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| Soldering oven, another daft idea? |
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| John Hill:
There are a lot of parts in my atmospheric engine project that I need to assemble with a water tight seal. All the parts are mild steel. Due to the available facilities I am considering soft soldering and specifically oven soldering. The idea is to 'tin' the mating surfaces, assemble the bits then heat in an oven so that the solder flows and I get a good seal. Problem: I dont have a suitable oven! Maybe I can make an oven of bricks and mount a hot air gun to blow hot air in and heat everything, gun claims 650C and 2000W. Is this another daft idea? :palm: N.B. I dont want to use a flame to heat as the combustion products foul the solder joins. |
| AussieJimG:
That sounds like a rather clever idea John. I am about to try my hand at one of Jan Ridders' Egg Cup Stirling engines for which he says the crankshaft should be soldered. I had been trying to figure out how to do this without pushing the pieces out of place with the soldering iron. I am still a few weeks away from making the crankshaft but guess what I am going to try. http://madmodder.net/Smileys/default/happy0065.gif Jim |
| bp:
I agree with Jim....a good idea, certainly worth pursuing! My first thought was that it seems similar to a sort of low temperature "dip brazing" for use with al. alloy. From memory soft solder melts at something around 450 degrees C, but solder for electronics is something less I believe. No doubt the temperature range is governed by the makeup of the solder. Certainly worth experimenting with. Best of luck cheers Bill |
| 75Plus:
60/40 solder, as used on electronics, melts at around 370 degrees F which is well inside the range of kitchen ovens. Joe |
| Lew_Merrick_PE:
--- Quote from: 75Plus on October 06, 2014, 11:22:15 AM ---60/40 solder, as used on electronics, melts at around 370 degrees F which is well inside the range of kitchen ovens. --- End quote --- And failing that, using two oven elements (which can usually withstand 800°F for quite a while) mounted inside a refractory brick enclosure will often do the trick. Wiring 220 VAC (assuming U.S. oven elements) requires attention to detail but is not too hard. ??? |
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