WELDTECH SC40C, Руководство по эксплуатации

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Material Thickness: (mm)
0.5 2 4 6 8
Cutting Current: (amps) 14 20 25 30 30
Cutting Guide
TOO FAST TOO SLOW CORRECT
Effect of Cutting Speed
Cutting with the SC40C
After turning the power switch (1) to the ON posi-
tion and making control and air pressure adjust-
ments as described on previous page, proceed as
follows:
1. Touch the tip of the torch to the workpiece (or
within 0.5mm / 0.02in. of the workpiece) hold-
ing the torch at about 15- 30° angle to avoid
damaging the tip.
2. Depress the torch switch. (Air and high fre-
quency should energize.)
3. Two seconds after depressing torch switch, the
plasma arc will start cutting.
4. After starting the cut, the tip can be dragged
along the workpiece if cutting up to 3mm thick
material. When cutting material greater than
3mm, maintain a 3.2mm tip-to-work (standoff)
distance.
5. When ending a cut, the torch switch should
be released and lifted off the workpiece just
before the end of the cut to minimize double-
arcing which can damage the tip. This is to
prevent hih frequency from reigniting after
cutting arc extinguishes.
6. In the postflow mode, the arc can be restarted
immediately by depressing the torch switch.
The two second preflow will automatically
cancel.
Keep moving while cutting. Cut at a steady speed
without pausing. Maintain the cutting speed so
that the arc lag is 10° to 20° behind the travel
direction. Use a 5° - 15° leading angle in the direc-
tion of the cut.