A component bidirectional gradient energetic charge cap charging structure

Abstract

The present invention discloses a component bidirectional gradient energetic charge liner charging structure, the energetic charge liner charging structure includes a component bidirectional gradient charge liner, the energy density and ductility of the component bidirectional gradient charge liner bidirectionally gradient along the generatrix direction and the wall thickness direction, along the direction from the liner top to the liner mouth and from the outer surface to the inner surface, the energy density of the material constituting the charge liner gradually increases and the ductility gradually decreases; the material properties close to the liner top and the outer surface are biased towards the inert charge liner; the material properties away from the liner top and the outer surface are biased towards the energetic charge liner, and the explosive mainly forms an energetic pestle after detonation, which breaks into a large amount of fragment clouds and releases chemical energy after the jet penetrates the target plate. The above energetic charge liner charging structure combines the advantages of the energetic charge liner and the traditional inert charge liner, and can effectively improve the damage aftereffect of the armor-piercing warhead on the basis of retaining the high penetration depth performance.

Description

Technical Field

[0001] The invention belongs to the technical field of ammunition, and in particular relates to a component bidirectional gradient energetic charge cap charging structure. Background Art

[0002] The armor-piercing warhead is mainly composed of a liner, a charge and a shell. The high-speed jet formed by the charge detonation crushes the liner to penetrate the target, while producing a small amount of aftereffect fragments to damage the equipment inside the target. The liner is the main damage unit of the armor-piercing warhead to damage the target, and its structure, material composition and dynamic mechanical properties have an important influence on the power of the armor-piercing projectile.

[0003] Traditional charge liner materials mainly include red copper, tantalum-tungsten alloy, tungsten-copper alloy, etc. The materials have good ductility and dynamic mechanical properties, and the jet formed has the advantage of high penetration, but the material itself is an inert material and has a small penetration aperture, so the damage after-effect after penetrating the target is poor; the energetic charge liner has a large amount of active components added, and the self-activation and chemical energy of the active damage element can be used to improve the after-effect damage effect of penetrating the target, but the energetic components reduce the ductility and density of the charge liner, and the deflagration reaction of the active material will cause the jet to become unstable, making it impossible for the jet to continue to penetrate, thereby reducing the effective penetration depth of the jet. The jet formed by it can achieve a larger penetration aperture and after-effect, but the penetration depth is limited, which greatly restricts the application of energetic materials in armor-piercing weapons and equipment.

[0004] How to combine the advantages of energetic charge liners and traditional inert charge liners to effectively improve the damage effect of armor-piercing warheads while retaining high penetration performance is a bottleneck problem currently faced by the development of energetic charge liners. Summary of the invention

[0005] The present invention provides a component bidirectional gradient energetic charge liner charging structure, which can adapt to the dual damage requirements of high penetration and large aftereffect of armor-piercing projectiles by giving the material gradient dynamic mechanical properties at different positions in the charge liner generatrix direction and the wall thickness direction. It can effectively improve the damage aftereffect of the armor-piercing warhead while retaining the high penetration performance of the traditional inert charge liner.

[0006] In order to achieve the above object, the present invention adopts the following specific technical solutions:

[0007] A component bidirectional gradient energetic charge liner charging structure, the charge structure comprising a charge liner; the charge liner is a component bidirectional gradient charge liner;

[0008] The energy density and ductility of the liner gradually change in both directions along the generatrix direction and the wall thickness direction; along the direction from the liner top to the liner mouth and from the outer surface to the inner surface of the liner, the energy density of the material constituting the liner gradually increases and the ductility gradually decreases.

[0009] Furthermore, the cover material with low energy density and high ductility forms an inert jet, and the cover material with high energy density and low ductility forms an energetic pestle that can break and release chemical energy as it moves forward, thereby effectively improving the damage aftereffect while retaining the high penetration depth performance.

[0010] Furthermore, it also includes a shell, a secondary charge, a partition, a main charge and a pressure ring.

[0011] Furthermore, the shell, the secondary charge, the partition, the main charge, the charge liner and the pressure ring are all axisymmetric structures and are coaxially arranged.

[0012] Furthermore, the auxiliary charge is installed at the bottom of the shell; the partition is placed between the auxiliary charge and the main charge;

[0013] The main drug column is clamped between the auxiliary drug column and the drug liner.

[0014] Furthermore, along the axial direction of the shell, the secondary charge, the partition and the main charge are sequentially sealed and loaded in the shell;

[0015] The pressure ring is fixedly connected to the shell and is used to compress the outer end of the medicine liner.

[0016] Furthermore, the medicine liner is made of high entropy alloy material.

[0017] Furthermore, the medicine cover is formed by integrated printing.

[0018] Furthermore, the medicine liner is a conical structure.

