brass fluxers

[garydeanclubb]

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

Gary

[crystallographic]

Originally Posted by garydeanclubb

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?

[steve.murphy]

Does using a jet fluxer eventually cause problems for the torch because of the corrosive effect of the flux?

[flebus]

Originally Posted by steve.murphy

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.

[crystallographic]

Originally Posted by steve.murphy

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.

[steve.murphy]

Thanks Kent, good to know. I could live with the occasional tip replacement.
Cheers

Steve

[Maxakarudy]

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?