CN215639068U - Nested whole-plate ceramic composite plate capable of preventing multiple bullets - Google Patents
Nested whole-plate ceramic composite plate capable of preventing multiple bullets Download PDFInfo
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- CN215639068U CN215639068U CN202023227593.5U CN202023227593U CN215639068U CN 215639068 U CN215639068 U CN 215639068U CN 202023227593 U CN202023227593 U CN 202023227593U CN 215639068 U CN215639068 U CN 215639068U
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Abstract
The utility model discloses a multi-bullet-proof nested whole-plate ceramic composite plate which comprises a bulletproof ceramic plate module and a PE or aramid backboard. The bulletproof ceramic is modularized, the embedded whole plate type bulletproof ceramic is composed of 3, 6 or a plurality of bulletproof ceramic wafer modules, the bulletproof ceramic wafer modules are spliced into a nested structure through grooves and convex grooves on the corresponding side edges of the spliced part, and gaps among the bulletproof ceramic wafer modules are bonded by using an adhesive and then preformed in a hot-pressing tank, so that the bulletproof ceramic has the appearance of a whole plate and the performance of preventing multiple bullets; the preformed nested whole plate type bulletproof ceramic and PE or aramid bulletproof back plate material form an integrated structure in the autoclave again. The ceramic composite board has the advantages of high bulletproof performance and multiple bullet prevention, and is lighter in weight under the same bulletproof performance.
Description
Technical Field
The utility model relates to the field of research of human body protection tools, in particular to a nested whole plate type ceramic composite plate capable of preventing multiple bullets.
Background
The form of modern war is updated day by day, in the future of foreseeing, the war has been changed from traditional large-scale, high intensity attack and defense combat into low intensity military operation such as peacetime, anti-terrorism and special combat, and in this kind of military operation, the infantry suffers from the risk of light weapon shot and fragmentation and is increasing more and more, and under this condition, individual soldier's human body protective equipment will play the vital role in protecting soldier's life, reducing the degree of injury, maintaining army's moral character and fighting ability, guaranteeing that the action is successful.
In the traditional protective materials, the ceramic has the characteristics of high strength, light weight, good wear resistance, good corrosion resistance and the like, has good impact resistance, and is widely applied to protective armors of equipment such as body armor, bulletproof helmets, vehicles, airplanes and the like at present. However, ceramics are highly brittle when used as a whole, and fracture occurs after being subjected to high-speed impact, and thus their resistance to bullets is poor.
In order to improve the multi-elasticity resistance of the ceramic, a high-strength high-hardness ceramic hard layer and a high-strength high-modulus polymer soft layer are technically combined to prepare the composite protective harness, and the harness integrates the advantages of the hard layer and the soft layer, and has excellent protective performance and wide market space.
In the prior art, there are various ways to design ceramic composite structures. The common idea is that a monolithic ceramic plate with a single curved surface or multiple curved surfaces is bonded to the surface of a metal plate or a composite material, the shot is destroyed by the high hardness and high wear resistance of the ceramic, the shot is forced to be decelerated and crushed, and then the shot fragments with the deceleration and deceleration functions are captured by the metal plate or the composite material. However, when a projectile hits the ceramic slab, under strong impact, cracks tend to propagate from the impact point causing the entire slab to be broken and split into many fragments, resulting in the breaking and falling of a single piece of material, increasing the area of non-ballistic resistance, causing failure of the ballistic resistance.
Another idea is to adopt a layered composite structure design: the composite material is prepared by adding softer or tougher material layers (generally called as an interlayer, an isolation layer or an interface layer) made of different materials between brittle ceramic layers, and the material with the structure is an energy dissipation structure in a stress field and can overcome the fatal defect of sudden fracture of a ceramic material. When the material is bent or impacted, the crack is blocked, passivated and deflected at the layer interface for many times, and the stress concentration effect of the crack tip under the load is effectively weakened. Meanwhile, the strength of the material is less affected by defects, and the material is a defect-resistant material, and the toughness of the ceramic material can be greatly improved by the structure.
