How to deal with the surface of titanium tube
The alloying on the surface of titanium tube can also be referred to as a kind of coating, compared with the titanium oxide coating, it has the advantages of strong adhesion, wear resistance, corrosion resistance and so on. Compared with the titanium palladium alloy, the surface content of palladium is high, which saves precious metal palladium, reduces the cost, but also it has excellent performance.
The alumetizing on the surface of titanium tube can reduce the hydrogen absorption tendency of titanium, and the 88% aluminum oxide, 4% aluminum fluoride and 8% aluminum powder are coated on titanium parts after mixing, which is the best alumetizing condition, and the temperature is 810 degrees centigrade. The thickness and the structure of the aluminum layer are dependent on the holding time. Using the infiltration process to aluminize, the short time diffusion can get about 2 mm thick thin coating, which has good bonding strength and does not affect the mechanical properties of the matrix. The coating is mainly composed of titanium oxide phase, forming a barrier layer, which is very effective in preventing hydrogen permeation.
After plating palladium on titanium tube, it can be heated by different methods to make the plating layer diffuse to the surface layer of titanium tube to form the titanium palladium alloy layer, which can improve the corrosion resistance. Heat diffusion or laser surface remelting are feasible in principle.
The alumetizing on the surface of titanium tube can reduce the hydrogen absorption tendency of titanium, and the 88% aluminum oxide, 4% aluminum fluoride and 8% aluminum powder are coated on titanium parts after mixing, which is the best alumetizing condition, and the temperature is 810 degrees centigrade. The thickness and the structure of the aluminum layer are dependent on the holding time. Using the infiltration process to aluminize, the short time diffusion can get about 2 mm thick thin coating, which has good bonding strength and does not affect the mechanical properties of the matrix. The coating is mainly composed of titanium oxide phase, forming a barrier layer, which is very effective in preventing hydrogen permeation.
After plating palladium on titanium tube, it can be heated by different methods to make the plating layer diffuse to the surface layer of titanium tube to form the titanium palladium alloy layer, which can improve the corrosion resistance. Heat diffusion or laser surface remelting are feasible in principle.
