Aluminum alloy ladder bridge has a variety of surface treatment technologies designed to enhance its aesthetics, corrosion resistance, wear resistance and service life.
Aluminum alloy ladder bridge often adopts sandblasting technology. Sand blasting uses the impact of high-speed sand flow to clean and roughen the metal surface, improve the surface cleanliness and roughness, and thus enhance the bonding between the coating and the substrate.
Passivation is another common aluminum alloy surface treatment technology. Through chemical or electrochemical methods, a dense passivation film is formed on the metal surface, which can significantly improve the corrosion resistance of aluminum alloy.
Coloring treatment can add rich colors to the aluminum alloy ladder bridge. Through processes such as aluminum oxidation coloring or aluminum electrophoresis coloring, various colors are formed on the oxide film to meet different decorative needs.
Chemical polishing can make the surface of aluminum alloy ladder bridge obtain a bright and smooth appearance. This polishing method has simple equipment, is not limited by the size of the workpiece, and has low processing cost.
Chemical oxidation film treatment can form an oxide film with a thickness of about 0.5~4 microns on the surface of aluminum alloy. This film is porous and soft, has good adsorption properties, and can be used as a base layer for organic coatings.
Electrophoresis technology is also an important method for surface treatment of aluminum alloy ladder bridge. Through electrophoresis, a uniform coating is deposited on the surface of the aluminum alloy. This coating is not only beautiful but also has excellent corrosion resistance.
In addition to the above technologies, aluminum alloy ladder bridge can also be sprayed. Spray treatment is usually carried out on the basis of oxidation to improve the bonding strength between the coating and the substrate and the durability of the coating. Before spraying, the aluminum alloy surface needs to be pretreated, such as phosphating, chromizing or chemical oxidation.
There are many different surface treatment technologies for aluminum alloy ladder bridge, and each technology has its unique application scenarios and advantages. The choice of treatment technology needs to be comprehensively considered based on factors such as the specific purpose, use environment and economic cost of the aluminum alloy ladder bridge.
