Titanium plating process on aluminum profiles

The aluminum-plated titanium plating process belongs to the coating technology. It is a step of adding a pre-plating and electroplating process on the basis of the conventional titanium plating process. The pre-plating process is to chemically treat the activated plated parts in an aqueous solution of salt and hydrochloric acid; The plating composition of the electroplating process includes nickel sulfate, nickel chloride, boric acid, sodium lauryl sulfate, saccharin, and brightener. The process has the advantages of simplicity, practicality, and good effect, and the titanium-aluminum profile obtained by the process has the same The hardness of the film layer is HV≈1500, and it is 150 times more wear-resistant than the 22K gold plated under the same conditions. It can be processed into various kinds of bright aluminum products of various forms such as gold, color and black.

The aluminum profile titanium plating process includes material selection, polishing, chemical degreasing, water washing, activation, and vacuum titanium plating process steps, and is characterized in that it further comprises:

a. Pre-plating process, wherein the titanium-aluminum profile which is activated and rinsed with water is placed in a liquid consisting of salt, hydrochloric acid and water for chemical treatment, the treatment temperature is normal temperature, and the treatment time is until the liquid undergoes a violent chemical reaction. until;

b. Electroplating process, the composition of the plating solution includes nickel sulfate, nickel chloride, boric acid, sodium lauryl sulfate, saccharin, brightener, process conditions: current 3-4A / dm cathode movement, 5-7A/dm Air agitation, bath temperature 50-60 ° C, pH 3.9-4.2, plating time 15 minutes.