摘要:
A method for producing a hot dip zinc plated steel sheet which comprises subjecting a steel product to a rough rolling, subjecting the resulting sheet to a finish rolling at a temperature of Ar3 point or higher, winding up the finish-rolled sheet at a temperature of 700 DEG C or lower, and subjecting the wound sheet to a hot dip zinc plating with a temperature of the heating before to plating 1 of Ac1 to Ac3; and a method for producing a hot dip zinc plated steel sheet which comprises pickling a steel belt and subjecting the pickled steel belt to a continuous hot dip zinc plating process comprising soaking the pickled steel belt at a temperature of 750 to 850 DEG C, cooling the soaked steel belt at a rate of 1 to 50 DEG C/sec to a temperature range of 600