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 Post subject: Transformers
PostPosted: Thu Jan 04, 2018 11:13 pm 

Joined: Sun Aug 03, 2014 2:02 pm
Posts: 23
This question is really not about small transformers but actually larger ones. I have several that i have got the steel taken off from around the copper wire. But is there any easy way or something to soak the copper coils in to get the paper/resin like stuff off the copper to make it worth more than insulated #2?


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 Post subject: Re: Transformers
PostPosted: Fri Jan 05, 2018 3:13 am 

Joined: Tue Feb 03, 2015 6:57 pm
Posts: 4245
Location: Low DOS
Easy, yes. Safe, no.
There are chemical mixes you can research and make on your own.
You can torch it and get carbon copper
You can use a kiln, blast furnace, etc to make a #1 block which will burn off most (nearly all) of the resin, paper etc.

The later two are governed by federal, state, and local laws, and require extensive gas/chem safety knowledge. The first option isn’t a wise acid-base test for beginners. If you don’t know how to refine gold, silver, and nickel; copper can be considerably more difficult than any of those .

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 Post subject: Re: Transformers
PostPosted: Mon Jan 08, 2018 7:26 pm 

Joined: Thu Feb 13, 2014 9:12 am
Posts: 62
The scrap yard I use pays #2 copper currently 2.15 a lb
With the paper or plastic still on them


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