ã€China Aluminum Industry Network】The quality characteristics of the GL board determine its wide application in the construction, automotive and other industries: 1) Construction industry: use instead of hot galvanized sheet, such as roof, wall, waterproof sheet, etc. 2) Automobile industry: instead of aluminum plate and aluminum plate, such as bottom plate, molded inner plate, oil filter tube, exhaust system components, and silencer system components, etc. 3) Household Appliance Industry: Bakery ovens, refrigerators, air conditioners, stoves, ovens, heat exchanger components, etc. 4) Industrial Instrumentation: Heaters, Vending Machines, Combustion Components, Industrial Refrigerated Cabinets, etc. Pangang Hot-dip Aluminium-zinc Alloy Units and Products In order to meet the demand of customers in the high-end construction and household appliances industry in China for hot-dip galvanizing and hot-dip aluminum-zinc alloy plating, Pangang has invested RMB 600 million to build No. 2 continuous hot-dip galvanizing unit (2#CGL), which was already in 2004. May was completed and put into production. The #2 CGL unit adopts the world's first-class equipment and process technology and has the following features: 1) Specialized degreasing and cleaning section is provided, and multi-stage compound enhanced cleaning means such as alkali cleaning, brush roller scrubbing and electrolytic degreasing are used, thereby greatly improving the adhesion of the coating and the surface quality of the product. 2) Using France STEIN vertical annealing furnace, full-radiant tube indirect heating, not only can improve the product coating adhesion and plate shape, but also can make the product more stable mechanical properties, according to the needs of users and provide ultra-deep leveling to Full hard grade hot dip galvanized products with different strength levels. The annealing section at the outlet of the annealing furnace is provided with a heat tensioning roller, which can realize the subsection control of the tension in the furnace and the zinc pot section at the back of the furnace, which helps to improve the uniformity of the coating thickness and the surface quality of the coating. 3) Double zinc pot system, one set of zinc pot to produce hot-dip aluminum-zinc alloy coating products, and the other set of zinc pots to produce ordinary hot-dipped pure zinc coating products. The zinc pot is the United States AJAX electric induction heating ceramic zinc pot, which is more conducive to reducing the generation of zinc slag than the iron zinc pot, which is conducive to the improvement of the surface quality of the coating. 4) Using lead-free hot-dip galvanizing and chromium-free passivation technology, the coating is free of lead, chromium and other toxic substances, which is conducive to environmental protection. 5) The DAK air knife manufactured by Mexico IMSA, with a dynamic automatic control system, ensures the uniformity of the coating thickness and the surface quality of the coating. 6) Using the French CLECIM four-roll mill and its six-roll stretch bending leveler to ensure the strip shape and surface quality, and is conducive to the improvement of product stamping performance. 7) Using the French STEIN vertical roll coater to coat thin organic coatings to produce environmentally friendly products such as fingerprint resistant, self-lubricating plates. Therefore, the Panzhihua Iron and Steel No. 2 continuous hot dip galvanizing line has laid a solid foundation for the production of high-quality, environment-friendly hot-dip aluminum-zinc alloy coating products (as shown in Table 2) with world-class equipment.
