575results about "Armour plates" patented technology

An apparatus and method for a protective attendant station (PAS) that may be either mobile or stationary. The PAS has an upper protective portion having a front and two side bullet-resistant transparent / translucent panels and a lower protective portion that uses bullet-resistant material (e.g., stainless steel) and wherein, in the mobile PAS version, the lower protective portion rests upon and is secured to wheel / castor assemblies. The front panel comprises one of several protective window configurations (PWCs) that facilitate speaking between the attendant and another person, while protecting the attendant from the COVID transfer or other potentially infectious diseases, from reach-through or from firearm discharge. The mobile PAS includes a brake mechanism that permits the attendant to move the PAS defensively to a more secure location, or to be used offensively against a perpetrator by moving the PAS against the perpetrator and pinning him / her to a wall or other structure until authorities arrive.

Implementations described and claimed herein provide a personal tactical system configured to be worn by an individual for protection against threats. In one implementation, the personal tactical system includes one or more internal components disposed in an interior formed by an outer layer and an inner layer. The internal components include a flexible body armor, a ballistic plate, a ballistic frame, and / or a ballistic plate cover. The ballistic frame further includes an electrical system coupled to the frame body, the electrical system including one or more ports in communication with at least one of electrical or communication lines.

The invention relates to the technical field of grid armored platforms, and particularly discloses a composite additional grid armored system platform which comprises a composite additional grid armored system main platform. The composite additional grating armored system main platform comprises a side composite additional grating armored system platform, a top composite additional grating armored system platform, a top composite grating armored ceiling and a rear composite additional grating armored system platform; a modular and multifunctional basic design thought is adopted, advanced technical means such as material science analysis and research, engineering structure mechanics design, key part transplantation and special development are adopted, a certain type of walking combat vehicle is used as a platform test device for operation, a practical task is used as a research target, and a set of walking combat vehicles suitable for plains, cities, towns and the like is developed. The device is a complete set of external equipment used for tasks such as enemy anti-armored equipment, suicide type unmanned aerial vehicles and self-hiding.

The invention provides alumina-based gradient ceramic as well as a preparation method and application thereof, and belongs to the technical field of ceramic materials. A gradient structure design is adopted, based on a non-linear component distribution mode, the ratio of aluminum oxide to zirconium oxide is optimized, a sintering aid is added, aluminum oxide-based composite powder is synthesized through high-energy ball milling, a mold is filled with the aluminum oxide-based composite powder in a layered mode according to the gradient design after the aluminum oxide-based composite powder is dried, and the compact aluminum oxide-based gradient ceramic is obtained through a hot pressing sintering process. The alumina-based gradient ceramic prepared by the invention has high Vickers hardness (greater than or equal to 21 GPa), high strength (greater than 850 MPa) and high fracture toughness (greater than 7 MPa.m < 1 / 2 >), and has excellent mechanical properties, and the fracture toughness and the strength are greatly improved on the premise of ensuring that the Vickers hardness is not reduced.

The invention relates to the technical field of bulletproof plugboards, in particular to a composite bulletproof plugboard and a preparation method thereof. The composite bulletproof flashboard comprises a crack arrest layer, a composite ceramic layer, a buffer layer, a tough layer and an outer packing material which are arranged in a stacked mode. All the layers are bonded by adopting polyethylene adhesive films. The overall density of the composite bulletproof flashboard does not exceed 38.9 kg / m < 2 >, the composite bulletproof flashboard is light in weight, after a shooting experiment is conducted, the sunken degree of the back of the composite bulletproof flashboard does not exceed 18.4 mm, most importantly, the composite bulletproof flashboard still has good protection performance after multiple times of dense shooting and shooting again, and soldiers can be effectively protected and casualties can be effectively reduced in actual combats.

Aerogels comprising a hydrophobic polyimide moiety, including hydrophobic polyimide aerogels, as well as methods of manufacture and applications thereof, are generally described.

