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Steel sheet containing 10-500 ppm of carbon is cold rolled. The oil used, has a viscosity in the range 30-70 mm /s measured at 50 degrees C. The steel sheet is annealed, causing recrystallization. The surface to be coated is pickled in a mineral acid, and is then coated in a tin bath of high purity....

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Bibliographische Detailangaben
Hauptverfasser:	THRAN, DIETMAR, BECKER, ROLF, SAUERREINER, OBERHOFFERHELMUT
Format:	Patent
Sprache:	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:	Steel sheet containing 10-500 ppm of carbon is cold rolled. The oil used, has a viscosity in the range 30-70 mm /s measured at 50 degrees C. The steel sheet is annealed, causing recrystallization. The surface to be coated is pickled in a mineral acid, and is then coated in a tin bath of high purity. In this way, between the tin layer and the steel sheet, a tin/steel boundary layer (diffusion layer) is formed. An Independent claim is included for corresponding tinplate.