February 27, 2021

The prospect of aluminum for rail transit is infinitely expanded

2 min read
Both subways and light rails can be built underground. As the use of aluminum alloys...

Both subways and light rails can be built underground. As the use of aluminum alloys becomes more and more widespread, and subway light rails have regulations on land conditions, environmental requirements, development strength, etc., medium-sized passenger compartments are used in rail transit. It can adapt to the peak hour passenger flow, and the fire and arc resistance of the subway car body is not only related to the melting point of the material, but also related to the thermal conductivity of the material. Compared with steel, aluminum alloy has excellent thermal conductivity, and its heat dissipation is also better than steel. Better, so Mingtai 5083 alloy is more suitable for subway light rail.

5083 aluminum alloy has strong corrosion resistance. A dense oxide film is easily formed on the surface of aluminum alloy. It has good resistance to oxygen in the atmosphere. Therefore, aluminum alloy has better corrosion resistance than steel car bodies. Especially the parts of the car body that are not easy to coat. At the same time, the aluminum alloy surface can be chemically colored, painted, and sprayed. Using these methods can further improve the corrosion resistance of aluminum structural parts. In addition to the high corrosion resistance of subway light rail materials , It also makes the weight of the vehicle further realized, and the energy consumption of the vehicle is reduced, the maintenance cost is reduced, and the aluminum profile can be 100% recycled, which can reduce energy consumption.

In summary, aluminum alloy has excellent fire resistance and arc resistance, its melting point is lower than that of steel, excellent heat dissipation and strong corrosion resistance, and also has excellent plasticity. With the development of aluminum alloy welding technology With continuous progress, the manufacturing technology of aluminum alloy vehicles is becoming more and more mature, and aluminum alloy parts are easy to replace, without rust removal, suitable for various surface treatments, can be recycled and reused, and save resources. Therefore, the use of Mingtai 5083 aluminum plate welding for subway light rail materials is more suitable.

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