METHOD FOR MANUFACTURING Zn/Fe ALLOY ELECTROPLATED STEEL SHEET EXCELLENT IN PLATING ADHESION, SURFACE ROUGHNESS AND APPEARANCE

摘要

PURPOSE: A method for manufacturing a Zn/Fe alloy electroplated steel sheet excellent in plating adhesion, surface roughness and appearance such as color and gloss is provided. CONSTITUTION: The method for manufacturing a Zn/Fe alloy electroplated steel sheet is characterized in that electroplating process is carried out under the plating conditions of a current density of 20-200A/dm¬2, a relative current velocity of 0.5-2.5m/sec between an electroplating solution and cathode, a temperature range of the electroplating solution of 40-70 deg.C and a pH range of the electroplating solution of 1.0-6.0.