METHOD FOR PRODUCING A STEEL SHEET PROTECTED AGAINST CORROSION

A process for producing a corrosion-protected steel sheet for coating with an organic coating agent, includes vacuum-coating the steel sheet, which is protected against corrosion with a layer of zinc or zinc alloy, with at least one additional metal or a metal alloy. After vacuum-coating, the steel...

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Bibliographische Detailangaben
Hauptverfasser:	ROGNER, INGO, SCHWERDT, CHRISTIAN, SCHUHMACHER, BERND, RIEMER, MONIKA
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS THEREFOR 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 ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	A process for producing a corrosion-protected steel sheet for coating with an organic coating agent, includes vacuum-coating the steel sheet, which is protected against corrosion with a layer of zinc or zinc alloy, with at least one additional metal or a metal alloy. After vacuum-coating, the steel sheet is subjected to a thermal diffusion treatment and finally cooled down. The process is characterized according to the invention in that cooling takes place with a water-based coolant.