It was learned from the University of Shanghai for Science and Technology that behind the sixth major speed increase of the railway is the continuous technological breakthrough on the two rails. As a key technology for train speed-up, the railroad rails are seamlessly welded. At present, the localization rate is close to 100%, and the straightness error of 1.5 meters at the rail interface is less than the diameter of two hair filaments (0.2 mm).
It is reported that the seamless technology research carried out by the second affiliated factory of Shanghai University of Technology has reached the world advanced level. The trial section of the Wuhan (Han) Guangzhou (State) Passenger Dedicated Line, which is about to start, will conduct a 100% localization rate test on seamless welding. If all goes well, it will be promoted across the board. In addition, this technology will ensure that the high-speed railway between Zhengzhou and Xi'an, which is open to traffic next year, will reach a design speed of 350 kilometers per hour and an operating speed of 300 kilometers per hour.
According to Wei Wenjiang, deputy director of the Second Affiliated Factory of Shanghai University of Technology, the interface on the rail is called “the most dangerous wrinkle†in the industry, which reduces the running resistance of trains, improves the running speed of trains, extends the life of locomotives, and reduces the maintenance cost of lines. And the provision of smooth and comfortable travel conditions for passengers has a negative impact. The CKJ-3200 rail pre-weld rust straightening machine, SKJ-2500 four-way CNC rail straightening machine and MK-1000 rail weld CNC refining machine independently researched and developed by Shanghai University of Technology Second Affiliated Factory in recent years have gradually Domestic use not only solves the disadvantages of high price, high cost and language barriers of imported equipment, but also the price is only about 60% of imported equipment.
Extra long seamless track "quietly" running another according to our reporter Lei Yonggang Xi'an on the 18th: With the sixth speed increase of the railway, the sound of the train hitting the rails is expected to disappear in the future, and the train operation is expected to be realized. "Quiet."
It was learned from China Railway Engineering Baoqiao Company that the company, as a leading enterprise in China's railroad track and ballast production, introduced the welded high-manganese steel frogs by VAE welding technology, which opened up a broad space for the development of railway cross-section seamless lines; The domestic pioneering technology of design and development meets the requirements of long-distance seamless lines across sections, making China's future railway rails expected to be seamless.
In line with the sixth major speed increase, China Railway Baoqiao Company has developed and produced more than 20 new types of ballast products. The company also focused on the improvement and research of the ballast, wing rail, sliding bed, ballast lateral speed and the root end structure of the ballast. The design and development of the low stress long core track successfully overcome the existing track and heart track. Diseases such as breaks improve the overall performance and stability of the ballast.
It is reported that the seamless technology research carried out by the second affiliated factory of Shanghai University of Technology has reached the world advanced level. The trial section of the Wuhan (Han) Guangzhou (State) Passenger Dedicated Line, which is about to start, will conduct a 100% localization rate test on seamless welding. If all goes well, it will be promoted across the board. In addition, this technology will ensure that the high-speed railway between Zhengzhou and Xi'an, which is open to traffic next year, will reach a design speed of 350 kilometers per hour and an operating speed of 300 kilometers per hour.
According to Wei Wenjiang, deputy director of the Second Affiliated Factory of Shanghai University of Technology, the interface on the rail is called “the most dangerous wrinkle†in the industry, which reduces the running resistance of trains, improves the running speed of trains, extends the life of locomotives, and reduces the maintenance cost of lines. And the provision of smooth and comfortable travel conditions for passengers has a negative impact. The CKJ-3200 rail pre-weld rust straightening machine, SKJ-2500 four-way CNC rail straightening machine and MK-1000 rail weld CNC refining machine independently researched and developed by Shanghai University of Technology Second Affiliated Factory in recent years have gradually Domestic use not only solves the disadvantages of high price, high cost and language barriers of imported equipment, but also the price is only about 60% of imported equipment.
Extra long seamless track "quietly" running another according to our reporter Lei Yonggang Xi'an on the 18th: With the sixth speed increase of the railway, the sound of the train hitting the rails is expected to disappear in the future, and the train operation is expected to be realized. "Quiet."
It was learned from China Railway Engineering Baoqiao Company that the company, as a leading enterprise in China's railroad track and ballast production, introduced the welded high-manganese steel frogs by VAE welding technology, which opened up a broad space for the development of railway cross-section seamless lines; The domestic pioneering technology of design and development meets the requirements of long-distance seamless lines across sections, making China's future railway rails expected to be seamless.
In line with the sixth major speed increase, China Railway Baoqiao Company has developed and produced more than 20 new types of ballast products. The company also focused on the improvement and research of the ballast, wing rail, sliding bed, ballast lateral speed and the root end structure of the ballast. The design and development of the low stress long core track successfully overcome the existing track and heart track. Diseases such as breaks improve the overall performance and stability of the ballast.
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