The popular jewelry manufacturing procedure was already recognized for the use of gas welding in mid nineteenth century, but only a blend of hydrogen and oxygen was used in the process as, together, they formed a very intense and hot blaze. It was the invention of acetylene at the end of the same century that shaped gas weld what it is today.
Acetylene is a gas that is formed by the chemical grouping of water and calcium carbide; in gas welding, this amalgam may provide flames up to 4000 degrees Fahrenheit. Currently, it is pretty common to use a combination of acetylene and oxygen in gas weld to acquire a higher temperature of 6000 deg. F.
The advantages of gas welding include lower costs, mobility of LPG equipment transport and flexibility, compared to the use of electric set ups.
Moreover, there is no difference in terms of performance since any metal can be welded, cut or heated using a gas weld tool on oxygen and acetylene. If you choose gas weld, ensure that cylinders need to be kept in a vertical order, and that the caps of valve should be in right place when the cylinders are not in use.
The cylinders are associated between them and the torch with all sorts of hoses, available in various sizes; one prominent mention here is that all hoses used in gas welding need to be marked with the kind of repair level they are meant for: light, normal, or heavy.
When purchasing the LPG equipment, make sure that you know all the details for the rubber weld hoses. The user of Gas welding is exposed to the danger of combustion in the hoses and regulators; hence, daily valve tests are required in order to ward off flashbacks.
Some of the gas welding tools are specifically designed to curb flashbacks; which is acquired with the help of a flashback arrestor.
This device is identical to a check valve, but it also includes a trap that cuts of the gas flow when flashback occurs; hence, arrestors are a must-have type of LPG equipment that is important for those who use gas welding equipments.
Gas Welding Safety Tips
To lift up gas cylinders, use the LPG equipments that are designed to perform that task.
Check torches and clean only using suitable tools.
While welding use blowback guard torches.
Always keep a watch on the LPG equipment and fix any leakages at all connections.
Check hoses for worn and leaks spots.
Keep fire extinguishers at handy places, at the welding site.
Keep cylinders and hoses away from flames, sparks, to avoid any holes on it.
Use a flint lighter to fire the flame in welder.