First, the principle is different Hot-dip galvanizing: The principle is to immerse the steel component in molten zinc to obtain a metal coating. Cold galvanizing: The principle is that the processed steel device is degreased, pickled and put into a solution of zinc salt, and after connecting the electrolysis device, a layer of zinc is deposited on the steel device by electrochemical principle.
Third, the performance and advantages are different
Hot-dip galvanizing: Durable and durable, the standard quality of hot-dip galvanized rust-proof thickness makes it extremely durable; the toughness of the coating is strong, and the hot-dip galvanized galvanized layer forms a unique smelting metal structure. The structure can withstand mechanical damage during shipping and use. Cold galvanizing: Excellent environmental performance. Most cold-galvanizing solvents and diluents do not contain highly toxic organic solvents, and the cold-dip galvanizing process also reduces the amount of organic solvent volatilization, reduces drying energy consumption, and is environmentally friendly.
Fourth, the application is different
Hot-dip galvanizing: Due to its good anti-corrosion properties, hot-dip galvanizing is widely used in electric power towers, communication towers, railways, highway protection, streetlight poles, marine components, building steel structural components, substation ancillary facilities, light industry, etc. Cold galvanizing: Cold galvanizing is the main development direction of environmental protection for heavy-duty coatings.
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