CN108426491B - Flame-retardant explosion-proof ammunition box - Google Patents
Flame-retardant explosion-proof ammunition box Download PDFInfo
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- CN108426491B CN108426491B CN201810461088.5A CN201810461088A CN108426491B CN 108426491 B CN108426491 B CN 108426491B CN 201810461088 A CN201810461088 A CN 201810461088A CN 108426491 B CN108426491 B CN 108426491B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
- F42B39/14—Explosion or fire protection arrangements on packages or ammunition
- F42B39/18—Heat shields; Thermal insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
- F42B39/24—Shock-absorbing arrangements in packages, e.g. for shock waves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
- F42B39/26—Packages or containers for a plurality of ammunition, e.g. cartridges
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Casings For Electric Apparatus (AREA)
- Building Environments (AREA)
Abstract
The invention relates to a flame-retardant explosion-proof ammunition box, which belongs to the field of flammable and explosive packaging and comprises a sealing cavity formed by enclosing a box body and a box cover buckled on the box body, wherein the box body and the box cover both comprise a rotational molding outer shell, a heat insulation filling layer, a heat insulation felt or plate layer and a metal foaming explosion-proof inner shell from outside to inside, a vibration reduction mould shell matched with the shape and the specification of ammunition is arranged in a containing cavity formed by enclosing the metal foaming explosion-proof inner shell of the box body, the rotational molding outer shell on the box body and the box cover form a step-shaped limit sealing structure buckled by a primary and secondary through a matched arrangement of a stopper and a mouth, the heat insulation felt or plate surrounds the outer part of the metal foaming explosion-proof inner shell, and the heat insulation felt or plate on the box cover is correspondingly higher than the metal foaming explosion-proof inner shell to form a double-layer staggered buckling sealing structure, and the heat insulation filling layer is a heat insulation material filled in a gap between the rotational molding outer shell and the heat insulation felt or the plate layer. The packing box has multiple protection effects of flame retardance, heat insulation, vibration resistance, impact resistance and explosion resistance.
Description
Technical Field
The invention belongs to the technical field of flammable and explosive material packaging, relates to an ammunition packaging box, and in particular relates to a flame-retardant and explosion-proof ammunition box which integrates flame-retardant, anti-ablation, heat-insulating, anti-explosion, anti-impact and vibration-reduction technologies.
Background
Ammunition is an extremely dangerous military material, and due to the modern war requirement and the complexity of a war ammunition guarantee mode, the ammunition package must have a strong enough resistance to meet the requirements of war safe storage, transportation and storage. At present, the army ammunition protection mainly comprises a packing box, wherein most of packing materials are made of wood and steel, a small amount of packing materials are made of glass fiber reinforced plastics and plastic, and the inside of the packing box is fixed by adopting a bracket and a vibration reduction material. The packing cases play a certain role in protecting ammunition safety, but the wooden packing cases are low in strength and poor in protection performance, are easy to be damaged by worms and rats, and are inflammable and combustion-supporting. The steel packing box has high strength, is easy to rust, is easy to generate sparks when being collided, has high heat conduction speed, has potential safety hazards in storage and transportation of dangerous goods, and has large weight and high cost. The glass fiber reinforced plastic material is brittle, has poor low temperature resistance, is easy to deform, has short service life and lower cost performance. Most plastic packaging boxes are formed by plastic injection molding, and part of packaging boxes made of resin are lack of effective heat preservation and impact resistance measures, so that temperature change and impact in the storage and transportation process can influence the physicochemical properties of ammunition, the rifling and shooting precision, and under extreme conditions, the shooting and transportation safety can be influenced. Most ammunition packages have single functions, and cannot practically protect ammunition. Especially, some novel ammunition and high-precision-point missiles can cause functional failure and even have potential safety hazards if stored and transported improperly. In addition, because of the wide variety of packaging modes and non-uniform execution standards, the equipment is difficult to mechanically operate, the containerized storage and transportation are inconvenient, and various wastes are generated. With the upgrading of modern wars which can fight and fight, various novel ammunition and high-precision point missiles are continuously emerging, and development of an explosion-proof, fire-resistant, vibration-resistant and impact-resistant ammunition box is urgently needed.