The typical design is as disclosed in patent number CN202770328U, which comprises five layers of materials, an anti-collapse layer composed of polycarbonate or fiber composite material, a ceramic layer composed of plate or particle ceramic element, a collision layer composed of TC4 titanium alloy or fiber composite material, an energy absorption and rebound layer composed of ultra-high molecular weight polyethylene fiber non-woven cloth or foamed aluminum and ultra-high molecular weight polyethylene fiber non-woven cloth, and a resistance layer composed of TC4 titanium alloy or fiber composite material, wherein the layers are bonded by using a bonding agent, and the surface density is 60-90 Kg/m 2. The bulletproof material with the composite structure has the advantages of low volume weight, high bulletproof performance and multiple bullet resistance, can be used as a protective material for medium and small-caliber armor-piercing combustion bullets with the diameter of 7.62mm or more, and can also be used as decks and shields of ships.
However, such materials have the disadvantages that the molding and sintering processes are very complicated (including complex processes such as multiple molding and pouring, hot press molding, connection of different isomers and the like), and the raw materials are numerous and complicated, and part of the raw materials are expensive, which is not favorable for reducing the cost and producing on a large scale.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model discloses a nested whole-plate ceramic composite plate for preventing multiple bullets, which comprises the following technical scheme:
the nested whole-plate ceramic composite plate comprises a bulletproof ceramic plate module and a PE or aramid backboard. The bulletproof ceramic is modularized, the embedded whole plate type bulletproof ceramic is composed of 3, 6 or a plurality of bulletproof ceramic wafer modules, the bulletproof ceramic wafer modules are spliced into a nested structure through grooves and convex grooves on the corresponding side edges of the spliced part, and gaps among the bulletproof ceramic wafer modules are bonded by using an adhesive and then preformed in a hot-pressing tank, so that the bulletproof ceramic has the appearance of a whole plate and the performance of preventing multiple bullets; the preformed nested whole plate type bulletproof ceramic and PE or aramid bulletproof back plate material form an integrated structure in the autoclave again.
As a further scheme of the utility model, the bulletproof ceramic wafer module in the multi-bullet-proof nested whole-plate ceramic composite plate is made of one or more of aluminum oxide, silicon carbide, silicon nitride and boron carbide. The boron carbide has the highest hardness and the lowest density, is considered as ideal bulletproof ceramic, is expensive only and has relatively limited application range; although the alumina has lower hardness and higher density, the alumina has good sintering performance, mature process and low production cost, thereby having wide application; the silicon carbide material has the bulletproof performance between that of boron carbide and aluminum oxide, and has high hardness and elastic modulus and intermediate density.
As a further scheme of the utility model, the bullet-proof ceramic wafer modules in the nested ceramic composite board for preventing multiple bullets have 3, 6 or a plurality of bullet-proof ceramic wafer modules, and are spliced into a nested structure through the grooves and the convex grooves on the corresponding side edges of the splicing positions. The ceramic composite board formed by nesting and splicing the ceramic sheets can slow down the transmission of stress waves in the bulletproof process, so that the multi-elasticity resistance of the ceramic composite bulletproof panel is enhanced. And when some ceramic plates are impacted by a plurality of times of bullets to cause the bulletproof effect to be poor or invalid, the ceramic plates can be conveniently replaced, and the battlefield and the rear can be conveniently maintained in time.
The bulletproof ceramic sheets have 3, 6 or a plurality of sheets. The preparation method is modularization of the whole ceramic, namely, the whole ceramic is separately prepared and molded. The modularized ceramic plate is beneficial to large-scale forming and processing, and is easier to splice into a nested structure, so that the production efficiency is improved. The number of the bulletproof ceramic plates is too low, the bulletproof ceramic plates cannot play a modularization role, large-area transmission of cracks is easily caused, multiple bullet failures are prevented, the area of a single ceramic plate is large due to the low number of the ceramic plates, and the nested ceramic composite plate is not beneficial to being processed into a complex curved surface structure which accords with human morphology. On the other hand, too many bulletproof ceramic sheets are also disadvantageous in bulletproof property, and cause an increase in processing cost and complication of battlefield maintenance.
The bulletproof ceramic chip module is characterized in that the grooves and the convex grooves are arranged on the side edges corresponding to the splicing position of the bulletproof ceramic chip module, the diameter of the grooves is 1-16mm, the distance between the grooves is 10-20mm, the diameter of the convex grooves is 1-16mm, the distance between the convex grooves is 10-20mm, and the depth of the grooves is basically matched with the length of the convex grooves. The diameter of the groove or the convex groove refers to the length of one side of the groove or the convex groove parallel to the side face of the bulletproof ceramic wafer module, and the distance of the groove or the convex groove is the distance between the adjacent grooves or the convex grooves. The diameter is less than 1mm, so that weak impact-resistant areas exist at the splicing positions of the bulletproof ceramic wafer modules easily, the processing and the splicing of the ceramic wafer modules are not facilitated, the nesting and meshing degree among the bulletproof ceramic modules is not enough easily due to the overlarge diameter, and the subsequent splicing and hot-press forming processes are influenced. The same principle is followed for the setting of the spacing.
