Heavy rail, or heavy-duty rail, is different from light rail. It is a track for heavy vehicles. It represents not the weight of the monorail track itself, but it is related.
Vehicle weight is divided into light rail and heavy rail. Track width is divided into wide rail, standard rail, narrow rail, heavy rail applications are mainly national standard cross-area railroads (including high-speed railroads, heavy railroads) , intercity railroads, urban areas. Rail weight Steel rail specifications are expressed in net kilograms per meter of length. Steel rail per meter nominal weight of more than 60 kg belongs to heavy rail, heavy rail is divided into two kinds of ordinary rail and crane rail.
Ordinary rail is the laying of railroad main line, special line, corner and tunnel rail. Among them, the standard rail length of 25 meters and 50 meters or 500 meters high speed rail continuous welding, laying curve curve rail, slightly shorter length, 24.96 meters, 50.92 meters, etc., high speed rail length is generally 500 meters, general rail specifications are 60, 75, 100 (kg /m).
The cross-sectional shape of the rail is composed of I-beam parts with bending resistance, consisting of rail head, rail waist and rail bottom. In order to make the rail better to withstand various forces and ensure the necessary strength conditions, the rail should be high enough, the head and bottom should have sufficient area and height, the waist and bottom can not be too thin.
The role of the heavy rail is to directly bear the weight of the train and the load transferred by the wheels, and to guide the direction of the train's operation. Such a huge pressure falls on the shoulders of the rails first. It can be seen that the rails must have sufficient strength, stability and wear resistance. The I-beam section of steel rails consists of a rail head, rail waist and rail bottom. This seemingly simple I-beam has good strength, saves material and has the best bending resistance.
In theory, the longer the length of the rail, the better, so as to reduce the impact and wear of the joint, but also to reduce the labor intensity of laying. However, due to the production and transportation constraints, China's current standard rail length is only 12.5m and 25m. However, railroad employees in the construction site will be the standard length of rail welding to the long rail and "seamless" rail method, in order to reduce the seam, so that the line more smoothly.
Many rails are rusting. In fact, this is a characteristic of the railroad itself. When it leaves the factory, it is already rusted. The friction of trains running on it causes the surface of the worn rails to become shiny. The rails of high speed rail, trains and most trains are made of high manganese steel. High manganese steel has high hardness and wear resistance. Even if it is replaced by rust and wear, it is still a good material for other industries. The replaced rails can be made into guardrails, fasteners, etc.
The above is the information of heavy rail introduced by YONGYANG, the steel suspension rail manufacturer, hope it will be helpful to you. If you are interested in rails, you can contact us. We are the largest rail manufacturer and supplier in China, our main products are light rail, heavy rail, lifting rail, angle steel, industrial and mining I-beam, U-arch steel, high strength hot rolled flat steel for automobile, rail fasteners, etc. These products are widely used in railroads, ports, mining industry. Industry and tunnel industry.
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