The Technology of Hot-dip galvanized pipe

　　Hot-dip galvanized pipe is to make the molten metal react with the iron matrix to produce the alloy layer, so that the matrix and the two layers of the coating are combined. Manufacturer Hot Dipped Galvanized Pipe is to pickle steel pipes first, then remove iron oxides on the surface of steel pipes, then pickle them, then clean them through ammonium chloride or zinc chloride water solution or ammonium chloride and zinc chloride mixed water solution tank, then send them into hot dip bath. Hot dip galvanizing has the advantages of uniform coating, strong adhesion, long service life and so on. Most of the northern process using zinc galvanized with direct rolling process.