a. Plasma arc welding machine with large energy density, directional arc strong, strong penetration ability. Without beveling, without a filler wire penetration circumstances 8 ~ 10mm thick stainless steel plate. Compared with TIG, under the same circumstances weld penetration. Plasma arc welding is much faster.
b. weld quality is not sensitive to changes in arc length. This is due to the proximity of the plasma arc cylindrical shape. Small divergence angle of approximately 5 °. And straight is good, the area on the heat spot is very small arc length variation, easily obtain a uniform weld shape. Small heated area on the workpiece, narrow heat-affected zone, and thus a small plate welding deformation.
c. reduction in water-cooled copper tungsten electrode inside the nozzle can not contact with the workpiece. Therefore, to avoid the phenomenon of weld metal produced tungsten folder. Arc agitation good bath temperature is high, the bath in favor of releasing the gas.
d. plasma arc due to compression effect and the high degree of thermal ionization. Remains stable when the current is small. Equipped with new electronic power supply. Welding current can be as small as 0.1A. Such a small current arc stable combustion can be achieved. Particularly suitable for soldering micro precision parts.
e. apertures can produce a stable effect. Through the hole effect. Positive get a good side welding when welding
