Anodizing

Oxidation that protects metals

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  1. Galvanic treatments
    2.   \  
  2. Anodizing
- 01 What is that
- 02 How it happens
- 03 Processing
- 04 Contacts

What is anodic oxidation?

Anodic oxidation is a surface finishing treatment consisting of the formation of a thin oxide layer on the surface of the material. The oxide layer, obtained through an irreversible electrochemical process, improves the mechanical surface characteristics of the material and prevents corrosion.

The oxide layer that is formed is grey in color, but similar color effects can be achieved by adding organic pigments. Since the oxide layer is very porous, these pigments can adhere to the aluminum very easily, ensuring aesthetically pleasing results that are impossible to achieve with other treatments.

The number of color variants increases with the combination of pre-treatments, such as brightening or chemical satin-finishing, which give the workpiece a shiny or matt effect respectively. In addition to coloring the aluminum, the anodizing treatment serves to increase corrosion resistance, surface hardness, improve lubrication and enhance adhesion.

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