钍钨电极   WTh(Thorium- Tungsten Electrode)
 
钍钨电极是一种广泛使用的添加氧化物电极，它有比纯钨电极及其它氧化物添加电极还要优越的综合焊接性能，在长期使用过程中，它是其它氧化物电极所不可替代的。钍钨电极操作简便，电流负荷大，引弧容易，电弧稳定，断弧间隙大，损耗小，使用寿命长，再结晶温度更高，导电率更好，机械切割性能好。钍钨电极广泛使用于碳钢、不锈钢、镍合金和钛金属焊接，是高品质焊接的首选材料。

  
It is widely used as an additive oxide electrode ,having much more advanced comprehensive welding performance than the properties of Pure Tungsten Electrode and other additive oxide electrodes. It can not be replaced by other oxide electrodes during the long use process. It can be operated easily and current load is high .It can produce arc easily and steadily ,and the gap of the  breaking arc is big ,loss less and long life .It has much higher recrystallizing temperature, much better conductivity and better mechanical cutting property .It is used for welding carbon steel, stainless steel, nickel alloy and titanium metal. It is the first selection material for high quality welding.