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Posted: 3/30/2009 7:14:16 PM EDT
| Will a propane torch get hot enough to melt 1200 degree silver solder paste?I know a MAPP torch will . I want to add a Phantom Flashhider/Muzzle break on a 14.5 inch barrel. NO ! I don't want to pin it ! |
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It will work, but it will take forever to get up to the right temp… You need a Mapp gas / Air Turbo Torch… Like this MAPP GAS TURBO TORCH Standard torches take too long to get up to the proper heat. I think home depot sells an “extreme heat” map gas torch that is a “turbo torch” It mixes the air and the Mapp gas in a “vortex” or “spiral” to achieve the higher temp faster. |
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Quoted:
It will work, but it will take forever to get up to the right temp… You need a Mapp gas / Air Turbo Torch… Like this MAPP GAS TURBO TORCH Standard torches take too long to get up to the proper heat. I think home depot sells an “extreme heat” map gas torch that is a “turbo torch” It mixes the air and the Mapp gas in a “vortex” or “spiral” to achieve the higher temp faster. So it will work with propane but it will take longer to heat up right ?How can you tell if you have reached the correct temperature.?I've read somewhere that the solder paste will oozzz out of the threads when it's reached the correct temperature.I know the MAPP torch would be better I just don' want the added expense of buying A MAPP torch when I already have a propane torch.Right now I have more time than money 
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I assume you'll have to upper in a vise anyway to time the FH. Just leave it in there.
Clean/degrease. Apply solder/flux. I keep it off the front 1/8" or so because I'm paraniod about it running into my barrel. Install/time FH. Apply heat stop on the barrel and front of the FH. Use a brazing flame and heat from the bottom up until FH nut gets cherry red and you see solder flow into joint. You have to be out of direct sunlight to see the red color. Let cool. Do not quench. Test your handiwork with a wrench. No, really TEST it. Crank down on that sucker. If you did it right it won't budge. Think about how the ATF would test it. Now test it again. Clean/oil. Shoot. Hope that helps. It's really quick and easy. If you do it right there will be no discoloration. |
| If you use the brazing paste from brownells you don’t have to worry about it flowing anywhere. Apply the brazing paste (pulverized silver suspended in flux paste) to the threads like lock-tite, install FH, heat till cherry red, let it air cool, test with wrench, done. |
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You can use it, but you don’t need it... it will be fine without it... just remember to let it "air cool".
DO NOT under any circumstances quench it in oil or water or anything else; Doing that will make the metal brittle and that will make for a bad day with a rifle barrel. And no it will not hurt the Parkerizing, but it will smoke a “paint on” finish like Duracoat or similar, so solder it before you finish it with a “paint on” type finish, but if its just parkerized it will be fine. |
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