METHOD FOR MANUFACTURING COLORED GALVANIZED STEEL SHEET BY OXIDATION

摘要

PURPOSE: Provided is a method for manufacturing colored galvanized steel sheet without extra painting process by controlling constituents to be added in galvanizing bath. CONSTITUTION: In a method for continuously manufacturing colored galvanized steel sheet by oxidation, the method is characterized in that steel sheet is dipped in a zinc bath including Ti 0.2 to 0.5 wt.%, Zr 0.03 to 0.05 wt.% and then the steel sheet is reheated at 480 to 500 °C.