KR20220012725A - Penetrator with explosive warhead having high explosive ability - Google Patents

Abstract

The present invention relates to a penetrator including an explosive-forming warhead with a high explosive incendiary capability containing an incendiary material. The present invention relates to the penetrator and a manufacturing method thereof. Specifically, according to the present invention, two metal plates with different strength and melting point are made concave at different angles, overlapped, and then filled with the complex incendiary material between them, thereby manufacturing the explosive-forming warhead. The explosive-forming warhead is exploded and ejected by a projectile and transformed into the penetrator. The penetrator includes the explosive-forming warhead in which secondary destruction occurs due to the complex incendiary material in the metal plate under pressure due to internal inertia when the penetrator first collides with a target.

Description

Penetrator with explosive warhead having high explosive ability

The present invention relates to a penetrator comprising an explosive-forming warhead having a high explosive incendiary ability containing stably incendiary material, and more particularly, by retaining an incendiary material in the warhead itself, due to internal inertia during the first collision with a target. It relates to incendiary and reactive penetrators that glow under pressure and cause secondary destruction.

The typical types of directional energy warheads that have a mechanism to focus the explosive energy of gunpowder to destroy targets such as armor are the Shaped Charge Warhead and the Explosively Formed Penetrator (EFP).

The molding charge has enough energy to penetrate the armor because the pressure generated during the collision of the high-speed jet generated by the energy of the gunpowder with the armor greatly exceeds the yield strength of the armor material.

In general, when detonating a peony, the metal liner injected at high speed with the explosive energy is transformed into a spherical shape, a ballistic shape, or a rod shape depending on the material, thickness, diameter, curvature, and the shape of the detonation wave, and collides with the target to destroy it. It was developed to counter the evolving protection power of tanks and armored vehicles as a penetrator, and aims to penetrate the upper armor, which is the weak point of armored vehicles. The main peony is filled in the inside of the bullet with the front open, and the liner in the open front of the bullet has a sealing structure. As the main peony explodes, the liner is transformed into a penetrator by self-forging, and the penetrator collides with the target, thereby destroying the target. The existing liner is formed in the shape of a disk, has a convex shape toward the front, and is formed into a penetrator in case of an explosion, so that it flies toward the target at a high speed of 1000 m/s or more.

The warhead of the existing explosive-molded penetrator is either charged by melting gunpowder into a warhead assembled without gunpowder, or by compression-molding a compression-type compound gunpowder to form gunpowder pellets and post-processing so that the pellets can be inserted into the space within the warhead. It is manufactured by assembling the used gunpowder pellets in the warhead. However, in the case of manufacturing an explosive penetrator warhead by melting and charging gunpowder into a warhead assembled without gunpowder, it shrinks when the molten gunpowder solidifies and causes internal pores in the gunpowder to cause quality problems due to the inconsistent filling state of the gunpowder. However, when assembling a liner that is later formed into a penetrator, there is a problem in that a gap occurs between the gunpowder and the liner because it is difficult to completely adhere to the adhesive surface of the gunpowder and the liner. In addition, when the molded gunpowder pellets are post-processed and then assembled into the warhead, it is difficult to completely adhere to the adhesive surface of the molded gunpowder pellets and the liner, resulting in a gap between the gunpowder and the liner. There are problems in that the manufacturing process is complicated because a pressing process is required, the productivity is low, and the manufacturing cost is increased. In addition, when a warhead with a complex function of fragmentation and explosive-molding penetrator is configured and deployed and operated in an actual guided missile, the penetration performance of the explosive-molded penetrator is reduced due to the interference effect of the constituent steel, aluminum, and plastic materials placed in front of the warhead. and the penetrating energy may be completely consumed.

In conclusion, the conventional explosive-shaped penetrator simply stopped devising to form a simple penetrator like the conventional compacted charge bomb by using the metal-shaped warhead generated after the explosion, and the warhead including this explosive-shaped penetrator could have been placed in the guided missile. It was a common phenomenon that the penetrating energy was consumed and the penetrating force was not able to neutralize the actual target. In addition, in the case of conventional molded charge bombs or explosive molded penetrators, reactive armor that causes the explosion to be applied in the opposite direction or stop there, or heavy armor that reduces penetration by creating a space between the main armor and the exterior (space armor) and 2 In many cases, it is incapacitated by technology such as composite gloves filled with composite materials such as ceramics between the dog's armor plates. Even in the case of foreign patents, there is only mention of an explosion-molded penetrator in a method in which a target is first contact-destroyed with a penetrator and then a reactive material is injected into the space to cause secondary destruction.

