Re: Annealing copper was (My Primary Coil disaster)

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "sundog by way of Terry Fritz <twftesla-at-qwest-dot-net>" <sundog-at-timeship-dot-net>

Hi All,

 When making the terminal clips for my 833A's connectors, I cut a 3" section
of hard copper pipe, heat it dull red with a propane torch (takes about 3-4
min), then grab it with pliers and dunk it *carefully* into a tub of water.
This makes the black stuff flake off, and the copper is easy to work then.
If it gets work hardened again, I just anneal it again with the torch.  I've
annealed the same piece of copper about 5-6 times without any trouble.  Once
I get it into the shape I want, I gently flex the thing a few times to
stiffen the copper up, then I take it over to the wire wheel and it cleans
right up.  Beautiful shiny pink copper.  You can anneal aluminum also,
basically I heat gently with a propane torch till bits of paper smolder and
burn when dropped on it.  I dunk that in water and then it's soft as butter.

  There's my $.02
Shad

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, November 26, 2001 10:21 AM
Subject: Re: Annealing copper was (My Primary Coil disaster)


> Original poster: "Bob Bozarth by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<jbdetails-at-prodigy-dot-net>
>
>     So, is it safe to say that all it takes is heating the copper to
anneal
> it? When I was witness to Al being annealed, it needed the carbon or
> something from the acetylene. It was applied to the pipe we were trying to
> use on our hydraulic pipe bender. Some amount of time was required, then a
> neutral flame was applied to the blackened pipe which caused the carbon to
> disappear. It was interesting to watch, and learn a little about how it
> worked. I'm assuming that every type of metal has it's own way
>
>     Bob Bozarth
>     Experimenter
> ----- Original Message -----
> From: "Tesla list" <tesla-at-pupman-dot-com>
> To: <tesla-at-pupman-dot-com>
> Sent: Sunday, November 25, 2001 6:08 PM
> Subject: Re: Annealing copper was (My Primary Coil disaster)
>
>
> > Original poster: "S & J Young by way of Terry Fritz
<twftesla-at-qwest-dot-net>"
> <youngs-at-konnections-dot-net>
> >
> > Bob,
> >
> > Try hooking a husky arc welder across both ends of the tubing to
> > resistance-heat it to something below red hot, then reduce the power
> > gradually if possible, otherwise, just shut off the welder and let the
> > tubing cool naturally.
> >
> > A torch will work, but the arc-welder seems like it would be quicker,
more
> > uniform heating, and more interesting.
> > --Steve
> > ----- Original Message -----
> > From: "Tesla list" <tesla-at-pupman-dot-com>
> > To: <tesla-at-pupman-dot-com>
> > Sent: Sunday, November 25, 2001 10:00 AM
> > Subject: Re: My Primary Coil disaster
> >
> >
> > > Original poster: "Bob Bozarth by way of Terry Fritz
> <twftesla-at-qwest-dot-net>"
> > <jbdetails-at-prodigy-dot-net>
> > >
> > >     Due to similar problems I'm sure happen to many "coilers", does
> > anybody
> > > out there know how to anneal copper? I've seen aluminum annealed using
> > > acetylene, but not sure of the process. I noticed in an earlier post
to
> > this
> > > thread Ed Phillips said something about annealing copper with a torch.
> > > Personally, I would be really interested to hear some details on the
> > > subject. Any help there Ed?
> > >     Thanks,
> > >         Bob Bozarth
> > >         Experimenter
> > >
> > >
> > >
> >
> >
> >
> >
>
>
>
>