[0019] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0020] The energetic charge liner charging structure of the present invention adopts a component bidirectional gradient charge liner, and the energy density and ductility of the component bidirectional gradient charge liner are bidirectionally gradient along the generatrix direction and the wall thickness direction. Along the direction from the liner top to the liner mouth and from the outer surface to the inner surface of the charge liner, the energy density of the material constituting the charge liner gradually increases and the ductility gradually decreases. The material properties of the liner top and outer surface near the liner are high ductility and low energy density, and its properties are biased towards inert liner. After the explosive detonates, this part of the liner material mainly forms a jet, which penetrates the target plate to form a deep hole; the material properties of the liner mouth and inner surface near the liner are high energy density, low elongation and easy to break, which are biased towards energetic liner. After the explosive detonates, this part of the liner material mainly forms a pestle, which breaks into a large amount of fragment cloud after the jet penetrates the target plate, releasing chemical energy, expanding the killing density and killing range, and significantly improving the aftereffects such as hole expansion, ignition and overpressure; therefore, the use of the above-mentioned energetic liner charging structure can form an inert jet with a high penetration depth and an energetic pestle that can release chemical energy as it advances, thereby effectively improving the damage aftereffect on the basis of retaining the high penetration depth performance, so as to meet the dual damage requirements of high penetration depth and large aftereffect of armor-piercing projectiles.

[0021] At the same time, the above-mentioned energetic charge liner charging structure solves the problems of insufficient penetration depth of traditional energetic charge liner and poor damage after-effect of inert charge liner. It combines the advantages of energetic charge liner and traditional inert charge liner, and can effectively improve the damage after-effect of armor-piercing warhead while retaining high penetration depth performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1a It is a schematic diagram of the composition structure of the energetic charge liner of the present invention;

[0023] Figure 1b It is a schematic diagram of the gradient direction of the component bidirectional gradient liner;

[0024] Figure 2 It is a schematic diagram of the principle of the inert jet and energetic pestle forming of the bidirectional gradient liner;

[0025] Figure 3 Schematic diagram of the principle of inert jet penetrating the target plate and the energetic pestle fragmenting and releasing energy.

[0026] Figure numerals: 1- liner, 2- pressure ring, 3- shell, 4- partition, 5- auxiliary charge, 6- main charge. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] This embodiment provides a component bidirectional gradient energetic charge cap charge structure, such as Figure 1a As shown in the structure, the charge structure includes a liner 1, a pressure ring 2, a shell 3, a partition 4, an auxiliary charge column 5 and a main charge column 6; the liner 1 is located at the front end of the armor-piercing projectile, and the auxiliary charge column 5, the partition 4 and the main charge column 6 are sequentially sealed and loaded in the shell 3, and the liner 1 is firmly fixed by the pressure ring 2. The charge structure is an axisymmetric structure, and the shell 3, the auxiliary charge column 5, the partition 4, the main charge column 6, the liner 1 and the pressure ring 2 are all axisymmetric structures and are coaxially arranged; along the axial direction of the shell 3, the auxiliary charge column 5, the partition 4 and the main charge column 6 are sequentially sealed and loaded in the shell 3; the pressure ring 2 is fixedly connected to the shell 3, and is used to compress the outer end of the liner 1, and the liner 1 is fixedly installed in the shell 3 through the pressure ring 2, and the liner 1 is located on the opening side of the shell 3 and connected to the auxiliary charge column 5; the pressure ring 2 and the shell 3 can be connected by threads.

[0029] The liner 1 is a component bidirectional gradient liner; the energy density and ductility of the component bidirectional gradient liner are bidirectionally gradient along the generatrix direction and the wall thickness direction; along the direction from the liner top to the liner mouth and from the outer surface to the inner surface of the liner 1, the energy density of the material constituting the liner 1 gradually increases and the ductility gradually decreases, that is: the component bidirectional gradient liner along its generatrix direction from the liner top to the liner mouth direction, such as Figure 1b In the direction indicated by the arrow A, the energy density of the material constituting the liner 1 gradually increases and the ductility gradually decreases. At the same time, the bidirectional gradient liner of the component is from the outer surface to the inner surface along the direction of its wall thickness, such as Figure 1b In the direction indicated by the middle arrow B, the energy density of the material constituting the liner 1 gradually increases and the ductility gradually decreases. That is to say, the material near the top and the outer surface of the liner 1 has a low energy density and a high ductility, which is used to form an inert jet that maintains a high penetration depth, while the material near the liner mouth and the inner surface has a high energy density and a poor ductility, which is used to form an energetic pestle that releases chemical energy as it advances, thereby effectively improving the damage aftereffect while retaining the high penetration depth performance. The liner 1 is formed by one-piece printing, such as 3D printing. The one-piece printing does not require the addition of an energy-containing layer or an inert layer on the inner and outer surfaces of the liner 1, which simplifies the assembly process of the liner 1 and improves the assembly quality of the liner 1. The liner 1 is a conical structure. Figure 1a In the figure, the part close to the axis of the medicine liner 1 is the hood top, and the part away from the axis is the hood mouth.

