im making a certain object, where i need to attach two pieces of metal. the two pieces are an all metal valve and and all metal tin cup. There will be constant heat in the tin cup , for example a piece of burning coal on top of a piece on tin foil. Now i need something to somehow make the two items airtight and sturdy. which would be better, plumbers solder(the kind u use a torch with) or jbweld? diagram: coal foil cup <--- need something that withstands heat, and is able to seal airtight valve
JB weld may not be heat resistant enough. I'm not sure how well solder would Hold to tin; what may be better is to braze it (oxy-map or oxy-acety torch and bronze brazing rods).
what metals are you using? I assume tin = container rather than the metal... if it is Sn then solder will be good... but it might not like the amount of heat... how hot is this going to get? Also dont use lead solder, since it will be hot you may get lead fumes, lead free solder (95% Sn/0.5 Cu/4% Ag is what I use, there is another without silver content but it costs almost the same.. this makes better joints..) would be better. If your using alu, the only option is to get it welded, you cant solder that... Never used jbweld, but i guess its a filler/plastic/epox type stuff, in which case I doubt it will be able to withstand the temperatures you need.
For brazing, a mapp torch is 40$ and an oxy-mapp torch is 50$. You will burn through a lot of oxy bottles and those are crazy expensive however...
ok, the coals are going to be hookah coals i have like a 5 dollar budget, so im making a head and neck assembly out of a valve and a cup, dunno tin or alu but i know its a soft metal. i only use lead free solder. thanks for the quick replys. isnt jb weld supposed to stand temps up to 500F? tobacco use only
I'd think you would want JBWeld for a situation like this. Solder is meant for electrical conductivity, not as an adhesive. Plumbers solder less so, but it won't hold well under constant heat. If you can't braze it with the appropriate tools (which, while not insanely expensive, certainly won't fit a $5 budget), you'll want a cold-weld epoxy like JBWeld.
thats what i was worried about, solder not holding under constant heat. the solder melted after a min and a half over a lighter, so it might not hold to well. ty everybody
Here's a table of melting points for various metals of interest Solder: ~365F Tin: ~450F Aluminum: ~1221F Bronze: ~1900F Copper: ~1990F If the solder won't take the heat then tin or JB-weld probably won't take it either. If you're using aluminum then it'll have to be TIG welded, otherwise it'll either have to be brazed or welded (MIG, TIG, or electrode would be fine for most metals).
ok, the cup is alu, def not tin because ive put it over fires and such and it is not melting lol. jb weld has a melting point of 500F, so i might as well try or else im gonna have to find a glass head and thats gonna be annoying cuase i gotta cut it out of a coke bottle or something edit: OMG would alumina adhesive work???
well it helps to know what your using it for. Dont use JB weld and would recommend against solder - you seem to have overlooked is safety of the materials. ***Heavy metal poisoning is not nice., but then neither is solvent/plastic fume poisoning.*** The best thing you can make it from, is mild steel. no fumes, will last forever and good for well over 1500c. you can buy arc welders very cheap or get someone to weld it for you What about ceramic? will also have some fumes depending on type, but they should mostly go after a few heating cycles. alumina adheasive, I assume you mean thermal paste type stuff. DONT use that, its not designed for temperatures.
ok, so heres my idea, well actually i made it already but anyway on with the idea. i watercool the glued parts. literally. coal tin foil shisha aluminum cup\\\\\ jbweld\\\\\\\\\\\\\\\ valve thiingy]/////// immerseed under cold watter held by an upsidedown water bottle. (insides still dry) jbweld////////////// pipe converter//// glass bottle will show pic tomorrow afternoon after everything dries
for the record, you can braze aluminum, they also sell alminum welding rods for gas welding mind you its hard to get to work well and it will never be pretty but it will work. I've won a few bets and fixed boats and things by gas welding or brazing aluminum. Anyways you guys are overthinking this, The coal doesn't burn that hot, second of all it's shielded from the metal below via the tin foil (which is aluminum foil nowadays) the majority of the heat from the coal is going to escape upwards with only hot air and smoke going downwards. Next it has to heat up and burn the shisha, In my experience either sodler OR Jbweld would work just fine, and the the metal especially aluminum would act as a giant heat sink, One coal just wouldn't have enough energy to heat up the Jbweld or solder which as this point is quite far below the heat source. I have a feeling, the joint would just be barely outside of the touchable range. Anyways al lthe hookah pipes I've seen have been made out of cheap stainless or generally ceramic or glass. but I have a feeling it won't be getting that hot
thanks for the info, hookah officially done :} working on a glass head now cause im bored. but i broke my daimond bit glass heads are hard to make, i have to use this dam teacup and its like 4mm thick glass
