- - - Zn-Ni ALLOY ELECTRO-PLATING SOLUTION COMPOSITION AND METHOD FOR MANUFACTURING Zn-Ni ALLOY ELECTROPLATED STEEL SHEET USING THE SAME AND Zn-Ni ALLOY ELECTROPLATED STEEL SHEET

摘要

The present invention relates to a zinc-nickel alloy electroplating solution composition, a method for manufacturing zinc-nickel alloy electroplating steel sheets using the same, and zinc-nickel alloy electroplating steel sheets produced therefrom. According to one aspect of the present invention, reactivity of a positive electrode and electrodeposition reactivity are good, adhesion is good, and a grain is fine and illuminance is improved. As a result, zinc-nickel alloy electroplated steel sheets excellent in surface appearance can be produced. In one aspect of the present invention, the present invention comprises a metal ion of zinc and nickel at a concentration of 40-150 g/L, and satisfies the concentration ratio of the metal ion of zinc and nickel with 0.5-0.8. The present invention also provides the zinc-nickel alloy electroplating solution composition comprising an additive composed of sodium saccharin, sodium lauryl sulfate and bis sodiumsulfopropyl disulfide (SPS).