Thermal Dynamics CutMaster 40MM, Руководство по эксплуатации

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CUTMASTER 40MM
INTRODUCTION Manual 0-5084
2T-2
E. Type Cooling
Combination of ambient air and gas stream through
torch.
F. Torch Ratings
Manual Torch Ratings
Ambient
Temperature
104° F
40° C
Duty Cycle
100% @ 120 Amps @ 400 scfh
Maximum Current 120 Amps
Voltage (V
peak
)
500V
Arc Striking Voltage
7kV
Mechanized Torch Ratings
Ambient
Temperature
104° F
40° C
Duty Cycle
100% @ 120 Amps @ 400 scfh
Maximum Current 120 Amps
Voltage (V
peak
)
500V
Arc Striking Voltage
7kV
G. Gas Requirements
Manual and Mechanized Torch Gas
Specifications
Gas (Plasma and Secondary)
Compressed Air
Operating Pressure
Refer to NOTE
60 - 95 psi
4.1 - 6.5 bar
Maximum Input Pressure 125 psi / 8.6 bar
Gas Flow (Cutting and
Gouging)
300 - 500 scfh
142 - 235 lpm
!
WARNING
This torch is not to be used with oxygen (O
2
).
NOTE
Operating pressure varies with torch model,
operating amperage, and torch leads length.
Refer to gas pressure settings charts for each
model.
H. Direct Contact Hazard
For standoff tip the recommended standoff is 3/16
inches / 4.7 mm.
2T.04 Options And Accessories
For options and accessories, see section 6.
2T.05 Introduction to Plasma
A. Plasma Gas Flow
Plasma is a gas which has been heated to an ex-
tremely high temperature and ionized so that it
becomes electrically conductive. The plasma arc
cutting and gouging processes use this plasma to
transfer an electrical arc to the workpiece. The metal
to be cut or removed is melted by the heat of the arc
and then blown away.
While the goal of plasma arc cutting is separation of
the material, plasma arc gouging is used to remove
metals to a controlled depth and width.
In a Plasma Cutting Torch a cool gas enters Zone B,
where a pilot arc between the electrode and the torch
tip heats and ionizes the gas. The main cutting arc
then transfers to the workpiece through the column
of plasma gas in Zone C.
A-00002
Workpiece
Power
Supply
+
_
C
B
A
Typical Torch Head Detail