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Abstrakty
This paper presents a method for pressing a small shaped piece with a diaphragm made from light inertial material, intended for use as a tandem shaped charge principal warhead. The general requirements for the pressing moulds are shown. The pressing method for the small shaped piece is described with the use of the high explosive OKFOL. It concerns the pressed explosive mass, the method of mould lubrication, pressing pressure, the number of pressing steps, the method of removal of the pressed small shaped piece from the mould, and the proportions of the granulated to crushed OKFOL and its density after pressing. Very high, measured densities of the pressed OKFOL in the small shaped piece at different cross-sections (bottom − top of the shaped piece) 1.761-1.813 g/cm3, i.e. (95.5-98.3)% of the calculated theoretical density of 1.84 g/cm3 were obtained for the explosive with a phlegmatizer content of 3.6%. During the trials the following damage can occur: cracking along the side of the cone, breaking off of some of the cylinder surface, breaking away of the shaped piece bottom during extraction. The accuracy of the shaped pieces produced, particularly their coaxiality, ensured the proper function of the tandem shaped charge warhead.
Rocznik
Tom
Strony
439--452
Opis fizyczny
Bibliogr. 17 poz., rys.
Twórcy
autor
- Military Institute of Armament Technology, 7 Wyszyńskiego St., 05-220 Zielonka, Poland
Bibliografia
- [1] Wiśniewski A., Armours, Construction, Designing and Testing (Pancerze, budowa, projektowanie i badanie) (in Polish), Wydawnictwa Naukowo-Techniczne, Warsaw, 2001.
- [2] Wiśniewski A., Żurowski W., Ammunition and Armours (Amunicja i pancerze) (in Polish), Wydawnictwo Politechniki Radomskiej, Radom, 2001.
- [3] Wiśniewski A., Włodarczyk E., Zubik T., Habaj W., Podgórzak P., Protection of the Fighting Vehicles (Ochrona wozów bojowych) (in Polish), Problemy Techniki Uzbrojenia, 2003, 89(4), 3-182.
- [4] Nowak H., Wiśniewski A., Włodarczyk E., Theoretical Basis for the Construction of Tandem Shaped Charges (in Polish), Problemy Techniki Uzbrojenia i Radiolokacji, 1980, 34, 3-14.
- [5] Włodarczyk E., Wiśniewski A., A Shaped Charge Diaphragm Effect Upon Propagation of the Wave Front of the Side Decompression of the Gaseous Products of Detonation (GPD) (in Polish), Biuletyn WAT, 1981, 9, 3-17.
- [6] Włodarczyk E., Wiśniewski A., About Propagation of the Wave Front of the Side Decompression of the Gaseous Products of Detonation in a Shaped Charge (in Polish), Mechanika Teoretyczna Stosowana, 1984, 22(1/2), 41-52.
- [7] Wiśniewski A., Podgórzak P., Research of Penetration Abilities of RHA Armour Protected with ERAWA Armour by the Panzerfaust 3-IT Grenade Launcher (in Polish), Problemy Techniki Uzbrojenia, 2001, 77, 17-26.
- [8] Wiśniewski A., Podgórzak P., Research Results on Precursor of the Tandem Shaped Charge Projectile Model, Problemy Techniki Uzbrojenia, 2005, 94, 31-38.
- [9] Wiśniewski A., Elaboration of Theoretical and Technological Basis for Design of the Tandem Shaped Charge Warhead Model, Intended for Destruction of Armour Protected by Reactive Cassettes (in Polish), Report, KBN Research project, No. 0 T00A 038 19, 2003.
- [10] Wiśniewski A., Influence of Some Parameters of the Tandem Shaped Charge Warhead Model on the Perforating Capability of Armour Protected by Reactive Cassettes (in Polish), Report, MNiI Project No. 0 T00B 012 26, 2005.
- [11] Kumar A.S., Samudre S.S., Waghmare N.G., Gharia J.S., New Pressing Technique for Preparation of Small Calibre Shaped Charges, Defence Science Journal, 1995, 45(1), 51-54.
- [12] Saßmannshausen U., Essig W., Osswald T.A., The Density Distribution in Pressed Charges. An Analytical Approach, Propellants Explos. Pyrotech., 1989, 14(1), 24-27.
- [13] Fedoroff B.T., Sheffield O.E., Encyclopedia of Explosives and Related Items, PATR 2700, Picatiny Arsenal, Dover, New Jersey, US, Vol. 2, 1975, 48-49.
- [14] Walter W.P., Zukas J.A., Fundamentals of Shaped Charges, Wiley-inter Science Publisher, New York, 1989.
- [15] Scheidehar A.W., Jacoby K., Becker J., Reverse Engineering as a Method for Designing Warheads, 10th International Symposium on Ballistics, 1987, Vol. II, 1-10.
- [16] Cumming A.S., Collaboration on Pressable Explosives for Shaped Charges − A European Success Story, Propellants Explos. Pyrotech., 1999, 24, 46-49.
- [17] Branch standard OKFOŁ OST W 84-1025-74 (in Polish), Soviet Union, 1975.
Typ dokumentu
Bibliografia
Identyfikator YADDA
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