Although through continuous efforts, China's CNC system has made great progress, but more than 90% of the CNC systems supported by China's high-end CNC machine tools are foreign products, especially for high-end CNC machine tools urgently needed by the defense industry. High-end CNC systems determine machine tool equipment. The key factors of performance, function, reliability and cost, and foreign countries still block the restrictions of China, which has become the bottleneck restricting the development of high-end CNC machine tools in China. In order to accelerate the development of the numerical control technology industry, the state has issued a series of policies, including the State Council approved the implementation of the "equipment manufacturing adjustment and revitalization plan" and "high-end CNC machine tools and basic manufacturing equipment" national science and technology major special program, creating for China's CNC technology industry A good external environment. The Equipment Manufacturing Industry Adjustment and Revitalization Plan clearly states: adhere to the combination of equipment autonomy and key construction projects, adhere to the combination of independent development and introduction of digestion and absorption, adhere to the basic principles of combining the development of the whole machine with the improvement of the basic supporting level, and improve the numerical control. The market share of basic supporting components such as systems is an important part of implementing equipment autonomy. The national science and technology major project "High-end CNC machine tools and basic manufacturing equipment" also proposed that by 2020, the market share of domestic high-end CNC machine tools should be greatly improved. According to the requirements of one of the major national science and technology projects, "High-end CNC machine tools and basic manufacturing equipment", by 2020, the domestic CNC system used in domestic and high-end CNC machine tools will have a market share of more than 60%; the domestic high-end CNC system market will have 120,000. The alternative space of Taiwan is huge in the future industry.
Weathering steel, i.e. atmospheric corrosion-resistant steel(Corten Steel), is a series of low-alloy steel between ordinary steel and stainless steel. Weathering steel is made of ordinary carbon steel with a small amount of corrosion-resistant elements such as copper and nickel. It has the characteristics of toughness, plasticity, forming, welding and cutting, abrasion, high temperature and fatigue resistance of high-quality steel. The weathering resistance is 2-8 times of ordinary carbon steel and the coating performance is 1.5-10 times of ordinary carbon steel. At the same time, it has the characteristics of rust resistance, corrosion resistance, life extension, thinning and consumption reduction, labor saving and energy saving. Weathering steel is mainly used in railway, vehicle, bridge, tower, photovoltaic, high-speed engineering and other steel structures exposed to the atmosphere for a long time. It is used to manufacture containers, railway vehicles, oil derricks, seaport buildings, oil production platforms and containers containing hydrogen sulfide corrosive medium in chemical and petroleum equipme.
Weather Resistant Steel Plate,Weather Resistant Plate,Corten Steel Plate,S355J2W Steel Plate,Weather Resistant Steel Sheet Shandong Guanzhou Iron and Steel Group Co., Ltd , https://www.cnshansteel.com