Re: homemade thingy for turbo oil feed
 

yeah, i had talked to someone that i know can do it over the last little bit and i know you need to use a backside flux and either a stainless flux tig rod or special frontside flux. weld it in small portions at a time.

Re: homemade thingy for turbo oil feed
 

More info on stainless flux tig rod. I have never seen/heard of it?

Re: homemade thingy for turbo oil feed
 

there are lots of ER flux rods avalible. You just have to make sure the flux does not get under the weld post root-pass. They're used for root-passing pipe when a backpurge is not viable. ASME FTW.
R308LT1-5, R309LT1-5, R316LT1-5 & R347LT1-5
Same basic classifications as SFA-5.3 & 5.9, etc

Re: homemade thingy for turbo oil feed
 

Intersting.

So say I am welded schedule 40 pipe, instead of back purging, I could do a root pass with flux cored stainless rod?

And then do a weave pass with filler with regular 309 filler rod?

Re: homemade thingy for turbo oil feed
 

If you wanted but note that is NOT a SMAW (stick) flux electrode. Those are ER. This is a non electrode filler rod designed to root pass tig. Rxxxxxx
Also note that the backside should still be purged if it's in the HAZ.

Re: homemade thingy for turbo oil feed
 

It's also likely much cheaper to gas-purge the backside with normal rods. Talking almost no argon flow VS paying more money for flux rods - that wont deposit as much material.

Re: homemade thingy for turbo oil feed
 

Yeah, I figured its cheaper to just back purge. I was trying to get the basics of what the Flux rod is used for. I read up a little more on it and it seams as though its used in larger pipe line welding.

Re: homemade thingy for turbo oil feed
 

there's all kinds of flux gtaw rods and gas rods. not just stainless. used for all kinds of stuff.