The depth of the groove of the bulletproof ceramic wafer module is basically matched with the length of the convex groove. The depth of the groove is the length of one side of the groove perpendicular to the side face of the bulletproof ceramic wafer module, and the length of the convex groove is the length of one side of the convex groove perpendicular to the side face of the bulletproof ceramic wafer module. The depth of the groove is 1-5mm, the length of the convex groove is 0.9-4.9mm, the nesting is convenient, and the modularized splicing gap is not influenced by the processing precision of the convex groove and the groove.
As a further scheme of the utility model, the gaps among the bulletproof ceramic wafer modules are bonded by using an adhesive and then preformed in an autoclave, so that the bulletproof ceramic wafer module has the appearance of a whole plate and the performance of preventing multiple bullets. The adhesive is a modified impact-resistant epoxy resin adhesive.
As a further scheme of the utility model, the modified impact-resistant epoxy resin adhesive in the multi-bullet-prevention nested full-page ceramic composite board is prepared by the following steps of: hydroxyl-terminated nitrile rubber: epoxy diluent: epoxy curing agent: the nano alumina is 100: (10-15): (15-25): (20-30): and (2) uniformly mixing and stirring the components according to the mass ratio, and then adding butanone into the mixture, wherein the butanone is added in an amount so that the solid content of the epoxy adhesive is 75-80%.
The epoxy value of the epoxy resin is 0.50-0.52mol/100g, and the epoxy resin is common commercial products, such as CYD-128 resin of the ba Ling petrochemical industry, DER331 resin of the Dow chemical industry, 828XA resin of the Shell company, NPEL128 resin of the New south Asia Co., Ltd, 850S resin of the Di Eisen, YD128 resin formed by Dongdu and the like. The resin as main resin has high modulus, good adhesion to PE or aramid backboard and ceramic plate, and high temperature resistance in ceramic sintering furnace.
The hydroxyl-terminated butyl rubber is a commercial product, the molecular weight is 2000-3000, and the hydroxyl value is 0.4-0.5 mmol/g. The introduction of the hydroxyl-terminated butyl rubber mainly improves the toughness and impact resistance of the epoxy adhesive, improves the application performances such as elongation and the like, provides a good stress buffering effect between the ceramic chip and the epoxy adhesive, and reduces or avoids the breakage and failure of adjacent ceramic chips due to stress concentration or crack transmission.
The epoxy diluent is a common commercial product, and is divided into a glycidyl ether type epoxy diluent, a glycidyl ester type epoxy diluent and an alicyclic epoxy diluent according to the structure, wherein the most common diluent is 501, and manufacturers known in the industry comprise Anhui Hengyuan, Nanya New Material Co., Ltd.
According to a further scheme of the utility model, in the nested full-page ceramic composite board capable of preventing multiple bullets, the butanone in the epoxy adhesive is added so that the solid content of the epoxy adhesive is 75-80%. The epoxy adhesive with too low solid content is easy to generate the common sagging phenomenon in the coating between the PE or aramid backboard and the ceramic sheet, so that the thickness of the coating is thin or uneven; similarly, too high solid content also leads to too high viscosity of the epoxy adhesive, which is not favorable for processing the ceramic composite board at normal construction temperature.
As a further scheme of the utility model, the nested full-page ceramic composite board capable of preventing multiple bullets has the advantages of high bullet-proof performance and multiple bullet prevention, is lighter in weight under the same bullet-proof performance, and is applied to the field of research of human body protection harnesses.
The technical scheme provided by the embodiment of the utility model has the following beneficial effects:
when the nested full-page ceramic composite board is impacted, due to the buffering effect of the epoxy adhesive between the ceramic pieces, the influence on the adjacent ceramic pieces can be reduced, so that the damage of the whole composite structure is limited in a local area, and the nested full-page ceramic composite board is particularly suitable for the performance requirement of multiple bullet prevention.
In addition, the nested composite plate can easily form various curved surfaces so as to manufacture protective structures with various shapes.
Secondly, the nested composite board has lighter weight under the same bulletproof performance.