The invention discloses a hybrid gradient fiber composite bulletproof laminated plate and a preparation method thereof, and belongs to the technical field of composite target plates. The preparation method comprises the following steps: coating the surface of each aramid fiber cloth laminated layer with waterborne polyurethane, and sequentially performing drying and tailoring forming to obtain a plurality of tailored and formed aramid fiber cloth composite layers; respectively cutting and forming the plurality of ultra-high molecular weight polyethylene fiber non-woven fabric laminated layers; and sequentially carrying out staggered stacking, wrapping, mold embedding and hot press molding on the waterborne polyurethane layers in the multiple tailored and molded ultra-high molecular weight polyethylene fiber non-woven fabric laminated layers and the multiple tailored and molded aramid fiber cloth composite layers, so as to obtain the hybrid gradient fiber composite bulletproof laminated plate. The interface bonding between the aramid fiber cloth and the ultra-high molecular weight polyethylene non-woven cloth in the hybrid gradient fiber composite bulletproof laminated plate is firm, and the hybrid gradient fiber composite bulletproof laminated plate has good energy absorption and blunt impact resistance effects and good bulletproof performance.

The invention provides a transparent bulletproof ceramic composite structure with an electric heating function and a preparation method of the transparent bulletproof ceramic composite structure. The composite structure comprises an anti-splashing layer (1), a first middle layer film (2), a multi-layer stacked structure (3) of glass sheets and films, a first transition layer (4), an electric heating film layer (5), a second transition layer (6), a ceramic layer (7), a first antireflection film layer (8), a second antireflection film layer (9), a third antireflection film layer (10), a second middle layer film (11), an inorganic glass layer (12), a third transition layer (13) and an anti-static layer (14) which are arranged in sequence. The composite structure provided by the invention has excellent impact resistance and bulletproof grade, can effectively resist the damage of high-speed elastic sheets or impact objects, and meets the requirements of high-safety application scenes such as weapon armors, armed airplanes and high-speed trains; and the anti-static film has clear optical observation capability, high transmissivity and anti-static property.

The present disclosure describes articles that may be used in protective gear, including but not limited to body armor, helmets, shields, or barriers. These articles may include a polymeric material coated with nanoparticles, in a single layer or in multiple layers, which are treated to form a composite. The articles may further include a ceramic layer and / or a back-face layer. Such articles may be useful for protecting an object or wearer against projectiles.

The invention relates to the technical field of protection equipment, and discloses a spliced bulletproof plugboard and a preparation method thereof.The spliced bulletproof plugboard comprises a first aramid sheet layer, a ceramic plate layer, a second aramid sheet layer and a polyethylene plate layer which are sequentially arranged in the direction from a bullet facing face to a bullet backing face; the ceramic plate layer comprises a ceramic plate and a long fiber layer circumferentially wrapping the side face of the ceramic plate, and the ceramic plate is formed by bonding and splicing a plurality of ceramic blocks. According to the invention, the plurality of ceramic blocks are bonded and spliced into the ceramic plate, and meanwhile, the circumferential side edge of the ceramic plate is wrapped by the long fiber layer to form circumferential constraint, so that the constraint rigidity between the spliced ceramic blocks can be effectively improved, and further, the ceramic close to a striking point is effectively prevented from shifting or being separated from the adjacent layer; the multiple resistance and the side edge protection performance of the bulletproof inserting plate are improved, and deformation and sinking at the moment of bouncing are reduced.

A personal protective vest assembly is described herein. The personal protective vest assembly includes a personal protective vest and a body armor panel positioned within the personal protective vest. The body armor panel includes a ballistic material panel assembly that includes a plurality of layered material segments defined between a strike face and a wear face. Each of the layered material segments includes a different ballistic material.

