tjsmetalart
- tjsmetalart
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Joined:Tue Apr 06, 2010 5:23 pm
We are welding pickeld steel pipe root and hot pass are tig er70s with argon purge and cap7018 uphill.Any way to eleminate the mill scale caused by welding.Or tips on flushing pipe out its for hyd.fluid 2"sch 40
ironmonger
- ironmonger
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Joined:Mon Jul 19, 2010 8:39 pm
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Location:Waukesha, WI
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If you are purging the tig weld just continue the purge for the 7018 pass/passes.
Once the pipe is completely purged and the root pass is in you can reduce the argon flow rate to almost nothing. Welding doesn't create oxygen inside the pipe and the 'mill scale' is iron oxide.
No oxygen... no scale.
paul
Once the pipe is completely purged and the root pass is in you can reduce the argon flow rate to almost nothing. Welding doesn't create oxygen inside the pipe and the 'mill scale' is iron oxide.
No oxygen... no scale.
paul
paul
No trees were killed in the creation of this message, but a incredible number of electrons were inconvenienced
My grandfather was a blacksmith, but it didn't do me one damn bit of good...
No trees were killed in the creation of this message, but a incredible number of electrons were inconvenienced
My grandfather was a blacksmith, but it didn't do me one damn bit of good...