Rail grinding: the “healer” who repairs scars

Rail grinding:

the "healer" who repairs scars?

Rail grinding is particularly critical in the daily maintenance of subway trains. It is like a professional "healer" dedicated to repairing the wear and deformation of the rails caused by long-term use. Through special grinding equipment and processes, workers can finely remove the uneven parts of the rail surface to ensure that it returns to a smooth and straight running state. This link is crucial to ensure the safe operation of subway trains and the comfortable experience of passengers.

In order to reduce the wear on the rail surface and optimize the contact between the wheel and rail, a rail grinding vehicle is specially designed. In the operating room of the grinding vehicle, the staff carefully grinds the rails according to the specific needs of the track line, striving to make the rails reach the ideal contact state. This measure not only significantly improves the smoothness of the track, but also extends the service life of the track, thereby ensuring that the train can run safely, smoothly and smoothly.

The "guardian" of comprehensive maintenance-regular inspection of subway rails

In addition to the two key links of rail flaw detection and grinding, the maintenance of subway rails also covers regular comprehensive inspections. Every week, professional maintenance personnel will conduct a detailed inspection of the overall condition of the rails, focusing on observing the subtle changes on the rail surface and the tightness of the bolt fasteners. At the same time, they will also regularly use manual and static rail inspection vehicles to accurately measure the geometric dimensions of the rails, and promptly discover and deal with possible problems with excessive rail geometric dimensions. In addition, according to the changes and characteristics of the seasons, seasonal special inspections will be carried out on the rails to prevent the thermal expansion and contraction of the rails caused by temperature changes, thereby ensuring the continued stability of the line status.