What is Hot-dip galvanized pipe
Hot-dip galvanized pipe is to make the molten metal react with the iron matrix to produce an alloy layer, thereby combining the matrix and the coating. Hot-dip galvanizing first acid washes the steel pipe to remove the iron oxide on the surface of the steel pipe. After acid washing, it is cleaned in a tank with ammonium chloride or zinc chloride aqueous solution or a mixture of ammonium chloride and zinc chloride aqueous solution, and then sent to the hot-dip galvanizing bath.