Explosive cartridge

Detonation Rate — 4397m/sec or l4400ft/sec for hand-tamped at density 0,9 unconfined cartridge Explosion Temperature — ignites in 5secs at 480°C Friction Sensitivity — unaffected by steel or fiber shoe... 

French hygroscopicity tests, known as a)Reprise d humidite de l explosif en vrac (Taking up moisture by an explosive in bulk) and b)Reprise d humidite en atmosphere saturee d eau des explosifs encartouches (Taking up moisture by cartridged explosives in atmosphere saturated with water) are described in Ref 4 Refs l)Marshall 2(1917), 416-9 2)Bainett( 1919), 214 3)Davis (1943), 313 4)L.Me dard, MP 33, 325-7 (1951) 5)TM 9-1910(1955), 10-2 6)PATR 1740, Rev 1(1958)... 

This is the name given by the U.S. inventor Acre to his mixture of about 94% ammonium nitrate with 6% fuel oil. This mixture was at first prepared in a primitive manner by the users themselves to obtain a very cheap explosive for open pit mining under dry conditions. As -> ANFO the material has widely displaced the conventional cartridged explosives. 

Group 2 Nitrate/metal/sulphur compositions Compositions with >65% chlorate Black powder Nitrate/boron compositions Burn violently Large firework shells Fuse unprotected signal flares Non-pressed report bullets (bird scarers) Report cartridges (unpacked) Black matches (uncovered) Accelerating single-item explosions... 

Group 3 Nitrate/metal compositions without sulphur Compositions with <35-65% chlorate Compositions with black powder Lead oxide/silicon with >60% lead oxides Perchlorate/metal Burn fast Large firework shells Fuse protected signal flares Pressed report cartridges in primary packagings Quickmatches in transport packagings Waterfalls Silver wheels Volcanoes Black powder delays Burn very violently with single-item explosions... 

Water on Explosive Performance as Measured by The Lidestone Cartridge Case Test , Royal Armament Research and Development Establishment Memo 55, 38/72 (1972) 55) R.J.J. 

P.B. Tweed J.D. Hopper, Study of Loading of MOX-2B Into 20mm Shell and Acceptance Tests of Cartridges Containing Projectiles Filled with this Explosive , PATR 1935 (11 May 1953)... 

In explosives, calcium oxide has been used for many years according to Daniel (Ref 1) in devices such as the Igniter of Jarotimek. This is a device used in blasting operations, and consists of a double cartridge containing compressed CaO in one end and a flammable mixt (usually a mixt of 50% KC103 and 50% mercuric fulminate) in the other end. The flammable end is... 

Besides its use in pyrots, calcium oxide has been used in a number of expl devices such as Jarolunek s igniter, Elliot s Quicklime Explosive , and the various cartridges of Smith and Moore, Arnould, and Steinau (Ref 1). All of these are presented in greater depth above, together with the current usage of the oxide Refs 1) Daniel (1902), 16, 133,134 738 la) T.W. Richards 0. Honigschmid, JACS 32, 1577 (1910) CA 5,840 (1911) 2) E.C. 

High Explosive Gels (up to 30% liq expl) are contained in cartridge casings or shells of polyethyl-... 

Uses. (See also under Perchlorate Explosives) Combustible Cartridge Cases. Cotton cloth is impregnated with a siurry of AP and a monomer in methyl ethyl ketone, the solv evapd, and the monomer cured on a meld to give a combustible cartridge case (Ref 35)... 

Pile Driving Device. Said to have originated in America, this device uses a cartridge of expl placed between the head of a wooden pile and a driving ram. The expin of the charge drives the pile into the ground and simultaneously raises the ram which, upon falling, drives the pile further. This idea was utilized in drop hammers which were explosively, not steam, operated... 

Punshon-Explosive. Patented in 1870 consisted of NC soaked for 12 hrs in a sugar soln, and an oxidizer, such as a nitrate. Another expl, patented by the same inventor in 1875, was a 70% Dynamite contg either peat or toasted peas as absorbants, to which pulverized NC could be added. The third expl patented by Punshon (1880) consisted of nitric and picric acids absorbed on a porous material such as asbestos, and loaded into cartridges which were painted with a mixt of Na silicate and powdered glass Punshon was also the inventor of Qxonite and Victorite (qv)... 

Photo flash bombs and cartridges are pyro technic items which are classified with bombs (Vol 2, B229) because of their explosive effect. The various devices are similar, differing principally in size and the amount of delay. When fired, each photo flash cartridge, after 1, 2, or 4 seconds, produces a flash having a peak intensity of approx 50 million cd with a total output of 5 million cd sec, whereas photoflash bombs generate above 5 x 109 cd... 

Cartridge Initiator Development , NavOrdSta, Indian Head, Md A paper presented at the Annual Pyrotechnics and Explosives Subgroup Meeting of the AmDefPrepAssn, Los Alamos, NM (Oct 1975) 112) J.W, Fronabarger, A... 

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