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April 23, 2019, 12:37:55 am
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Gold & Butane

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Author Topic: Gold & Butane  (Read 254 times)
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« on: April 06, 2015, 12:58:16 pm »

So far I've only soldered silver with a butane torch. Because you have to heat the entire piece evenly with silver I can only do smaller pieces with butane. 

What about gold?  Does butane get hot enough to solder gold? 

And no, at this point I cannot get get anything other than butane because my home insurance will not allow it and right now I can't afford to move my insurnace.
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« Reply #1 on: April 06, 2015, 01:30:54 pm »

I would think that if your patient and don't get in a rush you should be able to solder the gold. I have found that higher karat gold solders nearly the same as silver.

All my best ........ Danny
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« Reply #2 on: April 06, 2015, 03:37:33 pm »

I find gold much easier to solder than silver because the entire piece doesn't have to be heated to reach solder flow temperature.  You concentrate heat near the area you want to join.  I've never used that gas for soldering but a search indicates butane torches can reach up to 2,500 degrees F.  Melting temp of 14K yellow gold is 1,476 degrees and 18KY is 1,620 so butane should easily generate the needed soldering heat since solders flow at lower temps.  It seems to me that a bigger problem may be  flame control, especially when soldering small and delicate pieces.  Very tiny flames are sometimes necessary.  I think it all depends on the kind of work you plan to do.  My mini-torch (oxy-propane) has interchangeable tips that range from a rosebud multi-flame for melting casting metals to a very tiny 1/4-inch-long flame for intricate work. That kind of flexibility is often needed.
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« Reply #3 on: April 06, 2015, 05:05:56 pm »

Thanks!  I may have to just bit the bullet and get some gold to try it.  :)  I can control the flame by adjusting the air flow.
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