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A hot-dip galvanized steel sheet is produced by rolling a steel to produce a strip, pickling said strip, and performing a continuous hot-dip galvanizing operation. Said continuous hot-dip galvanizing operation is performed by soaking the pickled strip at a temperature of 750 to 850 DEG C, cooling th...

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Bibliographische Detailangaben
Hauptverfasser:	INAZUMI, TORU, NODE, SHUNSAKU, SATO, SHOGO, NAGATAKI, YASUNOBU, URABE, TOSHIAKI, HARADA, KOZU, KITANO, FUSATO, KOBAYASHI, AKIO, TOMITA, KUNIKAZU
Format:	Patent
Sprache:	ger
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:	A hot-dip galvanized steel sheet is produced by rolling a steel to produce a strip, pickling said strip, and performing a continuous hot-dip galvanizing operation. Said continuous hot-dip galvanizing operation is performed by soaking the pickled strip at a temperature of 750 to 850 DEG C, cooling the soaked strip to a temperature range of 600 DEG C or lower at a cooling rate of 1 to 50 DEG C per second, hot-dip galvanizing the cooled strip, and cooling the galvanized strip so that the residence time at 400 to 600 DEG C is within 200 seconds. The steel sheet has a structure consisting essentially of ferrite and martensite.