Galvanized wire is made of high quality low carbon steel wire rod, is made of high quality low carbon steel, through 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 (electric galvanized wire). Galvanized iron wire has good resistance and elasticity, and the maximum zinc loading can reach 300g/m2. With galvanized layer thick, strong corrosion resistance and other characteristics.
Galvanized wire and other galvanized process, galvanized low carbon steel wire cleaning requirements before plating specification is low. However, in the current trend of constantly requiring to improve the quality grade of galvanized layer, some small pollutants are brought into the plating tank. It becomes distinctly harmful. Proper cleaning of the substrate before plating and a useful rinsing operation are important because cleaning the galvanizing layer wastes a lot of time and reduces production.
What should we pay attention to before galvanizing the galvanized wire? The appearance of the accumulated layer of galvanized wire before galvanizing is partially removed from the appearance of the film layer, the appearance of mixing and other defects can be found and treated by conventional technology; Excess lather is caused by the introduction of soap and saponizable fats into the tank. A moderate foam formation rate may be harmless.
The presence of many small homogeneous particles in the tank liquid, can stabilize the foam layer, with activated carbon mat to remove the appearance of active substances, or through filtration to make the foam is not very stable, this is a useful measure; Other measures should also be taken to minimize the introduction of externally active substances. The plating speed can be decreased significantly with the addition of organic matter. Although the chemical formula is conducive to high accumulation rate, but the organic matter with people, so that the coating thickness can not meet the requirements, so activated carbon can be used to treat the tank liquid.
Post time: 29-07-21