Method for the anti-corrosion treatment of components made of aluminum

The present invention relates to a method for the anti-corrosion treatment of components made of aluminum, comprising a pretreatment step and subsequent lacquering. The passivation in the pretreatment step comprises bringing the components into contact with an acidic aqueous composition based on wat...

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Bibliographische Detailangaben
Hauptverfasser:	ANDREAS, RICHARD BENDER, INA, KRUGERMANN, THOMAS, JOHN-SCHILLINGS, ANDREA, SOLDATI, MATHIEU, VAN DE CAPPELLE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PERFORMING OPERATIONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention relates to a method for the anti-corrosion treatment of components made of aluminum, comprising a pretreatment step and subsequent lacquering. The passivation in the pretreatment step comprises bringing the components into contact with an acidic aqueous composition based on water-soluble compounds of the elements Zr and/or Ti. The pickling and passivation are coordinated with one another in such a way that additional dosing of active components of the passivation solution may take place to a large extent from the pickling solution.