VARIGON He30 is a two-component mixture containing 70% argon and 30% 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 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.
VARIGON He30 is suited to MIG and TIG welding of non-ferrous materials such as aluminium alloys, copper alloys and titanium. It can also be used for TIG welding of carbon and stainless steels. The ideal operating range for MIG and TIG welding of non-ferrous materials is up to 6mm, although good results can also be obtained outside this band. In the case of carbon and stainless steels, the recommended TIG range is 1.6 to 10mm and up to 10mm respectively.
Benefits at a Glance
Reduced porosity, resulting in improved quality, less rework effort and better mechanical properties
Good gap bridging for easier welding and reduced reject rates
Lower reinforcement levels with less stress on weld area, reduced wire usage and improved productivity
Improved (sidewall) fusion for stronger mechanical properties.