ESAB Precision Plasmarc Installation, Operation And Maintenance Manual For Residential Installation page 45

SECTION 4
NOTICE
4.3.4 Stainless Steel
Material Thickness: 22 GA (.028 " ) to 16 GA (.062") (0,7 mm to 1,6 mm) Material Thickness:
Material Thickness: Material Thickness:
Cut Qualities: Cut Qualities: Cut Qualities: Cut Qualities:
Plasma Gas: Nitrogen Plasma Gas: Plasma Gas: Plasma Gas:
Shield Gas: Nitrogen/Methane Shield Gas:
Shield Gas: Shield Gas:
Discussion: Discussion: Discussion: Discussion:
Material Thickness: 26 GA (.018") to 16 GA (.062") (0,5 mm to 1,6 mm) Material Thickness: Material Thickness: Material Thickness:
Cut Qualities: Cut Qualities:
Cut Qualities: Cut Qualities:
Plasma Gas: Plasma Gas: Plasma Gas: Oxygen Plasma Gas:
Shield Gas: Oxygen/Nitrogen Shield Gas: Shield Gas: Shield Gas:
Discussion: Discussion: Discussion: Discussion:
Material Thickness: .125" to .625" (3,2 mm to 15,9 mm) Material Thickness: Material Thickness: Material Thickness:
Cut Qualities: Cut Qualities: Cut Qualities: Cut Qualities:
Plasma Gas: Air Plasma Gas:
Plasma Gas: Plasma Gas:
Shield Gas: Shield Gas: Air Shield Gas: Shield Gas:
Discussion: Discussion: Discussion: Discussion:
Refer to Cutting Process Data in the PT24
Manual for recommended flow/pressure
settings.
Positive cut angle
•
Excellent dross performance
•
Shiny cut surface.
•
Because of high cut speeds, a positive cut face angle is expected. Use
a 70-amp nozzle at 50 amps to allow more gas to exit the nozzle.
Dark cut face
•
Virtually dross free
•
Improved cut squareness
•
Low amperage cutting/slower speeds produce squarer cuts in thin
materials. The oxygen allows for a lower arc voltage, improving cut
squareness. The "B" nozzle is used at 30 amps
Cut edge dark
•
good dross performance
•
Good cut angle
•
When they are the same, the shield and plasma gases combine. This
combination has the effect of increasing the cut gas flow/pressure. This
increased flow/pressure directly influences cut squareness.
4-11
OPERATION