Why do we need anti-corrosion rails?
Rail corrosion protection is mainly to apply anti-corrosion coating on the surface of the rail, so as to ensure the isolation of the rail steel body and the external environment, and effectively prevent the external oxidation, rust, and corrosion of the steel.
Steel rails, especially heavy-duty rails and lifting rails, are mostly made of high-manganese steel. This steel has excellent wear resistance. Compared with ordinary steel, it can have a more stable and longer service life in wheel operation. However, in some special environments such as humidity, hydrochloric acid, and alkali, the rails are easily corroded by the external environment, especially the waist and bottom of the rails. Regular replacement of rails also results in a higher rate of downtime and adds substantial economic costs.
Therefore, the track working in this special environment needs rail corrosion protection. Coated rails came into being