純鎢電極不添加任何稀土氧化物，電子發(fā)射能力最小，引弧電壓高，載流能力差，易燒損，適合交流條件下和要求不嚴格的場合。純鎢電極在所有的鎢電極中價格最便宜，適合在交流條件下鎂、鋁及其合金的焊接。
Pure Tungsten Electrode is the electrode without any addition of oxide. The electrode emission capability is the smallest. It requests a high voltage for arc derivation and has a low current capacity and easily burnt. Consequently, it is commonly used in condition of AC and low welding requirements.
