Technical objects protection device from destructive elements mechanical impact
FIELD: weapon and ammunition.
SUBSTANCE: protection device consists of the flexible barrier, fixed around the perimeter of the object skin section from its inner side in the vital units location zone. The area of the flexible barrier set in the non-stretched state is chosen from the relation SFB≥1.15 SSS, where SFB - flexible barrier area, SSS - protected skin section area.
EFFECT: increase of the protected object combat survivability, while maintaining its specified operational and physical characteristics.
FIELD: armaments and ammunition.
SUBSTANCE: protective armour barrier contains ceramic element and substrate enclosed in the lining. The ceramic element has residual stresses. The substrate material is selected on the condition not to exceed tension strength of the material under applied force of substrate pressing to the ceramic material considering curvature of the ceramic element or substrate. The substrate can be made single layer out of steel. The substrate can be made multi-layer, at that the back side is made out of steel, and other layers are made out of the material which density is below the same of the back side material. At kinetic energy of bullet ≤ 3.5 kJ number of the substrate layers is two, at the kinetic energy > 3.5 kJ the substrate contains over 2 layers. The lining is made out of material with strength σ ≥ 50 MPa, thickness 0.2-2.5 mm. The ceramic element is enclosed by lining. The ceramic layer and substrate are glued to each other under force applied to the substrate from side of its adjoining to the ceramic element. The substrate is installed on soft damping substrate.
EFFECT: increased protection properties of the protective armour barrier due to the substrate pressing to the armour element under force.
8 cl, 3 dwg
SUBSTANCE: invention relates to individual protection means, protection of instruments, vehicles and stationary devices. Said barrier comprises substrate, ceramic ply and outer lining. Ceramic ply depth makes 0.4-0.8 of total depth of sandwiched armour barrier. Substrate depth makes 0.4-1.2 of ceramic ply depth. Substrate consists of rear ply and, at least, one extra ply. Rear ply is made of steel with stress strength σ"в" = 0.4×109-2.5×109 Pa, while outer lining is composed by material with strength σ ≥ 50 MPa and 0.2-2.5 mm depth. At bullet kinetic energy of ≤3.5 kJ the number of substrate plies equals two while at that of >3.5 kJ said substrate comprises more than 2 plies. Density of the material whereof made are extra plies of substrate is smaller than that of substrate rear ply material.
EFFECT: higher efficiency of armour protection.
2 cl, 2 dwg
FIELD: weapons and ammunition.
SUBSTANCE: method of armour insert 1 manufacturing involves winding of ballistic spiral plait layers 7 out of hollow glass fibre impregnated with elastic synthetic binding agent in both directions within work area 4 on mandrel 3 with two symmetrical longitudinal grooves 5 extended beyond the mandrel work area 4 and filled with easy destructible material 6. Compensating fabric layers 8 are laid. Bars 9 out of easy destructible material are mounted above grooves 5. Bars are attached to the mandrel outside of work area 4. Ceramic armour screen shell rings 11 are laid with their flat side edges close to bars 9, and splinter-proof layers 13 are bound on the shell rings to press shell rings 11 to bars 9 and compensating layers 8. The blank undergoes thermal processing and cutting along bars 9, weld burrs are cut off in flush, and edges are modelled by U-profile out of material. Armour inserts 1 include ballistic layers 7 of semispiral plaits of both directions out of hollow glass fibre impregnated with elastic synthetic binding agent, compensating fabric layers 8 out of hollow glass fibre impregnated with similar binding agent, ceramic armour screen shell rings 11, splinter-proof layers 13 placed over the shell rings and similar to ballistic layers 7. Side edges are formed with high precision for gapless contact of flat edges during armour insert 1 alignment by the external surface.
EFFECT: enhanced processability and quality of armour inserts.
4 cl, 9 dwg
FIELD: weapons and ammunition.
SUBSTANCE: invention relates to the field of protection means of equipment from armour-piercing bullets. The volume-combined armour comprises a highly hard layer of densely packed small-sized ceramic cylinders located at an angle relative to the plane of the armour, connection by the binder to the monolith, and high-tensile energy intensive rear layer. The ends of the cylinders adjacent to the rear layer are made flat and parallel to the plane of the armour.
EFFECT: increase in reliability and effectiveness of armour protection while reducing weight of the protective structure.
SUBSTANCE: invention relates to bullet resistant articles Bullet resistant moulded article contains pressed pack of sheets, containing reinforcing elongated bodies, in which at least part of elongated bodies are polyethylene elongated bodies, which have weight average molecular weight at least 100000 g/mol and ratio Mw/Mn not larger than 6 Polyethylene elongated bodies preferably have weight-average molecular weight at least 300000 g/mol, more exactly at least 400000 g/mol and still more exactly at least 500000 g/mol If polyethylene elongated bodies are tapes, their parameter of orientation 200/110 in one plane equals at least 3, and, if polyethylene elongated bodies are fibres, their parameter of orientation 020 in one plane equals not more than 55°.
