Arc Ignition - LORCH MicorStick Operation Manual

14.2 Electrode welding process
Switch on the system
 If necessary, switch the system on by pressing button
17 for 2 sec.
 Keep pressing button 16 until the electrode operating
function is selected.
9 The electrode icon MMA or CEL (LED 13 or 14) lights
up.
 Use control knob 12 to set the desired welding current.

Arc ignition

 Briefly touch the workpiece at the point to be welded
using the electrode and lift the electrode a little.
9 The arc burns between the workpiece and the elec-
trode.
Hotstart
‰ In the electrode welding method, a hotstart of 125 %
of the set welding current is used for 1 second for igni-
tion. Like the welding current, the hotstart is limited to
a maximum of 150 A.
Guide values for current intensity
Electrode Ø
[mm]
1.5
2.0
2.5
3.2
4.0
14.3 TIG welding process
Switch on the system
 If necessary, switch the system on by pressing button
17 for 2 sec.
 Keep pressing button 16 until the TIG operating func-
tion is selected.
9 The TIG icon (LED 15) lights up.
 Use control knob 12 to set the desired welding current.
VIII
Arc ignition
 Open the valve 56 on the TIG welding torch.
- 24 -
Recommended current
intensity [A]
20...40
35...60
45...100
75...140
130...190
  Briefly touch the workpiece with the tip of the elec-
trode at the point to be welded.
  Lift the electrode a little.
9 The arc burns between the workpiece and the elec-
trode.
Upslope
‰ A short-circuit current of 60 A is used for igniting during
the TIG welding process. The upslope takes place with
115 A/s until the set welding current is reached.
Guideline values for the current intensity
and the gas quantity
Tungsten elec-
trodes Ø [mm]
1.0
1.6
2.4
909.2049.9-00
Commissioning
Current inten- Gas quantity
sity [A]
15...80 4
70...150 5...6
150...250 6...7
[l/min]
01.14