Argon gas today is an inert gas material that is quite commonly used in many different industries, specifically in this article is the application of Argon in the protective gas welding industry.
What is Shielding Gas welding technology?
This is a welding technology that uses inert gas or semi-inert gas with the purpose of using inert gas to protect the weld from oxygen and steam. Depending on the material being welded, airborne gases can reduce the quality of the weld or make the welding process difficult.
Among the types of welding technology, shielded gas welding is used in gas metal arc welding (GMAW) also known as metal inert gas welding (MIG) and gas tungsten arc welding (GTAW) also known as welding. tungsten inert gas (TIG)
Why choose Argon gas in welding?
Although there are other types of shielding gases, Argon is the most commonly used inert gas in MIG/GMAW and TIG/GTAW welding technology. Because during the welding process, when metal is exposed to temperatures that often exceed 5,000 degrees F, Argon has non-toxic and non-flammable properties, so this inert gas can be used in environments with Such harsh conditions.
Effects of argon gas in protective gas welding technology
Pure argon is used to weld aluminum alloys and other non-ferrous metals, which can be welded on thick and thin metal sheets in the MIG/GMAW welding process, while for the TIG/GTAW process, pure argon Pure can be used in all situations, helping to protect some of the world’s most important equipment and machinery.
Types of Argon mixtures
Applied in welding technology, in addition to pure Argon, it can be combined with other gases in appropriate proportions to have perfect welds. Below are some types of gas mixtures used by welders during the shielding gas welding process
The most commonly used standard for GTAW is 99.996% pure argon, which is one of the most effective levels a welder can use.
Sometimes, welders will choose a mixture of 75% Ar and 25% carbon dioxide (CO2) for projects using GMAW welding technology. Since carbon dioxide (CO2) can cause oxidation around the tungsten electrode, mixing should be avoided for GTAW.
However, with GMAW welds, the combination of argon with carbon dioxide can help create a hotter weld pool, as well as deeper weld penetration.
Sometimes a mixture of 75% argon and 25% helium is used in both GMAW and GTAW welding technologies, but it is not common and is usually only used in industrial environments.