Firecrackers
#1
Posted 23 March 2007 - 02:44 PM
ps: the contents was made out of numerous small firecrackers broken open and emptied.
Thanks.
#2
Posted 23 March 2007 - 03:07 PM
Stop taking apart ready made fireworks, and start reading a few books and this forum. Learn the basics before attempting to make even the most basic of fireworks. You certainly shouldnt be making firecrackers at this stage.
This is very good advise - Take it!
#3
Posted 23 March 2007 - 03:13 PM
start with BP/ small fountains first there relatively easy and alot more interesting than firecrackers
regards
dean
Edited by portfire, 23 March 2007 - 03:23 PM.
#4
Posted 23 March 2007 - 03:19 PM
Although i will take your advice and read up some threads on these forums
#5
Posted 23 March 2007 - 10:15 PM
#6
Posted 24 March 2007 - 12:02 PM
The reason your gadget didn't work should be easy to work out once you have learnt a bit about how fireworks work, like confinement and burn rate. The contents of commercial fireworks can be surprising and dangerous sometimes, as you don't know what they are until you have lit them.
Read up on some things. Have you looked at Passfire.com? Then maybe try making your own black powder perhaps, and work up from there, pressing it into a tube to make a fountain or something.
You then know what's in it, and have a more educated guess as to what it will do.
#7
Posted 25 March 2007 - 02:53 AM
#8
Posted 02 April 2007 - 05:19 AM
#9
Posted 02 April 2007 - 07:31 AM
I would guess for an explosion you would need no air to escape through one direct location but instead exert equal force upon the entire casing, causing the explosion.
In my experience if the end plug is strong enough and a lot of pressure is needed to burst it out you would still get a report. Obviously not as loud as a entire destruction of the casing but for that i'm geussing you need good flash powder. Black powder normally just will pop out of the weakest spot in the casing.
#10
Posted 02 April 2007 - 08:08 AM
Black powder normally just will pop out of the weakest spot in the casing.
Flash does the same but due to its high velocity turn the whole casing into "a weak part". Its definately not true that black powdern does only pop out the weakest spots in a tube or whatever.
If you take good black powder, use proper end plugs glued in with white glue, even the strongest cardboard tubes "explode" into pieces
#11
Posted 03 April 2007 - 12:43 PM
and to address Steven's comment, i actually did do that the first time i tried lol. The clay and plug was mixing into the flash powder and there was no iginition at all lol
#12
Posted 03 April 2007 - 04:43 PM
Hope this helps. And let me remind you, this is common sense.
#13
Posted 03 April 2007 - 05:16 PM
Anyone primarily making ground salutes to me has no place in pyro to begin with. However anyone advocating leeching flash powder from fire crackers, and then igniting it with quickmatch is just waiting for Darwinism to catch up with him.
#14
Posted 03 April 2007 - 05:43 PM
And saying you dont need much knowlage about pyrotechnics makes me laugh, as you dont have alot of knowlage and dont know the basic terms.
Ok, I suggest you do some serious reading on pyrotechnics before advising members on dodgy procedures.
Just my 2 pence
#15
Posted 03 April 2007 - 06:33 PM
Seriously though, unknown compositions extracted from fireworks when mixed with others may react violently and without provocation- e.g. sulphur and chlorate, etc. Mix two compsositions together you have a new comp. of unknown characteristics or sensitivity.
Whilst I would feel happy to handle a Kilo of BP, I would not relish doing so with 10g of another.
Be careful.
1 user(s) are reading this topic
0 members, 1 guests, 0 anonymous users