Aluminum housings are widely used in life and industrial products. In order to adapt the aluminum shell to certain environments or achieve certain functions, companies also choose different processes to treat the surface of the aluminum shell, such as anodizing, electroplating, spraying, micro-arc oxidation, etc. Anodizing is a widely used surface treatment in many processes. So why should the anodizing be used for the surface treatment of aluminum enclosures?
Properties of Anodized Aluminum
1. Flatness Normal aluminum plates have a tendency to have uneven surfaces. The surface production method for the anodized aluminum plate has undergone significant advancement, resulting in a production method that is of a higher quality overall. Therefore, both the smoothness and flatness of the surface are superior to ordinary aluminum plates.
2. The outward appearance is absolutely stunning. We are all aware that the typical appearance of aluminum plates is that they are uniformly gray in color and have a single tone. The anodized aluminum plate comes in a variety of colors and is not limited to a single shade of gray alone. The CNC anodizing process is responsible for producing the well-known colors apple gold, space gray, and rose gold.
3. Corrosion resistance and wear resistance As a result of the addition of coating, the coating undoubtedly serves as a protective layer between the metal and the outside world; consequently, the anodized aluminum plate has exceptional anti-rust performance, which can lengthen the service life of the surface metal. When a coating is applied to a material, it not only protects the surface from damage but also makes it more wear-resistant.
4. Excellent use performance Not only does the anodized aluminum plate have exceptional bending performance, but it also has very good machinability. There is a range of sizes available to accommodate a variety of requirements. In addition, it has excellent resistance to the elements; not only can it be used normally in any kind of weather condition, but it is also able to maintain its upright position even when exposed to saline acid rain.
Reasons For Using the Anodizing Process on Aluminum Products
– After the aluminum shell is anodized, an anti-corrosion, wear-resistant and beautiful oxide film will be formed on the surface. The characteristics of the oxide film also establish the position of anodic oxidation in the surface treatment process accordingly. Extruded profiles of aluminum products have a single appearance without surface treatment, and are easy to corrode in humid air. It is difficult to meet the requirements of high decoration and strong weather resistance of building materials. In order to improve the decorative effect, enhance corrosion resistance and prolong the service life, Aluminum profiles are generally subject to anodic oxidation surface treatment. All kinds of buildings, daily-use aluminum products, decorations, and furniture items decorated by it are beautiful and elegant, and meet the needs of customers, so the application value of aluminum materials has greatly increased.
– Anodizing refers to the electrochemical oxidation of metals or alloys. Aluminum and its alloys form an oxide film on the aluminum product (anode) under the corresponding electrolyte and specific process conditions. Anodizing of aluminum is an electrolytic oxidation process in which the surface of aluminum and aluminum alloys is usually converted to an oxide film with protective, decorative and performance properties. Starting from this definition, the anodic oxidation of aluminum only includes the process of forming an anodic oxide film.
– The aluminum alloy casing has been anodized to approve a layer of protective coat. Since the chemical properties of the anodized film are very stable in the natural environment, it can provide corrosion protection for the aluminum alloy casing. The oxide film has high hardness, low roughness, and smooth surface, which greatly improves In order to improve the wear resistance of the aluminum shell, if various organic and inorganic dyes are added during the anodizing process, the anodized film will have a color, which will bring a beautiful effect to the aluminum shell.