Galvanizing quality of hot-dip galvanized steel pipes Hot dip galvanizing, also known as hot-dip galvanizing and Hot-dip galvanization, is an effective way of metal corrosion prevention, mainly used on metal structures and facilities in various industries. It is to immerse the derusted steel parts in molten zinc at around 500 ℃, so that a zinc layer is attached to the …

Generally, Hot-dip galvanization pipes in our production and life mainly react with molten metal and ferrite to produce alloy layer, so that the substrate and coating can be combined. Among them, hot dip galvanizing mainly involves pickling the surface of steel pipes, and such measures are mainly used to remove iron oxide on the surface of steel pipes. After acid …

How to distinguish the quality of galvanized pipes Distinguishing the quality of galvanized pipes: 1. Generally, defective galvanized pipes are in a folded state, and the appearance of such folded galvanized pipes is the main reason for this kind of folding line. This disadvantage often runs through the longitudinal direction of the entire product, and the reason for folding may …