Gilded Posted September 20, 2004 Share Posted September 20, 2004 You're not steering me wrong? About blowing myself up perhaps with unstable aluminum plastic-like explosives? Link to comment Share on other sites More sharing options...
boris_73 Posted September 20, 2004 Share Posted September 20, 2004 why what do you want to make with it anyway Link to comment Share on other sites More sharing options...
budullewraagh Posted September 20, 2004 Share Posted September 20, 2004 hah. i would imagine he'd be up for some thermites Link to comment Share on other sites More sharing options...
coquina Posted September 20, 2004 Share Posted September 20, 2004 Trust me Gilded, I'm not steering you wrong. And geez people, it's not hard to re-dress the stone. In about 30 seconds you're going to have globs of aluminum melted in the wheel - they won't be powder. What comes off the wheel will fly all over the room and be contaminated by the dust that's on the floor. What comes off the wheel will be sparks - in other words, it will be burnt. Will it still perform as you want it to? What in the heck is wrong with spending $7 on a can of already powdered aluminum? Are you supposed to be making it for a science project? PS - Trust me, I own a machine shop and have worked in the trade for 30 years. Link to comment Share on other sites More sharing options...
boris_73 Posted September 20, 2004 Share Posted September 20, 2004 well why would he be blowing him self up even if it was plasticy aluminium as he said Link to comment Share on other sites More sharing options...
Gilded Posted September 21, 2004 Share Posted September 21, 2004 No I was just kidding, as some aluminum powder made stuff tends to be... rather unstable, if you will. I think I'm going to start with thermites; you can't hurt yourself with those unless you light them on your foot or something. Link to comment Share on other sites More sharing options...
boris_73 Posted September 21, 2004 Share Posted September 21, 2004 or you stand to close because they shoot out molten iron at you Link to comment Share on other sites More sharing options...
jsatan Posted September 21, 2004 Share Posted September 21, 2004 You can get alu from deodorant cans over here in the UK, try the same where you come from. Couldn’t you do this chemically? Like put it in some sulphuric acid then do a displacement reaction to get it out? Just and idea, just leaving it to melt away seems easier to me, lol. Lazy bones. Link to comment Share on other sites More sharing options...
Primarygun Posted September 21, 2004 Share Posted September 21, 2004 Does everyone have an experience of burning an aluminium foil? Aluminium powder burn and sliver sparks are observed,but is not for aluminium foil. Is aluminium foil=tin? Link to comment Share on other sites More sharing options...
coquina Posted September 21, 2004 Share Posted September 21, 2004 http://www.foilcenter.com/knowledge/indepth.html Here is a site that tells all you ever wanted to know but were afraid to ask about aluminum. Check out the link to the chemical composition. Virtually all the aluminums used in industry are alloys. In the machine shop we use the 6061 alloy most frequently. Link to comment Share on other sites More sharing options...
Gilded Posted September 21, 2004 Share Posted September 21, 2004 It's sad how little use over 99% aluminum, titanium and such have these days. All alloys. Luckily, there are nice men in the world who run pyrotechnics companies. Link to comment Share on other sites More sharing options...
coquina Posted September 21, 2004 Share Posted September 21, 2004 It's sad how little use over 99% aluminum, titanium and such have these days. All alloys. Luckily, there are nice men in the world who run pyrotechnics companies. The materials are much stronger as alloys, and the different alloys of aluminum are made for specific purposes. There is one alloy suitable for welding, one that can be bent without cracking and one that is meant to be used specifically in marine applications because it is corrosion resistant. Link to comment Share on other sites More sharing options...
Lance Posted September 21, 2004 Share Posted September 21, 2004 Does everyone have an experience of burning an aluminium foil?Aluminium powder burn and sliver sparks are observed' date='but is not for aluminium foil. Is aluminium foil=tin?[/quote'] I can’t imagine it being pure tin. Pure tin is brittle. Link to comment Share on other sites More sharing options...
Gilded Posted September 21, 2004 Share Posted September 21, 2004 "The materials are much stronger as alloys, and the different alloys of aluminum are made for specific purposes. There is one alloy suitable for welding, one that can be bent without cracking and one that is meant to be used specifically in marine applications because it is corrosion resistant." Yeah I knew that there are reasons to make alloys, it just makes me sad when people don't use the pure elements in all their glory of... purity. Link to comment Share on other sites More sharing options...
r1dermon Posted September 21, 2004 Share Posted September 21, 2004 dude... i've ordered countless lbs of aluminum powder online at http://www.skylighter.com ...and surprisingly..its pretty easy to get. however, if you plan on making m-80's and such with it, you'll have to purchase the tubes seperately or make your own. because they wont sell potassium perchlorate+aluminum powder+tubes and plugs in the same order or to the same address. Link to comment Share on other sites More sharing options...
budullewraagh Posted September 21, 2004 Share Posted September 21, 2004 heh, lay low now; big brother is probably watching you Link to comment Share on other sites More sharing options...
YT2095 Posted September 22, 2004 Share Posted September 22, 2004 why not just buy some paint grade alu powder? Link to comment Share on other sites More sharing options...
budullewraagh Posted September 22, 2004 Share Posted September 22, 2004 i'd be all over that. how expensive is it? Link to comment Share on other sites More sharing options...
Gilded Posted September 22, 2004 Share Posted September 22, 2004 Me too. How fine is it? Enough for a THERMITE THAT WILL DESTROY ALL EVIL PINE TABLES OUT THERE!? Whoops. Got carried away a bit. Sorry. Link to comment Share on other sites More sharing options...
YT2095 Posted September 22, 2004 Share Posted September 22, 2004 plenty fine enough for thermite, just make sure your ferric oxide is just as fine. as for cost, it`s all depending on where it`s from, but a 250g tin cost me 4.50 quid about 6 year ago, not at all expensive considering that a little goes a LONG WAY! Link to comment Share on other sites More sharing options...
Gilded Posted September 22, 2004 Share Posted September 22, 2004 I wonder if people get suspicious when I go and buy aluminum powder and then go scrape some rust off a car or something. Link to comment Share on other sites More sharing options...
boris_73 Posted September 22, 2004 Share Posted September 22, 2004 would any old paint shop sell aluminium powder or would it be a specialist Link to comment Share on other sites More sharing options...
Gilded Posted September 22, 2004 Share Posted September 22, 2004 I think I'll go and check a local paint shop out tomorrow. The times I've been in such stores, I haven't really seen any aluminum powder. Might be a) not looking carefully enough b) they don't have any. I think it's used in boat painting or something... Link to comment Share on other sites More sharing options...
r1dermon Posted September 22, 2004 Share Posted September 22, 2004 ahh, nothing replaces good german dark aluminum powder...BANG!!! Link to comment Share on other sites More sharing options...
YT2095 Posted September 23, 2004 Share Posted September 23, 2004 yeah, Dark Flake pyro grade ) it`s surprising what difference the extra surface area makes over the normal spheroid type. Link to comment Share on other sites More sharing options...
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