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3
above 3 mm.
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In case of cutting in the corner or around the corner (see Figure 4), use the
long electrode and cutting tip (pos. 17 and 20). The cutting power while
using the Long cutting tip is decreased.
Fig. 3
Fig. 4
7.5 IMPORTANT RULES
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The pilot arc burning time should be limited only to the time necessary. It
lowers the wear of the cutting tips and electrodes.
•
Never turn off the main switch immediately after finishing cutting but always
leave time to run cooling cycle to cool down the torch. Immediate turn-off
only in case of emergency.
•
Ensure a good el. Contact of the work lead clamps and cutting material.
•
Check and timely exchange cutting tips and the electrodes. Lifetime of
these parts is only a few hours of cutting time and is highly dependent on
compliance with the principles of good cutting.
•
Disconnect the machine from the mains before replacing the torch
consumable parts.
•
Unplug the machine from the mains before any intervention inside the
machine.
•
PEGAS 40 PLASMA PFC
is adapted for use with torch ABICUT 45. This
combination comply with EN 60974-7 Article 10.1.4. Using any other
type and design of a torch must be approved by ALFA IN a.s.
•
Imperfect capture of condensate would cause its elimination in the area of
the cutting tip and it would prevent ignition of the pilot arc.
7.6 SOURCES OF POOR QUALITY CUTS
7.6.1 Shallow penetration of the cut
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The cutting speed is too high. Make sure the slope of the cutting arc does
not exceed about 15 ° (see Figure 5).
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High wear of the cutting tip or electrode (see Figure 6)
•
Too large thickness of material and not adequately chosen value of current
and diameter of the cutting tip.
•
Bad contact between the work lead clamps and material.