METHOD FOR TREATING ALUMINUM CONTAINING SURFACES

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...

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Bibliographische Detailangaben
Hauptverfasser:	SHIGEO TANAKA, DAIJIRO TANI, YASUNOBU MATSUSHIMA
Format:	Patent
Sprache:	eng
Schlagworte:	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 INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	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 Cr ion and F, and there is little deterioration of the phosphate film forming treatment liquid with use.