[Jewelry making - Article 00122] - Re: [Orchid] Guidance on water torch purchase

[SERVE4GWM]

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Dear Mr. Wooding:

>     I use MEK as the gas booster which, although capable of soldering
>     platinum is not quite hot enough to fuse it. If I had another
>     booster bottle I could fill it with distilled water and then get a
>     flame hot enough. In the meantime I reserve the oxy/propane outfit
>     for that. 

    Thank you for your Orchid posting. I manage North American
    operations for Spirig, the maker of the Spirflame[tm]. Our unit also
    produces large flames for bigger jobs. A water welder, a
    hydrogen/oxygen gas generator is a wonderful way to work. It is
    fairly easy to weld platinum by just changing your booster fluid. 
Just
    clean out the booster tank with hot water, then dry with paper towel.
    Use rubber gloves. Then fill your booster with Methanol alcohol. MEK
    produces a flame temperature of 3,092 degrees F (1,700 C). Methanol
    produces a temperature of 4,982 degrees F (2,700 C). A large
    percentage of our customers (me too) are welding and soldering
    platinum easily, in this way for many years. 

    Putting water in the booster will produce a hotter flame of 5,972
    degrees F (3,300 C). HOWEVER, the flame will become clear, difficult
    to see and work with, and the flame configuration becomes less
    accurate. A good booster system also works as a flashback suppressor
    and by filling with water only, it is far less effective. Methanol in
    a properly designed and maintained booster system insures total
    suppression of a flashback. This is critically important in systems
    which do not have a properly designed flashback protect or (common) 
in
    the handpiece system. There are four commonly used booster fluids
    which regulate flame temperature and flame configuration. If you have
    any questions or I can be of any help, please feel free to contact me
    directly. 

Best Regards,
Gary
Gary W. Miller
www.spirig.org
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