ESAB ET 220i AC/DC, Руководство по эксплуатации

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ET 220I AC/DC
BASIC WELDING GUIDE Manual 0-5346
4-14
FAULT CAUSE REMEDY
7 Dirty weld pool A Electrode contaminated
by contact with work
piece or filler rod
material.
A Clean the electrode by grinding off the
contaminates.
B Work piece surface has
foreign material on it.
B Clean surface.
C Gas contaminated with
air.
C Check gas lines for cuts and loose fitting
or change gas cylinder.
8 Poor weld finish Inadequate shielding
gas.
Increase gas flow or check gas line for
gas flow problems.
9 Arc start is not smooth. A Tungsten electrode
is too large for the
welding current.
A Select the right size tungsten electrode.
Refer to Table 4-3 ESAB Tungsten
Electrode Selection Chart.
B The wrong electrode
is being used for the
welding job.
B Select the right tungsten electrode
type. Refer to Table 4-5 ESAB Tungsten
Electrode Selection Chart.
C Gas flow rate is too
high.
C Select the right rate for the welding job.
Refer to Table 4-7.
D Incorrect shielding gas
is being used.
D Select the right shielding gas.
E Poor work clamp
connection to work
piece.
E Improve connection to work piece.
10 Arc flutters during TIG
welding.
Tungsten electrode
is too large for the
welding current.
Select the right size tungsten electrode.
Refer to Table 4-3 ESAB Tungsten
Electrode Selection Chart.
Table 4-7