A zirconiated tungsten electrode produces an extremely stable arc and resists tungsten spitting. It is ideal for AC welding because it retains a balled tip and has a high resistance to contamination. Its current-carrying capability is equal to or greater than that of thoriated tungsten.
0.3% Zirconiated tungsten electrodes (AWS classification EWZr-3) ,which contain a minimum of 99.10% tungsten and .15 to .40% zirconium, is most commonly used for AC welding because it balls up well in AC welding and has a more stable arc compared to EWP or Pure Tungsten. Its current carrying capability is equal to or greater than 2% thoriated tungsten electrodes. Under no circumstances is zirconiated recommended for DC welding.
In AC welding ,especially under high load current, 0.3% Zirconiated tungsten electrodes can not be replaced by any other tungsten electrode. Out technical staff have been engaged in R%D thousand times and succeeded in solving the conflicts between zirconium content and processing. This electrode is suitable for magnesium, aluminum and their alloy.
Parameters of Zirconiated wolfram Electrode
Tolerances of this Zirconiated wolfram Electrode
Diameter( mm )