[Jewelry making - Article 00218] - Re: [Orchid] Ultrasonic cleaner

[jesse brennan]

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    Ultrasonics rely on the principle of induced cavitation  which is
    the formation of small bubbles and there collapse on a surface.
    Cavitation damage can be a major problem in handling fluids that are
    at on near their boiling points.  My experience with cavitation
    damage  is mostly with  cryogenic pumps and boiler feed pumps  and
    pressure reductions of high pressure fluids, not cleaning but the
    methology is  is the same.   Pit formation and crack enlargement
    does occur.  Here are a few descriptions  of the   cleaning
    application of cavitation produced by ultrasonics: 

	http://www.ultrasonics.com
	http://www.pmrsystems.com/page13.html 
	http://www.natclo.com/dp/ultra.html

    Jesse


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