Train rails are joined together via a seriously awesome process called exothermic welding ... The thermite melts, yielding hot iron and alumina, which melt a plug in the bottom of the crucible ...

In the video, one can see how [Finn] uses thermite charges to weld massive copper conductors together in a matter of seconds inside a graphite mold. Straight joints, T-joints, and others are a ...

Discover the crucial role of thermite welding in joining the tracks, a technique that uses molten metal to create strong, durable bonds. Learn why aluminum is chosen for this process, offering ...