Stripping for enameled wire

Discussion in 'DIY' started by Zampotech, Mar 5, 2019.

  1. Zampotech

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    I have to make output transformers sometimes. The most vile part of the job is to remove the varnish from the enameled wires.

    I read a little special literature, worked a little with my head and hands and got a small and convenient tool.

    The work of this tool can be viewed in the video.

     
  2. Priidik

    Priidik Friend

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    Good stuff. Beats the lighter.
     
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  3. Zampotech

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    Much better. Lighter burns varnish. And this device frees copper from varnish. The varnish peels off like a boot from a foot.

    The photo was taken with USB microscope

    [​IMG]
     
  4. Thad E Ginathom

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    It's not a job I had to do as yet, but that looks to be a really neat tool. The kind of tool you really bless if you have an unpleasant job to do more than twice.

    But... Isn't "enamelled" wire enamelled? Another of life's disillusionments?
     
  5. Zampotech

    Zampotech Friend

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    I will answer your question as I understand it. Perhaps I misunderstood him, then you correct me

    I use a wire covered with two layers of heat-resistant varnish. It used to be called lacquered wire. Now called enameled wire. But it's the same thing.
     
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  6. spoony

    spoony Spooky

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    Very nice, are you planning to share how this works?
     
  7. Zampotech

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    The principle of operation is instantaneous heating of a thin surface layer of wire. At the point of contact between the varnish and copper there is a sharp decrease in adhesion and swelling of the lacquer layer. After processing, the varnish is removed from the wire as a separate tube.

    Heating is due to a veri powerful high-frequency magnetic field.

    Recently I manufactured for factory of transformers of a few such devices.

    They look like this

    [​IMG]

    [​IMG]
     
    Last edited: Mar 5, 2019
  8. Priidik

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    Clever. Foucault's currents in skin layer.
     
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  9. spoony

    spoony Spooky

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    Very nice, does this work for very thin braided cables (AWG 30 or so) or cables already connected to an electrodynamic transducer?
     
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  10. Zampotech

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    Stripping works with single enameled wire from 0.2 to 0.5 mm. Can handle wire up to 0.65 mm diameter, but this is not a typical mode.

    Not working with Litz wire and with the wire in the other isolation.

    30 AWG is a wire with a diameter of 0.2546 mm. If this wire is single and enameled, it will work.

    I once made two experimental devices for thick rectangular copper wires. After the sale, my customers fell silent. There are no reviews or complaints. I do not know the fate of these devices. I hope they're all right.
     
    Last edited: Mar 5, 2019
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  11. Thad E Ginathom

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    Thank you. Excuse my ignorance. Whilst I know there is something called enamel paint, enamel, to me, having done some jewellery hobbying, primarily means glass.

    Wow, you made this thing! Respect...

    :bow:
     
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