KR102101327B1 - Method for manufacturing armor plate for external glove and armor plate for external glove manufactured thereof - Google Patents

Abstract

The present invention relates to a method for manufacturing a bulletproof plate for outer gloves, and the bulletproof plate for the outer gloves manufactured thereby. More specifically, a front bulletproof material of a composite material, an intermediate bulletproof material of a ceramic material, and a rear bulletproof material of the composite material are sequentially stacked inside a metal case. Then, in a state in which a metal cover is stacked on the metal case, the materials are molded in an autoclave to manufacture the bulletproof plate so that a mold for molding is unnecessary, thereby reducing a manufacturing cost. In addition, the intermediate bulletproof material is arranged by using a tile-type ceramic, and thus a multi-hit protection ability is improved.

Description

Bulletproof plate manufacturing method for outer gloves and a bulletproof plate for outer gloves produced thereby {METHOD FOR MANUFACTURING ARMOR PLATE FOR EXTERNAL GLOVE AND ARMOR PLATE FOR EXTERNAL GLOVE MANUFACTURED THEREOF}

The present invention relates to a method for manufacturing a bulletproof plate for an outer glove, and a bulletproof plate for an outer glove manufactured thereby, in detail, sequentially in a metal case, in front of the composite material, in the middle of the ceramic material, in the middle of the ballistic material, and in the composite material. After stacking them with a metal case, the metal cover is molded in an autoclave to manufacture bulletproof plates, thereby eliminating the need for a mold for molding, reducing manufacturing costs, and arranging intermediate bulletproof materials using tile-type ceramics. The present invention relates to a method for manufacturing a bulletproof plate for outer gloves to improve the ability to protect the multitan, and a bulletproof plate for outer gloves produced thereby.

In general, bulletproof plates protect the crew and important electronic components inside the vehicle by preventing bullets from penetrating when the bullets fired from the firearms are evacuated to ships, submarines, aircraft, and combat vehicles.

The structure of the bulletproof plate is such that a plurality of panels are laminated, and the front panel is usually provided to rupture and destroy the colliding projectile. A backing plate or a fiber panel, which is a shock absorbing panel made of ceramic or the like behind the front bulletproof material, structurally supports the front panel and also serves to capture the remaining projectiles and armor portions.

Here, the ceramic commonly used in the bulletproof plate structure is a material useful for neutralizing a projectile as long as it operates in a compression mode. For example, the compressive strength of silicon carbide (SiC) ceramic is 3,900 MPa (566,000 psi), but the tensile strength is It is only 380 MPa (55,000 psi). The ratio of compressive strength to tensile strength for most metals is approximately 1: 1, but in the case of armored ceramics, the ratio of compressive strength to tensile strength is under dynamic conditions such as 10 to 1 to ballistic impact when tested in quasi-static mode. It is in the range of 20 to 1 when tested.

Further, the most common ceramic material used as a bulletproof plate is alumina oxide. In recent years, ceramics that are lighter than alumina oxide have been developed as gloves. Newer ceramics include, but are not limited to, aluminum nitride, silicon carbide and boron carbide. Unfortunately, these newer lightweight ceramics are much more expensive than alumina oxide.

Research has continued to develop improved grades of ceramic materials tailored to meet the requirements for armored systems according to the general understanding that ceramic materials that are harder and have greater fracture toughness are generally better as bulletproof plates.

In other techniques for curing ceramic glove materials, ceramics are encapsulated under preload. The preload is usually provided by a perimeter compression frame made of metal. The frame also holds the ruptured ceramic glove in place, preventing the projectile from pressing the ruptured ceramic to one side and penetrating the host object. Encapsulation of ceramic gloves is an expensive technique and involves several integration challenges when the configuration is applied as a host vehicle in a laboratory.

The ballistic industry uses a scoring system to measure glove performance called "mass efficiency".

