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| Pure tungsten electrode, tantalum tungsten electrode, composite electrode | ||||||
| Electrode name： | Brand | Added oxide | Impurity content% | Tungsten content% | Color code | |
| kind | content% | |||||
| Pure tungsten electrode | WP | -- | -- | <0.20 | margin | green |
| Tungsten tungsten electrode | WY20 | Y2O3 | 1.8-2.2 | <0.20 | margin | blue |
| Composite electrode | 1.5-3.0 | <0.20 | margin | |||
|
Features: Pure tungsten electrode is the cheapest of all tungsten electrodes and is suitable for welding magnesium, aluminum and other alloys under AC conditions. When the tungsten electrode is welded, the arc beam is slender and has a large degree of compression, especially under medium and large current conditions, and is currently mainly used in the military and aerospace industries. The composite electrode is made by adding two or more kinds of rare earth oxides to tungsten, and each additive complements each other, which makes the welding performance superior. |
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