hho safety

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Uploaded by on Feb 1, 2009

just anothe hho video that may help some people avoid flashback and to see the power of the smaller hho torches. using the h2-drytube minitorch @ 250 watts 3 LPM.

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Uploader Comments (woodypc35)

  • love that torch ... thing kicks some butt ...

    I think the weld is made brittle from the exposure to hydrogen ... I have done some experimentation with a few inert gas mixes that seem to have some promise, but my skill at welding is so primitive that I am not sure it is effective ... might be something you would want to try ...

  • thanks, the new drytube design really kicks out some gas.

    I have heard of bubbling through acetone or other solvents. but like you, im am not a professional welder...

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  • @mbaqader yes.

  • is it possible to use it for cars instsde of fuel?

  • Well, you wonder if brazing would work, but suspect that it would, based on your PB/SN solderinig. Sad to say, but PB/SN soldering is actually brazing. Not with bronze, but with PB/SN.

    Soldering is fusing two similar metals together. Brazing is no more than "metal glue", wether it is bronze in between two iron pieces or PB/SN in between two copper (or copper made, like bronze or brass) parts.

    :O))

  • Try welding regular mild steel, not zinc coated screws. Zinc messes up a weld. I'd like to see that...

  • Hydrogen imbrittlement.

  • Part 2:

    C) For good metal welding the flame contains to much oxygen; you are oxidizing the weld you may solve this by producing the gasses separately, and apply to the tip a mix with up to 5 times more H2.

    Soldering works great but therefore is this super hot flame a bit overkill.

    For doing juwelery it's fine.

    Also for plastic flame-polishing (it's sootless).

    ...and turbo patato cannons. ;-)

    Keep on bubbling.

  • Part 1:

    Good vid, underlining the safety isues,

    can't been done enough.

    You can not weld those screws, because :

    A) They seemed galvanized.

    B) Hydroxy is not the best gasmix to weld, the flame is very hot but the energy content is low, therefor some hydroxy welders-snake- oil-salesmen used an extra bubbler with an alcohol, like methanol, that will also give the colorless flame a visable color.

  • things I have tried in the bubbler that got what looked like interesting results when casually viewed were, rubbing alcohol, mineral oil, xylene and carbonated water ... inert gases I have attempted that produced some interesting results are argon, nitrogen and carbon dioxide ... maybe some afternoon when you got nuthin' else to do ???

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