All projectiles can be stopped by a certain amount of armor steel. In the armor industry, the specific alloy of steel used as a performance standard is referred to as Rolled Homogeneous Armor (RHA). It is a steel temper and certain alloys as specified in U.S. military specification MIL-STD-12560. The mass efficiency represented by Em is the weight per unit area of the RHA required to stop a specific threat projectile divided by the weight per unit area of a candidate armor that stops the same threat projectile. RHA gloves have an Em of 1. Some ceramic armor laminates may exhibit better mass efficiency than steel for armored APs.

Due to weight constraints, the payload of armored vehicles is usually reduced by the addition of increased armor.

If it was not possible to develop an armor system with significantly improved performance and higher mass efficiency, the vehicle's payload would continue to decrease or the overall weight of the vehicle would have to increase.

Referring to an embodiment of the conventional bulletproof plate, as shown in Figure 1, is formed of a front panel 110, a ceramic panel 130 and a back panel 150, the front panel 110 and the ceramic panel 130 ) And the rear panel 150 are laminated by inserting the adhesive panels 120 and 140.

Then, the laminate is inserted into a mold and then molded using an autoclave, an oven, or a press.

However, the above-mentioned conventional bulletproof boards require a mold for molding, and since different shapes are required according to the shape of the armored vehicle, the number of molds accordingly increases and the number of manufacturing steps increases, thereby increasing manufacturing cost and manufacturing time. There is a problem that is increased and difficult to manufacture.

In addition, the conventional bullet-proof plate has a problem in that since the ceramic panel is made of one plate, the protection performance of the damaged portion is lowered when damaged by impact.

In addition, since the above-mentioned conventional bulletproof boards must be molded immediately after the lamination work in the molds of the front and back panels made of fiber, the lamination work and the shaping work are performed in one cycle, so that it is impossible to separately store them after lamination, and this leads to simultaneous large quantities. There is a problem that the production of is impossible.

In addition, the conventional bullet-proof plate has a problem in that it takes excessive work since it must be sanded after performing the edge finishing bonding on the outer size of the product after molding.

In addition, the conventional bulletproof plate has a problem in that when the surface is a fabric material, it is vulnerable to bending or warping, and thus the shape of the inner bulletproof material may be exposed or cracked on the exterior.

Domestic registered patent No. 10-1262280 Domestic registered patent No. 10-1877218

The present invention is to solve the problems as described above, the metal case inside the composite material, the front material, the intermediate material of the ceramic material and the rear material of the composite material sequentially stacked, and then the metal cover to the metal case It is an object of the present invention to provide a bulletproof plate for an outer glove and a method for manufacturing the bulletproof plate for an outer glove that reduces the manufacturing cost by eliminating the mold for molding by forming the bulletproof plate by molding them in an autoclave in a stacked state.

In addition, another object of the present invention is to provide a bulletproof plate for an outer glove, and a method for manufacturing the bulletproof plate for an outer glove, which improves the ability to protect the multitan by arranging the intermediate ballistic material using a tile-type ceramic.

In addition, the present invention is for external gloves that allow simultaneous production of large quantities at the same time because it can be stored separately by taping and storing it before molding in a state in which the front bulletproof material, the middle bulletproof material, and the rear bulletproof material are stacked inside the case and the cover. Another object is to provide a method for manufacturing a bulletproof plate and a bulletproof plate for external gloves produced thereby.

In addition, another object of the present invention is to provide a bulletproof plate for an outer glove and a method for manufacturing an outer glove for the external glove, which can shorten the manufacturing time by relatively reducing the number of work hours, because only the outside of the case and the cover are sanded after molding. have.

In addition, since the surface of the present invention is a metallic material, the appearance of the product is smooth, warpage or warpage is not generated, and the shape of the inner bulletproof material is prevented from appearing or cracking. Another object is to provide a bulletproof plate for external gloves manufactured by the company.

