Торий-вольфрамовый электрод

Thorium-tungsten electrode is one of the first use of rare earth tungsten electrodes, welding performance is so far the best variety of tungsten electrodes, therefore, at a global scale of the variety of tungsten electrodes the highest market share, but because thorium tungsten electrode in powder metallurgy and cast rolling mill the process of radioactive pollution will happen, so Europe and the United States to limit the production of the varieties of electrodes, but because of its excellent welding performance, its use has not been restricted.Easy to get up the arc, in the welding process unceasingly arches. The electric arc is stable, not spread around and disperse the arc. The electricity saving effect is obvious, gets up the arc current relatively Drops 20 - 50%. Because welding current lower, in the useprocess is not easy to appear splashes, extremely not instable circle.The electrode causes Is long with the life.Trade mark,compositions,color sign and discharged powerType of Electrode Model Added Impurity Impurity quantity% Other Impurities% Tungsten% Electric discharged power Color sign Thorium TungstenWT20ThO21.7-2.2<0.20 The rest2.0-3.0Red