ES2354459T3 - EXPLOSIVE PROJECT. - Google Patents

EXPLOSIVE PROJECT. Download PDF

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Publication number
ES2354459T3
ES2354459T3 ES06806296T ES06806296T ES2354459T3 ES 2354459 T3 ES2354459 T3 ES 2354459T3 ES 06806296 T ES06806296 T ES 06806296T ES 06806296 T ES06806296 T ES 06806296T ES 2354459 T3 ES2354459 T3 ES 2354459T3
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Prior art keywords
projectile
explosive
explosive charge
projectile body
charge
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ES06806296T
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Spanish (es)
Inventor
Almuth Kessler
Paul Wanninger
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Rheinmetall Waffe Munition GmbH
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Rheinmetall Waffe Munition GmbH
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/20—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type
    • F42B12/207—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type characterised by the explosive material or the construction of the high explosive warhead, e.g. insensitive ammunition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
    • F42B12/76—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the casing
    • F42B12/80—Coatings

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Soil Working Implements (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Transplanting Machines (AREA)

Abstract

The invention relates to an explosive projectile (1) having a projectile body (2) in which a cavity (4) is located, which extends in the direction of the longitudinal axis (3) of the projectile and is filled with an explosive charge (5). In order to ensure that the explosive projectile (1) can be fired with a high firing acceleration without any need to be concerned, even when using plastic-bonded insensitive explosive charges, that the high acceleration will lead to an explosion in the weapon barrel, and in order to avoid stress crack formation in the explosive charge, the invention proposes that a silicone intermediate layer (9) be provided at least in subareas between the explosive charge (5) and the inner surface (6) of the projectile body (2), which silicone intermediate layer (9) on the one hand ensures that the explosive charge (5) is adequately fixed in position with respect to the adjacent inner surface (6) of the projectile body (2), and on the other hand absorbs the majority of the stresses between the projectile body (2) and the explosive charge (5) in a temperature shock test, thus preventing crack formation in the explosive charge (5) during tests such as these.

Description

La invención se refiere a un proyectil explosivo, tal y como se describe en el documento EP1698852A1 publicado.  The invention relates to an explosive projectile, as described in published EP1698852A1.

Los proyectiles que se pueden disparar desde armas con cañón están sometidos a elevadas aceleraciones de lanzamiento. Ello es particularmente aplicable a proyectiles explosivos que se 5 pueden disparar desde cañones de tanques, en los que la aceleración de lanzamiento es del orden de 36000 g.  Projectiles that can be fired from guns with guns are subject to high launch accelerations. This is particularly applicable to explosive shells that can be fired from tank cannons, in which the launch acceleration is of the order of 36,000 g.

En aceleraciones de lanzamiento tan elevadas existe el peligro de que en los proyectiles explosivos, la carga explosiva que se encuentra en el interior del proyectil retroceda y se produzca una explosión de la carga explosiva en el cañón del arma correspondiente (efecto “Set back”). 10  At such high launch accelerations there is a danger that in explosive projectiles, the explosive charge inside the projectile will recede and an explosion of the explosive charge will occur in the barrel of the corresponding weapon (“Set back” effect) . 10

En el uso de cargas explosivas asociadas a TNT ya se ha propuesto aplicar una laca en la superficie interior de las paredes del espacio hueco que acoge la carga explosiva, que se une con la carga explosiva después de introducir la carga explosiva en el espacio hueco, y cuida de una fijación de la carga explosiva a la superficie interior del cuerpo del proyectil fabricada por lo general de acero. Con esta medida se evita un retroceso de la carga explosiva en el momento del disparo del proyectil 15 explosivo correspondiente.  In the use of explosive charges associated with TNT it has already been proposed to apply a lacquer on the inner surface of the walls of the hollow space that houses the explosive charge, which joins the explosive charge after introducing the explosive charge into the hollow space, and takes care of fixing the explosive charge to the inner surface of the projectile body, usually made of steel. This measure avoids a recoil of the explosive charge at the time of firing of the corresponding explosive projectile 15.

En cargas explosivas insensibles asociadas a materiales sintéticos no es posible un recubrimiento de fijación mediante una laca de este tipo, debido a que el coeficiente de dilatación de estas cargas explosivas es sustancialmente mayor que el de las cargas asociadas a TNT y aproximadamente 10 veces más alto que el coeficiente de dilatación del acero. En el ensayo de 20 choque por temperatura habitualmente prescrito (por ejemplo, entre -40º y +63ºC) se producirían grietas por tensión en la carga explosiva, en una carga explosiva unida de forma fija directamente con la superficie interior del cuerpo del proyectil (debido a las grandes diferencias entre los coeficientes de dilatación).  In insensitive explosive charges associated with synthetic materials a fixing coating by means of a lacquer of this type is not possible, because the coefficient of expansion of these explosive charges is substantially greater than that of the charges associated with TNT and approximately 10 times higher than the coefficient of expansion of steel. In the normally prescribed temperature shock test (for example, between -40 ° and + 63 ° C), stress cracks in the explosive charge would occur, in an explosive charge fixedly attached directly to the inner surface of the projectile body (due to to the large differences between the expansion coefficients).

