PROCESS FOR THE SURFACE TREATMENT OF METALS

1. A process for the surface treatment of a metal in a bath having a non-aqueous basis in a chamber unit which is not isolated from the surrounding atmosphere and has a heatable lower chamber section and a cooling zone located above it and provided with one or more condensate channels, wherein the c...

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Bibliographische Detailangaben
Hauptverfasser:	BUSSE, HANS-JURGEN, MULLER, DIETER-JURGEN
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS 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 PERFORMING OPERATIONS SPRAYING OR ATOMISING IN GENERAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING
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Beschreibung
Zusammenfassung:	1. A process for the surface treatment of a metal in a bath having a non-aqueous basis in a chamber unit which is not isolated from the surrounding atmosphere and has a heatable lower chamber section and a cooling zone located above it and provided with one or more condensate channels, wherein the condensate from the channel located next to the chamber surface is passed into a phase separation vessel and the aqueous phase which arises therein is passed into an overflow vessel, from which during the surface treatment such a quantity of aqueous phase is withdrawn as is reintroduced as the residual component to the treatment bath by means of a replenishing solution which contains the reactive components for the surface treatment and as the residual component the components of the aqueous phase in a composition of slightly lower water content.