Gas welding and gas cutting is the metal welding and cutting process that use of flame mixed combustible gases and combustion gases, commonly used combustible gases are mainly acetylene, liquefied petroleum gas and hydrogen, etc., commonly used combustion gas for oxygen.
Gas welding is the use of flame and metal solder joints of metal workpieces is heated to melt, has reached the purpose of welding. Gas cutting is to use the heat of the flame cutting the workpiece will be preheated, the use of jet cutting high-speed oxygen flow, the metal violently burning and release heat, in order to achieve the purpose of cutting. Gas welding is a molten metal, and gas cutting is burning the metal in pure oxygen.
Welding torch is the main equipment in gas welding, its structure is varied, but the basic principle of the same. A torch is a hand tool used to control the gas mixture, flow, and flame when welding. For the gas cutting, oxygen cylinders, acetylene bottles and pressure reducer is the same as gas welding. The difference is that gas cutting use
cutting torch.
