• Metallizing Equipment Co Private Limited

Arc Spraying Of Aluminium Tubing

Metallizing Equipment Co Pvt Ltd offers Arc Spraying of continuously extruded, multi-void Aluminium Tubing. Corrosion of heat exchangers for automotive air conditioning units can be a major problem. The unit is often located near the front grille of the vehicle and hence is exposed to a severely corrosive environment, with road salts, rain and high temperatures all contributing to high corrosion rates. In order to reduce the rate of corrosion, historically several methods have been tried; zinc diffusion by flux brazing, sacrificial anodes of zinc, tin, or indium; chromating and painting. Due to inherent production difficulties, poor corrosion resistance, pollution, restriction in plating and high costs, none of these treatments provide an optimum solution. Arc sprayed zinc offers equal or higher corrosion resistance, lower production cost and reduced pollution than other competing processes. Arc spray method: zinc coating is carried out 'in line' with the extrusion press. The plant can be installed on to either new or existing lines. The number of individual arc spray guns required is dependent on the number of extrusions being produced by the press, two guns being used for each tube (one per side). The guns are located on adjustable mounts, angled to allow even coverage of both flat parallel section and side section of the extrusion.