EP1223404B1 - Warhead - Google Patents

Description

The invention relates to a warhead with an explosive charge enclosing Warhead casing.

It has long been known that plastic-bound in large-caliber projectiles To use explosive charges. Usually, the charges consist of the known Warheads of a unitary material chosen such that the when the charge detonates, splinters generated in a particular direction (e.g. Flight direction) have a predetermined acceleration and angular distribution. Splinters flying in a different direction (e.g., perpendicular to the direction of flight) become Although then also correspondingly high speeds, although such a high acceleration this splitter is not necessary. In DE 196 48 355 a fragmentation grenade with a (single) explosive charge described.

From DE 38 34 491 A1 is already a projectile-forming explosive charge with a Lining known, which is an initial charge and several different, in the direction Seen the longitudinal axis of the warhead, successively arranged partial charges whose detonation speeds from the initial charge in the direction to increase the lining. By such an arrangement different Partial charges is achieved that the spiked or Projektilgeschwindigkeit a larger Penetration performance is comparable to comparable warheads with a constant charge Detonation velocity. With the construction of warheads for acceleration of splinters (fragmentation projectiles) engaged in different directions However, this patent application is not.

The invention is based on the object, a warhead of the aforementioned Kind to reveal, on the one hand in detonation of its explosive charge a high acceleration the flying in the direction of splitter causes and on the other hand a less acceleration of splinters flying sideways from the warhead caused and / or in the side of a relatively strong pressure wave is generated.

This object is achieved by the features of claim 1. Further, particularly advantageous embodiments of the invention disclose the dependent claims.

The invention is based essentially on the idea, not a uniform charge to arrange in the shell of the warhead, but at least two different To provide charges. In this case, the points in the area of the top of the warhead arranged, e.g. from octogen (HMX) existing first partial charge a high Detonation on, around the arranged before this partial charge heavy metal splitter (preferably WSM-ball splitter) at detonation of the explosive charge very much fast forward (in the direction of flight) to accelerate. On the other hand it concerns with the second, at the back of the first partial charge subsequent partial charge to a much cheaper charge (e.g., RDX charge). This partial charge is only for one Acceleration of the lateral flying away e.g. Steel splitter required. Instead of a fragment-accelerating charge, explosives can also be used as the second charge can be used, which only generates a strong lateral pressure wave.

It has proved to be advantageous if the first partial charge of a mixture of 70-90 vol% octogen (HMX) and 10-30 vol% of an inert plastic binder (e.g., hydroxyl terminated polybutadiene (HTPB)) and the second partial charge of one Mixture of 70-90% by volume hexogen (RDX) and also 10-30% by volume of a plastic binder consists. Both partial charges should use the same binders be used.

Preferably, the second partial charge should be a metal powder (e.g., aluminum powder). blended to create a blast effect.

Further details and advantages of the invention will become apparent from the following a figure illustrated embodiment.

In the figure, 1 is a ballistic warhead fireable from a gun referred to, which is to be used against bunkered positions and while sideways from the respective position vehicles should also destroy. The warhead 1 comprises a warhead casing 2 made of steel, a front side of the warhead casing arranged proximity fuse 3, one adjoining the igniter Splinter plate 4 with heavy metal splinters (e.g., WSM balls) and an explosive charge 5. The explosive charge 5 is made up of four, in the direction of the longitudinal axis 6 of the warhead Seen 1, arranged in succession partial charges 7-10 together.

The splitter plate 4 adjacent first partial charge 7 consists of a mixture of e.g. 90% HMX and 10% of a HTPB binder system and has a relatively high Guerney constant of 2830 m / s. This serves to make the WSM balls extra special to accelerate high in the direction of flight.

The partial charges 8-10 are used to generate and accelerate the destruction the warhead casing 2 resulting splinters flying away from the side of the warhead. For this much less expensive RDX charges are sufficient. Both Splinters may be natural or preformed structural shards act.

To the best possible adaptation to the desired lateral splinter distribution of To get Warhead 1, the RDX partial charges 8-10 can range from area to area have a different composition (e.g., charge 8: 85% RDX and 15% HTPB binder system; Charge 9: 90% RDX and 10% HTPB binder system and charge 10: 70% RDX, 10% HTPB binder system and 20% aluminum powder).

For the purpose of the warhead 1, the warhead casing 2 becomes a certain one Share filled with the first partial charge 7. During the pot life of this mixture the second mixture is poured on the first partial charge, etc. The layered Infusion of various formulations based on the same polymer system then leads to a "tailored" effect (detonation speed) the charge.

LIST OF REFERENCE NUMBERS

1

warhead

2

Warhead casing

3

proximity fuse

4

Splinter plate, heavy metal splinter

5

explosive charge

6

longitudinal axis

7

first partial charge

8-10

partial loads

Claims (8)

1. Warhead having a warhead casing (2) which surrounds an explosive charge (5), having the following features:

   a) the explosive charge (5) comprises at least two plastic-bonded charge elements (7, 8-10) which are adjacent to one another, seen in the direction of the longitudinal axis (6) of the warhead (1);

   b) the first charge element (7), which faces the nose of the warhead (1) is composed of an explosive which has a higher detonation speed than the second charge element (8-10) and is chosen such that, when it detonates, heavy metal fragments (4), which are arranged on the front of the warhead (1), accelerate axially;

   c) the second charge element (8-10) is chosen such that it is used either as a fragment-accelerating charge in order to produce fragments flying away from the warhead (1) at the sides, or as a charge for producing a pressure wave which acts at the side of the warhead (1).
2. Warhead according to Claim 1, characterized in that the first charge element (7) is composed of 70-90% by volume of octogen (HMX) and 10-30% by volume of an inert plastic binding agent.
3. Warhead according to Claim 2, characterized in that the first charge element is composed of 90% of octogen and 10% of binding agent.
4. Warhead according to one of Claims 1 to 3, characterized in that the second charge element is composed of 70-90% by volume of hexogen (RDX) and 10-30% by volume of an inert plastic binding agent.
5. Warhead according to one of Claims 1 to 4, characterized in that the explosive charge (5) comprises four charge elements (7, 8-10), with the first charge element (7), which is adjacent to the nose of the warhead, being composed of octogen, and the adjacent charge elements (8-10) being composed of hexogen.
6. Warhead according to one of Claims 1 to 5, characterized in that the inert plastic binding agent is hydroxyl-terminated polybutadien (HTPB).
7. Warhead according to one of Claims 1 to 6, characterized in that a metal powder is mixed with the second charge element (8-10).
8. Warhead according to Claim 7, characterized in that an aluminium powder is mixed with the second charge element (8-10) as the metal powder.

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