Paton MultiPRO Series, Техническое описание и руководство по эксплуатации

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PATON MultiPRO series DC MMA/TIG/MIG/MAG
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4.1.2 TIG‐LIFT ARC STRIKING FUNCTION
This function is designed for torches with contact arc striking, without use of
high‐frequency injection units and other similar units. However, unlike the
conventional method, it completely eliminates surge current at the moment of
striking, thus reducing the several‐fold destruction of the non‐consumable
tungsten electrodes and ingress of its inclusions into the weld, which is very
adverse effect.
Attention! The valve on the torch should be opened independently before
welding and closed after the process is completed.
This function is implemented by touching the work piece with the electrode.
The user can keep the electrode in this position for an unlimited time, and when
he/she decides that he/she is ready to proceed with welding (for example: he/she
has covered the eyes with a headshield and sufficiently purged the place of welding
with shielding gas), it is enough to start SLOWLY lifting the tip of the sharpened
electrode from the work piece. The machine will detect this moment and take it as
a signal to start the welding process. Thus, it will start FADING arc current up to the
set value. The higher is base operating current, the faster the electrode shall be
lifted, and otherwise it will flash off. Time of current fade‐in [t.uP] up to the set
value will be reviewed in the next Clause.
4.2.1 WELDING CYCLE – TIG-2T
See Clause 6.1 for sequence of changing the value of any function.
t, s
t, s