Thread: Nutless wonder
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Winston Winston is offline
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Default Nutless wonder

klem kedidelhopper wrote:
I saw something in an auto repair magazine the other day that really
intrigued me. This was a coil of some sort, (and these come in
different sizes), that you put over a rusted nut. It claims to heat
the nut to cherry red apparently by induction thereby facilitating its
removal. This would replace a torch for instance and would be a lot
safer when working around a plastic gas tank. The machine that these
probes plug into is very expensive but you can buy a set of these
different size probes for under 200.00 Is anyone familiar with this
type of equipment, and do you know if it might be possible to
construct a generic version of the machine that energizes the probes
to heat the nuts? What is actually happening here? Thanks, Lenny


The way I misunderstand it, eddy currents inductively
induced in the target dissipate power because of resistance.

http://en.wikipedia.org/wiki/Induction_heating

http://blog.makezine.com/2008/03/25/...ction-heating/
http://hackedgadgets.com/2008/11/25/...uction-heater/
http://www.fluxeon.com/Roy1200open.html

Very nifty.

--Winston