Accordingly, the present inventors have included an explosive-forming warhead with high explosive incendiary ability to cause secondary destruction by causing another explosion at the first contact destruction point of the target itself, unlike the conventional explosive-type penetrator, which expects physical destruction with kinetic energy. The present invention was completed by preparing incendiary and reactive penetrators.

Republic of Korea Patent No. 10-1823819 Republic of Korea Patent Registration No. 10-1924966

In the case of the existing explosive-shaped penetrator, the design stopped at forming a simple penetrator such as a shaped charge bomb, and it is often disabled due to technologies such as reactive armor or space armor, so an explosive-shaped penetrator that effectively destroys the target is required.

Accordingly, an object of the present invention is to provide a penetrator including an explosive-forming warhead having a high explosive incendiary ability that causes an explosion at a primary contact destruction point to cause secondary destruction.

In order to achieve the above object, the inventor of the present invention holds an incendiary material within itself and burns under pressure from the inside due to inertia during the first collision with a target to form an explosion having a high explosive ability to cause a large secondary destruction A penetrator containing a warhead is provided.

The penetrator including the explosive-forming warhead having the high explosive incendiary ability of the present invention can destroy the colliding target and efficiently destroy the internal structure by inducing the explosive thermal expansion due to the reaction of the incendiary agent triggered inside the target. Existing explosives, including the application of demolition of general buildings, can be used in mountains or land containing stones and soil that are difficult to dismantle or detonate with conventional explosives. can be applied and used.

1 is a view showing an explosive-forming warhead attached to a projectile.
100: back metal plate
101: front metal plate
102: complex incinerator
103: projectile case
104: projectile detonator
105: the reactant of the projectile
2 is a diagram briefly illustrating a process in which an explosion-forming warhead exploded and ejected by a projectile is transformed into a penetrator.
3 is a diagram schematically illustrating a process in which a penetrator including an explosive-forming warhead destroys a target.
106: primary target
107: secondary target

Hereinafter, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily carry out the present invention. The embodiments of the present invention are provided in order to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the embodiment of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below.

Throughout the specification of the present invention, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

As used throughout the specification of the present invention, the term “step for (to)” or “step for” does not mean “step for”.

The present invention is a high-explosive incendiary ability that is ejected by the reactant of a projectile, stably flies to the target, hits the target, and when the target first collides, a secondary explosion by incendiary materials in two metal plates occurs to destroy the target It provides a penetrator comprising an explosive-forming warhead having a. In addition, the penetrator including the explosive-forming warhead having the high explosive ability may stably contain an incendiary material.

In the present invention, the secondary explosion can be generated by pushing the incendiary material contained in the metal plate by the forward pressure behind the penetrator due to internal inertia during the first collision of the target with the explosive-forming warhead fired by the reactant of the projectile. .

In the present invention, since the destructive properties may not occur when the generally used military or industrial thermite material is used, the inflammable material has a high density of the metal itself or its hydrogen compound and the sintered metal itself or It may be a complex incinerator using its hydrogen compound. In addition, the power of the complex incinerator may increase as the density increases.

The thermite reaction is a reaction in which a metal oxide (oxidizer) is deoxidized by a metal powder (fuel) to generate strong heat of reaction, and the reaction formula is shown in (1) below.

Thermite Reaction = 2M + Y ₂ O ₃ → 2Y + M ₂ O ₃ (1)

In the above reaction formula, M may be a metal powder containing aluminum, lithium, potassium, magnesium, titanium, zinc, silicon, boron, etc., and the metal powder may be used alone or in combination, but aluminum has a high boiling point and is cheap It can be used most commonly. In the above reaction formula, Y may be a metal oxide including bismuth oxide, boron trioxide, silicon dioxide, chromium oxide, manganese dioxide, iron oxide, copper oxide, and lead oxide.

