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Old 08-07-2015, 04:20 AM
garydeanclubb garydeanclubb is offline
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Default brass fluxers

I am a mechanical engineer interested in learning about brass fluxers.

Gary
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Old 08-07-2015, 04:49 PM
crystallographic crystallographic is offline
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Quote:
Originally Posted by garydeanclubb View Post
I am a mechanical engineer interested in learning about brass fluxers.

Gary
Hi Gary,

Inline gas fluxers ;
http://www.gasflux.com/equipment.html

aka: "jet fluxer"

"how to build a gas fluxer" in machinist and bicycle building blogs/forums?
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Old 08-07-2015, 05:18 PM
steve.murphy steve.murphy is offline
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Does using a jet fluxer eventually cause problems for the torch because of the corrosive effect of the flux?
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Old 08-07-2015, 05:44 PM
flebus flebus is offline
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Originally Posted by steve.murphy View Post
Does using a jet fluxer eventually cause problems for the torch because of the corrosive effect of the flux?
I doubt it. Esab Jet Flux for example is explicitly non-corrosive.
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Old 08-07-2015, 08:10 PM
crystallographic crystallographic is offline
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Default Gas fluxers, non-corrosive brazing flux

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Originally Posted by steve.murphy View Post
Does using a jet fluxer eventually cause problems for the torch because of the corrosive effect of the flux?
Hi Steve,
Since my company sells both torches and tips for welding, brazing, and soldering, we hear from customers doing this work. One production company makes brass lamps and they use the auto-fluxers with several of our torches.

Because of the reaction of the flux to the torch tips - over time - they replace the tips due to corrosion after about 2 weeks of steady 8 X 40 hours. Even though they use a "non-corrosive " flux and though the brass they join does not suffer any corrosion, the torch tips do corrode because of the constant 1400F environment they see while delivering a steady flow of the flux directly into the brazing heats.

Non-corrosive at 30F - 100 F (0C to 45C) does not mean non-corrosive while flux-coated at sustained elevated temps.
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Last edited by crystallographic; 08-08-2015 at 12:05 AM.
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Old 08-07-2015, 11:17 PM
steve.murphy steve.murphy is offline
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Thanks Kent, good to know. I could live with the occasional tip replacement.
Cheers

Steve
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Old 08-08-2015, 01:45 AM
Maxakarudy Maxakarudy is offline
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Hi Gary,
Gas fluxers are a quite specific expensive piece of kit, I'm assuming you know about brazing flux powder already, so what are you building?
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