Publicité
Les langues disponibles
Les langues disponibles
V1.0
ARC 170 DUAL VOLTAGE ARC/TIG WELDER
LIFT ARC IGNITION FOR TIG
(TUNGSTEN INERT GAS) WELDING
Lift Arc ignition allows the arc to be started easily in DC TIG by
simply touching the tungsten to the workpiece and lifting it up to
start the arc. When the machine detects that the tungsten has left
the surface and a spark is present, it immediately (within
microseconds) increases power, converting the spark to a full arc.
This prevents the tungsten tip sticking to the workpiece and
breaking the tip from the tungsten electrode. It is a simple, safe
lower cost alternative arc ignition process to HF (high frequency)
and a superior arc start process to scratch start. There is a
particular technique called 'rocking the cup' used in the Lift Arc
process that provides easy use of the Lift Arc function.
1.
Make sure the front end parts of the TIG torch are correctly
assembled, use the correct size and type of tungsten
electrode for the job, the tungsten electrode requires a
sharpened point for DC welding.
2.
Turn on the Gas Valve located on the TIG torch handle.
3.
Lay the outside edge of the Gas Cup on the workpiece with
the Tungsten Electrode 25/64 to 1/16 in. from the workpiece.
4. With a small movement
rotate the Gas Cup
forward so that the
Tungsten Electrode
touches the workpiece
(Fig. 17 and 18).
5.
Now rotate the gas
cup in the reverse
direction to lift the
tungsten electrode
from the workpiece
to create the arc (Fig.
19 and 20).
Visit www.princessauto.com for more information
Fig. 17
Fig. 19
8611295
Fig. 18
Fig. 20
31
Publicité
