Shielding Gas Supply (Shielding Gas Cylinder For Welding Machine); Gas Test - Setting The Shielding Gas Volume - EWM Pico 350 cel puls pws Operating Instructions Manual

Design and function
MIG/MAG welding
5.3.2

Shielding gas supply (shielding gas cylinder for welding machine)

• Place the shielding gas cylinder into the relevant cylinder bracket.
• Secure the shielding gas cylinder using a securing chain.
Item Symbol
1
2
3
4
• Tighten the pressure regulator screw connection on the gas bottle valve to be gas-tight.
• Screw the gas hose connection nipple (intermediate hose package) onto the output side of the pres-
sure regulator.
5.3.2.1 Gas test – setting the shielding gas volume
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!
Welding process
MAG welding
MIG brazing
MIG welding (aluminium)
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
32
Description 0
Pressure regulator
Shielding gas cylinder
Output side of the pressure regulator
Cylinder valve
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)
Figure 5-23
Factor
1.14
1.35
1.75
3.16
099-002061-EW501
05.05.2020