Lanthanum Tungsten Electrode Type and the Lanthanum Advantages of Tungsten

Adding tungsten oxide, lanthanum tungsten electrodes produced . Specific data as follows :

Other grades dopant doping doping electron work function color coating head
WL10 La2O3 0.80 ~ 1.20% <0.20% 2.6 ~ 2.7 Black
WL15 La2O3 1.30 ~ 1.70% <0.20% 2.8 ~ 3.0 golden yellow
WL20 La2O3 1.80 ~ 2.20% <0.20% 2.8 ~ 3.2 Sky Blue

Lanthanum tungsten has the following advantages: * better * Mechanical cutting performance better creep resistance * High * recrystallization temperature ductility .

Lanthanum tungsten electrodes is already the internationally popular electrode materials, especially the content is 1.5% ( with a difference of 2.0% content ) of lanthanum tungsten electrodes .

Scientific research shows that 1.5% lanthanum tungsten, tungsten thorium with the nearest 2.0% demonstrated conductive properties, therefore , welding personnel can easily replace the electrode , rather than replace the device parameters.

In 1998 there is a very famous field trials , is to 2.0% tungsten thorium electrode , 2.0% cerium tungsten electrodes and two vendors 1.5% lanthanum tungsten electrodes at 70 Ann 150 amps , 300 volts DC environment for welding tasks , the result is that in both cases , 1.5% lanthanum tungsten electrodes have demonstrated its excellent welding performance , but also reflects its small burn rate characteristics.

Lanthanum tungsten electrode is also suitable for AC welding tasks , and performance excellence.


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