EFFECT: increase of protective characteristics, reduction of weight and improvement of article stability are achieved.
13 cl, 2 tbl
SUBSTANCE: invention relates to shock-proof composite materials. Composite material includes inorganic ceramic matrix, in which there is first external surface and second external surface, on the whole parallel to first external surface. Composite material also contains, at least, three layers of glass-fibre fabric with open structure, located in matrix between first external surface and second external surface. Inorganic ceramic matrix includes phosphate ceramic matrix. In other version shock-proof composite material contains first and second inorganic ceramic matrix. First inorganic ceramic matrix includes pieces of stone. Second inorganic ceramic matrix is located near first one and includes, at least, one glass fibre fabric with open structure.
EFFECT: obtaining shock-proof, light and economical composite materials.
34 cl, 15 dwg, 5 ex
FIELD: weapons and ammunition.
SUBSTANCE: invention relates to combat equipment, particularly, to armoured protective structures. Proposed protection comprises substrate and outer cover layer. Said substrate can be mono- or duplex structure. Cover layer is made of material wherein sound speed is higher than that in substrate material nearby protected object and made of material with mechanical strength higher than that of cover layer.
EFFECT: higher reliability and decreased weight.
4 cl, 2 dwg
FIELD: weapons and ammunition.
SUBSTANCE: composite armor comprises crushing-deflecting layer 1 and retaining layer 7. Said crushing-deflecting layer 1 consists of cylindrical discrete elements 2, 3 arranged perpendicular to armor plane. Cylindrical parts 3 have one top or two top and bottom convex faces 4 abutting on their cylindrical parts. Cavities 5 filled with polymer-based binder composition 6 are formed between every three adjacent discrete elements 2. Retaining layer 7 is made from aluminium alloy or steel. Crushing-deflecting layer 1 and retaining layer 7 are arranged with the gap 8 exceeding 1 mm or material with elasticity modulus at compression smaller than 40 GPa is fitted there between. Binder composition 6 is furnished with extra corundum or ceramic crumbs 9 that made a homogeneous mass.
EFFECT: higher hardness of armor.
FIELD: textiles, paper.
SUBSTANCE: product comprises a stack (6) of the laminates (7) comprising at least one layer of fibres and one layer of polymeric material. The fibres are made according to the standard ASTM D-885 with the strength 2000 MPa. The stack (6) is surrounded by the first separate protective shell, and also is completely surrounded by the second protective shell (1). The second protective shell (1) is connected or woven in one piece or made composite.
EFFECT: increased resistance of the product to perforation.
15 cl, 4 dwg
SUBSTANCE: rear layer plate is made from steel containing the following, wt %: 0.12-0.18 C, 0.10-0.19 Si, 1.2-1.6 Mn, 1.0-1.4 Ni, 0.25-0.45 Mo, 0.02-0.06 Al, 0.02-0.16 Ti, 0.001-0.032 Ca, 0.005- 0.015 P, not more than 0.01 S, and Fe is the rest; with that, total content of Si+P does not exceed 0.21 wt %, hot rolling of plates is performed both in transverse and longitudinal directions with total reduction of cross-sectional area in each of the directions of not less than 50%, rolling is finished at the temperature of 930-1050°C and plates are cooled with water from that temperature, and annealing is performed at the temperature of 250-460°C.
EFFECT: improving armour characteristics of protective armour design.
FIELD: means of individual protection against bullets, fragments and impacts by piercing and cutting articles.
SUBSTANCE: the armored block includes an armored component and a layer of thermoplastic polymer installed on it, for example, of polyethylene, placed in a cloth envelope. An inner cloth pack strengthened around the edges and made in the form of a set of narrow strips of high-modulus cloth is installed between the layer of polymer and the armored component. The envelope in the lower and side parts, layers of the pack cloth and the strengthening are interconnected. The envelope of cloth and cloth pack with the strengthening is made in the form of a double pocket having a nap fastener in the upper part. The zones of strengthening of the cloth pack envelop around the edges the end face edges of the armored component.
EFFECT: applicable in manufacture of protective cloth.
3 cl, 2 dwg, 1 ex
FIELD: means of individual protection of a person against assault with the use of a revolver, submachine gun, knife or pricker.
SUBSTANCE: the protective vest has the front and rear part and means for their coupling, the front part has at least one upper armored protective component for protection of the region of the thorax of the vest user, and at least one lower armored component for protection of the abdominal cavity. The rear part has an elongated central armored component passing along the user's vertebral column, and at least two laminar side armored protective components attached on each side of the central component, the armored protective component are arranged with partial overlapping and for slipping on one another.
EFFECT: provided protection against injury by a light weapon, at a long wearing the user can not only bend forward, but turn and bend aside; enhanced reliability and convenience in use.
12 cl, 12 dwg
FIELD: devices for armor protection, applicable for protection of rooms, storehouses safes, collecting vehicles against the action of small arms bullets.
