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Thread: silver brazing

  1. #1

    Can you use 75% Argon 25% Co2 to purge ref lines while silver brazing? This is the gas that mig welders use.

  2. #2
    Join Date
    Nov 2001
    Posts
    1,874
    Co2 is a higher cost then nitrogen,
    Why use it, if it cost more ?

    You don't need the high pressure gas,
    If you try to fail, and succeed.
    Which have you done ?



  3. #3
    Join Date
    Oct 2004
    Posts
    3,400
    Originally posted by pipe threader
    Can you use 75% Argon 25% Co2 to purge ref lines while silver brazing? This is the gas that mig welders use.
    Yes, you can use it, but nitrogen is cheaper.

  4. #4

    silver brazing


    Thank You for your answer toolpusher and bwal2.
    I am not using it. I saw a vet. HVAC serviceman using
    it and was wondering if it would put moister in the syst
    em.

    Thanks


    pipe threader

  5. #5
    Join Date
    Mar 2005
    Location
    burlington county n.j.
    Posts
    9,744
    wouldn't the oxygen in co2 cause oxidation you are trying to eliminate with the nitrogen?

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