An Active Shooter Protection System (ASPS), comprising a variety of gravity-operated mechanisms for deploying one or more ballistic sheets, panels, or blankets of woven ultra-high-strength polymeric fiber (e.g., Kevlar™) directly in front of a door, such as in a school room. The deployment of a ballistic blanket is initiated by pulling down on a pull box, which activates a release that lowers down one or more segments of the ballistic blanket that is stored above a top of a door plate. The ASPS system includes means for securely locking the door shut (in addition to a dead bolt lock). The ballistic panels can include optional ceramic inserts for greater protection from high-power AR-15 rifles.

The invention provides a bulletproof structure and a preparation process thereof. The bulletproof structure comprises a ceramic layer plate, a titanium alloy layer plate, an aramid fiber layer plate, an ultra-high molecular weight polyethylene layer plate and a honeycomb heterogeneous anti-impact layer which are sequentially stacked, the ceramic layer plate and the titanium alloy layer plate, the titanium alloy layer plate and the aramid fiber layer plate, and the aramid fiber layer plate and the ultra-high molecular weight polyethylene layer plate are connected through a large-surface-density polyurethane resin adhesive film; wherein the ceramic laminate is made of nano modified B4C ceramic or nano modified TiB2 ceramic. The impact resistance of the base body can be improved, incoming projectiles are partially eroded and decomposed in the residence stage of the ceramic plate, then a large number of cracks are formed on the surfaces, conical fracture failure is achieved, bullet energy is decomposed greatly, the projectiles are eroded to deform and break, high temperature of combustion of the projectiles is blocked, and the impact resistance of the ceramic plate is improved especially for large-momentum and high-invasion-force projectiles. The invention particularly relates to a 12.7 mm armor-piercing combustion bomb and a kinetic energy warhead below.

The invention relates to the field of high-performance ceramics and bulletproof, in particular to a high-toughness layered boron carbide bulletproof ceramic and a preparation method thereof. The preparation method of the layered boron carbide bulletproof ceramic comprises the following steps: step 1, adding boron carbide powder and a sintering aid into a mixed solvent, then adding a dispersing agent, a binder and a plasticizer, and carrying out mixing and ball milling to obtain ceramic slurry; step 2, preparing the ceramic slurry into a boron carbide ceramic biscuit sheet by adopting a tape casting process; and laminating the boron carbide ceramic biscuit sheets, pressing, and carrying out hot pressed sintering to obtain the layered boron carbide bulletproof ceramic. Through the layered structure design, the controllable preparation of the layered boron carbide bulletproof ceramic is realized, so that the layered boron carbide bulletproof ceramic shows the characteristics of high strength and high toughness under the action force vertical to the layered direction, and the actual application effect of the layered boron carbide bulletproof ceramic is improved. Meanwhile, the layered structure provided by the invention has designability and operability, and the preparation process is simple.

The invention belongs to the technical field of armor protection, and particularly relates to an anti-penetration bionic spiral laminated backboard packaging ceramic composite structure. According to the composite structure, the metal frame strongly restrains ceramic, so that the erosion efficiency of a ceramic material to a projectile is improved, meanwhile, the damage range under single impact is reduced through packaging, and therefore the multiple-impact-resistant capacity of the protective structure is improved. And the spiral laminated backboard on the lower surface of the ceramic is mainly used for providing back support for the ceramic material, so that the crushing of the ceramic material is delayed, and the penetration resistance of the ceramic is improved. The high-molecular polymer material back plate of the composite protection structure absorbs energy of shots and broken ceramic fragments through large deformation by means of the high tensile strength of the high-molecular polymer material back plate, and therefore the protection structure is prevented from being subjected to aftereffect damage after penetration of the shots. In addition, the overall thickness and the surface density of the composite protection structure are low.

The present invention provides an aramid fiber reinforced polyurea / epoxy matrix hybrid laminate and a preparation method and application thereof, and relates to the technical field of armor materials. The aramid fiber reinforced polyurea / epoxy matrix hybrid laminate provided by the present invention comprises a stacked aramid / polyurea mixed fiber board and an aramid / epoxy resin mixed fiber board; the aramid / polyurea mixed fiber board and the aramid / epoxy resin mixed fiber board are bonded by polyurea. Compared with the traditional aramid / epoxy resin mixed fiber board, the aramid fiber reinforced polyurea / epoxy matrix hybrid laminate provided by the present invention has both good stiffness and deformation ability, and can play a good protective effect.

