Plasma Welding; Welding Task Selection; Setting Welding Procedure; Pilot Arc - EWM Microplasma 25-2 PG RC Operating Instructions Manual

Design and function

Plasma welding

5.2 Plasma welding
5.2.1

Welding task selection

The basic prerequisite for starting the plasma process is a connected and functioning cooling
circuit for cooling of the welding torch.
5.2.1.1

Setting welding procedure

5.2.2

Pilot arc

Ignite pilot arc
Switching off the pilot arc
The pilot arc must be switched off and the gas post flow time (plasma gas) waited for before
switching off the welding machine. If the welding machine is switched off prematurely the tung-
sten electrode loses its jacket of shielding gas and will consequently oxidise.
• Switch off the pilot arc before switching off the welding machine!
• Wait until the welding torch has cooled down.
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Figure 5-12
Figure 5-13
Figure 5-14
099-007033-EW501
4.1.2022