Products Description
The dimensions of rails include rail head height, rail waist width, rail bottom width, rail waist height and track gauge. The specific dimensions vary according to different specifications and standards.
1. Definition of rail dimensions
Rail is one of the basic components of rail transportation. Its dimensions refer to the various dimensional parameters of rails used on the track. Common rail dimensions include rail head height, rail waist width, rail bottom width, rail waist height and track gauge.
2. Common rail materials
Rail is mainly divided into ordinary carbon structural rail, heat-resistant rail, elastic ballast rail, special rail, etc. Among them, ordinary carbon structural rail is the most widely used, heat-resistant rail is suitable for high temperature environment, and elastic ballast rail is used for special high-speed line.
3. International and domestic standards for rail specifications
Common international rail specifications include British standards, American standards, German standards, Japanese standards and other specifications, and their sizes are different. Common domestic standards include GB2585, YB/T5055, etc. Taking GB2585 as an example, the size parameters of ordinary carbon structural rails specified in it are as follows:
(1). Type 50 rail: rail head height is 108mm, rail waist width is 100mm, rail bottom width is 100mm, rail waist height is 53mm, and track gauge is 50mm.
(2). Type 60 rail: rail head height is 118mm, rail waist width is 114mm, rail bottom width is 114mm, rail waist height is 68mm, and track gauge is 60mm.
(3). Type 75 rail: rail head height is 140mm, rail waist width is 136mm, rail bottom width is 136mm, rail waist height is 76mm, and track gauge is 75mm.
In addition to the above specifications, there are other specifications of rails. In actual application, it is necessary to select appropriate specifications and sizes according to specific circumstances.
As the cornerstone of rail transportation, the selection and control of the external dimensions of rails are of vital importance to ensure the safety and stability of railway transportation. In actual applications, it is necessary to select appropriate rail materials and specification standards according to different application scenarios and requirements.
