RE: Dissolve Xfmr laminations

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

Original poster: "Loudner, Godfrey by way of Terry Fritz <twftesla-at-qwest-dot-net>" <gloudner-at-SINTE.EDU>

Hi Daniel

Cutting across laminations produce stresses which disrupts the orientation
of the magnetic grains. Then the laminations would have to be heated and the
grains reoriented. I have no idea how this is done at the factory. I have no
idea how much the disorientation would affect transformer or inductor
performance. This might be something to think about. 

Godfrey Loudner  

> -----Original Message-----
> From:	Tesla list [SMTP:tesla-at-pupman-dot-com]
> Sent:	Friday, January 18, 2002 8:23 AM
> To:	tesla-at-pupman-dot-com
> Subject:	Re: Dissolve Xfmr laminations
> 
> Original poster: "Luc by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <ludev-at-videotron.ca>
> 
> Hi Daniel,
> 
> Try methanol to be sure some time it could melt varnish that
> other solvent couldn't melt.
> 
> An other solution is to go to a machine shop and have your
> transformer precision saw in "E" and "I".
> 
> 
> Cheers,
> 
> Luc Benard   
> 
> Tesla list wrote:
> > 
> > Original poster: "Daniel Hess by way of Terry Fritz
> <twftesla-at-qwest-dot-net>"
> <dhess1-at-us.ibm-dot-com>
> > 
> > Forgive me if this has been discussed on the list previously but does
> > anyone know what will dissolve the stuff that they use to glue
> transformer
> > laminations together with? I've recently come across two large power
> > transformers that I want to disassemble and rebuild as a current
> limiting
> > inductor for my pig.
> > 
> > The transformers look as if they were literally dipped in the stuff;
> Root
> > beer color and is brittle. Chips off easily. I've tried acetone, lacquer
> > thinner and mineral spirits but this stuff just laughs at these
> solvents.
> > I'm tempted to invest in a five gallon pail of Berryman's B-12 Chemdip
> > (carburetor cleaner) but I'd hate to invest $90.00 just to find that it
> > won't work either.
> > 
> > My goal is to reassemble the laminations in an 'E' config with an 'I'
> > plate, separated by a plastic shim to provide current adjustment.
> > 
> > Daniel
> 
>