The composite plasticizer may use aluminum powder as a metal powder (fuel), and the aluminum powder may be 20 to 60% by weight, specifically 30 to 60% by weight, and preferably 30 to 50% by weight. . In addition, the complex agent may use ferric oxide as the metal oxide (oxidizing agent), and the ferric oxide may be 40 to 80% by weight, specifically 50 to 70% by weight, preferably 50 to 70% by weight. can

In the present invention, the complex incinerator is a catalyst or a gas generating agent sulfur; barium nitrate, which is a pyrotechnic agent; nitrocellulose, acetcellulose, sulfur and zinc as additives (shape fixing agents); and lithium hydride, zirconium and iron oxide, which are filling materials; but may be added, but is not limited thereto.

In addition, the additive may vary depending on the temperature to be ignited immediately after impacting the target, and when it is to be ignited at a low temperature, nitrocellulose having the lowest natural ignition temperature can be used, and when it is to be ignited at an intermediate temperature, it is in an inactive form Sulfur and zinc can be mixed with acetcellulose as a fixing agent, and acetcellulose can be used at high temperatures or when not easily ignited. If the additive is inactive (non-energy material), it may need a temperature of 1200°C for thermite reaction itself. By controlling the type and composition, it is possible to manufacture a complex incinerator.

In the present invention, the two metal plates may use a metal plate having a different inclination inward, and the metal plate may be divided into a front metal plate and a rear metal plate, respectively. The front metal plate may be a concave metal plate having an inclination of 5 to 20 degrees inside, and specifically, a concave metal plate having an inclination of 10 to 15 degrees inward. In addition, the rear metal plate may be a concave metal plate having an inclination of 20 to 40 degrees, specifically, a concave metal plate having an inclination of 20 to 30 degrees. In addition, the front metal plate and the rear metal plate may be a metal plate having a thickness of 5 to 10 mm, and may be a metal plate having a diameter of 150 to 200 mm, but is not limited thereto.

By filling the space between the metal plates having different inclinations and overlapping the metal plates, the composite incinerator can be used as an explosive-forming warhead containing the composite incinerator in the two metal plates.

In the present invention, the two metal plates may use a metal plate with different strength and melting point, the front metal plate may use a lower hardness than the rear metal plate, and the rear metal plate can withstand the explosive energy of the reactant of the projectile, A metal having a higher hardness and melting point than the front metal plate can be used. One of the front metal plates may be selected from the group consisting of lead, copper and aluminum, and one of the rear metal plates may be selected from the group consisting of copper and iron. In addition, the front-rear metal plate is one of lead-copper (Pb-Cu), copper-iron (Cu-Fe), aluminum-iron (Al-Fe), and lead-iron (Pb-Fe). A combination can be selected, preferably a combination of lead-copper can be selected. In addition, the copper may be a copper-zinc alloy, and the iron may be carbon steel containing carbon in a certain ratio or more.

In the present invention, the metal plate of the front part may be ignited by an explosive injection impact to initiate a reaction, and may be deformed by the heat and impact caused by the reaction to form a penetrator front part.

In the present invention, tungsten, iridium, and a polymer thereof may be attached to the central axis where explosive energy is collected in order to enhance the penetrating effect of the front metal plate that is deformed and formed into the front part of the penetrator, specifically tungsten-copper (W-Cu), tungsten-tin (W-Sn), tungsten-zinc (W-Zn), tungsten-iron (W-Fe), tungsten-iridium (W-Ir), tungsten-nickel (W-Ni)-based, tungsten-copper-zinc (W-Cu-Zn)-based, tungsten-iron-nickel (W-Fe-Ni)-based polymer alloy can be attached, preferably tungsten-iridium ( W-Ir)-based polymer alloy can be attached. In addition, the polymer gold attached to the front part of the metal plate may be a conical shape and a cone-shaped polymer gold in which a surface of the cone is bent from a reference horizontal plane.

In the present invention, the edges of the two metal plates can be naturally welded by blast pressure immediately after the explosion and simultaneously with the explosion, and a strong incendiary penetrator can be formed by the natural welding. The penetrator may fly to the target at a speed of about 3000 m/s to strike the target, and may primary and secondary destruction of the target.