[0030] The charge structure of the charge liner adopts a component bidirectional gradient charge liner. The energy density and ductility of the component bidirectional gradient charge liner are bidirectionally gradient along the generatrix direction and the wall thickness direction. Along the direction from the top of the liner to the liner mouth and from the outer surface to the inner surface, the energy density of the material gradually increases and the ductility gradually decreases. The material characteristics of the liner top and the outer surface part close to the charge liner 1 are high ductility and low energy density, and its characteristics are biased towards the inert charge liner. After the explosive detonates, the top part of the liner mainly forms a jet, which penetrates the target plate to form a deep hole; the material characteristics of the liner mouth end and the inner surface part are high energy The high density, low elongation and easy breakage of the liner are inclined to the energetic charge liner. After the explosive is detonated, the liner mouth mainly forms a pestle, which breaks into a large number of fragment clouds after the jet penetrates the target plate, releasing chemical energy, expanding the killing density and killing range, and significantly improving the aftereffects such as hole expansion, ignition and overpressure. Therefore, the above-mentioned charge liner charging structure can form an inert jet with a high penetration depth and an energetic pestle that can release chemical energy as it advances, and the charge liner 1 is formed in one piece, thereby effectively improving the damage aftereffect while retaining the high penetration depth performance, so as to meet the dual damage requirements of high penetration depth and large aftereffect of the armor-piercing projectile.

[0031] The working process of the above-mentioned charge structure is as follows:

[0032] After the charge is detonated, the liner 1 collapses and closes under the action of the detonation wave. Due to the different collapse speeds, time constants and collapse angles, the liner materials at different positions on the liner 1 will form jets or pestles; Figure 2 As shown, Figure 2 As shown in the figure, the serial numbers a, b, c, and d at different positions on the liner are used to mark the positions of the corresponding jets and pestles. It can be seen from the figure that the arrangement order of the pestles is consistent with the arrangement serial numbers of the liner materials, and the arrangement order of the jets is opposite to the arrangement serial numbers of the liner materials. Therefore, from the perspective of the liner wall thickness, the outer surface of the liner material will form a jet, and the inner surface will form a pestle; from the perspective of the liner generatrix direction, the liner material close to the liner top has a certain mass proportion that can form a high-speed jet, and most of the liner material away from the liner top will form a pestle with a lower speed.

[0033] According to the mass distribution ratio of the jet and the pestle after the liner 1 is formed, the liner 1 is set to a two-way gradient structure of material components. The material properties near the top of the liner 1 and the outer surface of the liner 1 are high ductility and low energy density, which is biased towards an inert liner. After the explosive detonates, it mainly forms a jet, which penetrates the target plate to form a deep hole; the material properties near the liner mouth and the inner surface of the liner 1 are high energy density, low elongation and easy to break, which is biased towards an energetic liner. After the explosive detonates, this part of the liner material mainly forms a pestle, which follows the jet into the target to release energy, and after passing through the deep hole constraint on the target plate, it diffuses backward behind the target and breaks into a large number of small fragments, and releases chemical energy, such as Figure 3As shown, the aftereffects of the armor-piercing projectile such as hole expansion, ignition and overpressure are effectively improved.

[0034] Among them, the shaped charge structure of the present invention can reduce the charge amount and charge caliber of the energetic charge liner at the same power level, or improve the penetration power and aftereffect power of the energetic charge liner armor-piercing projectile at the same mass and charge caliber.

[0035] The charge liner charging structure provided by the above technical solution has a reasonable design, outstanding effect and great room for promotion and application.

[0036] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A component bidirectional gradient energetic charge liner charging structure, comprising a charge liner; characterized in that: The drug liner is a component bidirectional gradient drug liner; The energy density and ductility of the liner vary gradually in both directions along the generatrix and the wall thickness. Along the direction from the liner top to the liner mouth and the direction from the outer surface to the inner surface of the liner, the energy density of the material constituting the liner gradually increases and the ductility gradually decreases.

2. The energetic charge liner charging structure according to claim 1, characterized in that: The cover material with low energy density and high ductility forms an inert jet, and the cover material with high energy density and low ductility forms an energetic pestle that can release chemical energy as it breaks, thereby improving the damage effect while retaining high penetration depth performance.

3. The energetic charge liner charging structure according to claim 2, characterized in that: It also includes a shell, an auxiliary charge, a partition, a main charge and a pressure ring.

4. The energetic charge liner charging structure according to claim 3, characterized in that: The shell, the secondary drug column, the partition, the main drug column, the drug liner and the pressure ring are all axisymmetric structures and are coaxially arranged.

5. The energetic charge liner charging structure according to claim 4, characterized in that: The auxiliary charge column is installed at the bottom of the shell; the partition is placed between the auxiliary charge column and the main charge column; The main drug column is clamped between the auxiliary drug column and the drug liner.

6. The energetic charge liner charging structure according to claim 5, characterized in that: Along the axial direction of the shell, the secondary charge, the partition and the main charge are sequentially sealed and loaded in the shell; The pressure ring is fixedly connected to the shell and is used to compress the outer end of the medicine liner.

7. The energetic charge liner charging structure according to any one of claims 1 to 6, characterized in that: The medicine-shaped cover is formed by integrated printing.

8. The energetic charge liner charging structure according to any one of claims 1 to 6, characterized in that: The medicine liner is made of high entropy alloy material.

9. The energetic charge liner charging structure according to any one of claims 1 to 6, characterized in that: The medicine liner is a conical structure.

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