FEUERVERZINKTES STAHLBLECH UND HERSTELLUNGSVERFAHREN DAFÜR

摘要

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.