Features of the present invention for achieving the above object,

In the form of a plate made of metal, it is formed in a polygonal shape according to the attachment position of the armored vehicle, and a case in which a side is bent and a cover formed on the upper surface of the case is formed in the same shape as the case in the form of a plate made of metal. Manufacturing case and cover manufacturing process; A front and rear bulletproof material manufacturing process of compression molding the front and rear bulletproof materials and then cutting to fit the shape of the case; An intermediate ballistic material processing step of processing an intermediate ballistic material made of a polygonal tile into a case shape; A stacking step of sequentially stacking the front bulletproof material, the middle bulletproof material, the rear bulletproof material and the cover inside the case, and laminating an adhesive film between them; A bagging process in which the case is placed in a vacuum bag and connected to an external vacuum pump to maintain airtightness; After putting the case contained in the vacuum bag into the autoclave or oven, the inside of the vacuum bag is vacuumed using the external vacuum pump, and a constant temperature and pressure are applied to the autoclave or oven for a certain period of time. A molding process for forming a bulletproof plate; A sanding process of sanding the rim of the bulletproof board with sanding equipment; And it characterized in that it consists of a coating process for coating the coating on the surface of the bulletproof plate.

Here, in the case and cover manufacturing process, aluminum having a thickness of 0.5 to 3 mm is cut with a laser, and in the case of the case, a border is bent.

Here, the front and back bulletproof materials are formed by laminating a plurality of two or more selected from aramid materials, carbon materials, ultra high molecular weight polyethylene (UHMWPE) materials, and adhesive films.

Here, in the manufacturing process of the front bulletproof material and the rear bulletproof material, a pressure of 80 to 210 kfg / cm 2 is applied at a temperature of 100 to 140 ° C. using a press for 0.5 to 5 hours.

Here, as the intermediate ballistic material, any one of ceramics selected from alumina (Al2O3), silicon carbide (SiC), and boron carbide (B4C) is used, and ceramics made in a polygonal tile shape such as square, triangle, or hexagon are used. It is processed into an array shape of the case and is stacked on the upper surface of the front bulletproof material.

Here, the molding process is a condition of a molding temperature of 100 to 140 ° C when using the autoclave, a molding pressure of 2 to 11 kfg / cm 2, a holding time of 0.5 to 5 hours, and a temperature of 100 to 140 ° C when using the oven. It is a condition of molding temperature, heating time of 1 ~ 10 ℃ / min, holding time of 0.5 ~ 5 hours, and vacuum pressure of -20 ~ -30㎜HG.

Here, in the coating process, the surface of the bulletproof plate is sanded and then washed, and after applying polyester to the surface of the bulletproof plate, drying is performed at a temperature of 20 to 60 ° C for 3 to 12 hours, and when the drying is completed, the bulletproof plate After washing, apply polyurea to the surface, and then dry for 3 to 12 hours at a temperature of 20 to 60 ° C.

Here, the bulletproof plate is provided with a through hole to be attached to the armored vehicle.

Other features of the present invention,

It features a bulletproof plate for outer gloves manufactured by the method for manufacturing a bulletproof plate for outer gloves.

According to the present invention, the method for manufacturing the armor plate for external gloves and the armor plate for external gloves manufactured thereby, the inner body of the composite material, the front material of the composite material, the middle material of the ceramic material and the rear material of the composite material are sequentially After lamination, the metal case is laminated on the metal case, and then molded in an autoclave to manufacture bulletproof plates, thereby eliminating the need for a mold for molding, thereby reducing manufacturing cost.

In addition, according to the present invention, by arranging the intermediate ballistic material using a tile-type ceramic, it is possible to improve the multi-ballistic protection ability.

In addition, according to the present invention, since the front bulletproof material, the middle bulletproof material and the rear bulletproof material are stacked inside the case and the cover, they can be stored by being taped before molding, so that they can be stored separately, so that a large amount of simultaneous production can be possible.

In addition, according to the present invention, since only the outer surfaces of the case and the cover are sanded after molding, it is possible to shorten the production time by relatively reducing the number of work hours.

In addition, according to the present invention, since the surface is a metal material, the appearance of the product is smooth, warpage or distortion is not generated, and the shape of the inner bulletproof material is exposed or cracks can be prevented.

