Introduction to rail transportation aluminum alloy December 28, 2020 1:05 AM
By : yang
With the continuous development of my country's rail transit industry, rail transit has become the main mode of transportation for people’s daily travel. The body parts are one of the most important components of rail transit vehicles, mainly consisting of the underframe, the left and right sidewalls, and the front and rear sides. The end wall and ceiling are composed of six modules. Rail transportation aluminum alloy components absorb the lightweight design concept, adopt the thin-wall hollow aluminum alloy profile design scheme, and combine the integral welding process to better consider the relationship between strength and stiffness. Rail transportation aluminum alloy will enter the lightweight blue ocean with rail transportation as the starting point. Aluminum profiles have outstanding advantages such as lightweight, high strength, and good corrosion resistance, making them very widely used in the field of rail transit. On average, each EMU needs to use 9 tons of aluminum alloy, each subway, light rail, and urban express rail needs 6.5 tons of aluminum alloy, and each team needs 4.5 tons of aluminum alloy. It is expected that during the "13th Five-Year Plan" period, China's rail transit construction will require 504,000 tons of high-end aluminum profiles. And thanks to the accumulation of technology in the field of rail transit, Chinese enterprises have matured their technology for automotive aluminum die-casting parts and are gradually making breakthroughs in the highest-end aluminum alloy structural parts in automobiles. Aluminum for body lightweight is a new blue ocean in the future domestic aluminum profile market. Rail transportation aluminum alloy has obvious advantages in weight compared with traditional carbon steel and stainless steel car bodies. The density of aluminum alloy material is only 1/3 of that of steel. Each car can reduce weight by about 1 ton, which can significantly reduce operating energy consumption. , Which can save 10,000 to 15,000 kilowatt-hours of electricity each year, thereby improving vehicle operation capabilities. In terms of corrosion resistance and corrosion resistance, the aluminum alloy material itself is an environmentally friendly and anticorrosive material and can be recycled. In its natural state, a dense oxide film can be formed on its surface, even if the corrosion protection on the car body surface is falling off or affected. In the damaged state, the corrosion resistance of the car body can also be guaranteed, and the service life of the car body can reach more than 30 years. In terms of air-tightness and appearance, the aluminum alloy car body is an integrally welded structure, and its air-tightness is better, and its appearance is more beautiful after the same surface painting treatment. Due to the outstanding advantages of Rail transportation aluminum alloy structure, the amount of rail transportation car body products at home and abroad is increasing year by year. Hefei Analu International Trading Co., Ltd. is mainly engaged in the welding and processing of high-speed rail, subway, and other large Rail transportation aluminum alloy parts. It has a number of internationally advanced modern automatic welding and CNC machining production lines, with an annual output of 3,000 car body modules Capacity. Among them, relying on the high-standard industrial profiles produced by Conklin Aluminum as raw materials, it has realized the extension of the aluminum alloy deep processing industry chain. It adopts the international rail vehicle welding standard EN 15085-2 CL1 and is a strategic cooperative enterprise of a famous rail vehicle transportation company.