Finally, the nested composite board has the advantages of wide raw material source, low cost, simple production process and stable and controllable quality.
Drawings
FIG. 1 is a schematic nested view of 6 nested composite panels of modular ceramic according to the present invention;
FIG. 2 is a perspective view of a nested composite panel of 6 modular ceramics according to the present invention;
FIG. 3 is a detailed view of the grooves and tongues of the modular ceramic splice of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in further detail below. In the following examples, those whose operations are not subject to the conditions indicated, are carried out according to the conventional conditions or conditions recommended by the manufacturer.
Example 1
The embodiment of the utility model prepares a nested ceramic composite board for preventing multiple bullets, which comprises the following specific steps:
adding 100 parts of epoxy resin CYD128, 12 parts of hydroxy-terminated butyl rubber, 20 parts of 501 epoxy diluent, 30 parts of 593 epoxy curing agent, 2 parts of nano alumina and butanone solution into a charging basket, and uniformly stirring and mixing to prepare the epoxy adhesive with 75% of solid.
3 alumina ceramic wafer modules are selected, the diameter of each alumina ceramic wafer module is 5mm, the distance between every two adjacent convex grooves or grooves is 10mm, the depth of each groove is 2mm, and the length of each convex groove is 1.9 mm. The modules are spliced into a nested structure through the positioners, gaps among the modules are coated and filled with the adhesive, organic solvents are removed through pre-drying in a 40 ℃ blast drying oven, and the modules are transferred to a hot-pressing tank for high-temperature curing and sintering molding, so that the modules have the appearance of a whole plate and the performance of preventing multiple elasticity.
And hot-pressing the preformed embedded whole-plate type bulletproof ceramic and PE bulletproof back plate material in a hot-pressing tank to form an integrated structure to obtain the embedded whole-plate type ceramic composite plate.
Example 2
The embodiment of the utility model prepares a nested ceramic composite board for preventing multiple bullets, which comprises the following specific steps:
adding 100 parts of epoxy resin DER331, 13 parts of hydroxy-terminated butyl rubber, 25 parts of 501 epoxy diluent, 20 parts of 593 epoxy curing agent, 2 parts of nano alumina into a charging basket, adding butanone solution, stirring and mixing uniformly to prepare the epoxy adhesive with 80% of solid.
3 silicon carbide ceramic wafer modules are selected, the diameter of each silicon carbide ceramic wafer module is 10mm, the distance between every two adjacent convex grooves or grooves is 15mm, the depth of each groove is 2mm, and the length of each convex groove is 1.9 mm. The modules are spliced into a nested structure through the positioners, gaps among the modules are coated and filled with the adhesive, organic solvents are removed through pre-drying in a 40 ℃ blast drying oven, and the modules are transferred to a hot-pressing tank for high-temperature curing and sintering molding, so that the modules have the appearance of a whole plate and the performance of preventing multiple elasticity.
And hot-pressing the preformed embedded whole-plate type bulletproof ceramic and PE bulletproof back plate material in a hot-pressing tank to form an integrated structure to obtain the embedded whole-plate type ceramic composite plate.
Example 3
The embodiment of the utility model prepares a nested ceramic composite board for preventing multiple bullets, which comprises the following specific steps:
100 parts of shell company 828XA resin, 15 parts of hydroxy-terminated butyl rubber, 20 parts of 501 epoxy diluent, 25 parts of 593 epoxy curing agent and 4 parts of nano alumina are added into a charging basket, and a butanone solution is added, stirred and mixed uniformly to prepare the 78% solid epoxy adhesive.
3 silicon nitride ceramic wafer modules are selected, the diameter of each silicon nitride ceramic wafer module is 3mm, the distance between every two adjacent convex grooves or grooves is 15mm, the depth of each groove is 1mm, and the length of each convex groove is 0.9 mm. The modules are spliced into a nested structure through the positioners, gaps among the modules are coated and filled with the adhesive, organic solvents are removed through pre-drying in a 40 ℃ blast drying oven, and the modules are transferred to a hot-pressing tank for high-temperature curing and sintering molding, so that the modules have the appearance of a whole plate and the performance of preventing multiple elasticity.
And hot-pressing the preformed embedded whole-plate type bulletproof ceramic and PE bulletproof back plate material in a hot-pressing tank to form an integrated structure to obtain the embedded whole-plate type ceramic composite plate.