In addition, the present invention includes an explosive-forming warhead having high explosive incendiary ability to destroy the target by generating a secondary explosion by incendiary materials contained in two metal plates upon the first collision with the target injected by the reactant of the projectile. A method for manufacturing a penetrator is provided.

The method for manufacturing a penetrator including the explosive-forming warhead is manufactured by a method including the following steps.

(a) preparing a complex incinerator;

(b) manufacturing an explosive warhead by filling the composite incinerator prepared in step (a) between the lenses made by concave and overlapping two metal plates having different melting points and strengths at different angles; and

(c) attaching the explosive-forming warhead filled with the complex incendiary agent of step (b) to the front part of the projectile;

The composite incendiary agent of step (a) and the two metal plates of step (b), the composite incendiary agent charged in the two overlapping metal plates, and the composite incendiary agent in the two metal plates are filled with the explosive-forming warhead made with high explosive capability. It is the same as the description for the penetrator including the explosive-forming warhead, and the detailed description refers to the above.

The projectile of step (c) has an explosive reactant, and an explosive-forming warhead having a high explosive ability can be ejected by the explosive reactant. The explosive reactants are high explosives ANQ nitrate (1-Amino-3-nitroguanidine nitrate), HMX (1,3,5,7-tetranitro-1,3,5,7-tetrazocane), RDX (1,3,5) -Trinitro-1,3,5-triazinane), HNIW (Hexanitrohexa-azaisowurtzitane), and PETN (Pentaerythritol tetranitrate) may be one or more explosives selected from the group consisting of.

In addition, natural welding and integration of the edges of the front-rear metal plate lens may be performed due to blast pressure during the injection.

The reactant of the projectile and the rear metal plate having a high melting point and high hardness of the explosive-forming warhead capable of withstanding the explosive energy of the reactant may be in contact.

In addition, the present invention provides a penetrator including an explosion-forming warhead having a high-explosive incendiary capability manufactured by the method for manufacturing a penetrator including an explosive-forming warhead having a high explosive incendiary capability.

The explosive-forming warhead having a high explosive incendiary capability of the present invention is a warhead stably containing an incendiary material, and is a penetrator including an explosive-forming warhead having a high explosive incendiary capability that is transformed into a penetrator while being exploded and ejected by a projectile, wherein the penetrator is When it collides with a target, the speed of the front part decreases due to resistance, but the rear part advances at the same speed due to inertia, so the internal compound incinerator can sink into the target. The target can be destroyed from the inside under maximum pressure when penetrating inside by the rear part of the penetrator, which is slowed by resistance and advanced at the same speed as the front part of the narrowed penetrator. In addition, when a secondary explosion occurs while penetrating through the interior, it may cause gas generation and thermal expansion explosion.

In addition, the explosive-forming warhead having a high explosive incendiary capability of the present invention does not use explosive ammunition such as another shaped charge or high explosive as a primary destructive warhead unlike the existing double warhead (Tandem), so the direction opposite to the direction of the warhead resistance does not occur.

In addition, the explosive-forming warhead having the high-explosive incendiary ability of the present invention generates energy by directly reacting with the secondary target after the primary destruction by the complex incendiary agent inside the warhead, or when it enters the space, friction with the internal air at high speed to create a high-explosive incendiary. The effect can occur and secondary destruction of structures such as tanks and bunkers is possible. In addition, the rear structure of the penetrator remaining after the primary destruction may pass through the portion where the target is destroyed to hit the secondary target.

The penetrator including the explosive-forming warhead with high explosive incendiary ability of the present invention can be used for warheads such as bunker penetration and anti-tank missiles for military purposes, and for industrial purposes, it is difficult to dismantle general buildings and dismantle them with conventional explosives. It can be used in mountains or land containing difficult stones and soil, and it is not limited to simple buildings and can be used for all objects that can be destroyed directly or secondary destruction.

Hereinafter, an embodiment of the present invention will be described in more detail. However, the following examples are provided to help the understanding of the present invention and are not intended to limit the scope of the present invention.

<Example 1> Manufacture of a penetrator comprising an explosive-forming warhead having a high explosive incendiary capability

<1-1> Manufacture of complex incinerator

A composite plasticizer was prepared using aluminum (Al) and ferric oxide (Fe ₂ O ₃ ).

