Shulou(Shulou.com)11/24 Report--

Thanks to CTOnews.com netizen Harry12345 for the clue delivery! CTOnews.com, March 13, China Railway Group said that China has started the development of 400km / h CR450 high-speed EMU and the construction planning of Chengdu-Chongqing high-speed rail line in 2021, further maintaining China's leading advantage in the field of speed (CTOnews.com Note: Fuxing series EMU English code CR).

In April 2022, it was independently developed by China and the world's leading new type of Fuxing high-speed comprehensive testing train was put into operation. As a new technology verification platform for high-speed EMU, the car participated in the early test of the development of CR450 EMU, setting a record speed of 435km / h and 870km / h at the intersection of the two cars.

According to the wonderful painting news, the manufacturing link of the first car painting unit of China's CR450 EMU experimental project has been successfully completed, and the CR450 EMU has been successfully delivered, waiting to be reordered. As can be seen from the picture, yellow is the main color in the painting of the first car of the CR450 EMU experimental project.

At present, the Fuxing train has three speed classes of CR400/300/200, the number represents the highest speed, and the continuous speed corresponds to 350,250 and 160km / h respectively, which is suitable for high-speed railway (high-speed railway), high-speed railway (fast railway) and inter-city railway (urban railway).

This EMU train, with the participation of CRRC Qingdao Sifang Locomotive and Rolling Stock Co., Ltd., Jilin CRRC Changchun Rail bus Co., Ltd., and CRRC Tangshan Locomotive and Rolling Stock Co., Ltd., completed the relative rendezvous verification test in April last year, setting a new world record for EMU rendezvous at a speed of 870 km / h.

Since April last year, the CR450 EMU of CRRC Sifang has carried out preliminary tests on the development of Jizheng high-speed railway and Zhengzhou-Chongqing high-speed railway, and successively carried out more than 60 scientific tests on vehicle dynamics, aerodynamics, resistance and noise under open line (ground) and tunnel environments, as well as high-speed operation and high-speed rendezvous. For the first time in the world, an open-line rendezvous with a speed of 435 km / h and a relative speed of 870 km / h, and a tunnel rendezvous with a speed of 403 km / h and 806 km / h have been successfully realized for the first time in the world. the characteristic data of EMU trains and high-speed railway subgrade and tunnel under different working conditions are obtained, and the relevant indexes perform well, which provides an important reference for studying the changing law of train safety and comfort.

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