FIREWORKS AND PYRO PROJECTS PDF

Apr 2, Tune in for Fireworks! Black powder is the main ingredient in a variety of firework and rocket formulas. You can easily make your own high quality black powder with just a few chemicals and a ball mill. The most common is Gun Powder. Black powder is produced in large quantities commercially, and sold in small 1 pound containers, mainly for use in antique black powder guns. Small fine granulations burn faster and are used in small bore guns, where larger coarser granulations are used for larger bore guns and cannons, and for launching aerial shells out of mortars.

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Apr 2, Tune in for Fireworks! Black powder is the main ingredient in a variety of firework and rocket formulas. You can easily make your own high quality black powder with just a few chemicals and a ball mill. The most common is Gun Powder. Black powder is produced in large quantities commercially, and sold in small 1 pound containers, mainly for use in antique black powder guns. Small fine granulations burn faster and are used in small bore guns, where larger coarser granulations are used for larger bore guns and cannons, and for launching aerial shells out of mortars.

Coarser, granulated black powder that is used in mortars to launch shells, or in Roman Candles to shoot out stars, is sometimes called "lift powder.

It is actually nitrocellulose, and cannot be used in place of black powder. Now, why they needed 5 names to describe one substance is beyond us, but just keep in mind that black powder, gun powder, lift powder, grain powder, and meal powder are really all the same material.

On the other hand, black powder makes a terrible breakfast. Anyway, as far as fireworks are concerned, black powder is used both in its finely powdered form meal powder for coating stars and for mixing in other pyrotechnic formulas, and in its granulated form lift powder for launching shells out of a mortar, or stars out of a Roman Candle.

The mixing process for black powder is just as important as the formula. Black powder MUST be made in a ball mill to work properly. A ball mill is a rotating drum with dozens of lead balls inside. The 3 chemicals are loaded into the ball mill, along with the lead balls, sealed shut and allowed to rotate for anywhere between 1 and 24 hours.

As the ball mill rotates, the lead balls will crush the chemicals together, forcing some of the potassium nitrate into the pores of the charcoal and sulfur. At the same time, the entire mass will be reduced to a super fine powder. The longer the ball mill runs, the stronger the black powder will be.

A general rule of thumb for all pyrotechnic mixtures is "the finer the powder is, the faster it will burn. ONLY black powder can be mixed in a ball mill.

Individual chemicals, however, can also be ball-milled into a fine powder, but the mill must be cleaned before this is done. Once the mill has run for a while, it can be opened and the lead balls separated from the fine meal powder. In short, there is no comparison. Flash powder is a high explosive; a shattering explosive. It converts to a gas so quickly that objects near it, and containers that hold it cannot move out of they way or vent fast enough to release this gas, so they are destroyed into fragments.

Black powder is a low explosive; a heaving explosive. It converts to gas much more slowly than flash powder, and generally pushes things as opposed to fragmenting them. If black powder is used in a small Salute like an M, it will just make a loud "pop" and push out the end plugs. Flash powder in an M will make a loud explosion and fragment the tube into small pieces.

If you were to use flash powder to launch a shell out of a tube, or a bullet out of a gun, it would barely move the shell or bullet, and completely destroy the mortar or gun, probably injuring the operator.

The charcoal you use in a BBQ is not pure charcoal. It contains other materials and chemicals that are designed to keep the material burning evenly and for a long time, but it will make lousy black powder. If you use low quality chemicals, you will undoubtedly get low quality black powder.

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