METHOD FOR SURFACE TREATMENT OF SHEETS AND STRIPS OF ALUMINIUM ALLOY

A method for surface treatment of sheets and strips of aluminum alloy to form a chemically altered layer. The sheet or strip is the product of a manufacturing process including a thermal treatment step followed by cooling in a liquid in which a chemical conversion is carried out using the cooling li...

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Hauptverfasser: MOHAMMED BENMALEK, ANTOINE GOLFOUSE, PIERRE GAVOILLE, EVELYNE HANK, RAVI SHAHANI
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creator MOHAMMED BENMALEK
ANTOINE GOLFOUSE
PIERRE GAVOILLE
EVELYNE HANK
RAVI SHAHANI
description A method for surface treatment of sheets and strips of aluminum alloy to form a chemically altered layer. The sheet or strip is the product of a manufacturing process including a thermal treatment step followed by cooling in a liquid in which a chemical conversion is carried out using the cooling liquid. The cooling liquid preferably contains between 1 and 10% by weight of at least one salt of one at least of the metals Si, Ti, Zr, Ce, Mn, Mo and V. The invention is particularly applicable to sheets and strips which need a controlled oxide surface for the production of chassis components for the automobile industry for spot gluing or welding.
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subjects CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS
CHEMICAL SURFACE TREATMENT
CHEMISTRY
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
FERROUS OR NON-FERROUS ALLOYS
GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS
INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL
MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS
METALLURGY
METALLURGY OF IRON
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
TREATMENT OF ALLOYS OR NON-FERROUS METALS
title METHOD FOR SURFACE TREATMENT OF SHEETS AND STRIPS OF ALUMINIUM ALLOY
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