Aluminum alloy rotating racks (three layers) are widely used in warehousing, logistics, and commercial displays. Their surface treatment processes play a crucial role in enhancing corrosion resistance and aesthetics. A suitable surface treatment not only extends the rack's lifespan but also allows it to better integrate into different environments and meet diverse aesthetic needs.
Anodizing is a common surface treatment process for aluminum alloy rotating racks (three layers). During anodizing, the aluminum alloy rack acts as the anode, placed in an electrolyte solution. By applying an electric current, a dense oxide film forms on the rack's surface. This oxide film possesses extremely high hardness and excellent wear resistance, effectively resisting external physical scratches and impacts, reducing damage caused by friction during use. Simultaneously, the oxide film also exhibits excellent corrosion resistance, preventing oxygen, moisture, and other corrosive substances in the air from directly contacting the aluminum alloy substrate, thus preventing oxidation and corrosion and extending the rack's lifespan in harsh environments such as humid and acidic/alkaline conditions. In addition, anodizing offers a wide range of color options for the racks. By adding different colorants to the electrolyte, various vibrant and uniform colors can be achieved on the rack surface, greatly enhancing its aesthetics and making it more adaptable to different decoration styles and display needs.
Electrophoretic coating is also an effective process for enhancing the corrosion resistance and aesthetics of aluminum alloy rotating racks (three layers). Electrophoretic coating involves immersing the rack in an electrophoresis tank containing charged paint. Under the influence of an electric field, the paint particles move directionally and deposit on the rack surface, forming a uniform and smooth coating film. This coating film has excellent adhesion, bonding tightly to the aluminum alloy surface and resisting peeling. It not only effectively isolates the rack from external environmental corrosion, enhancing its corrosion resistance, but also provides excellent decorative effects. Electrophoretic coating offers a rich variety of colors and a high gloss finish, giving the rack a bright and smooth appearance, enhancing its overall texture and making it more eye-catching in commercial displays.
Powder coating also plays an important role in the surface treatment of aluminum alloy rotating racks (three layers). Powder coating involves applying powdered paint to the surface of the rack using an electrostatic spray gun, followed by high-temperature curing. This process melts the powder and forms a robust coating. The resulting coating is uniform in thickness, exhibits excellent chemical resistance, and protects the rack from damage by resisting various chemical substances. Simultaneously, powder-coated surfaces are smooth, brightly colored, and offer excellent decorative appeal. Various colors and textures can be selected to meet different needs, allowing the rack to achieve a unique visual effect while fulfilling its practical functions.
In addition to the above processes, micro-arc oxidation is another emerging and effective surface treatment technology. Building upon anodizing, micro-arc oxidation involves increasing the voltage to create a micro-arc discharge phenomenon on the aluminum alloy surface, forming a ceramic-like oxide film. This oxide film possesses extremely high hardness, wear resistance, and corrosion resistance, providing stronger protection for aluminum alloy rotating racks (three layers). Furthermore, the surface of racks treated with micro-arc oxidation exhibits a unique texture and feel, offering high aesthetic appeal and meeting the needs of special applications requiring high-quality rack appearance.
In practical applications, to further enhance the corrosion resistance and aesthetics of aluminum alloy rotating racks (three layers), a combination of surface treatment processes can be employed. For example, anodizing can be performed first to form a basic oxide film on the rack surface, followed by electrophoretic coating or powder coating to increase the coating thickness and decorative effect, giving the rack both excellent corrosion resistance and a bright appearance.
In summary, by rationally selecting and applying surface treatment processes such as anodizing, electrophoretic coating, powder coating, and micro-arc oxidation, or by combining multiple processes, the corrosion resistance of aluminum alloy rotating racks (three layers) can be significantly enhanced, effectively extending their service life, while also greatly improving their aesthetics, allowing them to perform optimally in various application scenarios and achieve the best visual effect.
