Gas welding is a process in which a fuel gas like acetylene, hydrogen, propane, etc. is mixed with oxygen in proper percentage to burn off to get a flame which, if detected adequately for melting a given alloy, could be useful for fusing and joining different components of it.
This process is extremely versatile because it might weld most of the commonly employed technologies metals and their alloys. A brief outline of these well-known versions in this class of welding procedures follows.
This may be the most famous gas welding process and was employed time in 1903 when a welding torch to get the purpose was developed.
Within this process acetylene (C2H2) is mixed with oxygen in the welding torch and it is then burnt at the torch tip to provide a fire with a temperature of about 3300oC which can melt the majority of the ferrous and non-ferrous metals in ordinary use.
Oxygen and acetylene are easily obtainable in cylinders at a temperature of roughly 1500 N/cm2 and 170 N/cm2 respectively.
All these are connected to the welding torch through hoses and are burned and mixed to acquire various types of flames viz., impartial, oxidizing and carburizing. Apart from this information, get more relevant details on ‘Argon welding machine’ (also known as ‘เครื่อง เชื่อม อาร์กอน‘ in the Thai language) from online sources.
The nature of this flame is dependent on the proportion of the two gases. The neutral flame is most frequently used for its welding of nearly all of the substances such as low carbon steels, cast iron, cast iron, etc.
The oxidizing flame has a higher ratio of oxygen than acetylene and is traditionally used for welding of both manganese steel, brass, and bronze whereas the carburizing fire has a higher proportion of acetylene in it and is used for welding aluminum, nickel, etc..
Oxyacetylene Pressure Welding
In ordinary or non-pressure oxy-acetylene welding process no utilization of pressure is made to reach a joint. Nevertheless, in a slight variant of the usual procedure, the values to be combined are heated by oxy-acetylene fire burner and attracted to the pasty or semi-solid state.
Axial pressure is then implemented to accomplish a joint that’s normally of an upset weld style. No combustion of these components being plotted is involved ergo it’s a solid-state welding process and is also referred to as as’Hot Pressure Welding’ or simply as’Gas Stress welding’.