钨电极没有污染，属绿色环保产品。它仅用很小的电流就可轻松起弧，而且维弧电流也较小。在低电流直流的条件下，钨电极倍受欢迎，尤其用于管道和细小部件的焊接、断续焊接和特定数目的焊接时更具优越性。 characteristics: ceriated tungsten is a non-radioactive material. it is known to be especially good for dc welding with low amperage because it starts very easily at low amps and usually requires about 10% less amps to operate than thoriated material. it is very popular to be used for the welding of orbital tube, pipe, very small parts, short welding cycles and also where a specific number of welds are called and then the electrode is to be replaced.