1 is a view showing the configuration of a conventional bulletproof plate.
Figure 2 is a perspective view showing the configuration of a bulletproof plate for external gloves according to the present invention.
3 is an exploded perspective view of FIG. 2.
4 is a cross-sectional view taken along line AA of FIG. 2.
5 is a process diagram for explaining a method for manufacturing a bulletproof plate for external gloves according to the present invention.
6A to 6E are explanatory views for explaining a method of manufacturing a bulletproof plate for external gloves according to the present invention.

Hereinafter, with reference to the accompanying drawings, the configuration of the armor plate for external gloves according to the present invention will be described in detail as follows.

In the following description of the present invention, when it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, detailed descriptions thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or practice. Therefore, the definition should be made based on the contents throughout this specification.

Figure 2 is a perspective view showing the configuration of a bulletproof plate for external gloves according to the present invention, Figure 3 is an exploded perspective view of Figure 2, Figure 4 is a cross-sectional view taken along part A-A of Figure 2.

Referring to Figures 2 to 4, the outer glove bulletproof plate 1 according to the present invention is the case 10, the front bulletproof material 20, the middle bulletproof material 30, the rear bulletproof material 40 and the cover It consists of 50.

First, the case 10 is formed in a polygonal shape according to the attachment position of the armored vehicle in the form of a plate made of a lightweight metal material such as aluminum, and side surfaces are bent to form a stacking space therein. At this time, the case 10 may be plated (anodizing, chromate, etc.) to prevent corrosion.

And, the front bulletproof material 20 is aramid material (fabric, prepreg, UD, etc.), carbon material (fabric, prepreg, UD, etc.), ultra high molecular weight polyethylene (UHMWPE, Ultra High Molecular Weight Poly-Ethylene) material (fabric , Prepreg, UD, etc.), two or more selected from adhesive films (EVA, TPU, etc.) are laminated by 1 to 100 layers, press-molded, cut, and laminated on the inner surface of the case 10.

In addition, any one of the ceramics selected from alumina (Al2O3), silicon carbide (SiC), and boron carbide (B4C) is used as the intermediate ballistic material 30.

At this time, the intermediate ballistic material 30 is processed into an array shape of the case 10, the ceramics produced in the shape of a tile having a polygonal shape such as a square, a triangle, and a hexagon are stacked and arranged on the upper surface of the front bulletproof material 20.

Subsequently, the rear bulletproof material 40 is aramid material (fabric, prepreg, UD, etc.), carbon material (fabric, prepreg, UD, etc.), ultra high molecular weight polyethylene (UHMWPE, Ultra High Molecular Weight Poly-Ethylene) material (fabric , Prepreg, UD, etc.), two or more selected from adhesive films (EVA, TPU, etc.) are laminated by 1 to 100 layers, press-molded, cut, and stacked on the upper surface of the intermediate bulletproof material 30.

Subsequently, the cover 50 is formed in the same shape as the case 10 in the form of a plate made of a metal material such as aluminum, and is stacked on the upper surface of the rear bulletproof material 40. At this time, the cover 50 may be plated (anodizing, chromate, etc.) to prevent corrosion.

On the other hand, the bulletproof plate 1 for external gloves according to the present invention is preferably provided with a through hole (1a) to be attached to the armored vehicle.

Hereinafter, with reference to the accompanying drawings, a method for manufacturing a bulletproof plate for external gloves according to the present invention will be described in detail as follows.

6A to 6E are explanatory views for explaining a method of manufacturing a bulletproof plate for external gloves according to the present invention.

Referring to Figure 6a to 6e, the outer glove bulletproof plate manufacturing method according to the present invention, the case and cover manufacturing process (S10), the front and rear bulletproof material manufacturing process (S20), and the intermediate bulletproof material manufacturing process ( S30), a lamination process (S40), a bagging process (S50), a molding process (S60), a sanding process (S70) and a coating process (S80).

《Case and Cover Manufacturing Process-S10》

First, as shown in FIG. 6A, the case 10 is processed into a laser in a developed shape, and then a bent portion is bent to manufacture the case 10, and the cover 50 is laser-processed. At this time, the case 10 and the cover 50 is preferably 0.5 to 3 mm in thickness, and when the thickness is thick, a bending part is marked, and a heater capable of controlling temperature at the marked part is used at 350 to 700 ° C. Heat until local. At this time, the heating range is preferably limited to 10 to 20 mm.

