Railroad thermite welding – How are rail lines joined?

Railroad thermite weldingRailroad thermite welding is one of the oldest welding processes that employ huge amount of heat, that is produced as a result to a highly exothermic reactions of metal oxides. The result of this action, furthermore, is a weld that is of extremely high quality and excellent mechanical properties. That’s why some still use this process when it comes to joining long railway tracks.

This can actually be done in two ways. The first choice says that the heat should melt the filler material to join the work parts. The seconds choice allows us to heat the parts that need to be welded to forging temperature and then, press with force to join them.

Railroad thermite welding – How are rail lines joined?

Railroad thermite weldingRailroad thermite welding as the term puts it, doesn’t need high temperature arc. The Railroad thermite welding uses the resultant heat of highly exothermic reaction. Usually, the reactants that we use in railroad thermite welding are metal oxides and metal itself. The process results are considering amount of molten sag and heat. In other words, molten iron is used to fill the rail line joints. The slag here just floats on it because it has less density.

Taking into consideration the chemical point of the process, you can’t help but wonder where can this be applied? Well, first and foremost there is the joining of rail lines. If you meant to ask where can you use the thermite welding elsewhere, then consider its quality.

The welds that are produced are of great mechanical strength. Moreover, it is of high purity level of metals. Alloying materials can also be included in thermite reactants; that is if you want to further enhance the quality.

Thermite welding can also be applied to making electrical conductive welds; for example copper. In addition, you can also fabricate a lot of other materials and alloys using this process. However, we can’t guarantee that the result will be satisfying. Check it out!