Tig-Lift Arc Ignition Function - Paton StandardMIG-160 Instruction Manual

4.2 TIG-LIFT ARC STRIKING FUNCTION
This function is set by default on this model of the machine and is designed for holders with
contact arc ignition, without the use of oscillators or similar devices, but unlike the classic
method it completely eliminates the shock current at the moment of ignition. This feature
significantly reduces the destruction and penetration of the non-fusible tungsten electrode
into the weld seam, which is a very unfavourable phenomenon.
WARNING! For the function to work properly. The workpiece must be cleaned at the point
of arc ignition. The valve on the torch must be opened independently before welding
and closed after the process is complete.
The way to use this function is to touch the electrode to the piece. You can hold the
electrode in this position indefinitely, and when the user considers it ready to start welding
(for example, when the protective mask is on the eyes and the place is well purged with
safety gas), it is just necessary to start SLOWLY raising the tip of the sharpened electrode
from the piece. The machine will detect this moment and will take it as a signal to start the
welding process, thereby it will begin to increase the welding current to the set value. The
higher the main operating current, the faster you need to raise the electrode, otherwise it
will melt.
If you do not get it right away and, for example, the tungsten electrode sticks when you try
to raise it, you need to start all over again and at the next attempt to slightly increase the
rate of rising. If there was no attempt to ignite the electrode at all with a small flash, then it
is necessary to slightly decrease the lifting speed at the next approach. For error-free
ignition, you need some time to get used to it. We will consider the time of smooth current
rise [t.uP] up to the set value in the next paragraph.
Operating procedure:
- set the device's main power switch 14 on the rear panel to the "ON" position;
- use button 4 to set the TIG welding mode (functions are switched over and over);
- set the function of the TIG-LIFT torch button. To do this, hold down button 3 until
"Torch button" [But] appears on the indicator; the current position of this function
will also be displayed next to it. Use buttons 1 to set "LIFT". If you do not take any
action for a long time, the device will leave this function. You can return in the
same way, and if you have skipped the required button mode, press button 3 again
(functions are switched over and over);
- using the 2 buttons, the current main parameter, i.e. the welding current, can be
set;
If necessary, additional welding process functions can be set (see Section 6.1 for the switching sequence).
PATON StandardMIG DC MMA/TIG/MIG/MAG
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