Rare earth tungsten electrodes and lanthanum tungsten electrodes are both types of tungsten electrodes with excellent performance and are widely used in the welding industry. Overall, rare earth tungsten electrodes are generally more durable than lanthanum tungsten electrodes. The main reason is that rare earth tungsten electrodes are doped with a variety of rare earth oxides, which synergistically enhance the thermal stability and ablation resistance of the electrode, making it less prone to end chipping or burnout in high-temperature welding environments.
Although lanthanum tungsten electrode also has good thermal stability and arcing performance, it is suitable for a variety of welding situations, but its doping element is relatively single, and the protection ability of the electrode head is slightly inferior in comparison. Therefore, rare earth tungsten electrodes exhibit longer service life and more stable arc performance in high-strength, long-term use, and automated welding equipment.
However, the specific durability will also be affected by the welding process, operating habits and environmental factors, and the selection should be comprehensively considered according to actual needs.
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