How can I remove copper windings on an armature by soaking it in acetone?

[John1397]

TL;DR

Soak armature to free up windings

What is best way to free up copper windings on armature like maybe soak in acetone?

 

[jrmichler]

I had a summer job once in an electric motor rebuild shop. They baked out the windings in an oven. I don't know the oven temperature, but it would have been hotter than a typical kitchen oven. And it had a means of dealing with the smoke from the burned insulation.

Maybe use the self cleaning cycle of a self cleaning kitchen oven? Do it outside because of the smoke.

 

[Baluncore]

Armatures are often wound with a two layer insulation. The outer layer is a thermal-set epoxy or lacquer. There will be a temperature at which the glue is pyrolysed. That is usually between 150° C and 250° C.

You will probably need to remove the commutator before heating.