In-depth analysis of galvanized coil

Galvanized coil steel products are mainly used in construction, light industry, automobile, agriculture, animal husbandry, fishery and commercial industries. The construction industry is mainly used for the manufacture of anti-corrosion industrial and civil building roof panels, roof grilles, etc. The light industry uses it to manufacture household appliance shells, civil chimneys, kitchen utensils, etc., and the automotive industry is mainly used to manufacture corrosion-resistant parts of cars. Agriculture, animal husbandry and fisheries are mainly used as food storage and transportation, meat and aquatic products frozen processing equipment; Commercial mainly used as materials storage and transportation, packaging tools, etc.

The use of galvanized steel plate for the color coated steel plate, in addition to zinc protection, the organic coating on the zinc layer plays a covering isolation role, can prevent the rust of the steel plate, the service life is longer than the galvanized steel plate, according to reports, the service life of the coated steel plate is 50% longer than the galvanized steel plate. However, in different regions and different parts of use, using the same amount of galvanized, the same paint, the same coating thickness of the color coated plate, its service life will be very different.

For example, in industrial areas or coastal areas, due to the action of sulfur dioxide gas or salt in the air, the corrosion rate is accelerated, and the service life is affected. In the rainy season, the coating is soaked by rain for a long time, or in the parts where the temperature difference between day and night is too large and easy to dew, it will be corroded faster, and the service life will be reduced.