Anodising

Aluminium is a metal commonly used in various applications.
It is light, strong and reasonably resistant to corrosion even without surface treatment.
Anodising increases the corrosion resistance of aluminium and also modifies the appearance of the piece in a variety of colours.
The oxide layer is also very hard and provides a good anti-wear surface, while maintaining the metal’s pleasing natural appearance.
The anodised layer is also a good electrical insulator.
Anodising is also known as anodising.

The different anodising methods (sulphuric and oxalic acid and hard anodising) differ mainly in the diameter of the pore created in the growth of the layer.
A smaller pore size means a larger amount of aluminium oxide and therefore a harder coating.
On the other hand, the porosity of the surface can be exploited by infiltration of, for example, different colours or PTFE particles.
Metallization of the oxidized surface (e.g. electroless nickel) is also easily possible.
Depending on the treatment, the metal surface can then be either electrically connected or disconnected from the base material.
The production of nameplates by screen printing or digital printers into the anodised surface is also a typical application.