Different specifications of heavy rails have different usage scenarios. Among them, 75KG heavy rails are mainly used in the following scenarios:
Heavy-load railways
Coal transportation railways: coal transportation lines such as the Daqin Railway, a large amount of coal needs to be transported by heavy-load trains. 75KG heavy rails can withstand the huge weight and frequent impact of heavy-load trains, ensure the safe operation of the railway, reduce the wear and deformation of the rails, and reduce maintenance costs.
Ore transportation railways: For example, some railway lines for iron ore transportation, such as the Rio Tinto Railway in Australia, the trains transporting ore have a large load. With its high strength and good wear resistance, 75KG heavy rails can adapt to the requirements of such heavy-load transportation and ensure the stability and reliability of the railway.
Busy trunk railways
Passenger-freight mixed trunk lines: Many busy passenger-freight mixed trunk lines in China, such as the Beijing-Guangzhou Line and the Beijing-Shanghai Line, have to undertake a large number of passenger transportation tasks and take into account the operation of freight trains. 75KG heavy rails can withstand frequent train loads, ensure the smoothness of the line, provide passengers with a comfortable riding environment, and also meet the heavy load requirements of freight trains.
Freight Busy Trunk Lines: Some busy trunk lines mainly used for freight, such as some sections of the Longhai Line, have large freight transportation volumes and high train density. 75KG heavy rails can withstand long-term alternating loads, reduce fatigue damage to rails, extend the service life of rails, and ensure the efficiency and safety of railway transportation.
High-speed Railway
Some high-speed railway main lines: In some high-speed railway main lines with higher design speeds, although the requirements for rails are more stringent, 75KG heavy rails are also widely used due to their high strength and good smoothness. For example, some sections of China's Beijing-Shanghai High-speed Railway use 75KG heavy rails, which can meet the high requirements for rails during high-speed train operation and ensure the safe and smooth operation of trains.
High-speed Railway Turnout Area: The turnout area is a key part of the railway line. The operating conditions of trains in the turnout area are complex, and the strength, wear resistance and toughness of the rails are very high. 75KG heavy rails are often used in the turnout area of high-speed railways to withstand complex forces such as turning and braking of trains in the turnout area, ensuring the service life and safe operation of the turnout.
Internal railways of large industrial and mining enterprises
Internal railways of steel plants: A large amount of raw materials, semi-finished products and finished products need to be transported in steel plants, and the transport vehicles have a large load and high operation frequency. 75KG heavy rails can withstand the heavy load and frequent operation of the internal railways of steel plants, reduce the number of rail replacements, improve the transportation efficiency of railways, and ensure the smooth production process of steel plants.
Internal railways of mines: In mining, whether it is a metal mine or a non-metal mine, it is necessary to transport ores and other materials by rail. 75KG heavy rails can adapt to the harsh working environment of the internal railways of mines, withstand the long-term rolling of heavy-loaded mine cars, ensure the normal operation of mine railways, and provide strong support for mining and transportation of mines.