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Shape the improvement of cement Raymond mill liners

By Subscribe to RSS | August 15th 2012 | Views:

Shape the improvement of cement Raymond mill liners

the world's largest pressure forging presses --- 800MN (8 tons) multi-directional forging press (coonly known as large presses) independent construction, will be China's second heavy machinery company.November 29, the China Machinery Industry Federation in Beijing hosted 800MN multi-argument to the forging press the overall project program. Council experts spoke highly of this project.Experts from the aviation industry Zengfan Chang said it is the world's top product, the level of production will allow our large aviation forging a qualitative upgrading and change the world's large aviation forging production patterns.The two re-Group, deputy chief engineer is Chen Xiaoci say, 80,[rock crusher:] 000 tons of press, the main components of both the weight and size are excessive level of single piece weighs more than 250-ton parts no less than seven, can imagine the difficulty of making. Use an increasing proportion of the construction of large and medium-sized aircraft need to press modern aircraft manufacturing, light metal (mainly titanium).More use of light metals, the performance of the aircraft can continue to improve.However, the light metal such as titanium, deformation requires a high unit pressure.To the production of light metal die forging presses must be a substantial increase in work pressure. Currently, the world has a 4-ton forging presses countries only the United States, Russia, France and the three countries, including the United States with 50,jaw crusher000-ton, France has 65,000 t-class 1, Russia has a 7.5-ton 2 units. The big press is essential for the construction of large aircraft parts needed equipment.According to insiders, the world's largest passenger aircraft market, Airbus is so able to later home, to produce the A380, an important factor in the production of large forgings to seek alicey599 the help of Russia, forming the A380 landing gear is in Russia 75000 ton presses to complete.This difference in the equipment to become an important factor in competition between Boeing and Airbus. China had long been determined to produce large presses.In 1975, the former Ministry of Machine and three machine department submitted to the then State Planning Commission to consult the report on the construction of the base of the large-scale forging hydraulic press,rock crusher and has been approved.However, due to the prevailing conditions, only completed the design and prototype manufacturing, the ultimate goal has not been achieved. 30 years later, the absence of large presses, the development of China's aerospace industry are severely constrained.This year issued by the State Council on jaw crusher:

Accelerating revitalize the equipment manufacturing industry views ", a key development project is the regional aircraft and medium-sized transport aircraft, and large presses is the production of essential equipment and medium-sized transport aircraft. Facts of the challenges of large-scale limit equipment manufacturers, in addition to the aerospace industry, and other important industrial sers require large forgings.Chen Xiaoci to reporters cited the large presses other important purposes: gas turbine large roulette forging, the flue gas turbine with a large wheel forgings, all kinds of engine blades, large marine forging, power plants with a large forging pressure vessel forgings, as well as the forging of other types of civilian goods production, are inseparable from the press. In the past,cone crusher

no big press, the production of large forgings by casting or free forging.Due to high material consumption, and the lack of precision, resulting in some of the forgings have to import.Press construction, will also enable the production of many of the workpiece by casting into forging, free forging into forging, so that product quality would be enhanced. Chen Xiaoci 80,000 t press are completely independent intellectual property rights.He said that the unremitting efforts of several generations of Chinese manufacturing enterprises and research institutes in the overall structure and the technical aspects of large presses a breakthrough.So the technology does not exist any major obstacles, just the application of modern control technology to the big press. However, the construction of the 80,000 tons of press, after all, is a large and complex systems engineering, there are still some of the key technology needs to overcome.According to reports, in the past year or so time, two re-Group has been with the Mechanical Institute of Science and Technology,jaw crusher Central South University, Tsinghua University, Yanshan University, Chongqing University, Northwestern Polytechnical University, Nanchang Institute of Aeronautical Engineering, Xi'an Heavy Machinery Research Institute, Beijing Institute of Aeronautical Materials, and other units on the project's early R & D project work, inars, and reached a letter of intent for joint research of large forging hydraulic press design and manufacturing technology research projects. Chen Xiaoci said to embody the era of the big press mark, emphasized that innovation is at the same time Bu Wei.After all, 80,000 tons press is currently the world's largest press, should reflect the world level, may not rule out the appropriate introduction of foreign advanced technology. "But this is a local, rather than the whole. "He also told reporters that in the process of technical exchanges with foreign counterparts to the project of the United States, Russia, France and other countries also expressed a keen interest. - About Author:
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