Example 4
The embodiment of the utility model prepares a nested ceramic composite board for preventing multiple bullets, which comprises the following specific steps:
adding 100 parts of epoxy resin CYD128, 10 parts of hydroxy-terminated butyl rubber, 25 parts of 501 epoxy diluent, 28 parts of 593 epoxy curing agent, 2 parts of nano alumina and butanone solution into a charging basket, and uniformly stirring and mixing to prepare the 78% solid epoxy adhesive.
3 boron carbide ceramic wafer modules are selected, the diameter of each boron carbide ceramic wafer module is 1mm, the distance between every two adjacent convex grooves or grooves is 10mm, the depth of each groove is 1mm, and the length of each convex groove is 0.9 mm. The modules are spliced into a nested structure through the positioners, gaps among the modules are coated and filled with the adhesive, organic solvents are removed through pre-drying in a 40 ℃ blast drying oven, and the modules are transferred to a hot-pressing tank for high-temperature curing and sintering molding, so that the modules have the appearance of a whole plate and the performance of preventing multiple elasticity.
And hot-pressing the preformed embedded whole-plate type bulletproof ceramic and PE bulletproof back plate material in a hot-pressing tank to form an integrated structure to obtain the embedded whole-plate type ceramic composite plate.
Example 5
The embodiment of the utility model prepares a nested ceramic composite board for preventing multiple bullets, which comprises the following specific steps:
adding 100 parts of epoxy resin CYD128, 15 parts of hydroxy-terminated butyl rubber, 15 parts of 501 epoxy diluent, 25 parts of 593 epoxy curing agent and 5 parts of nano alumina into a charging basket, adding butanone solution, stirring and mixing uniformly to prepare the 78% solid epoxy adhesive.
6 aluminum oxide ceramic wafer modules are selected, the diameter of each aluminum oxide ceramic wafer module is 10mm, the distance between every two adjacent convex grooves or grooves is 20mm, the depth of each groove is 3mm, and the length of each convex groove is 2.9 mm. The modules are spliced into a nested structure through the positioners, gaps among the modules are coated and filled with the adhesive, organic solvents are removed through pre-drying in a 40 ℃ blast drying oven, and the modules are transferred to a hot-pressing tank for high-temperature curing and sintering molding, so that the modules have the appearance of a whole plate and the performance of preventing multiple elasticity.
And hot-pressing the preformed embedded whole-plate type bulletproof ceramic and PE bulletproof back plate material in a hot-pressing tank to form an integrated structure to obtain the embedded whole-plate type ceramic composite plate.
Example 6
The embodiment of the utility model prepares a nested ceramic composite board for preventing multiple bullets, which comprises the following specific steps:
100 parts of dear 850S epoxy resin, 15 parts of hydroxy-terminated butyl rubber, 20 parts of 501 epoxy diluent, 20 parts of 593 epoxy curing agent and 5 parts of nano alumina are added into a charging basket, and a butanone solution is added, stirred and mixed uniformly to prepare the epoxy adhesive with 80% of solid.
6 aluminum oxide ceramic wafer modules are selected, the diameter of each aluminum oxide ceramic wafer module is 16mm, the distance between every two adjacent convex grooves or grooves is 15mm, the depth of each groove is 5mm, and the length of each convex groove is 4.9 mm. The modules are spliced into a nested structure through the positioners, gaps among the modules are coated and filled with the adhesive, organic solvents are removed through pre-drying in a 40 ℃ blast drying oven, and the modules are transferred to a hot-pressing tank for high-temperature curing and sintering molding, so that the modules have the appearance of a whole plate and the performance of preventing multiple elasticity.
And hot-pressing the preformed embedded whole-plate type bulletproof ceramic and aramid fiber bulletproof back plate material in a hot-pressing tank to form an integrated structure to obtain the embedded whole-plate type ceramic composite plate.
Example 7
The embodiment of the utility model prepares a nested ceramic composite board for preventing multiple bullets, which comprises the following specific steps:
adding 100 parts of epoxy resin CYD128, 15 parts of hydroxy-terminated butyl rubber, 20 parts of 501 epoxy diluent, 25 parts of 593 epoxy curing agent, 5 parts of nano alumina into a charging basket, adding butanone solution, stirring and mixing uniformly to prepare the 78% solid epoxy adhesive.
