Jasic EVO 2.0 EP-45, Руководство оператора

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CUT QUALITY
Dross
The formation of dross on the bottom of the plate can be caused when cutting parameters such as
speed, amperage, arc voltage, gas pressure/flow and type of gas are not correct for the metal type and
thickness being cut.
Most commonly, incorrect cutting speeds are to blame for excessive dross. High cutting speeds can
results in high speed dross that can be very hard to remove without grinding. Low speed dross can be
easily removed with a brush or chip hammer.
Top edge rounding
This is when the top edge of the cut face has eroded away and is not square which is created from the
plasma cutting process. It is generally caused when cutting with excessive current or standoff distance.
This can be a common occurrence when cutting thick materials.
TYPICAL CUTTING SPEEDS
Cutting speeds can vary according to power source output, cutting table quality, material thickness along
with material type being cut as well as the operators skill set.
Speeds shown below are offered as a guide only for our Jasic hand cutting systems using compressed
air, cutting mild steel material with the stated output currents ensuring that the cutting tip fitted matches
the stated amperages.
Note: The above chart is a guide as many factors can distort cutting chart figures when hand cutting.
Material Thickness Amperage Speed mm/m Air Pressure
40 5000 - 6000 5 bar / 73psi
1mm 60 6200 - 7000 5 bar / 73psi
80 7200 - 8000 5 bar / 73psi
40 1800 - 2600 5 bar / 73psi
3mm 60 3200 - 4200 5 bar / 73psi
80 3800 - 4600 5 bar / 73psi
40 800 - 1100 5 bar / 73psi
6mm
60 1200 - 2000 5 bar / 73psi
80 1800 - 2500 5 bar / 73psi
40 200 - 300 5 bar / 73psi
12mm 60 400 - 650 5 bar / 73psi
80 650 - 820 5 bar / 73psi
60 400 - 500 5 bar / 73psi
15mm 80 450 - 540 5 bar / 73psi
100 750 - 880 5 bar / 73psi
60 280 - 340 5 bar / 73psi
20mm
80 380 - 450 5 bar / 73psi
100 400 - 480 5 bar / 73psi
120 650 - 750 5 bar / 73psi
25mm
80 180 - 210 5 bar / 73psi
100 200 - 240 5 bar / 73psi
120 300 - 380 5 bar / 73psi
160 400 - 480 5 bar / 73psi
30mm 160 320 - 400 5 bar / 73psi
45mm 160 230 - 350 5 bar / 73psi