The development and production of new high-speed trains, ships, and large aircraft in our country require a large amount of various high-end materials, and large aluminum profiles are one of them. Therefore, it is an urgent task for China's equipment manufacturing industry to develop and manufacture high-tech large-scale aluminum extrusion and stretching straightening equipment as soon as possible, and accelerate the promotion of advanced equipment for the production of large-scale aluminum profiles manufactured by China itself.
Modern industry urgently needs important materials such as large aluminum materials
The so-called large aluminum profiles mainly refer to aluminum profiles with a width greater than 800 millimeters, an outer circle diameter greater than 250 millimeters, and a delivery length greater than 12 meters. Large aluminum profiles have complex cross-sectional shapes and can reach lengths of up to 60 meters. They are a combination of multiple functions and can achieve the same precision as general mechanical processing products. They are also used as important structural materials for critical parts of machines. Due to the fact that a large aluminum profile can replace the wide and thin-walled aluminum profile components that were previously assembled with two or more aluminum profiles, the structure of mechanical components becomes more reasonable and the surface of the components is improved. At the same time, producing large aluminum profiles can improve extrusion productivity and save costs. Therefore, without large aluminum profiles, the so-called "Made in China" for the production of new high-speed trains, ships, and large aircraft is just empty talk.
More importantly, large aluminum profiles are not only necessary materials for the manufacturing of new high-speed trains, ships, and large aircraft, but also important materials urgently needed in various aspects of China's current high-speed economic development. Manufacturing modern transportation equipment such as subways and light rails, as well as modern weapon production and aerospace in national defense construction.
In recent years, due to the development of industries such as subways, high-speed trains, urban light rail, and aerospace in China, the demand for large thin-walled, wide width, high-precision, and complex cross-section aluminum alloy profiles used for aircraft wall panels, high-speed train bodies, subway and urban light rail trains, maglev train bodies, containers, and marine wall panels has grown rapidly. In the 11th Five Year Plan, the government will invest 200 billion yuan in the construction of subways in major cities in China, and all newly manufactured subway cars will be made of extra large aluminum alloy profiles. According to relevant predictions, the demand for extra large aluminum profiles and aluminum alloy profiles in China will exceed 150000 tons in the next five years. If imported from abroad, the price will be around 10000 US dollars per ton.
The market potential for large-scale extruded aluminum equipment is enormous
Although there are many types of extruders, internationally, extruders with a capacity of 50MN or more are usually referred to as large extruders, and extruders with a capacity of 80MN or more are referred to as heavy-duty extruders. At present, the total number of large-scale aluminum extrusion equipment produced domestically and internationally does not exceed 40 units.
The large-scale aluminum extrusion equipment abroad was mostly produced before the 1970s, mostly using hydraulic presses with outdated technology. In recent years, the United States, Germany, Japan, South Korea, and other countries have added 4 to 5 large extruders. There are currently 7 large-scale aluminum profile production lines in operation in China, and 5 large-scale aluminum profile extrusion machine production lines under construction. In the next 5 years, China will also build more than 10 large-scale extrusion production lines.
Large extruders have a huge potential market in China and are also showing an increasing demand trend abroad. Countries such as Southeast Asia and India are still in the early stages of developing large-scale extruders, but it is estimated that multiple large-scale extruder production lines will be put into operation within the next 10 years.
The research and development of large-scale aluminum extrusion equipment have always been highly valued by developed countries, and many countries have established relevant technology research centers. Among them, the more famous ones include the BCTiin Extrusion Technology Center in Germany, the KENTCKY Extrusion Technology Center in the United States, and the HYDRO Extrusion Technology Research and Engineering Technology Research Center in the United Kingdom. China started relatively late in the research and development of large-scale aluminum extrusion technology and equipment, not only lagging behind foreign countries in terms of research methods and techniques, but also in terms of manpower and financial investment. In the research and development of large-scale aluminum profile equipment, China Heavy Machinery Research Institute (Xi'an Heavy Machinery Research Institute) and Taiyuan Heavy Industry Co., Ltd. are in a leading position domestically.
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