From October 11 to 12, at the "High-Level Seminar on Bearing Technology and Industrial Development in High-end Equipment Manufacturing" sponsored by the Chinese Academy of Engineering, the Wazhou Group and Xi'an Jiaotong University, the Chinese Academy of Engineering Lu Bingheng and 7 academicians and 18 researchers Institute experts agreed that China’s major equipment is in urgent need of high-end bearings, and high-end bearing research projects will also be the most likely to achieve breakthroughs in the “Twelfth Five-Year Plan†period.
At the meeting, the participating academicians and experts discussed the development of high-end bearing technology in China. High-speed railway bearings and high-end CNC machine tools have become hot topics. Wei Guo, expert of the Iron and Steel Research Institute, Pan Jiansheng, academician of the Chinese Academy of Engineering, and Wang Bi, chief scientist of the “973†high-performance rolling bearing basic research project of the Ministry of Science and Technology, reported on the manufacturing materials, thermal processing, and basic theoretical research of high-speed railway train bearings respectively. Latest research results.
As one of the main contents of the "973" project of the Ministry of Science and Technology of China, the "High-performance Rolling Bearing Basic Project" is undertaken by six scientific research institutes including the Chinese Academy of Sciences, Shanghai Jiaotong University, and Xi'an Jiaotong University. The tile shaft is the only one that participates in this project. The chief scientist of the project, Wang Xin, said in an interview with reporters that the “High-performance Rolling Bearing Basic Project†is mainly aimed at the bearings of China's major equipment such as CNC machine tools, high-speed railways, and aero-engine spindles. Currently, these bearings are 100% dependent on imports. The "973" project was listed as a national major scientific research project because the project is fully in line with the country's economic development direction. If the high-speed railway is a key development project of the country in the next few years, bearing has become a serious bottleneck. In Europe and America, high-speed railway bearings can meet the demand of 350 to 400 kilometers per hour, while China's current high-speed bearings can only meet the EMUs of 150 to 180 kilometers. Such a large gap, if used in accordance with the past to take the basic components of large projects in China The development is clearly out of time. Moreover, the practice has proved that this mode of development is also unsuccessful, because the cost of bearings on any host is negligible, but its role is very large. This kind of low-cost and high-risk things, the host The factory is not willing to do so we must take the initiative to accelerate the pace of development and rush ahead of time.
Lu Bingheng, an academician of the Chinese Academy of Engineering, said that high-end bearing R&D involves a series of technical problems such as materials, grease and lubrication, manufacturing, design, bearing manufacturing equipment, testing and testing, as well as contact mechanics, lubrication theory, tribology, fatigue and damage, heat treatment and Basic research and cross-disciplines such as material organization. We must make key arrangements in terms of industrial development policies and technological development plans to solve the problem of the lag in the development of high-end bearings in the equipment manufacturing industry. Only by organizing multi-faceted forces to tackle problems and combining production, education and research can we accomplish the task of moving toward high-end bearings. The academicians and experts at the conference suggested that the Chinese Academy of Engineering should organize academicians and experts to conduct special studies to investigate and discuss the issues concerning the demand for high-end bearings in China's major equipment, the technical difficulties faced in its development, the road map for technology development, industrial development policies and the environment. An advisory report was formed as a reference for the country to formulate plans and plans for industrial development.
According to Wang Lushun, Chairman of Wazhou Group, as a participant in the national “973†project for major basic research projects, Wazhou Group is working closely with Xi'an Jiaotong University and other 8 participating companies to create a close cooperation model for production, learning and research, and to promote the production technology of the company. Combine with scientific research achievements. At present, Wazhou Group has independently developed high-speed axle box bearings. Bearing has a good seal, high-speed lubrication under high temperature stability, special high-quality carburized steel materials, to ensure the bearing life and operational reliability. The completed gantry performance test works well and is undergoing durability testing. At the same time, Zhaxi Group carried out research on the design, manufacture and testing of machine tool bearings, and successfully developed high-end CNC machine tools supporting bearings for many domestic well-known machine tool companies. In particular, major breakthroughs have been made in the development of heavy machine tool bearings.