2% lanthanated tungsten electrode (WL20)

Metallograph:

Welding Positions:

Description：

2% lanthanated tungsten electrode (WL20).Lanthanum -Tungsten Electrode is well known for its good welding performance It is the electrode added with 1-2% of La203.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 are better under the small or medium currents condition. Lanthanum-Tungsten Electrode is the most promising substitution product of thorium-tungsten electrode because of its non-radiation. Its another advantage is the endurance of high current and low burn spoilage rate.

Energy spectrum analysis:

Characteristic:

◆ Good ductility
◆ Good electronic work function
◆ Higher recrystallization temperature
◆ Good cutting ability
◆ DC
◆ Carbon steal, stainless steel, nickel alloy and titanium alloy suitable