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VARIGON He50 is a two-component mixture containing 50% argon and 50% helium. The addition of helium to argon increases the supply of energy to the weld pool, making it more fluid. This, in turn, increases the penetration profile and weld fusion characteristics. Both of these features help reduce the likelihood of defects and the need to rework.
The addition of helium to argon also increases welding speeds relative to pure argon. Benefits include lower production costs and improved productivity.
Increasing the helium share to 50% produces a more fluid weld pool than VARIGON He30, making VARIGON He50 ideal for thicker components. It can be used for both MIG and TIG welding of non-ferrous materials such as aluminium alloys, copper alloys and titanium. The ideal operating range for MIG and TIG welding of non-ferrous materials is 3 to 10mm, although it can be used successfully outside this band. VARIGON He50 is suited to both manual and automatic welding equipment.
Benefits at a Glance
Improved fusion with deep, wide weld beads thanks to high energy transfer from helium
Reduced risk of sidewall fusion defects
Up to 20% speed gain compared with argon (6mm material)
Reduced preheating effort and distortion with copper and thick aluminium
Reduced weld prep effort, resulting in increased productivity and lower costs
Lower gaseous fumes for enhanced workshop environment.