Common galvanizing method of seamless steel tube is divided into hot galvanized and electroplating two categories.
Hot galvanized with wet, dry, lead and zinc, redox method.
The main difference between the different hot-dip galvanizing method After the acid leaching of steel pipe, how to activate the surface of the pipe to improve the quality of galvanized. Production is mainly used in dry and redox method.
Galvanized zinc layer surface is very smooth and dense, uniform organization; has good mechanical properties and corrosion resistance; zinc consumption than hot galvanized 60% to 75%. Electroplating zinc in the technical have some complexity, but the single-sided coating, inside and outside the surface coating thickness of the double-sided coating, and thin-walled tube galvanized, etc. are required to use this method.