Del documento EP1698852A1 publicado se conoce un penetrador, particularmente la 25 conformación del espacio interior de un penetrador de alta velocidad con capas de amortiguación, que es adecuado para reducir en gran medida las ondeas de choque que se producen en el impacto sobre un objetivo duro, y compensar la deformación del material del penetrador. De este modo se debe de reducir el riesgo de una detonación prematura no deseada de la carga explosiva. La capa integrada para ello presenta un grosor que se reduce desde la punta o permanece constante y está 30 integrada a lo largo de toda la superficie interior del espacio interior. La capa amortiguadora puede estar compuesta de plásticos con poros y materiales de goma. También se mencionan como material de recubrimiento cerámicas porosas, espumas, así como metales, también polvo metálico o bolas de metal o de vidrio.  From the published document EP1698852A1 a penetrator is known, particularly the shaping of the interior space of a high speed penetrator with damping layers, which is suitable for greatly reducing the shock waves that occur on impact on a hard target, and compensate for deformation of the penetrator material. This will reduce the risk of an unwanted premature detonation of the explosive charge. The integrated layer for this has a thickness that is reduced from the tip or remains constant and is integrated along the entire interior surface of the interior space. The buffer layer may be composed of plastic with pores and rubber materials. They are also mentioned as porous ceramic coating material, foams, as well as metals, also metal powder or metal or glass balls.

El documento US2276110A se refiere a un proyectil explosivo solicitado con una elevada 35 aceleración de lanzamiento con un liner, mediante el cual se ajusta la energía de la carga explosiva, es decir, ésta se puede reducir. El grosor de la capa del liner se encuentra comprendido entre ½ y 1½ pulgadas. Como material del liner se mencionan escayola, aglutinantes de magnesia, fibras de asbesto así como diferentes rellenos y mezclas. En caso de una granada de mortero se produce por motivos de seguridad una separación completa de la carga explosiva del revestimiento mediante liner 40 de este tipo. Una integración del liner en la zona delantera provoca un contacto directo de la carga explosiva con el revestimiento. Si el revestimiento es de acero, se puede situar un liner en el extremo posterior.  Document US2276110A refers to an explosive projectile requested with a high launch acceleration with a liner, by which the energy of the explosive charge is adjusted, that is, it can be reduced. The thickness of the liner layer is between ½ and 1½ inches. As liner material, plaster, magnesia binders, asbestos fibers as well as different fillers and mixtures are mentioned. In case of a mortar grenade, a complete separation of the explosive charge of the coating by means of liner 40 of this type occurs for safety reasons. An integration of the liner in the front zone causes a direct contact of the explosive charge with the lining. If the lining is made of steel, a liner can be placed at the rear end.

El objeto de la invención es el de ofrecer un proyectil explosivo del tipo mencionado en la introducción, que se pueda disparar con una elevada aceleración de lanzamiento (> 15000 g) y que 45 también en el uso de cargas explosivas insensibles asociadas a materiales sintéticos no haya que temer que debido a la elevada aceleración se pueda producir una explosión en el cañón del arma y se evite también la formación de grietas por tensión en la carga explosiva durante el ensayo de choque por temperatura.  The object of the invention is to offer an explosive projectile of the type mentioned in the introduction, which can be fired with a high acceleration of launch (> 15000 g) and which also in the use of insensitive explosive charges associated with synthetic materials not it must be feared that due to the high acceleration an explosion can occur in the barrel of the weapon and the formation of stress cracks in the explosive charge during the temperature shock test is also avoided.

Este objetivo se resuelve de acuerdo con la invención mediante las características de la 50 reivindicación 1. Las reivindicaciones dependientes publican oras conformaciones especialmente ventajosas de la invención.  This objective is solved according to the invention by the features of claim 1. The dependent claims publish other particularly advantageous conformations of the invention.

