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Pyrotechnic gerbs used in the entertainment industry Pyrotechnics is the science and craft of creating such things as fireworks , safety matches , oxygen candles, explosive bolts and other fasteners , parts of automotive airbags , as well as gas-pressure blasting in mining, quarrying, and demolition.
The devices burn at a high temperature (as hot as 1000°C to 1600°C, or 1800°F to 3000°F), depending on the fuel and oxidizer used, more than sufficient to cause severe skin burns or ignite clothing. [12] Safety experts recommend that adults ensure children who handle sparklers be properly warned, supervised and wearing non-flammable ...
Pyrotechnic heat sources are often used for activation of thermal batteries, where they serve to melt the electrolyte. There are two main types of design. There are two main types of design. One uses a fuze strip (containing barium chromate and powdered zirconium metal in a ceramic paper) along the edge of the heat pellets to initiate burning.
Pyrotechnic initiators are often controlled electrically (called electro-pyrotechnic initiators), e.g. using a heated bridgewire or a bridge resistor. They are somewhat similar to blasting caps or other detonators, but they differ in that there is no intention to produce a shock wave. An example of such pyrotechnic initiator is an electric match.
A pyrotechnic valve, also explosive actuated valve, short pyro valve or pyrovalve is a one time use propulsion component often used to control propellant or pressurant systems aboard spacecraft or space probes. The device is activated by an electric signal, upon which one or several small explosive charges are ignited.
A basic pyrotechnic device. A gerb is a type of firework which produces a jet of sparks, usually lasting between 15 and 60 seconds.It is a thick-walled tube filled with pyrotechnic composition and possessing a choke, which is a narrowing in the tube.
A pyrotechnic fastener (also called an explosive bolt, or pyro, within context) is a fastener, usually a nut or bolt, that incorporates a pyrotechnic charge that can be initiated remotely. One or more explosive charges embedded within the bolt are typically activated by an electric current, and the charge breaks the bolt into two or more pieces.
However, when being specific (and in particular in a military context), the term fuse [1] describes a simple pyrotechnic initiating device, like the cord on a firecracker whereas the term fuze [2] [unreliable source?] [3] [4] is used when referring to a more sophisticated ignition device incorporating mechanical and/or electronic components ...