TECHNOLOGY FEATURE
A new generation TIG welding machine adopts the advanced soft switching inverter
based on the core fitting of imported IGBT and microcrystal magnetic cores with the
20KHZ inverter frequency. The product owns high load duty cycle with arc igniting
current and current thrust control function. It owns the advantages of automatic
compensation function for voltage fluctuation, stable arc, even weld crater, little splash
and good weld formation. And on the other hand, it first applies the digital circuit control
technique for the purpose of quality of welding, which not only reduces the weight and
volume much and improves the portability but simplifies the operation of facility,
getting good arc ignition and welding performance to improve the precision of welding.
Due to adopting the digital circuit control, the pre-welding set value can be displayed
by the number. The actual value is displayed during the welding, and the value is
locked automatically after welding, which makes convenience for presetting and
control of welding criterion.
The way of arc striking is the HF arc striking. It adopts one kind of new electric HF arc
igniter with strong HF discharge. The unique property improves the adaptability of welding
machine, and even connecting long cable, it can keep good arcing performance. Its top
inverting frequency of 20KHZ reduces the current
fluctuation’s influence for arc much,
which makes arcing and arc static current very low (20A). The arc burns steadily and
quietly with dense arc and small heat affected zone, especially suitable for welding thin
metal plates. Considering all aspects of
factors’ influence for the welding machine in
designing, the advanced design is adopted in some minutiae. The shell adopts the
engineering plastic, and the die is shaped by single-pressing with prominent edge for
protection; the inner bare line adopts the insulating varnish with high insulating strength
for protection that can cope with rugged environment. In addition, fully considering the
economy of welding machine use in the design, the power consumption efficiency of all
digital TIG welding machine reaches 90%, and the power factor reaches 0.89