Disclosure of Invention
The invention designs a flame-retardant and explosion-proof ammunition box for enhancing the resistance of an ammunition packing box and reducing the weight, and the flame-retardant, heat-insulating, vibration-resistant, impact-resistant and explosion-proof multi-protection ammunition box is formed by adopting a light anti-impact rotational molding outer shell, a metal foaming explosion-proof inner shell, a multi-layer protection structure with a heat insulation layer arranged between the inner shell and the outer shell, and a multi-channel anastomotic fastening sealing structure.
The technical scheme of the invention is as follows: the utility model provides a fire-retardant explosion-proof ammunition box, includes the sealed chamber that box and lock are enclosed on the box, its characterized in that: the box body and the box cover all comprise a rotational molding outer shell, a heat insulation filling layer, a heat insulation felt or plate layer and a metal foaming explosion-proof inner shell from outside to inside, a vibration reduction mould shell matched with ammunition in shape and specification is arranged in a containing cavity formed by the metal foaming explosion-proof inner shell of the box body, the rotational molding outer shell on the box body and the box cover forms a step type limit sealing structure buckled with a primary and secondary through a matched opening, the heat insulation felt or plate surrounds the outside of the metal foaming explosion-proof inner shell, and the heat insulation felt or plate on the box cover is shorter than the metal foaming explosion-proof inner shell and is correspondingly higher than the metal foaming explosion-proof inner shell to form a double-layer dislocation buckling sealing structure, and the heat insulation filling layer is a heat insulation material filled in a gap between the rotational molding outer shell and the heat insulation felt or plate layer.
Because the rigidity and the explosion-proof performance of a single rotational molding outer shell are insufficient, the sealing heat insulation of a single metal foaming explosion-proof inner shell is difficult to ensure, the explosion-proof box adopts a multi-layer structural design, the rotational molding outer shell can resist flame, bear pressure and impact, the heat insulation filling layer and the heat insulation felt or the plate layer enhance the heat insulation and flame retardant effect on one hand, the metal foaming explosion-proof inner shell is isolated from the rotational molding outer shell on the other hand, the metal foaming explosion-proof inner shell has higher rigidity, vibration and explosion can be damped, and the vibration damping mould shell forms surrounding vibration damping protection for ammunition. The heat insulation, explosion prevention and fragment prevention capability of the ammunition box are improved through the comprehensive effect of the multilayer composite structure. The special characteristics of the use environment of the explosion-proof box are combined, heat transfer inside and outside the box is effectively prevented structurally, the outer shell is sealed and isolated from the inner shell in a staggered mode, the outer shell forms a stepped limit sealing structure of a primary-secondary buckling through a stop opening on the box body and the box cover, the buckling surface of a heat insulation felt or plate on the box body and the box cover is staggered with the buckling surface of the metal foaming explosion-proof inner shell, and 3 sets of sealing structure designs are formed from inside to outside, so that heat conduction through inside is effectively avoided. Insulation blanket or plate, to ensure the intermittent "heat bridge" isolation of the inner and outer shells. And the metal foaming plate is connected into a relatively independent inner layer box body by a hardware corner fitting, and is suspended on a natural vibration reduction frame formed by a rotational molding shell and a heat insulation felt or plate, so that the vibration reduction and explosion resistance of the explosion-proof box is further improved, the comprehensive heat insulation performance is good, the safety is ensured, and the heat insulation effect is good. The fire disaster of 650 degrees within at least 20 minutes is resisted, the storage safety of ammunition is ensured, the time rescue is strived for, and the disaster caused by secondary explosion is prevented.
