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[metalshapers] 1790 pressure vessel

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  • Jim Peck
    An inner tube has a Schrader valve to hold air. I wonder how the flask is sealed? [CaptonZap@aol.com] According to the article, the flask was formed, riveted,
    Message 1 of 5 , Feb 14, 2013
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      An inner tube has a Schrader valve to hold air. I wonder how the flask is sealed?


      [CaptonZap@...] According to the article, the flask was formed, riveted, and then submersed in a molten copper base metal, which
      sealed the seam, and coated the inside, as well as the outside surfaces, which prevented condensation rusting on the inside of the
      flask. Like hot dip galvanizing.
       
      Clever.
       
      CZ
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