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back purge TIG aluminum pipe

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  • back purge TIG aluminum pipe

    just wondering what everyone uses as a setup for their purge gas. i seem to be running through a lot of argon and not sure if thatís normal. we just have a hose from the regulator plugged into the pipe. iím running about 8-10 cfh.

  • #2
    Sounds like what we do. I either tack a cap to the open ends or seal them with aluminum tape, with small vent hole at one end. Run purge from 6 to 10 cfh. We do mostly stainless pipe and switched to nitrogen gas for purge. Way cheaper than argon. With all day welding we burn thru a purge bottle every 3 to 4 days, the bottle on the welder lasts about 5 days.