WZ3 zirconium zirconium tungsten electrode tungsten electrode WZ8

WZ3 zirconium tungsten electrode WZ8 zirconium tungsten electrode due to the characteristics of tungsten makes it very suitable for TIG welding and other similar electrode materials such work. Adding rare earth oxides in the metal tungsten to stimulate its electron work function, so that the tungsten electrode welding performance is improved: better arc electrode performance, more stable arc column, electrode burning rate smaller. Typically ceria rare earth additives, thoria, lanthanum oxide, yttrium oxide, zirconium oxide, and the like. Zirconium tungsten electrodes: addition of zirconium oxide in tungsten. Zirconium tungsten electrodes in the AC environment, good weldability. Especially at high load currents, the zirconium tungsten electrode demonstrated superior performance, the other electrode is irreplaceable. When welding ends zirconium tungsten electrode can be maintained to thereby reduce the infiltration of tungsten ball phenomenon, and has good corrosion resistance. Due to other alternative products, the demand for zirconium tungsten electrode will have a decreasing trend. The main alternative is lanthanum tungsten electrode. Other grades dopant doping doping electron work function color painted head WZ3 Zr02 0.20-0.40% <0.2% 2.5-3.0 brown WZ8 Zr02 0.70-0.90% <0.2% 2.5-3.0 white Name brand added element content W% size range (mm) uses a tungsten rod W-1 --- ≥99.95 ф1.0-6.0 manufacture of tungsten wire cutter and tungsten heater element, strut tubes and other electronic W-2 --- ≥99.95 ф1.0-6.0 high color temperature filament, filament temperature shock, spiral Cape filament halogen filament, fluorescent wire, saving filament, tube parts, gas discharge lamp electrode, a gate, side bars, lead, stents WAL-1 --- ≥99.95 ф1.0-6.0 WAL-2 --- ≥99.95 ф1.0-6.0 thorium tungsten rod WTH-7 0.70-0.99 margin ф1.0-6.0 hook spring cathode tubes, cathode gas discharge light sources and other WTH-10 1.00- 1.49 balance ф1.0-6.0 WTH-15 1.50-1.99 margin ф1.0-6.0 WTH-20 2.00-2.20 margin ф1.0-6.0 WTH-30 2.80-3.20 margin ф1.0-6.0 WTH-40 3.80-4.20 margin ф1.0-6.0 cerium tungsten rod WCe-10 0.80-1.20 margin ф1.0-6.0 hook spring cathode tubes, cathode gas discharge light sources and other WCe-15 1.30-1.70 margin ф1.0-6.0 WCe-20 1.80-2.20 margin ф1.0-6.0 lanthanum tungsten rod WLa-10 0.90-1.20 margin ф1.0-6.0 hot cathode tube material, the guide rod, fever, high temperature molybdenum foil silk WLa-15 1.30 -1.70 margin ф1.0-6.0 WLa-20 1.80-2.20 margin ф1.0-6.0 zirconium tungsten rod WZr-3 0.15-0.50 margin ф1.0-6.0 WZr-8 0.70-0.90 margin ф1.0- 6.0