[Jewelry making - Article 00476] - [Orchid] Soldering with low oxy cylinder

[Todd Welti]

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    I have just found another possible cause for soldering problems. I
    was trying to do a fairly simple solder and having problems with the
    (paste) solder not wanting to melt, using propant and oxygen. I was
    just thinking that some days the solder Gods are with me and some
    days not, when I noticed something. I noticed that I had to turn up
    the oxygen valve more than usual to get the proper looking flame. I
    thought nothing of it at first, because when I did turn up the oxy
    more, the flame did look about right. I just thought that the
    cylinder was getting low and I'd have to get a new one soon. Then I
    thought I should just go ahead and switch it. When I did, the solder
    melted and flowed beautifully. It was obvious that I was not getting
    enough heat before. I'm just mentioning it because there was still
    enough oxygen in the cylinder to get a proper looking flame, but
    there was apparently little heat in it. Isn't that curious... 

Todd Welti
Living Color Opal and Intarsia
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