5052 anodized aluminum blanks

Aluminum alloy material has low hardness and poor wear resistance. A layer of oxide film can be formed on its surface by anodic oxidation to improve its surface hardness, wear resistance and corrosion resistance.

This technology is in the leading position in industry Domain is widely used. At the same time, the anodized film can be colored to produce various colors of decorative appearance, which can be used to make the shell of notebook, mobile phone and other electronic products.

5052 anodized aluminum blanks

5052 anodized aluminum blanks have good formability, corrosion resistance and medium strength. They are widely used in the manufacturing of aircraft fuel tanks, oil pipes, sheet metal parts of transportation vehicles and ships, structural parts and appearance parts of electronic 3C products and other industrial and civil consumption fields. Among them, the application proportion of domestic 5052 anodized aluminum blanks in the appearance parts of domestic mobile phones and laptops has increased significantly in recent years, with high cost performance, and there is a trend to gradually replace imported materials.

The anodizing process of aluminum alloy mainly includes the following links: sample grinding and degreasing → water washing → alkali corrosion → water washing → neutralization → anodizing → closed and dry. In order to obtain aluminum alloy anode with good quality The surface of the anodized plate is easy to be flat, or there are black spots on the surface of the anodized plate.

5052 anodized aluminum blanks are prone to black stripes and spots. Through analysis, it is found that the defects are mainly strip defects and impurities on the surface of aluminum, and mainly appear in the links of roller brush pressing force, final rolling temperature and original metallurgical quality of blank in the hot rolling process. Therefore, the improvement measures also start from these two aspects. By reasonably controlling the pressing force, appropriately increasing the final rolling temperature, and ensuring the effect of filtration and degassing process in the melting and casting process, the defects can be effectively prevented.