The picture shows the maglev train
As a big country that has bred five thousand years of civilization, China is vast and has a vast land, in order to solve the problem of people's travel inconvenience, the relevant departments not only vigorously build roads, but also design different modes of travel, but now with the continuous development of science and technology, ordinary travel methods can not meet people's daily needs, so, on the basis of learning from the technology of other countries, the railway construction company has developed a maglev train, the speed can be as high as 400 kilometers per hour! This speed can be said to be among the forefront in the world, so it has also attracted many foreigners to come, when they sit on the maglev, they suddenly shouted: completely breaking the cognition, and even many people sighed on the spot: I really can't believe that this technology is 10 years ahead of the United States.
The picture shows the Shanghai maglev train
This train praised by foreigners is the first maglev train built by Shanghai Pudong International Airport, it uses the constant conductivity magnetic absorption technology imported from Germany, at a speed of 400 kilometers per hour, the one-way passage time is only eight minutes, after the opening in 2006, the maglev train system has been promoted to many cities across the country, with the continuous improvement of technology, China's independent research and development of maglev trains, has not only satisfied with the speed of 400 kilometers per hour, other performance indicators are also constantly being refreshed.
So, what exactly does the maglev train work? It is based on the principle of electromagnetic levitation that attracts and repels each other, the use of magnets to let the vehicle levitate up, and then through the electromagnetic force to guide the train forward, in the world, Japan and Germany have long made achievements, Japan's maglev train uses superconducting magnetic levitation system, the levitation force is large, the running speed is fast, and Germany uses the constant conductivity high-speed magnetic levitation technology, the technology is relatively simple, but the electromagnetic attraction on the track is relatively small, and it is precisely because the technology of these two countries is more mature, the United States has given up independent research and development, in contrast, China has always adhered to the spirit of independent research and development, so it can develop a maglev train with the logo of Made in China.
In fact, many people also wonder about this, China's high-speed rail has now made breakthroughs in terms of speed, and the construction cost of maglev trains is high, so why develop it? First, because compared with ordinary wheel rail trains, maglev trains reduce maintenance and operating costs due to the lack of wheels, and the service life is longer, and second, maglev trains, regardless of speed, in the absence of wheels and rails for friction and vibration, the noise is relatively small, and the climbing ability is stronger, which is incomparable to ordinary trains.
The third point is the most important, that is, the construction of maglev trains, is conducive to seizing the commanding heights of the technical level of rail transit, and when the technology of many countries has not been completely conquered, it can maintain the forerunner advantage in this field, the current top speed of Germany has reached 530 kilometers per hour, Japan has achieved a test speed of 603 kilometers, and China's current maximum speed of maglev trains has successfully rolled off the line in Qingdao in July this year, and its speed has reached 600 kilometers per hour, although it is temporarily ranked second. But this also makes Japan, which has long occupied the top spot in the field of high-speed rail, really sweat.
As of last year, China's total high-speed rail operating mileage has reached 36,000 kilometers, this data has accounted for two-thirds of the world's total high-speed rail mileage, ranking first in the world, in contrast, the United States, which has always regarded the country as a competitor, has always wanted to replace the country's position in the field of infrastructure, but its dilapidated infrastructure, as well as the backward transportation system, have exposed its military and disregard for the false face of people's livelihood, for example, in the last century, Florida in the United States planned to build a maglev train, and as a result, more than two decades have passed, there is still no progress, and China, which has always put people's livelihood in the first place in development, has long been ahead of the world in infrastructure And it still remains full of enthusiasm, continuing to write a new chapter that highlights China's strength.