The role of industrial aluminum in the construction of high-speed rail

by:Zeyi     2021-04-26
In recent years, China’s high-speed rail has made China proud. When the United Kingdom and the United States were still using high-speed trains from the last century, my country’s self-developed high-speed rail reached a length of 22,000 kilometers in 2016. Imagine that the earth’s equator is only 4 years old. 10,000 kilometers, what a feat. In addition, I also helped other countries such as Britain, France, the United States, and Germany to build high-speed rail. It can be seen that China's high-speed rail is already a label of modern China. Speaking of high-speed rail, people can think of China. Not high-speed rail, but the hero behind the high-speed rail-high-end industrial aluminum. has become an indispensable material for high-speed rail. High-speed rail must reach a certain speed before it can be called high-speed rail, but it must be fast. Therefore, the lightweight of high-speed rail is an important way to achieve high-speed trains, that is, other conditions are the same. Under the circumstances, the lighter the weight of the train, the faster the speed. And this practice as early as the last century, the United States, Britain and other countries used industrial aluminum in railway construction. From the characteristics of the material to compare aluminum alloy and steel, the density of aluminum alloy is only 1/3 of that of steel, so in the case of the same volume, the weight of aluminum alloy is also 1/3 of that. At the same time, aluminum alloy is light in weight and has high plasticity. High strength, strong corrosion, less pollution, etc., stand out among many materials, so industrial aluminum profile is worthy of the 'best partner' for high-speed rail cars. Generally speaking, the aluminum alloy used in a carriage of a high-speed rail is more than 10 tons. What is the concept? That is, if you use steel, it will take 30 tons, which requires more traction to start the high-speed rail, which greatly limits the speed of the high-speed rail and cannot realize the dream of 'flying' the high-speed rail. The use of aluminum alloy solves all the above problems. , Energy-saving and emission-reduction, multi-tasking. The demand for high-end industrial aluminum profile materials of Xinshida has soared and gradually got rid of imports. Due to the rapid development of high-speed rail, the demand for aluminum profiles has also increased. However, high-speed rail has extremely high technical requirements for the production of aluminum profiles for rail transit car bodies. It is difficult to control, and only 4.5 countries in the world can produce it. Ten years ago, my country's high-speed rail industrial aluminum profile materials were basically imported and expensive. And after the efforts of Chinese enterprises over the years, localization has basically been achieved here, and the dependence on imports has been freed. ————The article comes from the Internet. If there is any infringement, please contact to delete it.
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