Further, the rotational molding shells of the box body and the box cover comprise flame-retardant crosslinked polyethylene impact-resistant outer layers and foamed polyethylene heat-insulating inner layers, the impact-resistant outer layers and the heat-insulating inner layers are integrally molded by rotational molding through a secondary feeding process, and the heat-insulating inner layers at the buckling surfaces of the box body and the box cover are folded inwards, and the impact-resistant outer layers wrap the heat-insulating inner layers and are folded inwards to form a matched stopper. Compared with common polyethylene, the flame-retardant cross-linked polyethylene anti-impact outer layer has higher pressure resistance grade, smaller deformation and better flame retardance, and the shrinkage and deformation of the product after rotational molding processing are small, so that the pressure resistance requirement of an ammunition packing box can be met. The heat-insulating inner layer formed by the foamed polyethylene is used as a reinforced heat-insulating layer of the packing box, and the material can effectively improve the integral rigidity of the packing box, so that the packing box has the characteristics of lighter, stiffer and stronger. The polyethylene foamed heat insulation inner layer has low density, high multiplying power, uniform cell distribution, narrow distribution, high strength, excellent high temperature resistance and low heat conductivity. The rotational molding shells of the box cover and the box body adopt a double-layer structure, and are integrally formed through a secondary feeding process, so that the toughness, impact resistance and flame-retardant heat-insulating capacity of the shells can be enhanced. The structure of the buckling surface formed by folding the box body and the box cover can enhance the strength of the buckling surface, and the bent structure avoids straight-through heat conduction, ensures optimal heat insulation effect and has certain waterproof sealing and retention functions.
Further, the sealing opening formed on the anti-impact outer layer of the box cover comprises an arched sealing groove formed in a surrounding mode, and an arched sealing boss is formed on the seam allowance formed on the anti-impact outer layer of the box body in a matching mode; the sealing boss is jacked into the sealing groove and is pressed on the annular sealing strip arranged at the bottom of the arched sealing groove, and the sealing surfaces at the two sides of the sealing groove and the sealing boss are matched with each other in high and low staggered forming, so that the three-way buckling sealing structure is formed. The sealing structure can form a multi-face attached step type sealing structure, has a good sealing effect, and can prevent moisture, water and corrosion and effectively prevent heat from being conducted to the inside.
The heat insulation felt or plate on the box cover and the box body is stuck on the outer surface of the metal foaming explosion-proof inner shell and is integrally pressed into the inner cavity of the rotational molding outer shell along with the metal foaming explosion-proof inner shell; the top surface of the heat insulation felt or plate on the box cover is jointed with the heat insulation inner layer, the four side surfaces are jointed with the inner surface of the reverse folded part of the impact-resistant outer layer, the bottom surface of the heat insulation felt or plate on the box body is jointed with the heat insulation inner layer, and the four side surfaces are jointed with the inner surface of the reverse folded part of the impact-resistant outer layer. The assembly method is simple and quick, the metal foaming explosion-proof inner shell can be coated by the heat insulation felt or the plate to form heat insulation and flame retardation protection for the coated metal foaming explosion-proof inner shell, so that the inner shell and the outer shell are isolated, the metal foaming explosion-proof inner shell can be supported on a natural vibration reduction frame formed by the rotational molding outer shell and the heat insulation felt or the plate, and vibration reduction, impact resistance, flame retardation and heat insulation protection are formed for the metal foaming explosion-proof inner shell.
Further, the heat insulation materials on the box cover and the box body are filled between the heat insulation inner layer main body and the reverse folded part thereof and between the heat insulation inner layer and the heat insulation felt or plate, and the materials are loose polyurethane or phenolic resin foam or foaming polyethylene powder which is bonded on the rotational molding shell and is mixed with silicon dioxide aerogel powder. The heat insulating material can be filled before the heat insulating felt or plate and the metal foaming explosion-proof inner shell are pressed into the rotational molding outer shell, and can be bonded on the heat insulating inner layer in the rotational molding process.
Further, when the raw material of the heat-insulating inner layer of the rotational molding shell is put into and fused to adhere to the wall, the foaming polyethylene powder mixed with the silica aerogel powder is put into to form the heat-insulating filling layer adhered on the heat-insulating inner layer. In the rotational molding process of the shell, when the raw materials in the die are still in a molten state after the secondary injection of the foaming polyethylene for foaming, the injection of the mixture of the foaming polyethylene powder and the silicon dioxide aerogel foaming powder is carried out for three times, so that the mixture is adhered to the inner surface of the rotational molding shell, a heat insulation filling layer is formed to fill the gap between the rotational molding shell and a heat insulation felt or plate, and the heat insulation performance of the box is better.
