Hot-dip galvanized steel sheet is a high-quality alloy coating product widely used in construction, automotive, home appliances and color coating, packaging and other industries. A large number of experimental studies have shown that the salient features of hot-dip galvanized steel sheet are its excellent corrosion resistance and hot-humidity resistance. Compared with ordinary hot dip galvanized steel sheet, its corrosion resistance is improved by 2 to 6 times, and its heat and humidity resistance is improved by 3 Over the same time, at the same time, it has been proved by experiments that the hot-dip galvanized steel sheet also has high-temperature corrosion resistance performance, and it can be oxidized at a high temperature of 315°C for one week (168 hours) without discoloration; even when the temperature is as high as 700°C It still has the ability to resist severe oxidation and scale production, while the maximum working temperature of ordinary hot-dip galvanized steel is only 230 °C. In addition, the hot-dip galvanized steel sheet is excellent in cold-formability, fixability, weldability, and paintability. The surface is very beautiful and can be used without painting.
Hot-dip galvanized steel production technology is high, difficult, and complicated. In the past, only a few countries had mastered this technology. Pangang researchers have introduced advanced hot-dip galvanized steel equipment from France, Germany and the United States in recent years. , And in May this year, China's first production line capable of producing high-grade hot dip galvanized products was completed. Since the production line was put into production for more than three months, scientists and technicians have succeeded in the technology digestion and arduous research. The lead-free small zinc flower hot-dip galvanized sheet, hot-dip galvanized fingerprint-proof plate, hot dip galvanized aluminum plate, and hot-dip aluminum plate have been successfully produced. High-end products such as zinc plates are urgently needed. Among them, the recently-produced hot-dip galvanized sheet not only satisfies domestic demand, but is also sold to the United States, marking a new breakthrough in the production technology of special steel in China.
