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Thread: Grounding HF plasma torch

  1. #25
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    Default Re: Grounding HF plasma torch

    Pilot arc may still have HF start. I think it may be a bit easier to shield than non-pilot arc, as the return path for the pilot arc is in the torch head.
    What you want is blowback start, which I think is always pilot arc. Blowback doesn't use HF, so much easier to deal with as far as EMI goes.



  2. #26
    *Registered User* Bradnicent's Avatar
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    Default Re: Grounding HF plasma torch

    What exactly is blowback and how does it work?


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  3. #27
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    Default Re: Grounding HF plasma torch

    Quote Originally Posted by Bradnicent View Post
    What exactly is blowback and how does it work?
    The arc is started by shorting the electrodes in the torch head then the air pressure "blows back" the contacts apart so the arc transfers to the material

    Rod Webster
    www.vehiclemods.net.au


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Grounding HF plasma torch

Grounding HF plasma torch