Choosing the right shielding gas can optimize your welding results, but also affect the strength, corrosion resistance, and weld strength. Shielding gases are Argon 4.6, Armix 18, and Armix 8.
Argon 4.6 – Argon 4.6 is a standard shielding gas for MIG and TIG welding and is suitable for steel and non-ferrous materials (alloys of aluminum, copper, titanium …).
In it’s pure form, argon is used as a shielding gas for MIG and TIG welding. Additional components are added for other welding processes. As a noble gas, it is absolutely without reactions (inert) and does not enter into chemical reactions with the base or additional metal. Protects reactive molten metal from chemical interaction with oxygen and nitrogen. Argon is also used to shape all materials and for plasma cutting.
– Easy to use;
– The most popular shielding gas;
– Easier arc ignition due to low ionization energy;
– Very good availability;
– Argon is heavier than air and therefore covers the solution well when welding in normal positions…
Armix 18 – Two-component mixture of Ar: 82% and CO2: 18%. Serves as a shielding gas for MAG welding of carbon and steel alloys in thicknesses from 5 to 12mm. This mixture produces lime with good penetration and lateral fusion, especially when it comes to thicker materials. This reduces the
number of seam defects, cutting off discarded components. The high level of CO2 helps prevent surface contamination with oil, moisture or rust, which reduces pre-digestion cleaning and overall production costs.
Field of work:
– MAG welding of non-alloy steels;
– Armix 18 offers safe penetration in all welding positions;
– Less spraying compared to pure CO2;
– Can be used for all types of ports…
Armix 8 – Two-component mixture of Ar: 90% and CO2 10%.
Shielding gas for MAG welding of carbon and steel alloys. The amounts of droplets and waste produced by Armix 8 are small, making it ideal for applications where cleaning after welding must be kept to a minimum. It saves time and thus costs. Low surface oxidation also makes it suitable for applications that require post-welding painting.
Armix 8 can be used manually or via robotic or automatic equipment and is most suitable for materials between 1 and 8 mm thick, although it can be used successfully outside this range.
The usage value of this gas is reflected in several facts:
– Reduced cleaning after welding with a minimum amount of waste on the weld surface;
– Low surface oxidation for improved staining ability and reduced cleaning time;
– Improved environment in the workshop with lower levels of smoke particles…