Oxygen Lance Cutting:

This method might be used for baring or cutting holes in brick, concrete granite etc. by means of heat produced by chemical reactions.

Oxygen lance cutting (LOC) is an oxygen cutting procedure that uses oxygen supplied through a consumable steel pipe or lance (This is a long length of ordinary steel tubing or pipe). Preheat needed to start the cutting is attained by other means.

The lance consists of a tube that is about 3 m long and 6.5 - 9.5 mm diameter and is packed along steel wires. One end of the tube is threaded or snap associated and is associated by means of a flexible hose to an oxygen supply to operate the lance. The free end is heated utilizing oxyfuel gas cutting or welding torch to cherry red and oxygen is passed down the tube. While the burning end of the lance is brought close to the workpiece, the heat of the flame melts the work. Quick oxidation of the wires starts at the heated end with great evolution of heat giving increase to self sustained exothermic reactions. The end of the pipe burns constantly and new length is added to the lance. Heat output after this the heating is eliminated is often increased by adding aluminium and magnesium.