Anodized

Anodized refers to the process of anodizing, which is an electrochemical treatment commonly applied to aluminum and other metals to create a durable and protective oxide layer on the surface. Here's a summary of the anodizing process:

1. Electrochemical Process: Aluminum parts are immersed in an electrolyte bath and serve as the anode in an electrical circuit. Cathodes, typically made of lead or stainless steel, are also placed in the electrolyte.
2. Oxide Layer Formation: When a current is applied, oxygen ions from the electrolyte bond with the aluminum atoms on the surface, forming a layer of aluminum oxide (Al₂O₃). This oxide layer is integral to the metal and provides excellent corrosion resistance, hardness, and durability.
3. Coloration (optional): Anodizing can also include a step where colored dyes are introduced into the porous oxide layer. These dyes are absorbed into the oxide pores, allowing for a wide range of colors to be applied to the metal surface.
4. Sealing (optional): After dyeing, the anodized parts may undergo a sealing process. This seals the dye into the oxide layer, further enhancing durability and colorfastness.

Anodized aluminum parts are widely used in various industries due to their enhanced corrosion resistance, aesthetic appeal, and ability to withstand harsh environmental conditions. The process allows for both functional and decorative finishes on aluminum components, making it a versatile choice in manufacturing and design.