Lotos Technology LTP7500CNC, Руководство пользователя, Страница: 21 / 32

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Hand torch cutting suggestions
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It is easier to pull the torch through the cut than to push it.
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To cut thin material reduce the amperage until you get the best quality cut.
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Use the correct size tip orifice for the amperage being used.
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For Straight cuts use a straight edge or cutting buggy as a guide. For circles, use a template
or circle cutting attachment.
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Check that the front-end consumable parts of the plasma cutting torch are in good condition.
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Drag the torch tip lightly along the work piece to maintain a steady cut.
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While cutting, make sure that sparks exit from the bottom of the work piece. The sparks should
lag slightly behind the torch as you cut (15° — 30° angle from vertical).
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If sparks spray up from the work piece, move the torch at a slower pace, or set the output
current higher.
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With either the 75-degree or 15-degree hand torch, hold the torch nozzle perpendicular to the
work piece so that the nozzle is at a 90° angle to the cutting surface. Observe the cutting arc
as the torch cuts.
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If you fire the torch unnecessarily, you will shorten the life of the nozzle and electrode.
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Pulling, or dragging, the torch along the cut is easier than pushing it.
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For straight-line cuts, use a straight edge as a guide. To cut circles, use a template or a
radius cutter attachment (A circle cutting guide).