La invención descansa básicamente sobre la idea de realizar una separación total entre la carga y la pared interior, o alternativamente minimizar el efecto “Set back” mediante un revestimiento parcial con material antiadherente. Es conocido que la carga explosiva se adhiere con fuerza a las 55  The invention basically rests on the idea of making a total separation between the load and the inner wall, or alternatively minimizing the "Set back" effect by a partial coating with non-stick material. It is known that the explosive charge adheres strongly at 55

superficies metálicas pulidas, particularmente la denominada carga explosiva asociada a material sintético. Por ello se propone una capa de silicona, puesto que ésta representa un medio de separación. De este modo, la adherencia parcial / no adherencia de la carga explosiva permite incluso evitar el efecto “Set back” y controlar el comportamiento variable de dilatación. polished metal surfaces, particularly the so-called explosive charge associated with synthetic material. Therefore, a silicone layer is proposed, since it represents a means of separation. In this way, the partial adhesion / non-adhesion of the explosive charge allows even avoiding the “Set back” effect and controlling the variable expansion behavior.

Para ello se aplica al menos en zonas parciales una capa de silicona entre la carga explosiva 5 y la superficie interior del cuerpo del proyectil, que impide para esta zona una adherencia de la carga explosiva a la superficie interior del proyectil.  For this, at least partial silicone layer is applied between the explosive charge 5 and the inner surface of the projectile body, which prevents adhesion of the explosive charge to the inner surface of the projectile for this area.

Se ha demostrado que para evitar el efecto “Set back” es suficiente por lo general con dotar entre un 30 y un 70% de la superficie interior del cuerpo del proyectil de una capa intermedia de silicona. Sólo en aquellas zonas en las que no está prevista una capa intermedia de silicona, la caga 10 explosiva se adhiere a la superficie interior del cuerpo del proyectil.  It has been shown that in order to avoid the "Set back" effect it is generally sufficient to provide between 30 and 70% of the inner surface of the projectile body with an intermediate silicone layer. Only in those areas where an intermediate silicone layer is not provided, the explosive cage 10 adheres to the inner surface of the projectile body.

Se ha demostrado como ventajoso que la capa intermedia de silicona se encuentre dispuesta en la zona de la superficie interior del espacio hueco enfrentada a la punta del proyectil del proyectil explosivo y/o en la zona de la superficie interior del espacio hueco enfrentada a la parte posterior del proyectil del proyectil explosivo. 15   It has been shown as advantageous that the intermediate silicone layer is disposed in the area of the inner surface of the hollow space facing the projectile tip of the explosive projectile and / or in the area of the inner surface of the hollow space facing the part rear of the explosive projectile projectile. fifteen

El grosor de la capa intermedia de silicona debería de estar comprendido entre 10 y 1000 μm, preferentemente entre 100 y 200 μm, para adherirse con la fuerza suficiente a la pared interior de acero del proyectil.  The thickness of the intermediate silicone layer should be between 10 and 1000 μm, preferably between 100 and 200 μm, to adhere with sufficient force to the inner steel wall of the projectile.

El hecho de que la capa intermedia de silicona esté prevista al menos en zonas parciales entre la carga explosiva y la superficie interior del cuerpo del proyectil, que garantiza por un lado una 20 fijación suficiente de la posición de la carga explosiva con respecto a la superficie interior adyacente del cuerpo del proyectil (2) y por otro lado absorbe una gran parte de las tensiones entre el cuerpo del proyectil y la carga explosiva en el ensayo de choque por temperatura, se evita la formación de grietas en la carga explosiva en caso de disparo.  The fact that the intermediate silicone layer is provided at least in partial areas between the explosive charge and the inner surface of the projectile body, which ensures on the one hand a sufficient fixation of the position of the explosive charge with respect to the surface adjacent interior of the projectile body (2) and on the other hand absorbs a large part of the tensions between the projectile body and the explosive charge in the temperature shock test, the formation of cracks in the explosive charge is avoided in case of Shooting.

Del ejemplo de realización descrito a continuación en base a una figura se deducen otros 25 detalles y ventajas de la invención.  From the embodiment described below based on a figure, other details and advantages of the invention are deduced.

En la fig. se identifica con el número 1 un proyectil explosivo estabilizado rayado que se puede disparar desde la cubierta de un tanque del calibre 155 mm. El proyectil explosivo 1 comprende un cuerpo de proyectil 2 de acero, que dispone de un espacio hueco 4 que se extiende en dirección del eje longitudinal 3 del proyectil explosivo 1. En el espacio hueco 4 se encuentra la carga 30 explosiva 5 insensible asociada a material sintético por sí misma conocida.  In fig. A scratched stabilized explosive projectile that can be fired from the deck of a 155 mm caliber tank is identified with the number 1. The explosive projectile 1 comprises a steel projectile body 2, which has a hollow space 4 extending in the direction of the longitudinal axis 3 of the explosive projectile 1. In the hollow space 4 there is the insensitive explosive charge 5 associated with material synthetic known by itself.

