In railway construction, maintenance and special engineering scenarios, people's demands for rail length and shape vary greatly, and rail cutting on demand has become a key service to meet diverse needs.
Rail cutting has a clear necessity. On the one hand, different railway projects have different requirements for rail length. The standard rail length is usually 12.5 meters or 25 meters. When special sections such as line curves, bridges, and tunnels have special requirements for rail length, precise cutting is required. For example, at small radius curves on mountain railways, in order to ensure that the rails fit the track direction, long rails need to be cut into appropriate lengths before laying. On the other hand, when existing lines are renovated or repaired, new rails need to be cut for replacement due to the different lengths of damaged parts.
Currently, the main methods of rail cutting are mechanical cutting and thermal cutting. Mechanical cutting often uses rail saws to cut rails with high-speed rotating saw blades. This method has high cutting accuracy, smooth cuts, and a small heat-affected zone. It will not significantly change the mechanical properties of the rails and is often used in scenarios with high cutting quality requirements. Thermal cutting uses flame cutting or plasma cutting, which uses high temperature to partially melt or vaporize the rails to achieve separation. It has high cutting efficiency and is suitable for cutting operations with relatively low precision requirements and large batches.
To ensure the quality of the rails after cutting, GNEE RAIL strictly controls the process of rail cutting. Before cutting, select appropriate cutting equipment and process parameters according to the material, specifications and customer requirements of the rails; when cutting, ensure that the verticality and flatness of the cutting surface meet the standards to avoid defects such as burrs and notches; after cutting, the cuts will be polished, and ultrasonic flaw detection and other detection methods will be used to ensure that there are no cracks or damage in the cutting area, which will not affect the safety and stability of the subsequent use of the rails, thereby meeting customer needs for rail quality and performance.