Rail joints are the weak link of the track and are prone to diseases due to train load impact. Doing a good job in daily inspection and maintenance is an important measure to ensure the safe operation of the railway.
Inspection work needs to pay attention to details and comprehensiveness. First, check the geometric state of the rail joint, use the track gauge to measure whether the track gauge is within the standard range (the allowable error is generally + 6mm, -2mm), and use the track gauge to check whether the height difference of the rail surface and the track direction are smooth. If abnormalities are found, further analyze the reasons and make timely adjustments. Secondly, pay attention to the connecting parts of the rail joint, carefully check whether the bolts are missing or loose, whether the spring clip fasteners are damaged or displaced, tighten the loose bolts in time, replace the failed fasteners, and ensure a firm connection. In addition, check the surface of the rail at the rail joint to observe whether there is wear, block loss, cracks, etc. Once found, it is necessary to record in detail and evaluate the degree of harm.
Maintenance work should be done to prevent problems before they happen. Regularly tamp the rail joints to improve the density of the ballast bed, enhance the bearing capacity of the joints, and reduce vibration and impact when the train passes. For the uneven surface of the rail joints, use a rail grinder to grind them to eliminate the fat edge and saddle wear of the rail surface, improve the wheel-rail contact state, and reduce the wheel-rail force. At the same time, do a good job of rust and corrosion prevention of the rail joints, apply anti-rust paint to the exposed rail surface to prevent the joint from reducing strength due to rust. In addition, clean up the debris in the ballast bed at the joint in time to avoid the impact of dirty and hardened ballast bed on the elasticity and stability of the track. Through standardized inspection and scientific maintenance, the service life and safety of rail joints can be effectively improved.
As a professional supplier in the field of international steel trade, GNEE RAIL has long been committed to the global sales and service of GB standard rails. We can provide customers with a full range of railway rail products, from ordinary line rails to high-strength wear-resistant rails, with complete product specifications to meet the needs of railway construction of different levels.