De acuerdo con la invención está ahora previsto que entre la superficie interior 6 del cuerpo del proyectil 2 y la carga explosiva 5 adyacente a esta superficie se encuentre dispuesta al menos en zonas parciales 7, 8 una capa intermedia de silicona 9 con un grosor de capa de preferentemente 100 – 200 μm (en el ejemplo de realización representado en la fig. la capa intermedia de silicona 9 35 recubre aproximadamente un 56% de la superficie interior 6 del cuerpo de proyectil 2).  According to the invention, it is now provided that between the inner surface 6 of the projectile body 2 and the explosive charge 5 adjacent to this surface, an intermediate layer of silicone 9 with a layer thickness is disposed at least in partial areas 7. preferably 100-200 μm (in the exemplary embodiment shown in fig. the intermediate silicone layer 9 35 covers approximately 56% of the inner surface 6 of the projectile body 2).

Para ello, la capa intermedia de silicona 9 está dispuesta en la zona parcial 7 de la superficie interior 6 del cuerpo de proyectil 2 enfrentada a la punta 10 del proyectil del proyectil explosivo 1 y/o en la zona parcial 8 de la superficie interior 6 del cuerpo de proyectil 2 enfrentado a la parte posterior 11 del proyectil del proyectil explosivo 1. Sólo en las zonas en las que no está prevista ninguna capa 40 intermedia de silicona 9 se produce una unión adherente entre el cuerpo de proyectil 2 y la carga explosiva 5.  For this, the intermediate silicone layer 9 is arranged in the partial area 7 of the inner surface 6 of the projectile body 2 facing the tip 10 of the projectile of the explosive projectile 1 and / or in the partial area 8 of the inner surface 6 of the projectile body 2 facing the rear part 11 of the explosive projectile projectile 1. Only in areas where no intermediate silicone layer 40 is provided an adherent bond between the projectile body 2 and the explosive charge occurs 5.

Lista de símbolos de referencia List of reference symbols

1 proyectil explosivo 1 explosive projectile

2 cuerpo de proyectil 45 2 projectile body 45

3 eje longitudinal 3 longitudinal axis

4 espacio hueco 4 hollow space

5 carga explosiva 5 explosive charge

6 superficie interior 6 inner surface

7, 8 zona parcial 50 7, 8 partial zone 50

9 capa intermedia de silicona 9 silicone intermediate layer

10 punta del proyectil 10 projectile tip

11 parte posterior del proyectil 11 back of the projectile

Claims (4)

REIVINDICACIONES 1. Proyectil explosivo con un cuerpo de proyectil (2), en el que se encuentra un espacio hueco (4) que se extiende en dirección del eje longitudinal (3) del proyectil, relleno de una carga explosiva (5), en donde entre la superficie interior (6) del cuerpo de proyectil (2) y la carga explosiva (5) se encuentra integrada al menos en zonas parciales (7, 8) una capa intermedia de silicona (9) que representa un 5 medio de separación, y la carga explosiva (5) se encuentra unida de forma adherente con la superficie interior (6) del cuerpo de proyectil (2) en aquellas zonas en las que no está prevista ninguna capa intermedia de silicona (9). 1. Explosive projectile with a projectile body (2), in which there is a hollow space (4) extending in the direction of the longitudinal axis (3) of the projectile, filled with an explosive charge (5), where between the inner surface (6) of the projectile body (2) and the explosive charge (5) is integrated at least in partial areas (7, 8) an intermediate layer of silicone (9) representing a separation means, and The explosive charge (5) is adherently connected with the inner surface (6) of the projectile body (2) in those areas where no intermediate silicone layer (9) is provided. 2. Proyectil explosivo según la reivindicación 1, caracterizado porque entre un 30 y un 70% de la superficie interior (6) del cuerpo de proyectil (2) está provista de la capa intermedia de silicona (9). 10 2. Explosive projectile according to claim 1, characterized in that between 30 and 70% of the inner surface (6) of the projectile body (2) is provided with the intermediate silicone layer (9). 10 3. Proyectil explosivo según la reivindicación 1 ó 2, caracterizado porque la capa intermedia de silicona (9) está dispuesta en la zona parcial (7) de la superficie interior (6) del cuerpo de proyectil (2) enfrentada a la punta (10) del proyectil del proyectil explosivo (1) y/o en la zona parcial (8) de la superficie interior (6) del cuerpo de proyectil (2) enfrentado a la parte posterior (11) del proyectil del proyectil explosivo (1). 15 3. Explosive projectile according to claim 1 or 2, characterized in that the intermediate silicone layer (9) is arranged in the partial area (7) of the inner surface (6) of the projectile body (2) facing the tip (10 ) of the projectile of the explosive projectile (1) and / or in the partial area (8) of the inner surface (6) of the projectile body (2) facing the rear (11) of the projectile of the explosive projectile (1). fifteen 4. Proyectil explosivo según una de las reivindicaciones 1 a 3, caracterizado porque el grosor de la capa intermedia de silicona (9) es de 10 – 1000 μm, preferentemente de 100 – 200 μm. 4. Explosive projectile according to one of claims 1 to 3, characterized in that the thickness of the intermediate silicone layer (9) is 10-1000 μm, preferably 100-200 μm.
ES06806296T 2005-10-25 2006-10-14 EXPLOSIVE PROJECT. Active ES2354459T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005050973A DE102005050973A1 (en) 2005-10-25 2005-10-25 explosive projectile
DE102005050973 2005-10-25

