Manufacturing method of colored hot dip galvanized steel with excellent surface quality and color clarity.

摘要

In the present invention, a zinc alloy system composed of 0.1 to 0.3 wt% Ti, 0.01 to 0.05 wt% Ni, 0.004 wt% or less Al, and the balance of Zn and unavoidable impurities is used as a plating bath component system. Color melting with excellent surface quality and color clarity, characterized by immersing and plating the plated material heated to the same temperature as the plating bath temperature in the plating bath maintained at ℃ 1 ~ 3 seconds, and then cooled in an oxygen atmosphere air The manufacturing method of a galvanized steel sheet is made into the summary.