PROCESS OF FORMING PHOSPHATE COATINGS ON METAL SURFACES

A process for forming phosphate coatings on metal surfaces is provided which comprises the steps of contacting said metal surface with an Fe(II)-containing phosphating solution comprising 0.4 to 30 g/l Zn 4 to 30 g/l P2O5 5 to 50 g/l NO3 up to 10 g/l Fe(II) ; and up to 0.3 g/l (Fe(III) wherein the w...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KAUL, LOTHAR, BLUEMLHUBER, GEORG, RAUSCH, WERNER, WIETZORECK, HARDY, GEHMECKER, HORST, HAUFFE, DIETER, NITSCHKE, THOMAS
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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