Further, the insulation blanket or slab is a silica aerogel blanket or slab. The silica aerogel blanket or panel can block "thermal bridge" conduction between the inner and outer shells. The aerogel is a nano-structure porous inorganic material and has the excellent performances of low heat conductivity coefficient, low refractive index, low elastic modulus, low density, low acoustic impedance, high temperature resistance, flame retardance, antiknock and the like. The aerogel nanometer microporous heat insulation material adopts special nanometer SiO 2 ，SiO 2 Aerogels are currently the best performing solid materials for thermal insulation. SiO (SiO) 2 The thermal conductivity of aerogels consists of three parts: gaseous thermal conductivity, solid thermal conductivity, radiant thermal conductivity. The average free path of air molecules is about 70nm, and SiO 2 The pore canal size in the aerogel is far smaller than the critical size (the aerogel size is about 20 nm), the convection is eliminated inside the material, the gaseous heat conductivity is low, the lower density limits the local propagation of the ripple in the sparse skeleton, and the solid heat conductivity is only about 1/500 of that of the inorganic glassy material, so that the SiO 2 The special structure of the aerogel makes the aerogel an ideal super heat insulation material. Ballistic protection is the second important use of silica aerogel blankets or panels. In the case of aerogel-built dwellings and military vehicles tested by the U.S. aerospace agency, if an aerogel layer of about 6mm thick was added to a metal sheet, the metal sheet would not be damaged at all even if the explosive was directly fried. If the silicon dioxide aerogel felt pad is adopted, the metal foam explosion-proof inner shell can be directly cut and sewn and then stuck to the outer surface of the metal foam explosion-proof inner shell in a spot brushing mode, and then the metal foam explosion-proof inner shell is integrally pressed into the rotational molding outer shell for fixation. The silicon dioxide aerogel felt plate is adopted for brushing and gluing, and can be connected and coated on the outer surface of the metal foaming explosion-proof inner shell through a hardware corner piece, and then integrally pressed into the rotational molding outer shell for internal fixation.
Further, the metal foaming explosion-proof inner shell is made of foaming aluminum plate materials.
Further, the inner surface and the outer surface of the metal foaming explosion-proof inner shell are coated with silica aerogel paint. The surface of the explosion-proof layer is coated with an aerogel heat insulation layer for double-layer reinforcement. Brushing aerogel coating on the surface of the explosion-proof bubble aluminum layer to dry and increase the heat insulation explosion-proof effect.
In order to realize the functions of preventing impact, bulletproof sheet impact, bullet shooting and sympathetic explosion, the foamed aluminum with metal characteristics is adopted, and the foamed aluminum has high strength, high temperature resistance and good electromagnetic isolation effect. The foamed aluminum is a novel light multifunctional material with a large number of communicated or non-communicated holes uniformly distributed in an aluminum or aluminum alloy matrix, is a composite material of a metal aluminum framework and air holes, has the characteristics of metal and foam materials, and combines the characteristics of functional materials and structural materials. As a structural material, the material has the characteristics of light weight and high specific strength; as a functional material, it has various physical properties such as sound absorption, heat dissipation, sound insulation, flame retardance, nylon, vibration reduction, impact energy absorption, electromagnetic shielding and the like. The foaming aluminum has extremely low heat conductivity, and the heat conductivity is only 1/5 to 1/500 of that of pure aluminum, so that the foaming aluminum is an excellent heat insulation material. The energy absorption capacity of the foamed aluminum is high, the ideal energy absorption efficiency is generally more than 0.8, and the energy absorption capacity can be 490-3430 kJ/m < 3 >. The foamed aluminum has strong heat resistance, has higher heat resistance, does not melt even when heated to 1400 ℃, and does not release harmful gases at high temperature. The foamed aluminum has strong sound insulation performance and excellent sound absorption performance. The specific surface area of the foaming aluminum is large, and the high heat exchange property can be achieved by utilizing the large specific surface area of the metal foaming material. The rigidity of the foaming aluminum is strong, and the elastic modulus is about 1/50-1/100 of that of the aluminum alloy. The foamed aluminum also has gas sensitivity, catalytic property, good heat preservation property, electromagnetic shielding property and good shielding effect on high-frequency electromagnetic waves, and can reduce electromagnetic interference by more than 80%. The foaming aluminum has very good processability, can be cut, drilled, bent, formed and glued, can be soldered and pressed, and has high processing precision. According to the invention, the foamed aluminum plate is cut to a proper size, the explosion-proof inner shell of the packing box is manufactured by adopting a drilling and screw fixing mode, and the inner surface and the outer surface of the packing box are coated with the silica aerogel coating and dried, so that the vibration reduction and explosion prevention performances of the packing box are improved.
