Because the density of galvanized sheet coating is much smaller than that of galvanized sheet, under the condition that the thickness of steel substrate and coating is equal, the area per ton of galvanized sheet is much larger than that of galvanized
sheet, which will create more use value for customers.
The components of the coating around the incision section begin to react, forming a dense protective film with zinc hydroxide and alkaline zinc chloride as the main components. The conductivity of the protective film is weak, which can inhibit the corrosion
reaction of the incision section. The silicon contained in the coating can also promote the formation of the above protective film.
So that the demand of galvanized sheet increases too fast. At present, the production scale of galvanized sheet in
our country can not meet the demand of domestic market in terms of quantity, variety and quality.
The surface layer is coated with colored coating with good weather resistance and special strong chemical polyester to ensure that the aluminum zinc
plated steel plate can maintain its original color and luster after many years of use, and the bottom layer is coated with a light gray coating to make the steel plate more beautiful.
Main uses of galvanized steel sheet:
roofs, external walls, garage doors, fences and shutters of civil and industrial buildings.
Automobile industry: automobile muffler, exhaust pipe and catalytic converter heat shield, automobile body bottom parts, road signs.
material is not only environmentally friendly, but also has higher strength, corrosion resistance and decoration. Compared with other materials, it has a longer service life and greatly saves the production cost.
Moreover, galvanized sheet is widely
used in steel, military industry, home appliances, electronics and other industries.