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AC/DC WIG SERIES EQUIPMENT
Summary
3. For AC TIG (rectangle wave), arc is more stable than Sine AC TIG. At the same time,
you can not only obtain the max penetration and the min tungsten pole loss, but also
obtain better clearance effect;
4. DC Pulsed TIG has the following characters:
1) Pulse heating. Metal in Molten pool has short time on high temperature status
and freezes quickly, which can reduce the possibility to produce hot crack of the
materials with thermal sensitivity .
2) The workpiece gets little heat. Arc energy is focused. Be suitable for thin sheet
and super thin sheet welding.
3) Exactly control heat input and the size of the molten pool. The depth of penetration
is even. Be suitable for welding by one side and forming by two sides and all position
welding for pipe.
4) High frequency arc can make metal for microlite fabric, eliminate blowhole and
improve the mechanical performance of the joint.
5) High frequency arc is suitable for high welding speed to improve the productivity.
AC/DC WIG 200D series welding machines is suitable for all positions welding for various
plates made of stainless steel, carbon steel, alloyed steel, titanium, magnesium, cuprum, etc,
Which is also applied to pipe installment, mould mend, petrochemical, architecture, decoration,
car repair, bicycle, handicraft and common manufacture.
MMA-------Manual Metal Arc Welding
PWM-------Pulse-Width Modulation
IGBT--------Insulation Gate Bipolar Transistor
TIG----------Tungsten Insert Gas Welding
2.2 Working Principle
The working principle of AC/DC WIG 200D welding machines is shown as the following
figure. Single-phase 230V work frequency AC is rectified into DC (about 312 V), then is conv-
erted to medium frequency AC (about
reducing voltage by medium transformer (the main transformer) and rectifying by medium fre-
quency rectifier (fast recovery diodes), then is outputted DC or AC by selecting IGBT module.
The circuit adopts current feedback control technology to insure current output stably. Meanwhile,
the welding current parameter can be adjusted continuously and steplessly to meet with the
requirements of welding craft.
230V,50Hz
43
20-40KHz) by inverter device (IGBT module), after
AC/DC WIG SERIES EQUIPMENT
2.3 Volt- Ampere Characteristic
AC/DC WIG 200D welding machine has
an excellent volt-ampere characteristic,
whose graph is shown as the following
figure. The relation between the con-
ventional rated loading voltage U
and
2
the conventional welding current I
is
2
as follows:
When I ≤600A, U =10+0.04I (V);
TIG
2
2
2
When I >600A,U =34(V).
2
2
When I ≤600A, U =20+0.04I (V);
MMA
2
2
2
When I >600A,U =44(V).
2
2
2.4 Specifications
Description
Weight
Power Source Dimensions
Cooling
Welder Type
European Standards
Number of Phases
Nominal Supply Voltage
Nominal Supply Frequency
Welding Current Range (MMA Mode)
Welding Current Range (TIG Mode)
Effective Input Current
Maximum Input Current
Single Phase Generator Requirement
MMA Welding Output, 40ºC, 10 min.
TIG Welding Output, 40ºC, 10 min.
Open circuit voltage (MMA/TIG)
Protection Class
NOTE
Note 1: The Effective Input Current should be used for the determination of cable size &
supply requirements.
Note 2: Generator Requirements at the Maximum Output Duty Cycle.
Summary
VECTOR DIGITAL AC/DC WIG 200D
8.7 kg
H425mmxW152mmxD291mm
Fan Cooled
Inverter Power Source
EN 60974-1 / IEC 60974-1
1
230V +/- 15%
50/60Hz
10 - 170A
10 - 200A
15.4A
30.9A
10KVA
170A @ 25%, 26.8V / 85A @ 100%, 23.4V
200A @ 40%, 18V / 126A @ 100%, 15V
60V DC
IP23
44
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