400MN large die forging hydraulic press was formally put into operation in Xi'an Yanliang National Aviation High-tech Industrial Base

　　Guide: Recently, a 400MN (40,000 tons) large die forging hydraulic press constructed by Xi'an Delta Aviation Technology Co., Ltd., located in Xi'an Yanliang National Aviation High-tech Industrial Base, was successfully put into use, marking that China's first 400MN large die forging hydraulic press has been equipped. The normal production capacity can meet the production demand of large-scale die forgings in China. This die forging hydraulic press can forge the ultra-high-strength steel die forgings of the large landing gear of an advanced aircraft in one shot, which solves the problem that the current forgings cannot be qualified in China. In addition, the die forging machine can also forge the area in one shot. 0.98m2 aircraft super-large structural titanium alloy TC18 die forgings and forged large-scale disc type high-temperature alloy GH698 die forgings with a diameter of 1020mm.

　　400MN large die forging hydraulic press is currently the world's largest single-cylinder precision die forging hydraulic press. It has the characteristics of good rigidity, stable pressure, high pressing accuracy, and good consistency of batch forgings. It can achieve speed controllability (0.01mm / s-60mm). / s can be selected and switched arbitrarily), precise control of pressure controllable and displacement controllable. Its application is mainly used for the integral die forging of large components such as aluminum alloys, titanium alloys, high temperature alloys, and high-strength alloy steels. The main products produced include: large-scale transport aircraft, new-generation fighter aircraft, large-scale civil passenger aircraft, various frames, beams, and other overall structural parts, aero-engine overall disks, and other large-scale military and civilian precision industries such as aviation, aerospace, ships, weapons, nuclear industries Die forgings.

　　The die forging hydraulic press has received the attention of the party and the party during the research and development process. During the construction process, it has received high attention from relevant departments such as the Ministry of Industry and Information Technology, the Ministry of Science and Technology, the Development and Reform Commission, the Ministry of Finance, the General Administration of Customs, the General Administration of Taxation, the National Defense Science and Industry Bureau Strong support is the national "Eleventh Five-Year Science and Technology Support Plan" project, which is supported by the state's "tax policy for the development of major technology and equipment." The die forging hydraulic press is designed by Tsinghua University, and built by China Metallurgical Group Corporation No. 22 Metallurgy. Xi'an Delta Aviation Technology Co., Ltd. is the user side.

　　The 400MN large die forging hydraulic press is based on decades of engineering accumulation in the heavy hydraulic press development team of the Department of Mechanical Engineering of Tsinghua University. It is based on the advanced steel wire prestress splitting-Kanhe technology and adopts the "production, learning, research" mode. Independent innovation, independent design, and independent manufacturing of heavy equipment. The overall performance of the equipment has reached the world advanced level. It is a model project of China's "production, learning, research, and use" combined with scientific and technological innovation. After that, the fourth country has a 40,000-ton forging press.