Welding Process - LORCH MicorStick 180 ControlPro Bedienungshandbuch

 Set the desired pulse duty cycle by us-
ing control knob 14. The setting value
specifies share in % of the main current I
Example: 60% corresponds to a mix of 60%
main current I and 40% secondary energy I
1
 Leave the secondary parameter menu.
‰ The calculated average current value is shown
on Display 22 during the welding process.
15.2 TIG
Before switch-on, ensure that the elec-
trode is not touching the welding table,
the workpiece or another electrically-
conductive object, to ensure that you
do not unintentionally ignite arcing on
switch-on. An unintentionally ignited
arc can damage the electrode holder,
the welding table, the workpiece and
the machine.
Switch on the system
 If necessary, switch the system on by pressing
button 20 for 2 sec.
 Keep pressing button 19 until the TIG welding
process is selected.
9 The TIG icon (LED 17) lights up.
 Use the rotary knob 14 to set the desired weld-
ing current.
VIII
Arc ignition
 Open the valve 56 on the TIG welding torch.
 Briefly touch the workpiece with the tip of
Â
the electrode at the point to be welded.
 Lift the electrode a little.
Â
9 The arc burns between the workpiece and the
electrode.
Guideline values for the current intensity
and the gas quantity
Tungsten elec- Current intensity
trodes Ø [mm]
1.0
1.6
2.4
- 32 -
Gas quantity
[A] [l/min]
15...80 4
70...150 5...6
150...250 6...7
Pulses
Pulsing can be set separately for each process.
.
 Call up the secondary parameters (see "16 Sec-
1
ondary parameters" on Page 33).
.
2
 Select the menu item Pulse Option (code "Pu0")
and set this to "on".
‰ The Pulsing LED 18 lights up.
 Select the "Secondary energy" secondary pa-
rameter (code "2.E").
 Set the desired secondary current value by us-
ing control knob 14. The setting value is based
on % of the main current I1.
 Select the "Pulse frequency" secondary param-
eter (code "PuF").
 Set the desired pulse frequency by using con-
trol knob 14.
 Select the "Pulse cycle duty" secondary param-
eter (code "PuB").
 Set the desired pulse duty cycle by us-
ing control knob 14. The setting value
specifies share in % of the main current I
Example: 60% corresponds to a mix of 60%
main current I
 Leave the secondary parameter menu.
‰ The calculated average current value is shown
on Display 22 during the welding process.
909.4119.9-02

Welding process

and 40% secondary energy I
1
.
1
.
2
07.19