Galvanized steel plate is a welded steel plate with hot dip coating or electro-galvanized coating on its surface. Hot dip galvanized products are widely used in construction, household appliances, vehicles and ships, container manufacturing, electromechanical industry and so on. The automobile industry pays more and more attention to the service life of materials, and the requirements of corrosion resistance can no longer be met by painted cold-rolled steel plates. In this case, the hot-dip galvanized sheet with excellent corrosion resistance and low cost began to be widely favored by automobile manufacturers. The biggest advantages of coated steel plate are excellent corrosion resistance, paintability, decoration and good formability. In recent years, the consumption of coated steel plate for automobile has been increasing, and it has become the main body of thin plate for automobile. Countries all over the world are studying how to expand the varieties and specifications of coated plates, improve the coating process, and then improve the coating quality, that is, corrosion resistance, pulverization peeling resistance, paintability and weldability.

The formability of coated board has always been an important aspect of its application, which mainly depends on the performance of substrate, coating process, performance and forming process conditions. Through the cooperation of comprehensive advanced technology, good application effect can be achieved.

Main application industries of galvanized steel sheet: a large number of galvanized steel sheets are used in automobile manufacturing, refrigerators, buildings, ventilation and heating facilities, furniture manufacturing and other fields. Zinc plating has become an important anti-corrosion method for steel, not only because zinc can form a dense protective layer on the surface of steel, but also because zinc has cathodic protection. When the galvanized layer is damaged, the corrosion of iron-based materials can still be prevented by cathodic protection? Roof, roof components, balcony panels, window sills, newsstands, warehouses, rolling doors, heaters, rainwater pipes, etc. In the construction industry? Household appliances refrigerators, washing machines, switch cabinets, air conditioners, microwave ovens, toasters, copiers, vending machines, electric fans, vacuum cleaners, etc. Furniture industry lampshades, wardrobes, tables, bookshelves, counters, signboards, medical equipment and other transportation industries, such as car roofs, car shells, car panels, tractors, trams, containers, highway guardrails, and ship cabin panels? Other musical instrument shells, trash cans, billboards, clocks, photographic equipment, meters, etc.