Large coil galvanized wire is made of low carbon steel wire, is made of low carbon steel, after drawing molding, pickling rust removal, high temperature annealing, hot dip galvanized. Cooling process and other processing. Galvanized wire is divided into hot galvanized wire and cold galvanized wire, has good toughness and elasticity, the maximum amount of zinc can reach 300 grams/square meter. It has the characteristics of thick galvanized layer and strong corrosion resistance. Galvanized wire and other galvanized process compared to galvanized low carbon steel wire plating before the end of the cleaning standard is low.
However, in the current from time to time to improve the quality of the trend of galvanized layer, bring into the plating tank small some pollutants, obviously become harmful things. Proper cleaning and effective rinsing of the substrate prior to plating are important because cleaning the galvanizing layer takes a lot of time and reduces production. The surface of galvanized wire before galvanizing layer to local removal of surface film layer, surface inclusion and other defects can be found and disposed of by conventional technology; Excess foam is formed by the introduction of soap and surfactants such as saponified fats into the tank.
Moderate foam formation rates may be harmless. The presence of a large number of small homogeneous particles in the tank can stabilize the foam layer, using activated carbon mat to remove surface active substances, or filtration to make the foam unstable, which are effective measures; Other measures should also be taken to minimize the introduction of surfactant, and the introduction of organic matter can significantly reduce the electroplating speed.
Post time: 10-11-21