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Reliable Burst Discs

Post questions and info about hybrid (compressed gas with fuel) powered cannons here. This includes discussion about fuels, ratios, ignition systems, build types, safety, and anything else relevant.
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Reliable Burst Discs

Unread postAuthor: g-$-money » Tue Jun 05, 2007 10:04 am

hello guys i have been looking around for a while and i am ready to move on to a hybrid cannon. i will be using a tank (found at my dads work) for that chamber and a 1 1/4 union.. i was jsut wondering what some good burst discs are for 2x-6x mixes.. thanks for all ur help

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Unread postAuthor: hi » Tue Jun 05, 2007 4:59 pm

alluminum foil.
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Unread postAuthor: CannonBall » Fri Jun 22, 2007 3:42 pm

aluminium foil is rather leaky... im building the 20x mix cannon with a pneumatic cilinder burst pressure 725 bar
tryd alu foil in my union but it leaked as hell :(
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Unread postAuthor: VH_man » Fri Jun 22, 2007 3:58 pm

umm, i somehow doubt that. if you live through the massive explosion that ensues, tell me how fast the projectile went. and i want numbers!!!!!!!! not guesses!!!!

i think you should reasearch a little bit more. 40X is ALOT of power.........
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Unread postAuthor: noname » Fri Jun 22, 2007 6:03 pm

Remind me to laugh at you when you're 20x cannon doesn't work. It's going to need a spark gap the size of an Ebola virus particle, and propane liquefies at merely an 8x or 9x mix. Good luck with that.
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Unread postAuthor: TwitchTheAussie » Fri Jun 22, 2007 9:07 pm

This shall be very interesting indeed though I doubt the 20x mix will work. If you lose any bodily part or function you cannot say we didnt warn you. Also aluminium cans should work.
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Unread postAuthor: CannonBall » Sat Jun 23, 2007 5:10 am

noname wrote:Remind me to laugh at you when you're 20x cannon doesn't work. It's going to need a spark gap the size of an Ebola virus particle, and propane liquefies at merely an 8x or 9x mix. Good luck with that.


I dont use propane. i use gasoline gas.
I work as a petrochemic and i know i can compresss gasoline till 20 bar..
a normal moped compresses air and gasoline to 14 bars 8)
So its going to fire... and for losing arms and legs.. no problem remote ignition :o
Aluminium cans i hope they can held 8 bar for a 9 times mix
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Unread postAuthor: rna_duelers » Sat Jun 23, 2007 5:45 am

You are going to incur Detonation for sure....Ever heard of DDT?There are studies on DDT used for jet engines and studies on them.They use long thin Aluminium tubes with walls 3mm thick,and just from the detonation of that it can warp the aluminium tubes and the amount of Atmospheres they use are no were near 20X....This is no joke Darwin Award Material.
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Unread postAuthor: CannonBall » Sat Jun 23, 2007 6:32 am

Do you know wich chamber i use ....
burst presure 725 bar... 6.5 cm thick stainless steel.. pneumatic cilinder
And dude im a chemist do you think i dont know about ddt ,Does ddt ocurs in a motor cycle? they compress gasoline to 14 bars with air.. and no ddt 8) .. I have my own explosives like annnm, acetonperoxide,mhn,nitrostrach,guncotton,NG
Im a hobby chemist for 5 years now.. so i know alot about explosives :roll:And 20x mix is my goal but ill go up from 4 to 8 to 12 to 16 mix....to 20
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Unread postAuthor: Modderxtrordanare » Sat Jun 23, 2007 4:34 pm

CannonBall wrote:Do you know wich chamber i use ....
burst presure 725 bar... 6.5 cm thick stainless steel.. pneumatic cilinder
And dude im a chemist do you think i dont know about ddt ,Does ddt ocurs in a motor cycle? they compress gasoline to 14 bars with air.. and no ddt 8) .. I have my own explosives like annnm, acetonperoxide,mhn,nitrostrach,guncotton,NG
Im a hobby chemist for 5 years now.. so i know alot about explosives :roll:And 20x mix is my goal but ill go up from 4 to 8 to 12 to 16 mix....to 20


Where did you graduate from?
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Unread postAuthor: CannonBall » Sat Jun 23, 2007 6:50 pm

Proces operater (petro chemic)... and a home studie chemistry.. wy?
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Unread postAuthor: Modderxtrordanare » Sat Jun 23, 2007 7:09 pm

CannonBall wrote:Proces operater (petro chemic)... and a home studie chemistry.. wy?


I meant like what college. I'm studying for a Chemistry major. Just was curious. :)
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Unread postAuthor: Velocity » Sat Jun 23, 2007 7:35 pm

Ignition shouldn't be too difficult... all you need is a lightening rod right :lol:

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Unread postAuthor: CannonBall » Sun Jun 24, 2007 4:42 am

I live in holland.
Proces operater at (zadkine) college
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Unread postAuthor: Scotty » Thu Jun 28, 2007 4:47 am

Whatever science dude chemical head.
Tell us WHEN it works.

Peace
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