Advantages of hot dip galvanized products
With the discovery of industry, hot-dip galvanizing products have been used in many fields. The advantage of hot-dip galvanizing is that it has long anti-corrosion life and can adapt to a wide range of environments. It has always been a very popular anti-corrosion treatment method. It is widely used in power towers, communication towers, railways, highway protection, street light poles, marine components, building steel structure components, substation ancillary facilities, light industry, etc.
(1) The anti-corrosion life of hot-dip galvanizing is long, but the anti-corrosion life is different in different environments: 13 years in heavy industrial areas, 50 years in the ocean, 104 years in the suburbs, and 30 years in the city.
(2) Principle of hot-dip galvanizing: Clean the iron parts, then treat them with solvent, dry them and then immerse them in zinc liquid. The iron reacts with the molten zinc to form an alloyed zinc layer. The process is: degreasing--washing-- Pickling--assisted plating--drying--hot dip galvanizing--separation--cooling passivation.
(3) The thickness of the hot-dip galvanized alloy layer mainly depends on: the chemical composition such as silicon content of the steel, the cross-sectional area of the steel, the roughness of the steel surface, the temperature of the zinc pot, the zinc immersion time, the cooling speed, and the cold rolling deformation. wait.
Advantage:
(1) Low processing costs: The cost of hot-dip galvanizing for rust prevention is lower than that of other paint coatings;
(2) Durable: In suburban environments, the standard hot-dip galvanized anti-rust layer can last for more than 50 years without the need for repairs; in urban or offshore areas, the standard hot-dip galvanized anti-rust layer can last for 20 years without the need for repairs. repair;
(3) Good reliability: The galvanized layer and the steel are metallurgically bonded and become part of the steel surface, so the durability of the coating is relatively reliable;
(4) The coating has strong toughness: The zinc coating forms a special metallurgical structure, which can withstand mechanical damage during transportation and use;
(5) Comprehensive protection: Every part of the plated parts can be plated with zinc, even in depressions, sharp corners and hidden places, they can be fully protected;
(6) Save time and effort: The galvanizing process is faster than other coating construction methods, and can avoid the time required for painting on the construction site after installation.