[Jewelry making - Article 00538] - Re: [Orchid] Sizing ring with bezel-set stone

[Tpdooley]

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Hello Linda!

    There are a few products out there for heat sink purposes. What
    you found is prevailing jewelers' technique, I would say.
    However, many jewelers do these type of sizings in their
    fingers. Sure it gets hot; your fingers can take 140 degrees for
    a few seconds too. Your hot water  AT  your tap is probably close
    to that. If you haven't done it or seen it done, try and get an
    experienced craftsman to show you. 

    If you want to do it yourself, here goes. Coat the ring with
    boric acid dip. Let cool. Create a little tension in the ring,
    and slip a piece of solder between the seem. The full length of
    the seem. You can place the solder on top of the seem if you'd
    rather not create tension. Hold it in your thumb and two fingers
    and wet the stone and your fingers in cold water. You did flux
    it, right? Use a large tip with a hole about 1.2 mm or so. So
    you can generate a large hot flame. Without seeing the piece
    there ids no way to judge the flame size or intensity. Generally
    the flame is 5 to 8 inches long, and an oxidizing flame. If you
    use too much oxygen, therefore, more temp, you could fudge
    (melt) the area. You could also burn your flux, therefore
    eliminating its' assistance in flowing the solder. You do have
    several advantages, you have cold water right there. You can
    quench if it gets to hot and reflux. 

    If were talking silver, that requires more heat and is more
    difficult. Yuk! 

    If you had a jeweler who could show you that would be best. 

										
	Good luck,					
	Tim


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