VERFAHREN ZUR OBERFLÄCHENBEHANDLUNG VON GEGENSTÄNDEN AUS ALUMINIUM

VERFAHREN ZUR OBERFLÄCHENBEHANDLUNG VON GEGENSTÄNDEN AUS ALUMINIUM

There is disclosed a method for surface treating aluminum products, especially vehicle wheels, to improve their brightness. The method comprises: (a) applying a chemical brightening composition to these products; (b) deoxidizing the surface of these wheel products in a nitric acid-based bath; (c) fo...

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Hauptverfasser: ROBARE, M, GRASSI, R, VEGA, F, DANDO, NEAL R, HOLTZ, A
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APPARATUS THEREFOR
APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
CHEMISTRY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PERFORMING OPERATIONS
PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
SPRAYING OR ATOMISING IN GENERAL
TRANSPORTING
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creator ROBARE, M
GRASSI, R
VEGA, F
DANDO, NEAL R
HOLTZ, A
description There is disclosed a method for surface treating aluminum products, especially vehicle wheels, to improve their brightness. The method comprises: (a) applying a chemical brightening composition to these products; (b) deoxidizing the surface of these wheel products in a nitric acid-based bath; (c) forming a porous oxide on that with an electrolytic bath containing phosphoric acid; and (d) applying, preferably spraying, a siloxane-based film to that porous oxide. In many instances, intermediate rinsing substeps are performed between these respective main steps.
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subjects APPARATUS THEREFOR
APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
CHEMISTRY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PERFORMING OPERATIONS
PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
SPRAYING OR ATOMISING IN GENERAL
TRANSPORTING
title VERFAHREN ZUR OBERFLÄCHENBEHANDLUNG VON GEGENSTÄNDEN AUS ALUMINIUM
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