The invention provides a composite protection device and a preparation method and application thereof, and relates to the technical field of bulletproof. The composite protection device comprises a closely-laid pattern frame and UHPC-CA units filled in the closely-laid pattern frame. The closely laid pattern frame is laterally spliced with the UHPC-CA unit; the elastic material is silicone rubber or nitrile rubber; the closely laid pattern frame comprises a metal hard framework, and the metal hard framework and the UHPC-CA units are separated through an elastic material. The composite protection device can effectively limit expansion of radial cracks, and through mutual constraint of adjacent units, the overall anti-penetration capacity is improved.

The utility model relates to the technical field of police anti-explosion shields, and discloses a portable police anti-explosion shield which comprises an anti-explosion shield body, an upper shield body is arranged on the upper portion of a lower shield body in a foldable mode through a connecting hinge base, the upper portion of the upper shield body and the upper portion of the lower shield body are each provided with a first magnetic block, and a locking inserting column moves on the inner side of a shifting block sliding groove along with a switching shifting block. According to the anti-explosion shield, the upper shield body and the lower shield body are locked and limited by the locking inserting columns in an embedded and inserted mode, a foldable structure is adopted, the anti-explosion shield can be folded and stored through overturning when passing through a narrow area in actual use, moving and carrying of the anti-explosion shield are facilitated, and the shield bodies on the two sides are of inserting column type locking structures, so that the anti-explosion shield is convenient to move and carry. And after the shield bodies are unfolded, the locking insertion columns can be inserted into the connecting positions of the shield bodies on the two sides in an embedded mode by shifting the switching shifting blocks, the unfolded upper shield body and the unfolded lower shield body are locked and limited through insertion limiting, switching is convenient and rapid, and the use convenience of the anti-explosion shield is greatly improved.

A personal protective vest assembly is described herein. The personal protective vest assembly includes a personal protective vest and a body armor panel positioned within the personal protective vest. The body armor panel includes a ballistic material panel assembly that includes a plurality of layered material segments defined between a strike face and a wear face. Each of the layered material segments includes a different ballistic material.

The invention belongs to the technical field of light high-strength armor plates, and relates to a light high-performance layered composite armor plate and a preparation method thereof. According to the armor plate, the characteristics of good elasticity resistance and excellent corrosion resistance of the 2519A alloy and the advantages of low density, high strength and good heat resistance of the Mg-Gd alloy are combined. By utilizing the beneficial effect of friction stir additive manufacturing on microstructure and interlayer bonding, the prepared composite board has the characteristics of light weight and high performance, and has excellent comprehensive performance. The aging temperature range of the Mg-Gd alloy and the aging temperature range of the 2519A alloy adopted by the plate are high in coincidence, and after the composite plate is manufactured through friction stir additive manufacturing, the comprehensive mechanical property of the plate can be further improved through aging heat treatment.

The invention relates to the technical field of protective materials and preparation thereof, and provides a multi-penetration-resistant ceramic armor array structure and a preparation method thereof.The multi-penetration-resistant ceramic armor array structure comprises a plurality of carbon-ceramic units arranged in an array mode, the space between the multiple carbon-ceramic units is filled with B4C powder in a cold pressing mode, and molten aluminum permeates into the space between the multiple carbon-ceramic units through pressure; the carbon-ceramic unit is formed by stacking pure ceramic layers and sizing carbon fiber cloth with different thicknesses in a gradient mode. The preparation method comprises the steps that S1, the carbon-ceramic unit is designed and prepared; s2, designing and preparing a preform blank; and S3, designing and preparing a ceramic protection array structure. The preparation method has the beneficial effects that the carbon fiber toughened ceramic is used as a main body material, a high-toughened carbon ceramic structure is designed by adopting a gradient array, the toughness-matched ceramic composite material module suitable for projectile impact is prepared by adopting a pressure infiltration integrated forming technology, and the multi-elastic resistance of the ceramic composite material module is improved on the premise that the composite protection weight is not increased.

