Advantages of tungsten electrode rod
Tungsten electrode has long service life and excellent welding performance. The needle-shaped tungsten electrode is easy to start an arc, and no arc is generated during welding. The arc is stable, does not drift, and does not disperse. The power saving effect is obvious, and the arc starting current is relatively reduced by 20-50%. Due to the low dielectric current, it is not easy to reduce during use.
The needle-shaped tungsten electrode is a conventional electrode with superior coal bonding performance.
Common size table of tungsten electrodes
|
Trad mark
|
Added impurity
|
Impurity quantity(%)
|
Other Impuritiesk(%)
|
Tangsten(%)
|
Electriedischansedpower
|
Color sign
|
|
WT10
|
ThO2
|
0.9-1.2
|
＜0.20
|
The rest
|
2.0-3.9
|
yellow
|
|
WT20
|
ThO2
|
1.8-2.2
|
＜0.20
|
The rest
|
2.0-3.9
|
red
|
|
WT30
|
ThO2
|
2.8-3.2
|
＜0.20
|
The rest
|
2.0-3.9
|
purple
|
|
WT40
|
ThO2
|
3.8-4.2
|
＜0.20
|
The rest
|
2.0-3.9
|
Orange
|
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