Rigid rail is an important part of the railway turnout, and is one of the many railway accessories, and in the use of rail, the need for welding treatment. When welding rail, there are different welding methods, such as arc welding, pneumatic welding, flash welding and thermite welding. These several rail welding methods have their own characteristics, in order to increase your doubts, master more relevant information, rail plate manufacturers will be for this problem to summarize and explain.
1. Arc welding methods include forced forming arc welding, automatic narrow gap active gas welding, etc. The static bending, drop weight, fatigue and mechanical properties of rail arc welded joints are higher than those of thermite welded joints, and close to those of flash welding and pneumatic welding joints.
2, air pressure welding, welding area without casting organization, joint temperature gradient is small, crack sensitivity is very small, do not need high power power points, mainly used for joint welding site.
3. Flash welding is widely used. According to different welding processes, rail flash welding can be divided into intermittent preheating flash welding and continuous flash welding, which is more energy saving, process stability and joint reliability than intermittent flash welding.
4, thermite welding does not need power, simple equipment, fast welding speed, low processing cost is especially suitable for field work.
The above is for the characteristics of rail welding method, I hope you can rely on this information, increase the rail welding, the characteristics of each welding method. Of course, if you are interested in other kinds of railway parts, want to buy railway parts, or want to master more information about railway parts, you can contact the track plate company, our company will try to meet your needs.
