Airbus Operations Gmbh

Airbus (sas)

Eads Deutschland Gmbh

Martin Beneke

Dominik Raps

Malte Burchardt

Tobias Mertens

Sonja Nixon

Franz Gammel

Mariana Paz Martinez-vidamonte

Theodor Hack

Franz J Gammel

To improve adhesion of Cr(VI)-free primers and suitable topcoats on aircraft parts, a method for anodizing part surface of the aircraft part that includes aluminum or an aluminum alloy including the steps of cleaning the part and exposing the part to an anodizing electrolyte. During anodizing it is essential that the temperature of the anodizing electrolyte is maintained at a constant temperature chosen from a range from 42° C. to 60° C.

Methods for anodizing a part surface and subsequently coating the anodized part surface for corrosion protection purposes

An aqueous composition for forming a chemical conversion layer on a metal surface, wherein the composition contains at least one active component for the formation of the chemical conversion layer, as well as at least one thickener, and has a viscosity in the range between 10 mPa*s and 10000 mPa*s.

Composition for the local application of chemical conversion layers

The present invention relates to a method for producing a chemical conversion layer on a metal surface, comprising the following method steps: (i) providing at least one cloth having a defined area, which is resistant at least in the pH range from 2 to 7 and is tear-proof in the wet state, (ii) bringing the cloth into contact with a liquid, which contains at least one active component for the formation of the chemical conversion layer, so that the cloth is impregnated with the liquid, (iii), applying the cloth impregnated with the liquid to a metal surface, and (iv) removing the cloth from the metal surface at a moment at which the cloth is still at least damp.

Method for the local application of chemical conversion layers

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Stuhr, Germany

Martin Beneke