GAS CUTTING
Oxygen metal cutting uses the phenomenon of intensive metal combustion in the oxygen-containing environment when the metal reaches the ignition temperature. The cutting tool is an oxygen beam under app. 1 MPa pressure. To start the cutting process, the metal must be heated to its ignition temperature in place when the cutting starts, and then the oxygen beam is generated that causes the metal combustion. The metal is heated with a blowpipe with a mixture of propane and oxygen. The metal is heated up to 1250C. Oxygen cutting may be used for cutting steel containing small amounts of carbon.