Re: induction motor windings

The Daring Dufas wrote:
aemeijers wrote:
Big Al wrote:
"The Daring Dufas" <the-daring-dufas@xxxxxxxxxxxxxx> wrote in message news:ghf457$o2g$1@xxxxxxxxxxxxxxxxxxxxxx
dobro23@xxxxxxxxx wrote:
I'm in a trade where I have access to many appliance type electric
motors. My question is what is the easiest way to remove the windings
from a motor case. I don't care if I damage them as I am only after
the copper. thanks in advance.

adam
Years ago I worked at a company that rewound electric
motors. The way the guys in the motor shop removed the
old windings was to slice off all the loops on one end
then pull the windings out. You might be able to slice
off the small loops with a Dremel tool equipped with a
cut off wheel. Flush cutters may also work for the small
motors.

TDD

Lots easier if you heat them up first. We used an electric oven. Get them as hot as you can and the windings will come out. Many newer motors have Aluminum windings. Check first or you'll waste a lot of time.

Al

Chuckle. Don't inhale the fumes from heated-up old electronics. That is why most 'demanufacturing' operations are offshore now- they violate US smog and OSHA laws. Among the tree-huggers, especially those in the countries where the operations are, it is getting to be a bit of a scandal, the Evil Western Rich Countries offloading hazardous materials to countries not able to properly handle them, and too poor to be picky about it. They sorta have a point.

Seriously, the outgassing from some of those remelted potting compounds is nasty stuff.

--
aem sends...

Back then, the motor shop at the company had a Trico vat.
Trichloroethylene in the vat was heated producing a heavy
vapor that would eat just about anything off the motor
housings when they were dipped into the tank. It was quite
amazing to see the stuff running off the stators when the
hot vapor hit them. It worked so well it was banned then
replaced by something else that was later banned because
it killed helpless little ozones and I don't know what in
the hell is being used now. Now Trichloroethylene is on the
way back, strange world.

TDD
Ever wonder why all the ma'n'pa dry cleaning shops went away? A real close cousin to Trike is what was used for dry cleaning. You used to be able to buy little cans in the grocery stores. Powerful stuff, but the possible downsides are pretty extreme. Who knew?

--
aem sends...
.

Relevant Pages

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