Gas cutting of metal

Gas cutting of metal remains very popular because it is universal in use, does not require strict space requirements or electrical connections, and gas cutters are easily transported and quite mobile. Gas cutting of metal It is carried out directly by oxygen, and acetylene or propane serves as a heater. Since oxygen cuts the heated metal surface, it must be heated to 1000 - 1200⁰Oxygen is introduced into the metal and then ignites upon contact with the surface. A continuous oxygen supply is essential for a smooth cut.

Gas cutting of metal Oxygen cutting can also be performed using a combination of propane and acetylene, but this method is used for cutting high-strength metals. Oxygen cutting is often performed with the P1-01P torch, which is well suited for working with hardened steel and cast iron. Oxygen is supplied under very high pressure, 12 atmospheres.

Gas cutting of metal effectively cuts metals with a melting point of at least 600⁰ C, otherwise, the top layer of metal will simply be removed, not cut. Gas consumption depends on the temperature of the heated metal, and on average, 10 m3 is consumed per hour of operation.³. oxygen, as well as 0.7m³. acetylene. Using the P2-01 cutting torch results in significantly higher consumption.

For gas cutting of metal Industrial oxygen of 98.8–99.7% purity is used. The lower the oxygen percentage, the higher the consumption per meter of cutting length and the longer the cutting time. The thermal conductivity of the metal must be low, as this significantly affects the metal cutting process. The steel composition also influences the cutting process; a low carbon content improves this process. The ignition temperature is particularly affected by the metal surface condition, the material size, and the oxygen flow rate.