On 09/14/2010 06:08 PM, Artemus wrote:
"Tim wrote in message
...


Update: the local welding shop has an aluminum soldering kit and
aluminum brazing flux, but was out of aluminum brazing rod. They had
some zinc-alloy rod that may or may not have worked with the aluminum
brazing flux, in a size way bigger than my job.

So I got the soldering kit.

I'm going to see how well the soldering process works -- if it seems
almost but not quite strong enough then I'll try brazing, if it works a
charm I won't change.

--

Tim Wescott

As you have an OA torch it seems to me that if you use a reducing
flame the aluminum will have less of an opportunity to form an oxide
coating and may solder easier. Expert opinion anyone?

AFAIK that would only slow things down. Keep in mind that aluminum is
so electronegative that it'll reduce rust back to iron, and produce
enough heat in the process to melt the iron to steel (think "thermite
welding"). I don't know if it can reduce CO or CO2, but I wouldn't be
surprised.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

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"Applied Control Theory for Embedded Systems" was written for you.
See details at http://www.wescottdesign.com/actfes/actfes.html