Characteristics of lanthanide tungsten electrode.
Lanthanated tungsten electrode is European countries introduced in the eighty s hope replace thorium tungsten products improved varieties, excellent welding performance of lanthanum tungsten once pushed as far as the international welding industry, especially in European welding academic demand, also for this reason, lanthanum tungsten volume after the thorium-tungsten electrode, however lanthanated tungsten in the domestic market awareness is not high. Lanthanum tungsten electrode is characterized by its conductivity closest to 2% thorium tungsten electrode, durable current is high and burn rate is minimal.
Lanthanum tungsten has the following advantages:
Better mechanical cutting performance, better creep resistance, high recrystallization temperature, good ductility.
Lanthanide tungstellite electrodes are already the most popular electrode materials in the world, especially those containing 1.5 percent (different from 2.0 percent).
Scientific studies have shown that 1.5 percent lanthanum tungstate is the closest thing to the conductivity shown by 2.0 percent tungsten and thorium, so welders can easily change electrodes without changing equipment parameters.
In 1998 there was a very famous site test, will be 2.0% 2.0% thorium tungsten electrodes, tungsten cerium tungsten electrodes and two vendors to provide 1.5% of the lanthanum electrodes respectively in 70 and 150 current and 300 VDC environment welding task, fruit is that in both cases, 1.5% lanthanum tungsten electrode exhibited excellent welding performance, but also reflected the characteristics of its burn rate of small.
Lanthanum tungsten electrode is also suitable for ac welding, and its performance is also excellent.
