Hot galvanized steel pipe galvanized and galvanized two kinds. A wet dry, hot galvanized zinc oxidation and reduction etc..
The main difference between the different hot galvanizing method in cleaning steel after acid leaching, improve the surface quality of galvanized pipe with what method of activation. The production is mainly used in dry and oxidation reduction method.
The surface of the zinc layer is galvanized smooth and dense and uniform microstructure; has good mechanical properties and corrosion resistance of zinc galvanized low specific heat consumption; 60% ~ 75%. Zinc has a certain complexity in technology, but the single coating, surface coating and double-sided plating of different thickness, and the thin-wall pipe galvanized should adopt this method.
keyword:Galvanized steel pipe