Industry knowledge
The steel rail is the core part of the railway track structure and is the direct load-bearing component of the train. It is responsible for transferring the train wheel load to the sleepers and the roadbed, and ensuring that the train runs smoothly and safely on the track. From a structural point of view, the standard rail is mainly composed of three parts: the rail head, the rail waist and the rail bottom, forming a typical "I"-shaped section. This design not only gives the rail good bending strength, but also effectively disperses the vertical load and impact force generated by the train.
Steel rails are usually made of high-quality carbon steel or low-alloy steel, and must have high strength, high hardness, good wear resistance and fatigue resistance. Its material and performance determine the smoothness and safety of train operation and the life of the track system.
Common types of rails include light rails, heavy rails, crane rails, etc., which vary according to the purpose of the track, the speed of the train and the load level.
The technical standards for steel rails in various countries around the world are slightly different, such as the Chinese standard (GB), the European UIC standard, the American AREMA standard, etc. Customers should choose the corresponding specifications according to the usage scenario when purchasing. There are also many standards for the length of rails, the most common being 12 meters and 18 meters. Long rails can also be formed by welding to reduce the number of joints and reduce the frequency of maintenance.
As a key material for rail transit infrastructure, the quality of rails is directly related to the overall stability of railway projects. Understanding the basic structure and technical requirements of rails will help customers formulate procurement plans more scientifically and improve project implementation efficiency.