Furthermore, the bottom and the top of the rotational molding shell of the box body and the box cover are distributed with crisscross or square or round bump lattices which are arranged in a matrix, and the top lattice of the box body or the box cover and the bottom lattice of the upper box body are mutually inserted and sewn and clamped to form an embedded assembly type anti-misplacement stacking structure; the top of the rotational molding shell of the box cover is provided with an integrated handle, the side surfaces of the rotational molding shells of the box body and the box cover are provided with inner concave rib grooves, and the inner concave rib grooves are internally provided with metal embedded inserts which are integrally formed by rotational molding.
The rib grids of the ammunition boxes with various specifications are designed by adopting a unified modulus standard, and the rib grids at the top of the box body or the box cover and the rib grids at the bottom of the box body are arranged in an inserting way, so that when the ammunition boxes with the same specification and different specifications are stacked, the rib grids at the bottom of the upper box body and the rib grids at the top of the lower box cover are mutually inserted and clamped, are spliced and stacked like building blocks, are fully limited in the front, the back, the left and the right, are prevented from being misplaced, are prevented from being unstably stacked, are not easy to stack, have universality and interchangeability, are convenient for containerized storage and transportation, are high in construction efficiency and are low in cost. The box body structural design reduces the use of metal accessories as far as possible under the premise of ensuring sealing, for example, the anti-explosion box handle is formed by rotational molding, the number of fasteners is greatly reduced compared with that of a common packing box, the use amount of the metal parts is reduced as far as possible, and heat conduction points are reduced, so that heat conduction damage to the packing box during fire is avoided. The metal accessories are installed in the inner concave rib grooves to conceal the installation points, surface passivation treatment is carried out, and heat-resistant glue is coated, so that heat accumulation is reduced, heat radiation heat is reflected as much as possible, the temperature difference between the inside and the outside of the explosion-proof box is guaranteed to the greatest extent, the safety is improved, and the operation and rescue are convenient when a fire disaster occurs.
The beneficial effects of the invention are as follows: 1. the ammunition box body and the box cover adopt a multilayer composite structure, the composite wall thickness is 45-60mm, and fireproof, flame-retardant and shock-absorbing foamed polyethylene trim matched with the shape and specification of ammunition is additionally arranged in the ammunition box body and the box cover, so that multiple protection is formed on the ammunition. The flame-retardant ablation-resistant rotational molding shell is integrally molded by flame-retardant composite polyethylene rotational molding, and the surface layer is compact, flame-retardant, high-toughness, and inner layer foam, heat-insulating and vibration-reducing, and has flame-retardant, impact-resistant and other protective effects on the box body. The heat insulation layer is divided into a main heat insulation layer and an auxiliary heat insulation layer, wherein the main heat insulation layer is made of silica aerogel felt or plate and is tightly attached to the inner shell; the auxiliary heat insulation layer is provided with a rotational molding foaming layer, a silicon dioxide aerogel filling layer and a silicon dioxide aerogel coating layer on the surface of the foaming aluminum explosion-proof inner shell, comprehensive heat insulation measures are adopted, the heat insulation, heat preservation and flame retardance characteristics of a silicon dioxide aerogel product (felt or plate, powder and coating) are fully utilized, and the multilayer protection and isolation external heat source enters the box body; the inner explosion-proof layer is made of foaming aluminum materials with excellent strength and rigidity, the metal characteristics and the foam material characteristics of the inner explosion-proof layer are fully utilized, the inner explosion-proof layer is made into an independent inner box body through threaded connection and fixation, the explosion-proof, pressure-bearing, supporting and penetration-resisting effects on the box body are achieved, and the comprehensive explosion-proof reliability and safety are improved by the aid of the silica aerogel heat-insulating coating. 2. The rotational molding shell is external penetration protection, the foamed aluminum is internal explosion-proof protection, and all layers of mechanisms are combined to prevent the external warhead from drilling into or penetrating through the ammunition box to detonate internal ammunition on one hand, and prevent the internal self-explosion from being in gap with the external ammunition on the other hand, so that bidirectional protection is realized.
