Technology difference of galvanized steel wire rope
Electroplating Zinc is through the external power supply, electrodeposition method to obtain the coating, the obtained coating is composed of fine pure zinc grains. Cold galvanizing (or zinc plating) is galvanized at ambient temperature by electroplating or other methods. In theory, galvanized zinc can be obtained at any thickness of the zinc layer. At present, the zinc content of electroplating zinc can reach 1200g/m2. Zinc on the general galvanized layer can also reach 750g/m2.
Hot-Dip Galvanizing is formed by the thermal diffusion of physics, which first forms Fe-Zn compound, and then produces pure zinc layer on the surface of Fe-Zn compound. The highest zinc content on hot dip galvanized is 593g/m2. Hot-dip galvanizing will reduce the mechanical properties of steel wire, requiring high strength and high corrosion resistance galvanized steel wire rope, the use of galvanized steel wire twist system. Hot Dip galvanizing is galvanized in a 450-480 degree molten zinc solution.
Application and price difference of galvanized steel wire rope
is the galvanized wire rope good, or hot wire rope? In fact, this should be differentiated according to use, such as the support wire in the water pipe, recommended the use of electric (cold) galvanized steel wire rope, smooth surface, low cost; if it is a power tower, it should be hot galvanized. Because of the good corrosion resistance of hot dip galvanizing, it can be used for 30 or 40 years. The zinc content of galvanized steel wire rope is high, but the corrosion resistance is much higher than the cold galvanized steel wire rope because of the zinc alloy on the surface of hot galvanized steel wire rope. However, due to price misunderstanding, the current market is usually galvanized steel wire rope. From the appearance to distinguish, the cold galvanized steel wire rope appearance bright, hot galvanized steel wire rope appearance hair black. In fact, the corrosion resistance of cold galvanized steel wire rope is not as good as smooth oil in some degree.
Now the price of cold galvanized steel wire rope is more expensive than that of smooth wire rope.