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
|
