1, hot plating wire is made of high quality low carbon steel wire rod processing, is made of high quality low carbon steel, after drawing forming, pickling rust removal, high temperature annealing, hot dip galvanizing, cooling and other processes. Insulation layer of hard insulation products, can use no. 16 ~ 18 galvanized iron wire double strand binding, binding spacing should not be greater than 400mm. However, pipes or corresponding equipment with a nominal diameter equal to or greater than 600mm should be bundled and reinforced with galvanized iron wires of no. 10 to no. 14 or packing steel belts with a spacing of 500mm.
2, semi-hard and soft insulation insulation layer, according to the diameter of the pipe and the size of the equipment, the use of packaging steel belt, no. 14 ~ 16 galvanized iron wire or width of 60mm adhesive tape for binding. The binding spacing, semi-rigid insulation products should not be greater than 300mm; For soft felt, pad should not be more than 200mm.
3, in order to galvanized iron wire in the surface of the sedimentary layer to local removal of surface film layer, surface inclusion and other defects can be found and treated by conventional technology; Excess foam is formed when soap and surfactants such as saponified fats are brought into the tank. Moderate rates of foam formation may be harmless. The presence of small, homogeneous particles of large denier in the tank can stabilize the foam layer, but the accumulation of excessive solid particles can cause an explosion.
4, with activated carbon mat to remove surface active substances. Or through filtration to make the foam is not too stable, which are effective measures; Other measures should also be taken to minimize the introduction of surfactant. The electroplating speed can be obviously reduced by the addition of organic matter. Although chemical formulations facilitate high deposition rates, the deposition of organic matter does not meet the requirements of coating thickness, so activated carbon can be used to treat the bath.
Post time: 24-09-21