Thermite welding is a technique used to weld rail tracks together at an extremely high temperature (almost 3000°C) using thermite, a mixture of iron oxide and aluminum powder. The residue of the thermite, which mainly consists of liquid iron, is mixed with the iron of the rail tracks at a high temperature through a mold attached to the rail tracks to be welded together.
Processes: SKS, SKV, SOW5
Arc welding is a welding method in which a butt joint is created using special electrodes with increased liquid slag and reduced slag volume.
Repairing rail tracks after wear, breakage, or impact damage has occurred, for example at slip sites.
Electrically isolated bonded welding. Two types can be distinguished: