HIGH pH TRIVALENT CHROMIUM COLORED CHEMICAL CONVERSION COATING FILM TREATMENT LIQUID AND TREATMENT METHOD

PROBLEM TO BE SOLVED: To improve stability of treatment liquid of a zinc- or zinc-nickel alloy-plated article at high pH which has been unstable.SOLUTION: A trivalent chromium colored chemical conversion coating film treatment liquid for zinc plating or zinc-based alloy plating includes: (1) a triva...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	YANAGI YOSUKE, SEKIGUCHI OSAMU, KANEKO ATSUSHI
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To improve stability of treatment liquid of a zinc- or zinc-nickel alloy-plated article at high pH which has been unstable.SOLUTION: A trivalent chromium colored chemical conversion coating film treatment liquid for zinc plating or zinc-based alloy plating includes: (1) a trivalent chromium compound, (2) at least one ion supply source selected from a chlorine ion, nitrate ion and sulfate ion, and (3) two or more of organic acid or organic acid salt, and is used at pH of 2.8-5.0.