Polysoude PS 406-2 - TS;TP Welding Heads for Welding of Tubes to Tubesheet

PN-0908073 Rev. 11 79-92
PS 164-2
THE ART OF WELDING
7. 1. 3. TS/TP welding heads for welding of
tubes to tubesheet
Tube to tubesheet welds may have two geometrical
shapes : fl ushing or protruding tubes. For welds of
fl ushing tubes, one pass is required. For welds of
protruding tubes, make two passes (one with wire
and one without wire).
In this case a welding bevel is needed on the workpiece
(angle = 45 °, height: 1.5 mm). For leak resistant
welds of protruding tubes, make one pass (without a
bevel) and then a second pass corresponding to the
tube to be welded.
Tubes to be wel-
ded
Set-up before welding Range
Linear
speed
Material
Ø OD
Wall thickness
Tube protruding/
fl ushing
Angle of torch
Distance élec-
trode/plaque
Distance elec-
trode/work piece
Distance
electrode/wire
Ø Electrode
Tip angle
Nose
Ø wire
N° of layer
Built-in program
number
50 A
160 A
mm mm mm mm mm mm
degrees
mm
230 V
mm/
min
Stain-
less
25 2 Flushing 0° 2.5 1 2 2.4 30° 0.2 0.8 1/1 81 X 65
Stain-
less
25 2
Protru-
ding
15° 0.5 1.2 2.4 30° 0.2 1/2 83 X 113.6
15° 2 2 1.2 2.4 30° 0.2 0.8 2/2 84 X 113.6
Stain-
less
26.7 1.5 Flushing 0° 3 1 2.2 2.4 30° 0.2 0.8 1/1 85 X 69
Stain-
less
26.7 1.5
Protru-
ding
15° 0.5 1.2 2.4 30° 0.2 1/2 87 X 113.6
15° 2 2 1.2 2.4 30° 0.2 0.8 2/2 88 X 121.4
Mild
steel
25 2.5 Flushing 30° 2 2 1.2 2.4 30° 0.2 0.8 1/1 90 X 69
Mild
steel
25 2.5
Protru-
ding
30° 0.5 1.2 0.5 2.4 30° 0.2 1/2 91 X 71
30° 2 2.2 1.2 2.4 30° 0.2 0.8 2/2 92 X 114
Mild
steel
25 3 Flushing 0° 2 1 1.2 2.4 30° 0.2 0.8 1/1 93 X 65
Mild
steel
25 3
Protru-
ding
15° 0.5 1.2 2.4 30° 0.2 0.8 1/2 95 X 113.6
15° 2 2 1.2 2.4 30° 0.2 0.8 2/2 96 X 121.4