The higher thoria content in the EWTh-2 electrode causes the operating characteristic improvements to be more pronounced than in the lower content.
The additional thoria provides about 20 percent higher current carrying capacity
- When AC welding balling can be accomplished by welding with DC electrode positive prior to welding with AC
- During AC welding the balled end does not melt and so emission is not as good as from a liquid ball on an EWP
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