Shielding Gas Supply; Gas Test; Setting The Shielding Gas Quantity - EWM Saturn drive 41 WE Operating Instructions Manual

Design and function

Shielding gas supply

5.4 Shielding gas supply
5.4.1

Gas test

• Slowly open the gas cylinder valve.
• Open the pressure regulator.
• Switch on the power source at the main switch.
• Initiate gas test function on the machine control.
• Set the relevant gas quantity for the application on the pressure regulator.
• Trigger gas test function at the machine control inside the machine (wire feed unit with M1.xx) or at the
operating panel (wire feed unit with M2.xx).
Shielding gas flows for around 25 seconds or until the button is pressed again.
5.4.2

Setting the shielding gas quantity

Welding process
MAG welding
MIG brazing
MIG welding (aluminium)
TIG
Helium-rich gas mixtures require a higher gas volume!
The table below can be used to correct the gas volume calculated where necessary:
Shielding gas
75% Ar/25% He
50% Ar/50% He
25% Ar/75% He
100% He
Incorrect shielding gas setting!
If the shielding gas setting is too low or too high, this can introduce air to the weld pool
and may cause pores to form.
• Adjust the shielding gas quantity to suit the welding task!
42
Recommended shielding gas quantity
Wire diameter x 11.5 = l/min
Wire diameter x 11.5 = l/min
Wire diameter x 13.5 = l/min (100 % argon)
Gas nozzle diameter in mm corresponds to l/min gas throughput
Factor
1.14
1.35
1.75
3.16
NOTE
099-005172-EW501
21.09.2011