The reliability of a railway or crane track does not depend on one element, but on the entire structure as a whole. Rails take the load from rolling stock or lifting equipment, sleepers and beams ensure a stable position of the rail threads, and fasteners fix them and preserve the geometry of the track. Therefore, during construction and repair, it is important to choose the right materials for the upper structure of the track, taking into account the operating conditions.
Rails P50 and P65: what is the difference
Rails of types P50 and P65 are widely used for railway tracks. The number in the designation indicates the approximate mass of one linear meter of the profile in kilograms. The P50 rails are used on tracks with appropriate design loads and traffic intensity. The more massive profile of the P65 is designed for increased loads and is widely used in areas with heavy cargo traffic.
The choice between these types cannot be made solely on the principle of "the harder, the better." It is necessary to take into account the axle load, load stress, speed of movement, the condition of the base, the radii of the curves and the requirements of the design documentation. If the profile does not match the actual operating conditions, it can lead to accelerated wear and additional repair costs.
Crane rails and industrial tracks
Crane tracks operate in a special mode: they are affected not only by vertical loads from the mass of the crane and cargo, but also by horizontal forces arising from the movement and braking of equipment. Special crane rails of the KR series are used for such structures, for example, KR70, KR80, KR100, KR120 and KR140. The specific profile is selected based on the design loads from the running wheels and the crane parameters.
Industrial enterprises also use non-public railway tracks, intra-factory lines and access branches. For each object, it is important to take into account the traffic intensity, the nature of the goods being transported, the climatic conditions and the features of the base.
Sleepers, transfer beam and rail fasteners
The rail structure will not be stable without properly selected supports. Wooden sleepers are used in various sections of the railway infrastructure, while reinforced concrete sleepers are characterized by high strength and stability of geometric parameters. A special transfer bar is used for the switches, the length and configuration of which depend on the project and type of transfer.
Rail fasteners are equally important. They may include linings, terminals, linings, bolts, nuts, washers, crutches, and travel screws. These parts ensure that the rails are connected to the supports, maintain the specified track width, and help to handle operational loads. When completing an object, you should