How does an exploding foil initiator work
WebDuring initiation, the wire heats with the passing current until melting point is reached. The heating rate is high enough that the liquid metal has no time to flow away, and heats … WebOur Exploding Bridge Wire (EBW) contains a lead-free explosive (CLCP) functioned with an ECOSSE PX-1 Firing Set and initiate secondary booster detonation in wireline guns. Exploding bridge wires (EBW) detonators have a small …
How does an exploding foil initiator work
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WebThe term “initiator” defines a fairly broad group of devices that are intended to trigger an energetic material, be it an explosive, propellant, or pyrotechnic. They are the first portion … WebLaunch > Vehicle component > Exploding Foil Initiator Summary AN EXPLODING FOIL INITIATOR (EFI), ALSO KNOWN AS SLAPPER DETONATOR, IS USED TO PROVIDE …
WebJan 7, 2010 · Exploding Foil Initiators (EFIs) provide a safe and reliable means of initiating explosives. They are highly insensitive to mechanical shock and electrical interference, requiring a specific high current pulse for initiation. This allows the use of insensitive secondary explosives, eliminating more sensitive primary explosives. WebJan 1, 2024 · Under the action of a high pulse current, the explosive metal foil completes the transformation of solid, liquid, gas and plasma in a very short time, forming a high-temperature and high-pressure...
WebMay 7, 2024 · Little is known about the shape and curvature of exploding foil initiator (EFI) flyers, especially as they are forming within a finite barrel. This is because the typical barrel materials, such as stainless-steel, hinder observation of the flyer material during flight. WebExploding foil initiators ( EFI ). Technical Notes: 1. The word initiator or igniter is sometimes used in place of the word detonator. 2. For the purpose of 1A007.b. the detonators of concern all utilise a small electrical conductor (bridge, bridge wire, or foil) that explosively vaporises when a fast, high‑current electrical pulse is passed ...
WebJul 14, 2013 · Increasing insensitivity demands on initiation trains in missile systems necessitates utilizing high voltage initiators. Exploding Foil Initiator (EFI), also known as Slapper Detonator, is the well–known high voltage detonator that can only be initiated under the action of large electrical currents. EFI is strictly immune to Electrostatic Discharge …
A narrowed section of the metal then explosively vaporizes when a current pulse passes through it, which shears the mylar foil and the plasma ball pushes it through the hole, accelerating it to very high speed. The impact then detonates the explosive pellet. Diagram of slapper and EBW detonators initiating detonation. See more A slapper detonator, also called exploding foil initiator (EFI), is a detonator developed by Lawrence Livermore National Laboratory, US Patent No. 4,788,913 (Filed 1971, Granted 1988). It is an improvement over the earlier See more • Nuclear weapon design • Triggering sequence See more • Elements of Fission Weapon Design, section 4.1.6.2.2.6 • Modelling and Simulation of Burst Phenomenon in Electrically Exploded Foils See more highland council repairs phone numberWebThe initial shock wave is created by vaporizing a length of a thin wire by an electric discharge. A new development is a slapper detonator, which uses thin plates accelerated by an electrically exploded wire or foil to deliver … highland council renew blue badgeWebSep 12, 2024 · The two requirements are achieved by using what we call an exploding foil initiator (EFI). And the EFI is the fundamental enabling technology for the high voltage, … highland council refuse collection dates 2022WebTo make the specification consistent with the EFI technology and 1316 safety requirements, the proposed changes require statistical analysis testing at temperature extremes, … highland council rent payments onlineWebNov 12, 2014 · Exploding foil initiators ... Simulation results for Nappert’s exploding foil initiator system; 5. Simulation results of the Fraunhofer Ernst-Mach-Institute system; 6. Design analysis; 7. Conclusion; Acknowledgements; References; ... In this work all the physical processes, including their coupling, are modelled using multi-physical models ... highland council refuse binshttp://proceedings.ndia.org/5560/Wednesday/Session_III-A/Nickolin.pdf how is bvd diagnosedWebMar 9, 2024 · The exploding foil initiator provides a new method of multi-point detonation control. It transmits signals through the circuit without requiring complicated safety components and has the advantages of safety, reliability, small size, and promptness, which make it especially suitable for multi-point initiation control when applied to a warhead. how is butylene glycol made