Then, after heating, it is placed as a bending machine as quickly as possible, and bent 3 to 5 times, and after cracking, it is checked whether cracks are generated and stabilized sufficiently at room temperature.

Subsequently, the impurities on the surfaces of the case 10 and the cover 50 are removed, followed by degreasing and washing, followed by pickling, flux treatment and drying.

Subsequently, it is produced by precipitation in a plating bath for anodizing and chromate plating, followed by water cooling and drying. At this time, the plating layer thickness is preferably 5 ~ 15㎛.

<< front and back bulletproof material manufacturing process-S20 >>

And, as shown in Figure 6b, a large number of two or more selected from aramid material, carbon material, ultra high molecular weight polyethylene (UHMWPE, Ultra High Molecular Weight Poly-Ethylene) material, adhesive film cut to a size larger than the size of the case 10 After lamination, the pressure was applied to a pressure of 80 to 210 kfg / cm2 for 0.5 to 5 hours at a temperature of 100 to 140 ° C, and then integrated, and then cut to fit the shape of the case 10 with a water jet to cut the front bulletproof material (20 ) And the rear bulletproof material 40 are respectively manufactured.

《Middle bulletproof material manufacturing process-S30》

Subsequently, as shown in FIG. 6C, the intermediate ballistic material 30 in the form of a tile having a polygonal shape such as a square, a triangle, and a hexagon is processed into a shape of a case.

<< lamination process-S40 >>

And, as shown in Figure 6d, the front body bulletproof material 20, the middle bodyguard material 30, the rear body armor material 40 and the cover 50 are sequentially stacked inside the case 10 to form a laminate 1 '). At this time, it is preferable to insert an adhesive film (F) on the front and back of each laminate.

<< bagging process-S50 >>

Then, as shown in Figure 6e, a bagging film (61), a breath cloth (Breather Cloth) (63), and a release film (Release Film) 65 are placed in order on a forming work surface and then laminated. Lay the water (1 '), laminated with a release film (65), breath cloth (63), and bagging film (61), and then sealant tape (Sealant tape) between the bagging film (61) and the bagging film (61) ) (67) is adhered to the rim to make sealing to make a vacuum bag (60), and then connects a vacuum line and a vacuum line connected to an external vacuum pump (not shown) to maintain airtightness.

<< molding process-S60 >>

Subsequently, the vacuum bag 60 containing the laminate 1 'is introduced into the autoclave (not shown), and then the inside of the autoclave is made into a vacuum by using an external vacuum pump to make the inside of the vacuum bag 60 vacuum. At a temperature of ~ 140 ° C, a pressure of 2 to 11 kfg / cm 2 is applied for 0.5 to 5 hours to mold the bulletproof plate (1). At this time, an oven can be used in place of the autoclave, and when using the oven, a molding temperature of 100 to 140 ° C, a heating time of 1 to 10 ° C / min, a holding time of 0.5 to 5 hours, and a vacuum pressure of -20 to 30inchHG Is the condition of.

《Sanding Process-S70》

When the molding is completed, the adhesive film F melted and flowed from the inside of the case 10 is removed by sanding the bulletproof plate 1 according to a predetermined shape.

<< coating process -S80 >>

Finally, the entire bulletproof plate (1) was washed with IPA (Isopropyl Alcohol), coated on the surface with polyester (undercoat), dried at a temperature of 20 to 60 ° C for 3 to 12 hours, and when drying was completed, the bulletproof plate ( 1) After washing with IPA (Isopropyl Alcohol), apply polyurea (top coat) on the surface, and then dry it at a temperature of 20 to 60 ° C for 3 to 12 hours to form a coating layer. At this time, it is preferable that the thickness of the coating layer by polyurea is 0.8 mm or less. On the other hand, after applying the polyester and polyurea, respectively, if bubbles are generated, part sanding and IPA washing are necessary to repair the parts, and the labeling position on the back of the bulletproof board 1 is masked using a masking jig and embossed. Then remove the masking jig.

