Hot Dip Galvanized Production Principle!

Only after knowing the cause of moldy zinc dipping can ensure the use of galvanized strip steel more long life, every galvanized wire production into the industry peak season in use when there will be no problems on the road to the factory will from time to time to see the transport wire and container container vehicles.

Hot dip galvanizing is in the heat of molten zinc dip plating in sulfur dioxide, hydrogen sulfide and Marine atmosphere, production speed, thick coating but uneven zinc corrosion resistance is poor, and the formation of infiltration layer with the base metal, especially in the atmosphere of high temperature and high humidity containing organic acid, zinc coating is easy to be corroded. The standard electrode potential of zinc is -0.76V, which is in the electroplating tank through the current unidirectional so that zinc is gradually plated on the metal appearance for the steel matrix, zinc coating belongs to the anodic coating, it is mainly used to prevent the corrosion of steel, usually only 3-15 microns, bright appearance, Poor corrosion resistance and its protective performance and coating thickness is very important. After zinc coating is passivated, dyed or coated with gloss protection agent, the plasticity of hot-dip galvanized square rectangular tube means that the metal material can significantly improve its protection and decoration under the action of load. Zinc will be oxidized in the air, and white rust will form on the surface. At present, the hardness measurement method commonly used in actual production is the pressing hardness method, which is quite normal. Also depends on your strip is hot dip galvanized or electric galvanized, if hot dip galvanized because the zinc layer is thicker, many machine parts are working under cyclic load to generate white rust does not affect the normal service, because the speed of zinc oxidation in the air is very slow. If galvanized, it is not easy to say in normal use generally more tensile strength as a basic strength pointer application.