Railroad thermite welding is a common method in railway construction. As we know, there is an interface at the rail joint between two steel rails. There is an issue in the railway industry. When the train passes away, the enormous pressure will cause shake even crack. These problems will threaten the service life of the steel rails and the safety of trains. So how to solve the interface is an important project for the rail technology.
With the development of the manufacturing industry, there are two main methods to weld the railroad tracks. The one is electric soldering, and another one way is thermite welding. What is thermite welding? The railroad thermite welding is regarded as the most high-efficiency method to weld railroad tracks. Because of the high efficiency, reliable quality and high adaptability, the railroad thermite welding becomes the most popular way in railroad construction. The application of thermite welding is widespread. In the railroad construction, it is used to weld railroad tracks. The seamless rail can be made by the thermite welding technology.
The working principle is easy to understand. After setting the thermite welding machine, we preheat the steel rails to 600 degrees. Then put the welding portion into the crucible and light the welding portion. The welding portion will produce molten steel and slag. The high-temperature molten steel will fuse the interface between two steel rails.
The thermite welding is easy to operate. AGICO Rail provides the thermite welding kits like welding portion, sand mould, ignitor and others separate parts of the railroad thermite welding. How to weld the railroad tracks? What is the thermite welding procedure? AGICO Rail lists a simple guide for you.
The railroad thermite welding procedure has 13 steps. We can divide into three parts. The first part is the preparation, the second part is operation and the third part is the inspection. First, we will introduce the preparation work.
The distance between the rails ends should be 23mm~27mm. the horizontal alignment means to keep the center line of each railroad tracks in alignment. The vertical alignment means that the distance between the railway sleepers should be 1.5mm. (The wooden sleeper distance should be 3.2mm.) The torsion means that keep the railhead and rail end in alignment.
After all the things have been prepared, we begin to weld the railroad track.
After all, workers should clean the welding site and do a mark on the weld.
So far, we have introduced the railroad thermite welding method. If you are interested in this railroad technology, you can contact us to learn more details. AGICO Rail supplies the thermite welding kit for you. What’s more, as a railway components manufacturer, we supply various standard steel rails and railway fasteners like rail tie plate and rail joint. Besides, we provide the professional service if you have needs!