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WLa (Lanthanum-Tungsten Electrode)

Lanthanum -Tungsten Electrode is well known for its good welding performance .It is the electrode added with 1-2% of La2O3.The power of its electronic transgression is  2.7-2.8ev ,bearing the closest features to those of the  Thorium - Tungsten Electrode. Its arc features and burn spoilage endurance used with small and medium currents.
   Lanthanum-Tungsten Electrode is the substitution product of thorium-tungsten electrode because of its non-radiation. Its other advantage is its endurance of high current and low burn spoilage rate.


Model
Intermingled materials
Intermingled
Quantity%
Other Intermingled
Quantity%

Tungsten

Color

standard

WL10 La2O3 0.80-1.20 <0.20 Remainder
Black
WL15 La2O3 1.30-1.70 <0.20 Remainder
Golden
WL20 La2O3 1.80-2.20 <0.20 Remainder
Sky blue

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