Surface treatments

The variety of surface processes

On the adjacent picture of the rear axle of a passenger car you can see some applications of our different surface processes:

From chemical nickel for the housing of the pot bearings of the rear axle to zinc-nickel for the anti-roll bar to passivated aluminium for the gearbox housing and the chassis cross struts.

Overview

Galvanic surface processes

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alvanic coatings have the aim to achieve desired surface properties. They can be used alone or in combination with other surface processes.

Zinc or zinc alloys with subsequent passivation are the most commonly used surface processes in metal finishing to achieve reliable corrosion protection.

Overview

Chemical processes

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he objective of the conversion coating of materials is the removal of the natural oxide layer and the generation of a uniform surface in order to establish a defined starting position for subsequent processes or to increase the corrosion resistance

Overview

Aluminium treatment

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luminium surfaces, finished parts, semi-finished products as well as cast aluminium parts and forgings usually show soiling in the form of oxide layers, chips, polishing pastes, greases, cutting oils or polishing residues due to the upstream processing.

In the process Washing-staining-preserving these surfaces are specifically optimized by applying a conversion layer. This passivation layer is ideally suited as a primer for subsequent painting, bonding, powder coating, KTL coatings and guarantees very good corrosion protection due to its adhesion-improving properties.

The anodizing (anodic oxidation) is an electrochemical process that converts the surface of aluminum into aluminum oxide. The resulting oxide layer is firmly bonded to the aluminum.