Alternatives to backpurging
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Alternatives to backpurging
First of all I'm looking for opinions on backpurging alternatives from people who have acutally used Solar Flux or other types of purging solutions. I've already checked some web sites and they are claiming the same/if not better results from using Solar Flux than purging with argon due to the fact that its not dissapating and doesn't become diluted in some areas cuz of the fact that argon is heavier than air?? Looking for expert opinion cuz a lot is riding on whichever method i decide to use. Possibly see some comparison pics. Thanks welders!
Ryan
Slowmotion Motorsports
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Re: Alternatives to backpurging (Teglove2)
Solar Flux works. Only problem is with turbo manifolds you'd have to figure out a way to clean out the backside of the welds once done otherwise the flux could chip off and get in the turbo.
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Re: Alternatives to backpurging (b16hybridsol)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b16hybridsol »</TD></TR><TR><TD CLASS="quote">whats wrong with standard backpurging?</TD></TR></TABLE>
Having to waste argon on a 3" stainless exhaust is just about pointless. If the exhaust is hung properly and not baring more weight than it should be it'll be more than fine using Solar Flux.
Modified by backpurge at 1:20 AM 6/29/2006
Having to waste argon on a 3" stainless exhaust is just about pointless. If the exhaust is hung properly and not baring more weight than it should be it'll be more than fine using Solar Flux.
Modified by backpurge at 1:20 AM 6/29/2006
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Thanks for the opinions guys.....we are going to try using solar flux out and see if we can get small wire wheels inside to help clean them out. We will probably end up using both methods for different uses. The main reason of coarse is not to waste so much gas(prevent frequent trips to go get gas) and save us some time making adapters to fit the various stages of welding "things."
Ryan
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Re: (Teglove2)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Teglove2 »</TD></TR><TR><TD CLASS="quote">Thanks for the opinions guys.....we are going to try using solar flux out and see if we can get small wire wheels inside to help clean them out. We will probably end up using both methods for different uses. The main reason of coarse is not to waste so much gas(prevent frequent trips to go get gas) and save us some time making adapters to fit the various stages of welding "things."
Ryan</TD></TR></TABLE>
Having never backpurged anything... I'm not sure you'd use much gas. If you cork each end all you need is enough to displace the oxygen, then a very tiny amount to deal with leaks. I'd think it would be just a few cubic feet total.
Ryan</TD></TR></TABLE>
Having never backpurged anything... I'm not sure you'd use much gas. If you cork each end all you need is enough to displace the oxygen, then a very tiny amount to deal with leaks. I'd think it would be just a few cubic feet total.
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Re: (kb58)
Can someone school a newb, How do you packpurge, let's say you have your manifold tacked up and you want to back purge the runner you are working on. I assume you block off the other 3 ports (using? aluminum foil?) and you block both ends off of the runner you are working on and poke a hole in one end. Obviously you need another tank of argon, but what do you use to run to the runner, a rubber hose (if so wont it melt?)
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Re: (TurboSI56)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboSI56 »</TD></TR><TR><TD CLASS="quote">Can someone school a newb, How do you packpurge, let's say you have your manifold tacked up and you want to back purge the runner you are working on. I assume you block off the other 3 ports (using? aluminum foil?) and you block both ends off of the runner you are working on and poke a hole in one end. Obviously you need another tank of argon, but what do you use to run to the runner, a rubber hose (if so wont it melt?)</TD></TR></TABLE>
Yes that's correct. About the hose, just run it to one of the runners that's not being worked on. All you're doing is keeping the oxygen out, there's no need for any pressure, and the tighter your tubes are the less gas you'll need. Heck I wonder if you could even fill the inside with the argon from your TIG torch, then seal it off. That might work for a couple minutes, then refill it. How well it'll work depends how little leaks out. AFAIK argon is heavier than air so it'll try to leak out low spots.
Yes that's correct. About the hose, just run it to one of the runners that's not being worked on. All you're doing is keeping the oxygen out, there's no need for any pressure, and the tighter your tubes are the less gas you'll need. Heck I wonder if you could even fill the inside with the argon from your TIG torch, then seal it off. That might work for a couple minutes, then refill it. How well it'll work depends how little leaks out. AFAIK argon is heavier than air so it'll try to leak out low spots.
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Re: (tony1)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 »</TD></TR><TR><TD CLASS="quote">From burns website...
"In the case where back purging is not possible then the recommended course is to use a welding flux on the back side of the weld area"</TD></TR></TABLE>
eh. close enough
"In the case where back purging is not possible then the recommended course is to use a welding flux on the back side of the weld area"</TD></TR></TABLE>
eh. close enough
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Re: (kb58)
it will leak were it burns your tape off so if you dont keep a constant flow of argon in your just going to get sugar, why risk it for a few cents in argon not like you need allot of flow going in the work peace after its full.
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Just a little update. Finally, the rep from Solar Flux called me back and said that everyone who said "its not an alternative for backpurging" are all wrong......he says. "It is an absolute substitute!" The reason he didnt get back to me quickly is because they were gone at the Indy race this weekend, aka Formula 1. He told me that formula 1 teams use it when welding their exhaust manifolds!! We shall be getting it by early next week so im going to post some before/after pics of both styles......
Ryan
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Re: (Teglove2)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Teglove2 »</TD></TR><TR><TD CLASS="quote">Just a little update. Finally, the rep from Solar Flux called me back and said that everyone who said "its not an alternative for backpurging" are all wrong......he says. "It is an absolute substitute!" The reason he didnt get back to me quickly is because they were gone at the Indy race this weekend, aka Formula 1. He told me that formula 1 teams use it when welding their exhaust manifolds!! We shall be getting it by early next week so im going to post some before/after pics of both styles......
Ryan</TD></TR></TABLE>
i'm really interested to see this. If you could cut the pieces in half if at all possible
Ryan</TD></TR></TABLE>
i'm really interested to see this. If you could cut the pieces in half if at all possible
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