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Soldering
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JeffDening
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Joined: February.01.05
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Posted: February.10.05 at 7:28am | IP Logged Quote JeffDening

As always, I am experimenting and testing theories.

I have learned that acetylene has a higher flame temp but less BTU's than LP gasses (propane, butane, natural gas). I find the results I get with my blazer torch (butane) to be "better" than with my acetylene/room air torch. I get less burned glue, less burned lacquer, and I find the working time with pads to be more to my liking.

My question is if anyone knows of a natural gas torch--basically a bunsen burner with a handle. I know natural gas has its limitations but for the cost compared to other fuels I am leaning towards having a city gas line run into my shop.

JD
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kimslava
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Posted: February.15.05 at 9:03am | IP Logged Quote kimslava

I don't have much firsthand info, but I do know that the guys at Badger State (Elkhorn,WI) who do the most soldering use natural gas/compressed air torches. There's two lines running to the torch, one for the natural gas and one for the compressed air and they mix it almost like you would oxy/acetylene.
I've been using either a propane torch or a Blazer for soldering, but am thinking of getting an acetylene/air torch because I have occasional need to do brazing which requires a higher temp than I can currently attain. I think I can do brazing with acetylene/air torch if I use a #3 tip.
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stevemarti
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Posted: February.16.05 at 11:44am | IP Logged Quote stevemarti

I studied at Badger. Since I don't spend whole days just soldering on mostly bare metal, I don't think the NG and compressed air would be a good match at my shop. I did think they worked quite well in the mount department. I do almost everything with a softflame acetylene torch like the guys in the reed assembly area use. It's small enough for pad work or hot enough to braze keys and such. I will occasionally use a portable porpane plumbing torch for things such as unsoldering large horns.
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stevemarti
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Posted: February.16.05 at 12:01pm | IP Logged Quote stevemarti

Ferree lists a couple of bunsen style burners; none with a handle like a regular torch though. I don't have any first hand experiance using these.  
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NealAnderson
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Posted: March.16.05 at 9:31am | IP Logged Quote NealAnderson

Red Wing Technical School uses natural gas torches. Ask John Huth about where to obtain them. I find that it take some practice, but I can do a fine job with the torch I'm most familiar with. Right now I use MAPP gas.
jhuth@southeastmn.edu
John Huth is currently serving as VP for NAPBIRT.
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NealAnderson
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Posted: March.16.05 at 9:39am | IP Logged Quote NealAnderson

For woodwinds I use butane or a pad cup heater, for soldering I normally use MAPP gas, and I've considered getting an oxy/MAPP torch, but haven't needed it yet.
MAPP gas is cheap, and I can do just as good a job with it as others can using their torch of choice.
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motomom
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Joined: April.08.07
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Posted: April.09.07 at 3:11pm | IP Logged Quote motomom

We have used ng/compressed air torches for many years on all of our benches, smaller tips on the woodwind benches. But, when we need a really hot flame, we disconnect the gas from a line and connect propane/compressed air, as it produces a much hotter flame.
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goglobal
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Posted: August.22.09 at 6:11pm | IP Logged Quote goglobal

There are some new and improved Portable Butane Torches and Burners available form the website: www.porta-lab.com . Worth taking at look at!!!
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BENSCHILDGEN
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Joined: January.30.05
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Posted: May.24.12 at 7:33am | IP Logged Quote BENSCHILDGEN

We have a natural gas/oxygen torch and the type "B" tank acetylene torch. I prefer the Smith torch to the prest-o-lite handle and tips.    The pret-o-lite seems to need "O" ring replacement quite often and the Smith rarely needs it.   I prefer the Acetylene and our other Tech prefers the Natural gas/Oxygen tank version.   I wish we also had an oxy/actylene.   You may also want to try one set up with MAPP gas instead of Acetylene.
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dparker
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Posted: June.28.12 at 5:27pm | IP Logged Quote dparker

Jeff,

I grew up using a natural gas mouth pipe for heating sax pad cups. Soft controlable flame. Slower than Ace but very controlable. Did alot of old lacquer sixes this way. But of course, when I was doing them they weren't that old! I think Ferree's still sells it

 



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