Thorium Tungsten Electrode Characteristics and Applications

Thorium oxide doped tungsten , producing thorium tungsten electrodes . Specific data as follows :

Grades dopant doping color coating head

WT10 ThO2 0.90 ~ 1.20% yellow
WT20 ThO2 1.8 ~ 2.2% red
WT30 ThO2 2.80 ~ 3.20% Purple
WT40 ThO2 3.80 ~ 4.20% orange

Compared with pure tungsten material , thorium tungsten has the following characteristics :

* Lower * electronic functions in the crystallization temperature higher * Better conductivity * Mechanical cutting performance.

Thorium tungsten electrode is a common use of tungsten electrode material , it is also advantageous than pure tungsten welding performance , which is widely used in DC welding field .

Thoriated tungsten electrode is simple , even when the overload current of the operation can be very good .

Even so , people still gradually turns to other types of tungsten electrodes , such as tungsten and tungsten lanthanum cerium , not only because they are in most applications have shown excellent performance, but it is important that they do not radiate injury. Since thorium tungsten electrodes produce small amounts of radiation thorium oxide , making some welding personnel not go near them.

In the use of thorium tungsten electrode welding must maintain good ventilation , waste welding head to properly handle .


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