Strata ADVANCECUT 75, Руководство по эксплуатации

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it off using pliers or chipping off with a chisel or scraping or grinding the finished cut as
needed and is generally only a minor inconvenience.
A combination of factors contributes to the build-up of dross. They include; material type,
material thickness, amperage used for the cut, speed of the torch across the work-piece,
condition of the torch tip, input line voltage, air pressure, etc. Generally there is an inversely
proportional relationship between output current and speed of cut. Do not use more output
current than is necessary and adjust speed of cut toward minimizing dross build-up on underside
of cut. Experiment with adjusting current and speed to minimize dross.
When dross is present on carbon steel, it is commonly referred to as either ‘high speed, slow
speed, or top dross’. Dross present on top of the plate is normally caused by too great a torch to
plate distance.
‘Top dross’ is normally very easy to remove and can often be wiped off with a welding glove.
‘Slow speed dross’ is normally present on the bottom edge of the plate. It can vary from a light
to heavy bead, but does not adhere tightly to the cut edge, and can be easily scraped off. ‘High
speed dross’ usually forms a narrow bead along the bottom of the cut edge and is very difficult
to remove. When cutting troublesome steel, it is sometimes useful to reduce the cutting speed to
produce ‘slow speed dross’. Any resultant clean up can be accomplished by scraping, not
grinding.
2.4 Troubleshooting
Trouble Possible Reason Suggested Remedy
Torch will not come
on
1.Power switch OFF
2.Air supply is not of sufficient volume or
pressure
3. Work piece ground clamp not attached.
1.Turn power switch to the ON position
2. Check air supply (60–80 PSI, 3.5cfm
required)
3. Attach to work piece or to steel table with
work piece securely clamped to table
Sparks are shooting
upward instead of
down through the
material.
1.Plasma torch is not piercing the
material
2. Torch may be too far away from the
work piece
3. Material may not be earthed properly
4. Travel speed too fast
1. Increase current
2. Decrease the distance of your torch to the
work piece
3. Check connections for proper earth
4. Reduce speed
Beginning of cut not
completely pierced
Possible earth connection problem Check all connections
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ADVANCECUT 75