What is the reason for the color difference of anodized aluminum plates?

Anodized aluminum plates are aluminum plates placed in corresponding electrolytes (such as sulfuric acid, chromic acid, oxalic acid, etc.) as anodes, and electrolyzed under specific conditions and the effect of external current. The aluminum plate of the anode is oxidized, and a thin layer of aluminum oxide is formed on the surface. Its thickness is 5-20 microns, and the hard anodized film can reach 60-200 microns. Anodized aluminum plates are widely used in electronic panels, home appliance panels, integrated ceilings, interior decoration, outdoor curtain walls, cabinets, crafts, signs, lighting, etc. The colors of anodized aluminum plates are also very rich, with various colors such as natural, black, rose gold, mist white, stainless steel, gold, etc. to choose from.

What is the reason for the color difference of anodized aluminum plates?

There are many factors that cause color difference in anodized aluminum plates, such as raw materials, treatment solutions, treatment time, and treatment temperature. It is inevitable that there is color difference in anodized aluminum plates, which is also a characteristic of anodized aluminum plates. However, each company will standardize a color difference plan, and all products within the plan are qualified products.

• 1. During the oxidation treatment of the material, the treatment effect will be affected by factors such as the composition, content, concentration, temperature, and treatment time of the solution, which will lead to different final product effects;
• 2. During the closed coloring treatment of the product, the color difference that already exists during the pre-treatment of the raw materials will increase the difficulty of sample matching, color matching, and color matching;
• 3. The metal element content and texture of different batches of raw material aluminum plates are different. After multiple adjustments and sample evaluations during the coloring treatment, it is difficult to achieve the same effect as the sample.

What are the types of aluminum oxide plates?

1. Anodized aluminum plate:

Anodized aluminum plate is a very practical aluminum oxide plate. There is a special and very thin aluminum oxide layer on the surface of the anodized aluminum plate. This aluminum oxide layer increases the hardness of the aluminum oxide plate and improves the wear resistance of the aluminum oxide plate. Anodized aluminum plates also have a very high melting point, which makes the durability of anodized aluminum plates very strong.

2. Chemical aluminum oxide plate:

Chemical aluminum oxide plate is a very good aluminum oxide plate. Chemical aluminum oxide plate is mainly made by chemical effects. After the chemical reaction, the thickness of the oxide film of the chemical aluminum oxide plate has been thickened once, which improves the oxidation resistance and durability of the chemical aluminum oxide plate.

What are the advantages of anodized aluminum plate?

• 1. The surface of the aluminum oxide plate is more delicate and has a higher glossiness.
• 2. The oxidation treatment can generate an oxide film containing a certain element on the surface of the aluminum plate, so that the surface of the aluminum plate presents different colors and enhances the visual effect.
• 3. Aluminum plates do not need to be modified and can be directly stamped to improve the overall aesthetics and texture of the product.
• 4. The surface of the aluminum plate has an oxide film, which is scratch-resistant, UV-resistant and non-fading, does not leave fingerprints after contact, is anti-static and does not absorb dust, and is easy to clean.

Original Source:Anodized Aluminum Sheet Coil