November 11, 2022
Galvanized coil, dip a thin steel plate into a melted zinc tank, so that the surface adhered to a layer of zinc sheet steel. At present, continuous galvanizing process is mainly used for production, that is, continuous immersion of rolled steel plates in the melting of zinc in the plating tank to make galvanized steel plates; Alloyed galvanized steel plate. The steel plate is also made by hot dipping, but immediately after it is out of the groove, it is heated to about 500℃ to create an alloy coating of zinc and iron. This galvanized coil has good coating tightness and weldability.
But galvanized coil also has many defects, mainly include: falling off, scratches, passivation spots, zinc particles, thick edge, air knife marks, air knife scratches, exposed steel, inclusions, mechanical damage, poor steel base performance, wave edge, bending, size mismatch, embossing, zinc layer thickness mismatch, roll printing and so on.
Galvanized coil 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 grids, etc. The light industry uses it to manufacture household appliance shell, civil chimney, kitchen utensils, etc., and the automobile industry is mainly used to manufacture corrosionproof parts of cars. Agriculture, animal husbandry and fishery are mainly used as food storage and transportation, meat and aquatic products frozen processing equipment, etc. Commercial mainly used as material storage and transportation, packaging tools, etc.