6 silicon carbide ceramic wafer modules are selected, the diameter of each silicon carbide ceramic wafer module is 15mm, the distance between every two adjacent convex grooves or grooves is 15mm, the depth of each groove is 5mm, and the length of each convex groove is 4.9 mm. The modules are spliced into a nested structure through the positioners, gaps among the modules are coated and filled with the adhesive, organic solvents are removed through pre-drying in a 40 ℃ blast drying oven, and the modules are transferred to a hot-pressing tank for high-temperature curing and sintering molding, so that the modules have the appearance of a whole plate and the performance of preventing multiple elasticity.
And hot-pressing the preformed embedded whole-plate type bulletproof ceramic and aramid fiber bulletproof back plate material in a hot-pressing tank to form an integrated structure to obtain the embedded whole-plate type ceramic composite plate.
Example 8
The embodiment of the utility model prepares a nested ceramic composite board for preventing multiple bullets, which comprises the following specific steps:
adding 100 parts of Dongdong-formed YD128 epoxy resin, 15 parts of hydroxy-terminated butyl rubber, 20 parts of 501 epoxy diluent, 25 parts of 593 epoxy curing agent and 5 parts of nano alumina into a charging basket, adding butanone solution, stirring and mixing uniformly to prepare the epoxy adhesive with 78% of solid.
6 boron carbide ceramic wafer modules are selected, the diameter of each boron carbide ceramic wafer module is 15mm, the distance between every two adjacent convex grooves or grooves is 15mm, the depth of each groove is 5mm, and the length of each convex groove is 4.9 mm. The modules are spliced into a nested structure through the positioners, gaps among the modules are coated and filled with the adhesive, organic solvents are removed through pre-drying in a 40 ℃ blast drying oven, and the modules are transferred to a hot-pressing tank for high-temperature curing and sintering molding, so that the modules have the appearance of a whole plate and the performance of preventing multiple elasticity.
And hot-pressing the preformed embedded whole-plate type bulletproof ceramic and PE bulletproof back plate material in a hot-pressing tank to form an integrated structure to obtain the embedded whole-plate type ceramic composite plate.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
The nested ceramic composite board for preventing multiple bullets has the advantages of high bullet-proof performance and multiple bullet prevention, and is light in weight under the same bullet-proof performance. Is applied to the research field of human body protection tools.
The bulletproof performance of the nested ceramic composite boards provided in examples 1 to 8 was tested, and the nested ceramic composite boards provided in examples 1 to 8 were respectively pasted with plasticine to observe whether the ceramic composite boards were penetrated by bullets or not, and to test the depth of craters after penetration of bullets. The jointed ceramic composite board is vertically shot by a 7.62mm steel core bullet emitted by a 53-type rifle, the depth of a crater is reflected by the back convex deformation value of plasticine, and the detection result is shown in table 1.
TABLE 1 bulletproof Performance test of nested ceramic composite Panel
From the above data, it can be seen that the nested full-page ceramic composite boards provided in examples 1 to 8 are not penetrated by the bullet after being impacted by the single shot and the multiple shot, and not only have better single shot bullet prevention performance, but also have good multiple shot prevention performance, and have lighter weight under the same bulletproof performance.
The utility model discloses a multi-bullet-proof ceramic nested full-page composite board, which is applied to the field of research of human body protection tools.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (2)
1. A nested whole-plate ceramic composite plate capable of preventing multiple bullets is characterized by comprising a bulletproof ceramic plate module and a PE or aramid backboard; the nested whole plate type bulletproof ceramic consists of 3 or 6 or a plurality of bulletproof ceramic wafer modules except for 3 or 6, and the grooves and the convex grooves of the corresponding side edges at the splicing positions of the bulletproof ceramic wafer modules are spliced into a nested structure; the bulletproof ceramic wafer modules are bonded through an adhesive and preformed in a hot-pressing tank, and the preformed embedded whole plate type bulletproof ceramic and the PE or aramid bulletproof back plate are formed into an integral structure through hot-pressing.
2. The multiple-bullet-resistant nested whole-plate ceramic composite board according to claim 1, wherein the splicing positions of the bulletproof ceramic wafer modules are provided with grooves and convex grooves at corresponding sides, the diameter of each groove is 1-16mm, the distance between the grooves is 10-20mm, the diameter of each convex groove is 1-16mm, the distance between the convex grooves is 10-20mm, the depth of each groove is 1-5mm, and the length of each convex groove is 0.9-4.9mm, so that nesting is facilitated, and the splicing gaps of the modules are not influenced by the machining precision of the convex grooves and the concave grooves.
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