Tungsten electrodes suitable for high-end automated welding machines mainly require stable arcing, good arcing performance, long life and less spatter. Several commonly used tungsten electrodes include:
Lanthanum tungsten electrode（WL15、WL20）
Excellent arc initiation performance, stable arc and long life;
Wide range of adaptation, suitable for various welding conditions;
Low spatter, ideal for automation and robotic welding.
Cerium Tungsten Electrode (WC20)
It is particularly easy to arc under low current, and the arc is soft;
The amount of spatter is minimal, and the weld quality is high.
It is commonly used for thin plates and fine welding, and is widely used in automation equipment.
Thorium Tungsten Electrode (WT20)
Strong electron emission ability, arc concentration and stability;
Reliable welding performance, but due to radioactivity problems, its use is restricted in some areas;
It is still used by some high-end automation systems.
Zirconium Tungsten Electrode (WZ8)
Suitable for AC welding aluminum and magnesium alloys, arc stability;
It has the ability to self-spherine and reduces electrode consumption;
Some automated aluminum welding equipment is used.
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