Aluminum Black Truss

We all know that aluminum is widely used in life and industry, and there are many types of surface treatment methods for aluminum, usually including anodizing treatment, chemical conversion treatment, micro-arc oxidation treatment, electroplating treatment, electroless plating treatment or surface organic coating (powder spraying or painting) and so on. The Aluminum Black Truss most widely used process is anodizing and Power painting. 1. Prevent corrosion of aluminum products on the aluminum surface can be used as a protective layer. The oxide film obtained by anodizing aluminum in chromic acid solution is dense and has good corrosion resistance. The pores of the oxide film obtained from the sulfuric acid solution are larger than the former, but its film layer is thicker and the adsorption capacity is very strong, and its corrosion resistance is also very good if properly filled and sealed. In particular, chromic acid anodizing is particularly suitable for anodizing rivets and welds. That's why more and more people choose Stage Aluminum Truss for events. 2. As a hard wear layer By hard anodizing aluminum and aluminum alloys, a thick and hard Al2O3 film layer can be obtained on its surface. This film layer not only has high hardness and thickness, but also has low roughness. In sulfuric or oxalic acid solutions, a hard and thick oxide film can also be obtained on aluminum products by anodizing. The porous thick oxide film can store lubricating oil, so it can be effectively applied to aluminum products that work in friction states, such as engine cylinders and pistons of automobiles and tractors, which can greatly improve their wear resistance after anodizing. 3. As a base layer for spray paint Due to the porosity and good adsorption capacity of anodized film, it can be used as a base layer for spray paint and other organic films, so that the paint film and organic film are firmly combined with the product, thereby increasing its corrosion resistance. 4. As the bottom layer of plating Before electroplating, aluminum and aluminum alloy products must be applied to the bottom layer before electroplating. There are many ways to apply the bottom layer to the surface of the matrix, in addition to electro-galvanizing, galvanization, and electroless nickel plating, anodizing treatment is also one of the important methods.