Beijing Zhangjiakou high speed railway, the pride of Chinese people

"The main line of Beijing Zhangjiakou high speed railway is 174 kilometers long, with the maximum design speed of 350 kilometers per hour. It is an intelligent high-speed railway with Beidou satellite navigation system independently developed by China. It can arrive from Beijing to Zhangjiakou within one hour..." A 6031 a 6031 looks at this string of numbers, listens to the reports in the news, looks forward to the appearance of the fashionable and cutting-edge motor car, laments the rapid development of science and technology in China, is pleased with the happy and healthy life of the Chinese people, and is proud that I am a Chinese! A 6031 a 6031 introduced the "harmony" of joint development and production of technology from 2004 to 2017, which is completely self-contained. "Fuxing" with the main intellectual property right, and now the intelligent high-speed railway using Beidou satellite navigation system independently developed by China, with the rapid development of science and technology, China's high-speed railway rapidly changed from "catching up" to "leading", and continued to create a miracle that shocked the world!

"forms its own innovation ability!" is the pursuit of high-speed railway developers. It's hard to start with anything. We start with "Introduction" and develop with "innovation". In the fierce market competition, the core technology can not be simply bought by money. The influence of network control system, bogie manufacturing and R & D, and environmental geology has hindered the way forward of China's high-speed rail. The more so, the more the desire of high-speed rail researchers is aroused! Under the leadership of CRRC Changke chief engineer Liu Changqing, the research team compiles and reviews it day and night. Many experiments have been carried out to verify that the intelligent "Chinese brain" has been installed for China's high-speed railway; the "seven step operation method of circumferential welding" by Li Wanjun, the first-line welder, has solved the problem of circumferential welding at the joint of bogie crossbeam and measuring beam; Shi Haiming, an expert in CRRC's long-distance passenger door system, has solved the problem that individual doors cannot be closed due to the large temperature difference between morning and night in the city and the air pressure difference between inside and outside the car. The difficulty of command gives the high-tech content to the high-speed railway sliding door. In every attempt to make progress in science and technology,

is full of the sweat and tears of countless railway people, and endless technical problems are solved one by one. We have proved the leap from "made in China" to "created in China" with practical actions! Today, we have more than two-thirds of the total mileage of global high-speed rail! The high-speed rail running vertically and horizontally is like Dragon flying in China, let us firm the pace of scientific and technological innovation, use our blood and youth to polish the "China Railway" golden signboard! (Wen / Qi Feifei)