A ballistic shield has a front “bulletproof” ballistic fabric layer with an elastic layer situated behind, such that when a projectile strikes the ballistic fabric layer, the layers yield rearwardly, with the elastic layer then rebounding the projectile. The rebounded projectile thereby serves as a hazard (or at least a distraction) to the shooter. The elastic layer may be provided as one or more inflatable sublayers, allowing the ballistic shield to be rapidly inflated for use, and otherwise folded for storage and transport.

The present invention belongs to the technical field of composite material preparation, and particularly relates to a high-performance conch shell bionic structure aluminum-based composite armor and a forming method thereof. The forming process is as follows: first, mix powders, then stack and compact the powders to form a fixed combination, solutionize the laminated material of the combination and immediately perform hot rolling, and then perform aging treatment. Deep cryogenic treatment can be carried out after aging; at least one layer in the intermediate layer of the laminated material before rolling is composed of powders, and the high-strength layer is located between metal plates. The high-strength layer is composed of ceramic particles and metal particles evenly mixed. The present invention first attempts to introduce powders between two metal plates. By virtue of the high activity of the powders, solutionizing is carried out first and then rolling, which can improve the diffusion of the powders and achieve better bonding. The strong and tough alternating stacking of the conch shell structure causes cracks to deflect when passing between layers, and will bypass the particles when passing through the particles in the high-strength layer to achieve deflection. This form of multiple reciprocating deflection of cracks can improve the energy absorption rate, thereby improving the impact resistance, and also greatly improving the strength and toughness of the aluminum-based composite armor.

The invention relates to the technical field of bulletproof inserting plates, in particular to a bulletproof inserting plate and a manufacturing method thereof.The bulletproof inserting plate comprises a ceramic material layer, an alloy layer, an anti-sinking layer, an energy absorption layer and a UD plate layer which are sequentially connected in a laminated mode; the energy absorption layer comprises a titanium alloy material layer with a honeycomb structure and a Kevlar material layer with a honeycomb structure, the titanium alloy material layer is formed through 3D printing, the Kevlar material layer is directly subjected to 3D printing on the titanium alloy material layer, and the titanium alloy material layer and the Kevlar material layer are compounded into an integrated structure in situ. The invention further provides a manufacturing method of the bulletproof flashboard, and the bulletproof flashboard produced through the method has a stronger energy absorption layer structure and can have a good protection effect on bullets with the initial speed ranging from 880 m / s to 950 m / s.

The present invention discloses a heterogeneous metal laminated composite armor and a preparation method thereof, comprising the following steps: A. Prepare different heterogeneous metal elements respectively and stack them along the thickness direction; B. Vacuum package the periphery of the interface of the stacked heterogeneous metal elements; C. Achieve metallurgical bonding of the heterogeneous metal interfaces through stacked forging and heat preservation diffusion treatment; D. Obtain a heterogeneous metal laminated composite armor with specific specifications through forging and precision rolling. The present invention uses a high-strength metal as the face plate and a high-toughness metal as the back plate, and at least one of the two metals is a high specific strength material. Through stacked forging and heat preservation diffusion treatment, strong metallurgical bonding is achieved at the heterogeneous metal interfaces, and combined with subsequent forging and precision rolling processes, a lightweight metal composite armor plate with excellent anti-ballistic performance is prepared, improving the anti-multi-projectile strike ability and comprehensive protection performance of the armor, and solving the problem of weak interfacial bonding strength of heterogeneous materials.

Building components and building systems and methods of using are disclosed. An example building component may include a ballistic resistant panel system. The ballistic resistant panel system may include a panel and a mount connected to the panel. The mount may be configured to secure the panel with respect to a wall system or structure and may facilitate selective movement of the panel relative to the wall system. The panel may include a ballistic resistant layer and an outer layer secured to a least one side of the ballistic resistant layer. The ballistic resistant layer may include one or more panels of ballistic resistant material. The outer layer may be decorative or functional layer.

