[Jewelry making - Article 01035] - Re: [Orchid] Still more torch questions

[Jim Zimmerman]

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Hi all,

    As it was taught to me. Acetylene is dissolved into acetone. To make
    stable. The tanks are filled with a buffer either pith  or asbestos
    to act as a shock absorber. 

    Try rapping the side of a Acetylene tank you will get a thud. Then
    rap a Oxygen tank and it will ring like a bell. They are hollow. The
    acetone and the pith separate the acetylene molecules. When you open
    the valve the effervesces off to supply you with acetylene(like a
    bottle of pop with bubble rising to top.) The idea here is not to
    let off to much into the regulator. Over 15psi is explosive. Really.
    No kidding. In welding classes they love to show you the bad results
    in the form of exploded valves. My last suggestion is to err on the
    side of the angels and not take chances. 

Jim Zimmerman
jzim AT www.hay.net
http://www.handengravingcanada.com

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