Process for coating the surface of a metal object

The invention relates to a process for coating the surface of a metal object, in particular a steel strip. To improve the corrosion resistance and/or the surface hardness and/or to achieve a particular colour, metals, metal compounds or their mixtures are introduced as powders or granular material i...

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Bibliographische Detailangaben
Hauptverfasser:	NADJAFZADEH,MASSOD, LIND,RUDOLF, STRASSBURGER,CHRISTIAN,.DR, SCHNEIDER,CHRISTOPH,.DR
Format:	Patent
Sprache:	eng ; ger
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:	The invention relates to a process for coating the surface of a metal object, in particular a steel strip. To improve the corrosion resistance and/or the surface hardness and/or to achieve a particular colour, metals, metal compounds or their mixtures are introduced as powders or granular material into the layer of a molten metal deposited on the cleaned and heated metal surface. Preferably, the powders or granular material are at a higher temperature which is above the liquidus temperature of the metal.