Comparc ALPHA TIG 252 - DP, Руководство пользователя

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8-2 PREPARING TUNGSTEN.
1.- Tungsten electrode.
2.- Balled end
Ball end of tungsten before welding
by applying either an AC amperage slightly
higher than what is recomended for a given
electrode diameter(see table 6-1) or a DC
alectrode positive amperage.
WARNING
FLYING SPARKS AND HOT METAL can cause injury and start fires.
1 1/2 TIM ES
ELECTRODE
DIAM ETER
1
2
4
1
2
3
WRONG PREPARATION OF THE
TUNGSTEN - WANDERING ARC
1.- Arc wander.
2.- Point
3.- Grinding wheel.
4.- Radial Ground..
1.- Stable arc .
2.- Flat .
Diameter of this flat determens amperage
c apac it y.
3.- Grinding wheel.
4.- straight Ground..
4
1
2
3
IDEAL PREPARATION OF THE
TUNGSTEN - STABLE ARC
1
2 1/2 TIM ES ELECTRODE
DIAM ETER
2
1.- Tungsten electrode.
2.- Tapered end.
Grind end of tungsten on thefine grit hard
abrasive wheel before welding. Do not
use wheel for other jobs or tungsten can
become contaminated caus ing lower weld
quality.
Figure 8-1 Preparing tungsten f or AC or DC electrode positiv e ( DCEP ) W elding.
Figure 8-2 Preparing tungsten for DC electrode negativ e ( DCEN ) W elding.