
The welder acquires 220V single phase industrial frequency DC power source through the power
switch and rectify through single phase rectifier bridge and then filtered through capacitor to get the
DC current. The 40 KHz AC current is got through the IGBT all-bridge inverter. Then this alternating
current, transformed by the intermediate frequency transformer and rectified by quick recovery
diode, outputs the stable direct current for the welder immediately after it has been filtered by the
reactor. The wire feed speed can be stepless adjusted through the speed adjust knob. The welding
current is easily influenced from the wire feed speed, usually the faster the wire feed speed the
bigger theAmp value under the same voltage.
MIG series use the movable carton like structures: The upper part in the front is equipped with a
welding current regulation knob, abnormal indicator light, working indicator. The back side is
installed with power switch, gas valve connection , cooling fan, power source lead-in wire, breaker.
On the top there is a handle for the convenient of easy transport. When you open the cover, there is
one primary transformer, one piece of printed circuit board. The bottom part is supplied with output
reactor, primary transformer and etc. Installed in the middle part is a radiator with power elements.
4. Welder’s Principle
www.fubag.ru
Omperator's anual
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Rectifier
Filter
Inverter
Function
Drive
Protection
Inspect
Transformation
Modulate
Process
Control
High
Frequency
Rectifier
Trait
Control
Current
Adjustment
Sampling
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0,6 1,2 .
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- Unifying control in MIG welding, slow wire feeding, easy arc start.
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By various sound protection performance, it can keep the welding machine from overheating, over
voltage, under voltage, over current and so on
High working efficiency. Automatic Wire Feeding can realize high speed welding
No special requirements for the welding wire. Both solid and flux-cored wires are available. The
diameter of the wire is between at mm
Convenient connection mode. outer connection make it quick ,safe ,simple and reliable
Dual Pulse technology, could use 1,0 mm aluminum wire
TIG Lift-ARC welding, program control, easy arc start, torch anti-sticking
MMAfunction is also available.And it also can weld cellulosic electrode