How to adjust the fire by gas cutting?

1, open the acetylene gas handwheel valve, slightly open the oxygen handwheel, and ignite.

2. Turn to the neutral flame, preheat the steel plate, and start cutting oxygen as soon as it begins to melt.

3. Pay attention to determine the size of preheating flame according to the thickness of steel plate.

4. Determine the pressure of using oxygen according to the thickness of the steel plate.

Gas/oxyacetylene cutting

Gas cutting (pinyin: qi ē g ē; English: Gas cutting refers to cutting metal (such as steel plate, carbon steel, alloy steel, steel bar or copper ingot) with heat energy generated by oxygen-acetylene (or other combustible gases, such as propane and natural gas) flame. The combustible gases used in gas cutting are mainly acetylene, liquefied petroleum gas and hydrogen. The mixing of combustible gas and oxygen and the injection of cutting oxygen are completed by the cutting torch, which has one more oxygen conduit than the welding torch. Gas cutting is a common method of metal thermal cutting in various industrial departments, especially manual gas cutting is flexible and convenient to use, and it is an indispensable process method for sporadic blanking, waste disintegration, installation and disassembly in factories.

Basic information

Chinese name: gas cutting

Nature: terminology

Principle: Combustion process of iron in pure oxygen.

Gases used: acetylene, liquefied petroleum gas and hydrogen.