The present invention can be variously modified and can take various forms, and the detailed description of the invention has been described only for the specific embodiments accordingly. However, it should be understood that the present invention is not limited to the specific forms mentioned in the detailed description, but rather includes all modifications, equivalents, and substitutes within the spirit and scope of the present invention as defined by the appended claims. Should be.

1: Bulletproof board 1 ': Laminate
10: case 20: front bulletproof material
30: middle bulletproof material 40: rear bulletproof material
50: cover 60: vacuum bag
F: Film

Claims (9)

In the form of a plate made of metal, it is formed in a polygonal shape according to the attachment position of the armored vehicle. Manufacturing case and cover manufacturing process;
A front and rear bulletproof material manufacturing process of compression molding the front and rear bulletproof materials and then cutting to fit the shape of the case;
An intermediate ballistic material processing step of processing an intermediate ballistic material made of a polygonal tile into a case shape;
A stacking step of sequentially stacking the front bulletproof material, the middle bulletproof material, the rear bulletproof material and the cover inside the case, and laminating an adhesive film between them;
A bagging process in which the case is placed in a vacuum bag and connected to an external vacuum pump to maintain airtightness;
After putting the case contained in the vacuum bag into the autoclave or oven, the inside of the vacuum bag is vacuumed using the external vacuum pump, and a certain temperature and pressure are applied to the autoclave or oven for a certain period of time. A molding process for forming a bulletproof plate;
A sanding process of sanding the rim of the bulletproof board with sanding equipment; And
Bulletproof plate manufacturing method for an external glove, characterized in that consisting of a coating process for coating the coating on the surface of the bulletproof plate. According to claim 1,
The case and cover manufacturing process,
A method of manufacturing a bulletproof plate for external gloves, characterized in that aluminum with a thickness of 0.5 to 3 mm is cut with a laser, and in the case, the rim is bent. According to claim 1,
The front bulletproof material and the rear bulletproof material,
Aramid material, carbon material, ultra high molecular weight polyethylene (UHMWPE, Ultra High Molecular Weight Poly-Ethylene) material, a method of manufacturing a bulletproof plate for external gloves, characterized in that formed by laminating a plurality of two or more selected from the adhesive film. According to claim 1,
The front bulletproof material and the rear bulletproof material manufacturing process,
Method for manufacturing a bulletproof plate for external gloves, characterized in that a pressure of 80 to 210 kfg / cm 2 is applied for 0.5 to 5 hours at a temperature of 100 to 140 ° C using a press. According to claim 1,
The intermediate bulletproof material,
Any one ceramic selected from alumina (Al2O3), silicon carbide (SiC), and boron carbide (B4C) is used. A method for manufacturing a bulletproof plate for external gloves, characterized in that it is arranged and stacked on an upper surface of the front bulletproof material. According to claim 1,
The molding process,
When using the autoclave, the conditions are 100 ~ 140 ℃ molding temperature, 2 ~ 11kfg / ㎠ molding pressure, 0.5 ~ 5 hours holding time, and when using the oven, 100 ~ 140 ℃ molding temperature, 1 ~ 10 ℃ / Minute heating time, 0.5 to 5 hours of holding time, -20 ~ -30㎜HG vacuum pressure manufacturing method for the outer glove, characterized in that the conditions of the vacuum pressure. According to claim 1,
The coating process,
After the surface of the bulletproof board is sanded and washed, and after applying polyester to the surface of the bulletproof board and drying for 3 to 12 hours at a temperature of 20 to 60 ° C, when drying is completed, the bulletproof board is washed and then polyurea is applied to the surface. After coating the method for manufacturing a bulletproof plate for external gloves, characterized in that it is dried for 3 to 12 hours at a temperature of 20 to 60 ° C. According to claim 1,
The bulletproof plate,
Method for manufacturing a bulletproof plate for external gloves, characterized in that a through hole is provided to be attached to the armored vehicle. A bulletproof plate for an outer glove manufactured by the method for manufacturing the bulletproof plate for an outer glove of claim 1.

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