Are you looking for the best welding gas equipment Greenwich has to offer? For the best choice in welding gas equipment, Greenwich customers need look no further than the experts at Senator Welding & Engineering Supplies Limited. They specialise in providing all types of welding and engineering supplies, including all the welding gas equipment Greenwich businesses need.
The main use of gas and the welding gas equipment Greenwich businesses need is to shield the weld joint. Arc welding of all types works in a simple process. An electric current is applied to the area to be welded, creating high heat in the local areas. A filler material is fed in, either from the welding gun itself, or as a separate wire or rod. This filler material melts to fuse with the two pieces of metal and make a welded joint. In simple terms, the two pieces of metal and the molten filler become one piece of metal. The weld joint quickly cools and hardens.
The problem is that molten metal is quick to react with oxygen in the air, creating a metal oxide. This is a little like the way that iron that is unshielded will rust in the open air to create iron oxide. The problem is that the oxygen in the weld can weaken the finished weld joint. This can lead to a joint that can crack under pressure, no to mention that the finished product will not look as neat.
This is the reason for the welding gas equipment Greenwich companies use. The inert gas is sprayed over the weld area. It forces the oxygen away from the molten surface. Since the gas itself is inert, it will not react with the weld area. By the time the gas has dispersed, the weld will have cooled and is safe from reaction with the oxygen.
The most common gas to use is argon. Argon is a great choice because it is relatively low cost, it is easy to use, and it is suitable for most types of welding that involve a shielding gas. This includes TIG and MIG welding. However, depending on the method and also the type of metal being welded, a combination which is primarily argon but includes a small proportion of other gases may be useful. For example, with MIG welding and TIG welding, some helium can also be added to the mixture. For MIG welding, a small amount of oxygen or carbon dioxide in the gas mix can improve the fluidity of the weld and stabilise the electrical arc, giving a better finished weld. Similarly, with TIG welding, sometimes nitrogen or hydrogen can be added in small quantities to improve the finished job.
The good news is that at Senator Welding & Engineering Supplies Limited, we can help with choosing the best type of gas and welding gas equipment Greenwich customers need. Why not visit our shop? Alternatively, for all enquiries about the best welding gas equipment Greenwich gas to offer, contact us using the details on the website.