Why doesn’t the WT20 thorium tungsten electrode arc?
The reasons for not starting the arc or the weak arc column after starting the arc may include improper selection of tungsten electrodes, low doping of rare earth oxides, or uneven mixing. The solution includes selecting the correct type and specification of tungsten electrode, ensuring the correct doping amount and uniform mixing of rare earth oxides.
What is the cause of end explosion during welding process?
It may be due to splitting or bubbles at the tip of the tungsten electrode, which is usually caused by temperature and speed mismatch during the forging and drawing process of the product. The solution includes improving the temperature and speed control of the rotary forging and drawing process.