Compared with other galvanizing processes, the cleaning standard of low carbon steel wire before plating is low when galvanizing. However, under the current trend of increasing the quality level of the galvanized layer, some pollutants are brought into the plating tank. Clearly something harmful. Because cleaning the galvanizing layer wastes a lot of time and reduces production, it is important to have proper cleaning and effective rinsing of the substrate prior to plating.
Galvanized wire is made of high quality low carbon steel rod processing, is made of high quality low carbon steel, after drawing molding, pickling rust removal, high temperature annealing, hot dip galvanizing. Cooling and other processes from the process. Galvanized wire is divided into hot galvanized wire and cold galvanized wire. Galvanized iron wire has good toughness and elasticity, the highest amount of zinc can reach 300 g/m2. It has the characteristics of thick galvanized layer and strong corrosion resistance.
Before galvanizing, defects such as surface film layer and surface inclusion can be found and treated by conventional technology. Excess foaming is caused by the introduction of surfactants such as soap and saponifiable fats into the bath. A moderate rate of bubble formation may be harmless. The existence of a large number of small homogeneous particles in the bath can stabilize the foam layer, activated carbon matting to remove surface active substances, or through filtration to make the foam less stable, which are effective measures.
Other measures should be taken to minimize the introduction of surface active substances, which can significantly reduce the electroplating speed. Although the chemical formulation is conducive to high deposition rate, the coating thickness can not meet the requirements of organic matter, so activated carbon can be used to treat the bath.
Post time: 17-05-21