Hot dip galvanizing is dipped in the zinc liquid melted by heating, the production speed is fast, the coating is thick but not uniform, the market allows a low thickness of 45 microns, up to 300 microns or more. The color is dark, the consumption of zinc metal is more, the infiltration layer is formed with the base metal, the corrosion resistance is good, and the hot dip galvanizing can be maintained for decades in the outdoor environment.
Application of hot dip galvanizing: Because the resulting coating is thicker, hot dip galvanizing has better protective properties than electric galvanizing, so it is an important protective coating for steel parts used in harsh working environments. Hot-dip galvanized products are widely used in chemical equipment, petroleum processing, Marine exploration, metal structure, power transmission, shipbuilding and other industries, in the field of agriculture such as sprinkler irrigation, heating and construction such as water and gas transmission, wire bushing, scaffolding, Bridges, highway guardrail and other aspects, has been widely used.
In order to pack and bundle the electrogalvanized wire, the defects such as surface film and surface inclusion can be found and treated by conventional technology. Excess foam is caused by the surfactant of soap and saponifiable fats being brought into the tank. A moderate rate of foam formation may be harmless. The small homogeneous particles of large denier present in the tank can stabilize the foam layer. Mat with activated carbon to remove surface active substances. Or filter to make the foam less stable, which is an effective measure; Other measures should also be taken to reduce the amount of surfactant brought in. The introduction of organic matter can significantly reduce the plating speed. Although the chemical formulation is conducive to a high deposition rate, the thickness of the coating cannot meet the requirements after the organic matter is brought in, so activated carbon can be used to treat the bath.
Post time: 20-10-23