Thorium Kekai tungsten & Molybdenum Technogy tungsten rods electrode is the earliest use of rare earth tungsten electrodes , is so far the best performance of the tungsten sheet electrode welding varieties , therefore , on a global scale the highest market share in the tungsten electrode varieties, but because thorium tungsten tube electrode grinding and polishing in metallurgy and rolling radioactive contamination occurs during the so European countries to limit the production of the varieties electrode , but because of its excellent welding performance, its use is not restricted.
Thoriated tungsten electrode containing thoria (Th02 or thoria ) , it is most commonly used in the U.S. tungsten electrode Analyzing other tungsten weights electrode has become a standard quality . However, since such low levels of tungsten electrodes radiation hazards , many users have switched to the other options. Overall, 2% of the thorium tungsten electrode is a relatively good tungsten electrode , has the lowest work function , even under overload voltage also performed well . Thorium tungsten wire electrode performance in many respects superior to pure tungsten electrodes. Thorium oxide provides higher current carrying capacity than pure tungsten about 20 percent , generally longer life, but also help prevent contamination of welding time . Use thorium tungsten electrode arc starting easier and more stable than pure tungsten arc electrode or zirconium tungsten electrodes. Thorium tungsten electrode 1% (EWTh - 1) and thorium tungsten electrode 2% (EWTh - 2) can be used DCEN. They remain in the tip of the welding process sharpened , so the welded steel pipe can be used , usually not current, because it is difficult to maintain the spherical tip of the welding without cracking , which is necessary for the DC .
Thoriated tungsten electrode containing thoria (Th02 or thoria ) , it is most commonly used in the U.S. tungsten electrode Analyzing other tungsten weights electrode has become a standard quality . However, since such low levels of tungsten electrodes radiation hazards , many users have switched to the other options. Overall, 2% of the thorium tungsten electrode is a relatively good tungsten electrode , has the lowest work function , even under overload voltage also performed well . Thorium tungsten wire electrode performance in many respects superior to pure tungsten electrodes. Thorium oxide provides higher current carrying capacity than pure tungsten about 20 percent , generally longer life, but also help prevent contamination of welding time . Use thorium tungsten electrode arc starting easier and more stable than pure tungsten arc electrode or zirconium tungsten electrodes. Thorium tungsten electrode 1% (EWTh - 1) and thorium tungsten electrode 2% (EWTh - 2) can be used DCEN. They remain in the tip of the welding process sharpened , so the welded steel pipe can be used , usually not current, because it is difficult to maintain the spherical tip of the welding without cracking , which is necessary for the DC .
没有评论:
发表评论