Disclosed are a method, system, and apparatus of a rapidly expandable anti-drone mesh system and method. In one aspect, a system includes a protected asset, an armored mesh on the protected asset, a sensor system to detect a hostile drone to imminently collide with the protected asset in an impact zone, and a responsive mechanism of the protected asset to cause a high-pressure gas to rapidly expand the armored mesh in the impact zone of the protected asset when the sensor system detects the hostile drone to imminently collide with the protected asset. The armored mesh preserves the protected asset by causing the hostile drone to impact the armored mesh instead of directly the protected asset. The protected asset may be a building, a vehicle, a wearer of a tactical gear, a civilian, a soldier, a boat, a tank, a weaponry, an airplane and / or an infrastructure.

The invention provides an alloy and silicon carbide ceramic integrated protective armor structure and a preparation method thereof.The armor structure comprises a ceramic plate framework, long-plate-shaped hole channels distributed regularly are formed in the ceramic plate framework, and the long-plate-shaped hole channels are filled with metal alloy materials formed through pouring; the ceramic plate framework is provided with a metal alloy wrapping layer formed through pouring. During preparation, the ceramic plate framework internally provided with regularly distributed long-plate-shaped hole channels is prepared firstly, then alloy liquid is poured into a mold, the molten alloy liquid is injected into the mold to completely immerse the ceramic plate and fill the long-plate-shaped hole channels in the ceramic plate, and a uniform wrapping layer is formed on the surface of the ceramic plate. According to the structure, alloy and silicon carbide ceramic are effectively combined, reasonable structural design is adopted, high-speed penetrating objects are effectively blocked through the synergistic effect of the high-strength titanium alloy frame and the ceramic plate, and the multiple functions of bulletproof, impact resistance, high temperature resistance, corrosion resistance and the like can be achieved.

The invention belongs to the technical field of armor protection, and particularly relates to a composite bulletproof armor bullet hole repairing device and an application method thereof. The bullet hole repairing device comprises hard spherical particles, an adhesive, an isolating layer, an outer wrapping layer and a restraining cover. During storage, the isolating layer isolates the hard spherical particles from the adhesive; when the bullet hole repairing device is used, the bullet hole can be repaired by pulling out the isolating layer. The method is used for rapidly repairing the ceramic armor through the repairing device after the ceramic armor gets bullets, so that the bulletproof capability of a certain degree is recovered in a short time.

The invention provides an ultra-wideband electromagnetic shielding and bulletproof composite structure material and a preparation method thereof, and belongs to the field of preparation of electromagnetic wave-absorbing materials. The invention aims to solve the problems that the current electromagnetic shielding material is narrow in absorption wave band, the composite structure material is high in preparation cost and complex in process, and does not have protection performance. The ultra-wideband electromagnetic shielding and bulletproof composite structural material is mainly composed of four structural modules, namely (1) a wave-transparent skin; (2) preparing an aramid fiber honeycomb sandwich; (3) a reflecting plate; and (4) a bulletproof back plate. Wherein the wave-transparent skin is arranged on the outermost surface and receives incident electromagnetic waves, the aramid honeycomb sandwich, the reflecting plate and the bulletproof back plate are sequentially overlaid downwards, and all structural modules are bonded through modified resin adhesives. The ultra-wideband electromagnetic shielding and bulletproof composite structure material has a very excellent electromagnetic shielding effect, electromagnetic stealth of a target facility is achieved, meanwhile, certain protection performance is achieved, space occupation is reduced due to the multi-functionalization characteristic of the overall composite structure, and therefore the possibility that a target is detected is further reduced from the appearance; and the preparation raw materials of each structure module are rich, the cost is low, the operation process is simple, and industrial popularization and application of the ultra-wideband electromagnetic shielding and bulletproof composite structure material are facilitated.