Re: Re:Copper toroid

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

Original poster: "Richard Modistach" <hambone-at-dodo-dot-com.au> 

having worked large amounts of copper plate, bar and pipe,
dipping it in warer does nothing for the annealing process,
it mearly cools it down quick so one can get on with working it,
heat it till it just starts to glow, once it reaches that stage the
annealing is complete and how it is cooled is irrelivant.
mechanical working tempers the copper quickly, so sometimes
re-annealing is required whilst working into shape. especially
if back shaping or stage drawing is done.

regards
richard
aus



----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, May 12, 2004 7:57 AM
Subject: Re:Copper toroid


 > Original poster: "acmdq" <acmdq-at-uol-dot-com.br>
 >
 >  > Original poster: Cody Carse <cac619-at-earthlink-dot-net>
 >  >
 >  > Does anyone forsee any problems with using copper as the mat
 > erial for my
 >  > toroid. I found some thin copper sheets in my garage I would
 >   like to make a
 >  > toroid out of. I have never seen it used but maybe that's ju
 > st because Al
 >  > is cheaper. Thanks
 >
 > No problem. If you will use spinning, copper is harder to
 > work than aluminum, but not a big problem once you learn
 > how to anneal it (heat until it starts to change color and
 > dip it quickly in water). You can also make a segmented
 > toroid soldering sections, but this would be quite difficult.
 >
 > Antonio Carlos M. de Queiroz
 >
 >
 >
 >
 >
 >