Galvanized wire selection of high quality low carbon steel rod processing, is the selection of high quality low carbon steel, through drawing forming, 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 tolerance 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 cleaning requirements are low. However, under the trend of improving the quality of galvanized layer, some pollutants with small plating tank are brought in. Significantly become something harmful. Because time is lost and production is reduced by cleaning the galvanizing layer, proper cleaning and useful rinsing of the substrate prior to plating is very important.
What should we pay attention to before galvanizing galvanized wire? The surface of galvanized wire before galvanizing layer to partially remove the surface of the film layer, the surface of the impurities and other defects can be found and treated by conventional technology; Excess foam is formed by the addition of soap and surfactants such as saponified fats into the bath. Moderate foam formation rates may be harmless.
The presence of many small homogeneous particles in the tank can stabilize the foam layer, activated carbon mat to remove the surface active substances, or filtration to make the foam less stable, which are useful measures; Other measures should also be adopted to minimize the import of externally active substances. The electroplating speed decreased significantly with the addition of organic matter. Although the chemical formula is conducive to the high accumulation rate, but after the organic matter, the coating thickness can not meet the requirements, so activated carbon can be used to treat the tank liquid.
Post time: 11-11-21