How to install fish plate in railway

Rail joint, also known as the fish plate in railway, is a common accessory on railway tracks. As a major railway country, China uses different types of rails and different models. Therefore, for the fixed parts such as road splints, the specifications are also different. Fishplate is a common fastener on rails. In addition to testing the quality of the fishplate, it should also be installed to prevent improper installation and affect its normal use. Let’s follow the splint manufacturer to see how to install the fish plate on the railway.

fish plate in railway

1. When screwing on the bolt, pay attention to make the opening of the spring washer downward;
2. The order of the bolts, such as using a four-hole fish plate, first tighten the middle two, then the two sides, after tightening the two sides, and then tighten the middle once;
3. When screwing the bolts, one person shall use a 55cm screw wrench as the criterion, and a too long screw wrench or two people shall not be used for screwing;
4. When the bolts cannot be worn, use a hammer to hit both ends of the fishplate, align the eyes, and do not drive the screws in with a hammer;
5. The contact part between the fish plate and the rail and the bolts should be oiled;
6. When threading the fishplate bolts, the positions of the bolt caps must be staggered from inside and outside.

Through the above understanding, we also know more about the installation method of the fish plate in the railway and have a deeper understanding of the fish plate. After all, the fish plate is an accessory used on the rails.
According to the material, there are: Q235: Chemical composition (melting analysis) of plywood steel is less than or equal to 15kg/m and greater than 15kg/m by model
It should meet the requirements of Q235-A (or No. 3 B steel) and Q255-A (or No. 4 B steel) steel in GB 700 respectively.

Ductile iron: QT400-18 is placed in the field with the rails all year round. If the maintenance work of the fishplate is not done well, it will be damaged by the extrusion and friction of the train and the rail for a long time. . Therefore, the maintenance personnel should regularly repair the rails, and if the fish plate is found to be faulty, it should be replaced in time.

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