Surface coating thermal spraying treatment of aluminum alloy parts

       Surface coating treatment method of aluminum alloy parts - thermal spraying treatment is to heat the sprayed material with some form of heat source, and the heated material forms molten or semi-molten particles, which impact and deposit on the basic surface at a certain speed. On the surface, a spray coating with certain characteristics is formed. For the coating treatment of the surface of aluminum alloy parts, the thermal spraying method is a more mature and effective surface treatment method.



Thermal spray technology is a more mature and effective surface treatment method.



Advantages of thermal spraying technology: light equipment, on-site construction, flexible process, few operation procedures, quick repair, and reduced processing time;



The coating thickness can be controlled, etc. Thermal spray materials can be divided into metals and alloys, ceramics, organic polymer materials, composite materials, etc. according to the material properties.



The spraying process mainly includes flame spraying, plasma spraying, low pressure plasma spraying, water stabilized plasma spraying, etc.



Because thermal spraying technology can spray most solid engineering materials such as various metals and alloys, ceramics, plastics, and non-metals, it can be made into functional coatings with various properties, flexible construction and strong adaptability, but thermal spraying The bonding force of the coating obtained by this method to the substrate is relatively low, and the coating has many pores, which needs further improvement. At present, post-processing technologies for coatings formed by thermal spraying, such as laser cladding, sealing treatment, hot pressing, anodizing, etc., can further improve the corrosion resistance of aluminum alloys after spraying.