SUBSTANCE: the armor protection device has a face ceramic layer, backing of composite material adjoining it and enclosed in a shell. The ceramic layer and the backing are made closed. The shell repeats the shape of the ceramic layer. An additional layer of elastic material is introduced onto the backing surface opposite the surface adjoining the ceramic layer, between the shell and the ceramic layer.
EFFECT: enhanced resistance to the bullet action due to the reduced edge effects; enhanced reliability of armor protection due to the reduced mass and overall dimensions of the device.
1 dwg, 1 ex
FIELD: armor constructions primarily means of individual defense from cold steel, bullets and fragmentations; sheet armor is recommended for using as material for body armor.
SUBSTANCE: sheet armor has a great number of solid-state elements fulfilled in the form of spiral springs located in row and connected with each other. At least part of springs is made with variable diameter and/or with coils' step, namely conical. Conical springs may be located so that increase of coils' diameter of each follow-on spring coincides with decrease of coils' diameter of the previous spring. Springs are placed in a mould forming a composite construction. Springs and mould are made in proportionate modules of elasticity in the same directions of deformation. Mould may be made of aluminum or aluminum alloy, fully or partly filling the internal volume of the composite construction. Additionally armor has layers of aramid fibers connected with flexible ties for example quilted with a thread.
EFFECT: increases defensive capabilities including impact resistance.
46 cl, 20 dwg
FIELD: personal protection-gear.
SUBSTANCE: collision protecting device comprises metallic plate and protecting plate made of a layered material. The thickness of the protecting plate is 0.2db < b2 < 0.3db, and it is mounted on the face side of the metallic plate that undergoes shock. The metallic plate is made of a material whose rigidity is no less than 300 HB and thickness b2 > 0.8db, where db is the diameter of the bullet, b1 is the thickness of the metallic plate, and b2 is the thickness of the protecting plate. The protecting plate can be made of a material with low specific density and high compression strength, say glass textolite.
EFFECT: enhanced reliability.
FIELD: production of individual protection against injury by a knife, bullet and fragments; applicable for manufacture of protective clothing.
SUBSTANCE: the product has an outer surface with a great number of cloth layers resistant to a knife stab with a loose interweaving woven with a cloth density factor of at least 0.65, and an inner surface that has a great number of cloth layers unpiersable by propellant projectiles. The outer surface represents the product surface, which is the surface of striking a knife stab.
EFFECT: improved protective properties with the elasticity of the products remaining unchanged.
FIELD: means of individual protection, in particular, production of armor panels for armored vests, as well as for light protection of equipment, helicopters, pilot's seats and armored vehicles.
SUBSTANCE: the armor panel has two armor plates of layers of aramidic fabrics or mats impregnated by synthetic resin, connected to a honeycomb panel placed between them. The honeycomb panel is made of paper with a synthetic impregnation. The panel honeycombs are filled with aramidic fibers or composition based on elastomers. The outer surfaces of the armor plates are connected to layers of polyurethane of cold hardening.
EFFECT: reduced beyond the obstacle shift, enhanced distributing and damping properties not below the fourth class of protection at a height stiffness of the structure and low weight.
30 cl, 7 dwg, 2 ex
FIELD: means for protection of objects against the effect of fast-moving rigid bodies.
SUBSTANCE: the bullet-catching antiricochet facing is made laminated of materials possessing various pliability. The dimension in thickness of elastic-pliable layers decreases from the outer layer to the rear one.
EFFECT: enhanced durability and efficiency of the facing, provided protection against injury by secondary fragments.
5 cl, 2 dwg
FIELD: piercing-resistant material and products made of it (bulletproof armored vests, armor plates).
SUBSTANCE: the material has at least a double layer of cloth material. The first layer of the cloth consists of the first set of threads of a definite linear density, making up at least 65% of the cloth mass, and of the second layer of threads with a definite linear density, the second set of threads is arranged transversely with respect to the first set of threads, and the proportion of the quantity of threads/cm in the first set to the respective value for the second set >1. The second layer of the cloth consists of the first set of threads with a definite linear density, making up at least 65% of the cloth mass, the second set of threads is arranged transversely with respect to the first set of threads, and the proportion of the quantity of threads/cm in the second set to the respective value in the first set >1. The first and second sets of threads in the first layer are oriented in parallel with respect to the first and second sets of threads, respectively, in the second layer.
EFFECT: simplified manufacture, absence of crossed arrangement of layers, which causes a danger of formation of weak points.
14 cl, 1 dwg
FIELD: multilayer ballistic materials.
SUBSTANCE: the bulletproof product has a great number of layers of material having a surface density within 2 to 10 kg/sq.m, in which at least two layers of material are loose-fabric ones, the loose-fabric layers contain a material with a density coefficient within 0.3 to 0.6 and containing continuous yarn fibers with a linear density of at least 200 dtex, breaking strength of at least 10 g per dtex and a modulus of tension of at least 150 g per dtex, the adjacent layers of the loose-fabric material are interconnected for limiting the motion of the layers of the loose-fabric material relative to each others.
EFFECT: produced elastic product having an improved bulletproofness.
12 cl, 4 tbl, 8 ex