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Old 2011-02-04, 1:17pm
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Quote:
Originally Posted by laserglass View Post
a hothead torch is reducing because the venturi cannot suck enough air into the flame using the flow induced by the propane jet exiting the oriffice. when you have a compressor, you can adjust the flame chemistry to neutral. you won't be able to work boro on a fuel/air torch, but you can easily work any soft glass. most glassblowing furnaces use fuel/air torches. i am not aware of any that use pure oxygen. NONE.
Great info - thanks!
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