be processed into various bright series of products such as gold, color and black.