Publications (1)

Publication Number Publication Date
ES2354459T3 true ES2354459T3 (en) 2011-03-15

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ID=37507699

Family Applications (1)

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ES06806296T Active ES2354459T3 (en) 2005-10-25 2006-10-14 EXPLOSIVE PROJECT.

Country Status (5)

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EP (1) EP1941230B1 (en)
AT (1) ATE491926T1 (en)
DE (2) DE102005050973A1 (en)
ES (1) ES2354459T3 (en)
WO (1) WO2007048521A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102008010707A1 (en) * 2008-02-22 2009-08-27 Rheinmetall Waffe Munition Gmbh Explosive projectile and method for its production
DE102008010706A1 (en) * 2008-02-22 2009-08-27 Rheinmetall Waffe Munition Gmbh explosive projectile
RU2450235C2 (en) * 2010-07-12 2012-05-10 Федеральное государственное унитарное предприятие "Российский Федеральный ядерный центр - Всероссийский научно-исследовательский институт экспериментальной физики" - ФГУП "РФЯЦ-ВНИИЭФ" Explosive assembly with plastisol explosive
DE102011100788A1 (en) * 2011-05-06 2012-11-08 Rheinmetall Waffe Munition Gmbh Projectile, in particular explosive projectile
DE102013014665B3 (en) * 2013-08-29 2014-04-30 Bundesrepublik Deutschland, vertreten durch das BMVg, vertreten durch das Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr Explosive projectile has auger that is inserted into the explosive charge in the direction of the projectile axis, and head igniter that is fixed with auger
DE102013021030A1 (en) 2013-12-17 2015-06-18 Rheinmetall Waffe Munition Gmbh Warhead and explosive charge module for such a warhead
DE102014103105B3 (en) * 2014-03-07 2014-12-04 Rheinmetall Waffe Munition Gmbh Method and production of a large caliber warhead and warhead produced by this method
EP3091329B1 (en) 2015-05-08 2017-12-27 Diehl Defence GmbH & Co. KG Method for producing a load for an explosive projectile
DE102015005980A1 (en) 2015-05-08 2016-11-10 Diehl Bgt Defence Gmbh & Co. Kg Explosive charge with vogegebenem volume and given outer shape and bullet
DE102016008391B4 (en) 2016-07-09 2018-05-24 Diehl Defence Gmbh & Co. Kg bullet
DE102018108766A1 (en) 2018-04-12 2019-10-17 Rheinmetall Waffe Munition Gmbh explosive projectile

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DE255009C (en) * 1910-02-21
US2276110A (en) * 1939-03-18 1942-03-10 Trojan Powder Co Explosive missile
US3243956A (en) * 1963-07-15 1966-04-05 Atlantic Res Corp Flexible support
US3212257A (en) * 1964-10-23 1965-10-19 Hercules Powder Co Ltd Rocket motor
US3786714A (en) * 1970-11-02 1974-01-22 Robertson Co H H Military bomb and method of making same
US4011818A (en) * 1976-04-01 1977-03-15 The United States Of America As Represented By The Secretary Of The Navy Warhead explosive liner
DE102005009931B3 (en) * 2005-03-04 2006-09-28 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH penetrator

Also Published As

Publication number Publication date
WO2007048521A1 (en) 2007-05-03
EP1941230A1 (en) 2008-07-09
ATE491926T1 (en) 2011-01-15
EP1941230B1 (en) 2010-12-15
DE102005050973A1 (en) 2007-04-26
DE502006008531D1 (en) 2011-01-27

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