WL10WL20WL15 Lanthanum tungsten electrode

Introduction:
Lanthanum Tungsten Electrode is well known its good welding performance.It is the electrode added with 1-2% of LaO.The poer of its electronic transgression is 2.7-2.8ev.Bearing the closes features to those of thorium-Tungsten Electrode.Its arc features and burn spoilage endurance are better when used in small or medium currents condition.
Lanthanaum-Tungsten Electrode is the most prodising substiutin product of thorium-tungsten electrode because of its nonradiation.Its andother advantage is the endurance of high current but low burn spoilage rate.