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particular material can be used different currents cutting.
If prevail productivity needs, set the maximum allowable
current and the speed in the column V
production.
Before making any adjustments, verify that:
• the torch is perpendicular to the cutting plane.
• electrode, nozzle and nozzle protection are not worn
out and that their combination is responsive to the
chosen work.
• the cutting direction, in function of the shape to be
obtained, is correct. Remind that the best side of a
cut is always the right with one respect to the torch
motion direction (the plasma used has diffuser holes
in a clockwise direction).
If you need to cut high thicknesses, particular attention
PROBLEM
CAUSE
SOLUTION
Oblique cutting
Electrode or nozzle worn out
Replace both
Stand off too high
Lower
stand off
Cutting speed too high
Adjust speed
Insufficient
penetration
Cutting speed too high
Adjust speed
Nozzle diameter too large compared to the
current set
Check cutting tables
Excessive plate thickness in
processing compared to the current set
Increase cutting speed
Ground wire not in good electrical contact with
the cutting plane
Check the tightness of the earth terminal to the
CNC
Presence of
“low speed
dross” *
Cutting speed too low
Adjust speed
Cutting speed too high
Reduce cutting current
Stand off too low
Raise
stand off
Presence of
“high speed
dross" **
Cutting speed too high
Adjust speed
Cutting speed too low
Increase cutting current
Stand off too high
Lower
stand off
Rounded cut
edge
Cutting speed too high
Adjust speed
Stand off too high
Lower the
stand off
* The low speed dross are thick dross, of globular shape, easy to remove. The kerf is fairly large.
** The high speed dross are thin dross, hard to remove. In case of very high speed, the cut wall is rather rough.
should be given during the step of lead-out: in particu-
lar, when trying to remove the accumulation of molten
material around the cutting start hole, so as to avoid
double arc phenomena when the torch comes by again
to the starting point. Moerover, keep the nozzle protec-
tion always clean from molten slag which sticked.
The following table shows some of the most frequent
problems and their solutions.
Содержание Plasma Sound PC 110/T
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Страница 134: ...134 NOTE NOTES AUFZEICHNUNGEN NOTAS ...
Страница 136: ...136 PLASMA SOUND PC 70 T ART 334 208 220 230 400 440V 50 60 HZ ...
Страница 137: ...137 PLASMA SOUND PC 70 T ART 334 95 380V 50 60 HZ ...
Страница 138: ...138 PLASMA SOUND PC 110 T ART 336 208 220 230 400 440V 50 60 HZ ...
Страница 139: ...139 PLASMA SOUND PC 110 T ART 336 95 380V 50 60 HZ ...
Страница 144: ...144 78 71 68 69 72 73 74 75 76 67 66 ART 1626 TORCIA CP 70C MAR CP 70C MAR TORCH ...
Страница 146: ...146 68 78 71 69 70 72 73 74 75 76 77 67 66 ART 1631 TORCIA CP 162C MAR CP 162C MAR TORCH ...