Oxyacetylene is also known as gas welding. The technique used is to mix two gas components namely oxygen and acetylene in an equal ratio and with the help of hand-held torch or a gas blow pipe a humid flame is produced with the temperature being around 3,200 degree Celsius. To adjust the excessive outflow of oxyacetylene flames change the volume of mixing ratio of two gases from oxygen to acetylene. The settings that are used for adjusting flame are neutral, oxidizing and carburizing.
As the ratio of mixing the gas is equal welding are generally done in neutral flame setting. In the second type of setting the outflow of oxidizing flame is obtained by increasing the flow rate of oxygen. And in the third setting carburizing flame is obtained by increasing the flow rate of acetylene.
As the amount of heat generated in Oxyacetylene welding process is high, it is best suited to weld the steel. The other gas components such as propane, hydrogen and coal gas are been used to join the lower melting points of non-ferrous metals and it can also be used for brazing and silver soldering. In this welding technique as the gas components are stored in steel cylinders at a specific pressure the equipments are friendly to handle and easy to use.
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