Cerium Tungsten Electrode -Ⅱ

In the early 1980s, cerium tungsten electrode was used as a non-radioactive tungsten electrode in place of thorium tungsten electrode, and was introduced to the United States. Under normal circumstances, the content of CeO₂ in cerium tungsten electrode is about 2%. In the low voltage conditions, because cerium tungsten electrode can easily arc at a low voltage, so it is suitable for DC welding. The best selection of tungsten electrode is thorium or lanthanum tungsten electrode when you welding at high voltage or high current conditions. Because of in AC welding condition, the Cerium tungsten electrode will easily split. Cerium tungsten electrode has a lower rate of evaporation and combustion rate than pure tungsten electrode. With the increase of CeO₂ content, these advantages are gradually revealed.

Cerium tungsten electrode advantages:
1. It owns excellent performance of tungsten;
2. It is the best products at low current condition, such as, tiny or complex parts welding.
3. No radiation, it can operate at low currents, and has a low melting rate and longer life.
4. It cathode spots are small, the pressure drop is small, does not burn, and it is widely used in arc welding.



 

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