The main function of rail fish plates is to connect and clamp the two rails to resist the shear force of the joints and prevent the rail head from being misaligned. The rail joint itself has a weak structure, and the train passes through the joint with a lot of impact. Therefore, the rail fish plates must be closely attached to the rail and have sufficient strength. Therefore, they must be made of steel with good rigidity and toughness. If necessary, heat treatment is required to increase rail fish. The allowable stress of the plates improves the hardness and abrasion resistance of the supporting surface. The upper and lower sides of the rail fish plates have slopes, which are consistent with the slopes of the rail bottom and rail head. When the rail fish plates bolts are tightened, they cannot contact the rail waist. In this way, the rail fish plates are slightly worn, and the bolts can be re-tightened to maintain the firmness of the joint connection.
Kingrail Parts is a professional manufacturer of railway fasteners. If you have any other questions about rail fish plates, you can follow our official website: http://www.kirail.com/