Welding Technology Aspects; Material Shielding Gas; Gas-Flow In Timetwin Digital; Grounding (Earthing) Connection - Fronius TimeTwin Digital Operating Instructions Manual

Welding technology aspects

Material Shiel-
Material
ding gas
Unalloyed and low-alloy
steels
CrNi steels, high-alloy steels
Aluminium
Gas-flow in -
TimeTwin Digital -
-
If the "Digital Gas Control" option has been installed:
-
-
-
-
Grounding (eart- Use a separate earthing (grounding) cable for each power source:
hing) connection
Separate earthing (grounding) cables
Arrange the earthing (grounding) cables in a bifilar pattern - do NOT coil them:
Earthing cables arranged in a bifilar pattern
Set the gas flow rate for each wirefeeder separately
The gas flow rate must be the same on both wirefeeders
The total (i.e. combined) gas flow rate should be approx. 25 - 30 l/min
follow the guidelines in the "Digital Gas Control" instruction manual
use two separate pressure regulators
use two separate outgoing circuits from the ring circuit
stay within the minimum and maximum pressures allowed for the "Digital
Gas Control" option
Shielding gas
ArCO -, ArO - and ArCO
2 2
ArCO mixtures, active-gas component max.
2
2,5 %
ArO mixtures, active-gas component max. 3 %
2
Ar (99,9 %), ArHe mixtures
Shared earthing (grounding) cable, earth bridge
Earthing (grounding) cables coiled
O mixtures
2 2
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