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1. WO1992014862 - METHOD FOR TREATING ALUMINUM CONTAINING SURFACES

Publication Number WO/1992/014862
Publication Date 03.09.1992
International Application No. PCT/US1991/009668
International Filing Date 26.12.1991
Chapter 2 Demand Filed 21.07.1992
IPC
C23C 22/78 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
22Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
78Pretreatment of the material to be coated
CPC
C23C 22/78
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
22Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
78Pretreatment of the material to be coated
Applicants
  • HENKEL CORPORATION [US]/[US] (AllExceptUS)
  • MATSUSHIMA, Yasunobu [JP]/[JP] (UsOnly)
  • TANAKA, Shigeo [JP]/[JP] (UsOnly)
  • TANI, Daijiro [JP]/[JP] (UsOnly)
Inventors
  • MATSUSHIMA, Yasunobu
  • TANAKA, Shigeo
  • TANI, Daijiro
Agents
  • WISDOM, Norvell, E., Jr.
  • VON KREISLER, Alek
Priority Data
2/40544625.12.1990JP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR TREATING ALUMINUM CONTAINING SURFACES
(FR) PROCEDE DE TRAITEMENT DES SURFACES CONTENANT DE L'ALUMINIUM
Abstract
(EN)
A primary film of Ni, Fe, and/or Co is formed on an aluminum surface and a phosphate film is formed on the aluminum surface on which this primary film has been formed, or on a composite of an aluminum surface on which a primary film has been formed and a zinc based coated steel sheet. This method of surface treatment is not accompanied with pollution problems with Cr6+ ion and F-, and there is little deterioration of the phosphate film forming treatment liquid with use.
(FR)
Un film primaire de Ni, Fe, et/ou Co est constitué sur une surface d'aluminium, un film phosphate est ensuite constitué sur cette surface d'aluminium ayant reçu ce film primaire, ou sur une surface d'un composite d'aluminium sur laquelle un film primaire a été constitué, avant d'être combiné à une tôle d'acier enduite à base de zinc. Cette méthode de traitement de surface n'entraîne pas les problèmes de pollution courants par l'ion Cr6+ et par F-, et l'on constate à l'usage une faible dégradation du liquide de traitement servant à réaliser le film phosphate.
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