Method for production of aluminized packaging steel and related application of aluminized steel sheet

The invention concerns a method for the production of an aluminized packaging steel from a cold-rolled steel sheet made of an unalloyed or low-alloy steel with the following steps: heating of the steel sheet by electromagnetic induction at temperatures in the recrystallization range of the steel at...

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Bibliographische Detailangaben
Hauptverfasser:	DIRK GADE, MANUEL KOEHL, BURKHARD KAUP, REINER SAUER
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS 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 FERROUS OR NON-FERROUS ALLOYS 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 METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention concerns a method for the production of an aluminized packaging steel from a cold-rolled steel sheet made of an unalloyed or low-alloy steel with the following steps: heating of the steel sheet by electromagnetic induction at temperatures in the recrystallization range of the steel at a heating rate of more than 75 K/s, so as to anneal the steel sheet in a recrystallizing manner; dipping of the steel sheet annealed in a recrystallizing manner into a molten aluminum bath, so as to apply an aluminum layer on the steel sheet, wherein the steel sheet, upon being dipped into the aluminum bath, has a temperature of at least 700 DEG C; and pulling the steel sheet out of the aluminum bath and cooling the aluminized steel sheet at a cooling rate of at least 100 K/s. The aluminized steel sheets are characterized by a high degree of strength and elongation at break and exhibit excellent formation characteristics, for example, in drawing and wall ironing processes, for the production of two-part food and beverage cans or lids and can be used as substitute material for tin sheets. The invention further relates to a related application of the aluminized steel sheet.