Anodisiert

Anodisiert refers to the process of anodizing, an electrochemical technique used to increase the thickness of the natural oxide layer on the surface of metal parts. This is most commonly applied to aluminum, but can also be used on magnesium, titanium, and other metals. The primary purpose of anodizing is to improve corrosion resistance, wear resistance, and to allow for dyeing or other surface treatments.

The anodizing process involves immersing the metal part in an electrolyte bath, typically sulfuric acid, and using it as the anode in an electrolytic cell. An electric current is then passed through the electrolyte, causing a controlled oxidation of the metal surface. This electrochemical reaction creates a porous, oxide layer that is integral to the base metal. The thickness and properties of this oxide layer can be controlled by adjusting factors such as current density, temperature, and electrolyte concentration.

After the anodizing process, the porous oxide layer can be sealed by immersing the part in hot water or a sealing solution. This fills the pores and further enhances the corrosion resistance. Anodized surfaces can also be dyed in a variety of colors by introducing dyes into the pores before sealing. This makes anodizing a popular choice for decorative applications as well as functional ones, offering a durable and aesthetically pleasing finish. The resulting surface is harder than the base metal, which improves its resistance to scratching and abrasion.