[Jewelry making - Article 00453] - Re: [Orchid] Soldering with hydrogen

[SERVE4GWM]

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Dear Ray:

    It should be noted, I work for Spirig Advanced Technologies, Inc.
    which is the foremost supplier of hydrogen/oxygen gas generators
    world wide. Several thousand of our gas generators are operating
    around the world every day, mostly in industrial and automated
    applications. We also have a good number of very pleased "jewelry"
    customers. 

    I grew up in the jewelry industry and over the years worked my way
    through a series of different bottled gas combinations, finally
    settling on hydrogen/oxygen tanks as the best and cleanest for my
    torch work and for most of my torch casting. Your local gas supplier
    can set this up for you. For bench work I found this gas combination
    to be the easiest to work with due to the axial flame configuration
    of hydrogen/oxygen flames (all of the heat out in front, no heat on
    the sides). Hydrogen as a light gas is safer, dissipates more easily
    than some of the heavier gases. 

    It was always my wish to make my flame as precise and accurate as
    the rest of the tools in my shop. And the weakness of all bottled gas
    systems is the regulation and pressure variance of tanks and
    regulators. So, the next step was the use of a multicell
    hydrogen/oxygen generator. With a multicell generator the gas is
    always a perfect mix of two parts hydrogen to one part oxygen. By
    accurately increasing the small electrical input generating the gas
    the you can easily control the volume of gas to the Millibar
    producing very accurate and repeatable flame sizes. Flame
    temperatures are always plus or minus one degree. As an example we do
    a great deal of fully automated applications (precision, noncontact)
    such as soldering on printed circuit boards. 

    Everything from watches, to automative components, to radios. None
    of these jobs could be done or are done with bottled gas. Although
    occasionally we run into an application which has tried this, is not
    getting consistent results and we will do a retrofit. 

    By generating gas only as needed there is not just a superior more
    consistent flame, but there is also a tremendous operating and
    safety advant age. 

    Although most of our jewelry customers feel their primary benefit is
    the ability to make the same size flame (large to small) repeatedly
    easily and accurately. For control and accuracy, the torch goes from
    being an ax to a scalpel. 

    This is a field I have been working with for many years for a number
    of industries. I would be happy to answer any additional questions
    you might have related to hydrogen/oxygen gases, or torch work,
    bottled or generated if you wanted to contact me directly. There is
    also a lot of excellent gas safety information in the Orchid archive
    supplied by Milt Fischbein in Canada. 

    Best Regards,
    Gary

Gary W. Miller
Sr. Technical Advisor
Spirig Advanced Technologies, Inc.
Technical Division 35 Bronson Road Stratford, CT 06614-3654 U. S. A.
Telephone: 800 499 9933/203 378 5216 Fax: 203 386 1346
www.spirig.com
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