Surface treatment of steel rails in steel plants

Surface treatment can protect the surface of the rails from corrosion and oxidation.

1. Purpose and methods of surface treatment of rails

The surface treatment of rails is to eliminate the surface defects of rails and improve the appearance quality and service life of rails. At present, it is mainly divided into two methods: mechanical treatment and chemical treatment. Mechanical treatment mainly uses mechanical force to remove surface oxide layer and rust, especially for rails in coastal and humid climate areas. Chemical treatment uses chemical methods such as pickling and phosphating to remove surface rust and oxide layer, and form a protective film on the surface of the rails to prevent oxidation.

2. The importance of surface treatment of steel rails before leaving the factory

As an important part of the railway, the rail is one of the key components of railway transportation. Because the rails are exposed outdoors for a long time, the surface is susceptible to corrosion and oxidation, which affects its service life and the overall effect of container storage. In addition, the railway company requires that the railway and accessories must have high safety, that is, to ensure safety during railway transportation. Therefore, the rails produced by the steel plant need to be surface treated to ensure the safety, reliability and long-term effectiveness of the railway. Surface treatment can improve the wear resistance, corrosion resistance and heat resistance of the rail surface, while making the rail surface smoother and more beautiful, protecting the rail surface from corrosion and oxidation, and extending the service life of the rail.