METHOD AND SYSTEM FOR HOT-DIP COATING HOT-ROLLED STEEL STRIPS

The invention relates to a method and a system (1; 100) for producing hot-dip coated hot-rolled steel strips (2), preferably in a continuous processing line, comprising a strip pre-treating device (3) for scaling, preferably by means of a pickling, rinsing, and drying process, cold-working devices (...

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Bibliographische Detailangaben
Hauptverfasser:	HAUPT, Werner, KLÖCKNER, Hans Georg, GRAMER, Andreas, JOLLET, Peter, SULENSKI, Hartmut, EDER, Anja Maria
Format:	Patent
Sprache:	eng ; fre ; 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 GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention relates to a method and a system (1; 100) for producing hot-dip coated hot-rolled steel strips (2), preferably in a continuous processing line, comprising a strip pre-treating device (3) for scaling, preferably by means of a pickling, rinsing, and drying process, cold-working devices (8; 11) for reducing the strip thickness, preferably by cold-rolling the strip, and a subsequent post-treatment device, for example for a stretch-bending alignment and/or a chemical post-treatment. In order to allow valuable, zinced strips and strip surfaces to be achieved, the strip pre-treating device (3) for the descaled hot strip is first followed by the thickness-reducing device (8), in which the strip thickness is reduced by less than 30%, preferably 0.5 to 10%, and the thickness-reducing device is then followed by the strip-zincing device (7), in which the hot strip is subjected to a molten bath (9).