Specifically, after mixing 400 g of aluminum powder and 600 g of ferric oxide, 15 g of sulfur as a catalyst and gas generator, 7 g of barium nitrate as a flame inducer, 3 g of acetcellulose as a shape fixing agent, and 3 g of zirconium as a filling material were added. A complex incinerator was prepared.

Since the present invention is related to sensitivity, impact sensitivity, and temperature sensitivity, the components are adjusted according to the purpose.

<1-2> Manufacture of metal plate for explosive warhead

A lead (Pb) metal plate was used for the front part and a copper (Cu) metal plate was used for the rear part to manufacture an explosive-forming warhead.

Specifically, a circular lead metal plate 5 mm thick and 200 mm in diameter with an inclination of 30 degrees on the inside with respect to the horizontal line and a circular copper back part with a thickness of 5 mm and a diameter of 200 mm with an inclination of 10 degrees on the inside with respect to the horizontal line The composite plasticizer prepared in Example <1-1> was filled in the space between the metal plates and the overlapping space.

The edges of the two overlapping metal plates were not welded because they were automatically welded after firing.

<1-3> Manufacture of a penetrator filled with a compound incinerator

ANQ nitrate (1-Amino-3-nitroguanidine nitrate) Cu metal plate (rear part) of the explosive-forming warhead prepared in Example <1-2> on the front part of the projectile containing the nitrocellulose case and the reactivity By attaching the materials to contact, a penetrator filled with a composite plasticizer was prepared.

Claims (12)

In the case of the first collision with the target during the explosive injection by the projectile, the second explosion occurs by the incendiary material contained in the two metal plates, destroying the target and stably containing the incendiary material,
A penetrator comprising an explosive-forming warhead with high explosive incendiary capability.
The method of claim 1,
The second explosion is a penetrator, which is generated by thermal energy of the incendiary material contained in the metal plate under pressure by internal inertia during the first collision.
The method of claim 1,
The incendiary material is at least one powder selected from the group consisting of aluminum, lithium, potassium, magnesium, titanium, zinc, silicon, boron and hydrogen compounds thereof, and bismuth oxide, boron trioxide, silicon dioxide, chromium oxide, manganese dioxide, iron oxide, It is a mixture of one or more metal oxides selected from the group consisting of copper oxide and lead oxide,
These are complex agents that cause thermite reaction, penetrators.
The method of claim 1,
The penetrator, wherein the inflammable material is a composite incinerator comprising 20 to 60% by weight of aluminum powder and 40 to 80% by weight of ferric oxide.
4. The method of claim 3,
The complex agent may be added at least one selected from the group consisting of sulfur, barium nitrate, nitrocellulose, acetcellulose, sulfur, zinc, lithium hydride, zirconium and iron oxide, penetrators.
The method of claim 1,
The two metal plates have a thickness of 5 to 10 mm and a diameter of 150 to 200 mm,
A penetrator, consisting of a front metal plate-back metal plate with different strength, melting point and inward inclination.
7. The method of claim 6,
In the two metal plates, the front metal plate has an inner inclination of 5 to 20 degrees, and the rear metal plate is a concave metal plate having an inner inclination of 20 to 40 degrees.
7. The method of claim 6,
In the two metal plates, the rear metal plate is made of a metal having a higher strength and a higher melting point than the front metal plate.
7. The method of claim 6,
The combination of the front metal plate and the rear metal plate is lead-copper (Pb-Cu), copper-iron (Cu-Fe), aluminum-iron (Al-Fe), and lead-iron (Pb-Fe). One combination selected from the group consisting of a penetrator
7. The method of claim 6,
The front metal plate is deformed by heat and impact during explosion injection and is formed as a penetrator front part.
11. The method of claim 10,
Tungsten-copper (W-Cu)-based, tungsten-tin (W-Sn)-based, tungsten-zinc (W-Zn)-based, tungsten-iron (W-Fe)-based, tungsten on the central axis of the deformed front metal plate -Iridium (W-Ir), tungsten-nickel (W-Ni), tungsten-copper-zinc (W-Cu-Zn), tungsten-iron-nickel (W-Fe-Ni) conical or curved A penetrator that attaches a cone-shaped polymer alloy.
The method of claim 1,
The two metal plates are a penetrator, whose edges are naturally welded by blast pressure during explosion injection.

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