Drawings
FIG. 1 is a schematic view of the exterior structure of an exemplary embodiment of a cartridge;
fig. 2 is a schematic view of the layers of the case body and the case cover of the ammunition case:
FIG. 3 is a schematic view of the structure of mating spigots on the case and cover;
in the drawing, 1 represents a box body, 2 represents a box cover, 3 represents a rotational molding outer shell, 31 represents an impact-resistant outer layer, 311 represents an arch-shaped sealing boss, 312 represents an arch-shaped sealing groove, 313 represents an annular sealing strip, 32 represents an inner heat-insulating layer, 4 represents a filling layer, 5 represents a heat-insulating felt or plate, 6 represents an explosion-proof inner shell, 7 represents a vibration reduction mould shell, 8 represents a rib lattice, 9 represents an inner concave rib groove, and 10 represents a handle.
Detailed Description
Referring to the attached drawings, a box cover 2 is buckled on a box body 1, a foaming polyethylene vibration reduction mould shell 7 attached to the box cover 2 and the inner wall of the box body 1 is arranged in a sealed cavity formed by surrounding, a mould cavity matched with the shape and the specification of ammunition is arranged on the vibration reduction mould shell 7, and the ammunition is placed in the mould cavity. The box body 1 and the box cover 2 comprise a rotational molding outer shell 3, a silicon dioxide aerogel heat insulation filling layer 4, a silicon dioxide aerogel heat insulation felt 5 layer and a foaming aluminum explosion-proof inner shell 6 from outside to inside.
The rotomoulded outer shell 3 of the case 1 and the cover 2 comprises an impact resistant outer layer 31 and an insulating inner layer 32 of foamed polyethylene. The raw materials of the impact resistant outer layer include a flame retardant and a crosslinkable polyethylene composition. The impact-resistant outer layer 31 and the heat-insulating inner layer 32 are integrally formed by rotational molding through a secondary feeding process, the heat-insulating inner layer 32 at the buckling surface of the box body 1 and the box cover 2 is folded inwards, and the impact-resistant outer layer 31 wraps the heat-insulating inner layer 32 and is folded inwards to form a matched stopper. The sealing port formed on the impact-resistant outer layer 31 of the box cover 2 comprises an arched sealing groove 312 formed around, and an arched sealing boss 311 is formed on the spigot formed on the impact-resistant outer layer 31 of the box body 1 in a matching manner; the sealing boss 311 is jacked into the sealing groove 312 and is pressed on the annular sealing strip 313 arranged at the bottom of the arched sealing groove, and the sealing grooves 312 and the sealing surfaces at two sides of the sealing boss 311 are matched and formed in a high-low staggered manner, so that a three-way buckling sealing structure is formed.
The raw material of the heat insulation inner layer 32 of the rotational molding shell 3 is added and fused to adhere to the wall, and the mixed silica aerogel foamed polyethylene powder is added to form a heat insulation filling layer adhered to the heat insulation inner layer.
The heat insulation felt 5 on the box cover 2 and the box body 1 adopts a silicon dioxide aerogel felt, is stuck on the outer surface of the foamed aluminum explosion-proof inner shell 6 through spot coating high temperature resistant glue, and is integrally pressed into the inner cavity of the rotational molding outer shell 3 along with the foamed aluminum explosion-proof inner shell 6; the top surface of the heat insulation felt 5 on the box cover 2 is jointed with the heat insulation inner layer 32, four side surfaces are jointed with the inner surface of the reverse folded part of the impact-resistant outer layer 31, the bottom surface of the heat insulation felt 5 on the box body is jointed with the heat insulation inner layer 32, and four side surfaces are jointed with the inner surface of the reverse folded part of the impact-resistant outer layer 31. The heat insulation felt 5 on the box cover 2 is shorter than the foamed aluminum explosion-proof inner shell 6, the heat insulation felt 5 on the box body 1 is correspondingly higher than the foamed aluminum explosion-proof inner shell 6, and the buckling surface of the heat insulation felt and the buckling surface of the foamed aluminum explosion-proof inner shell are in dislocation design.
The inner and outer surfaces of the foamed aluminum explosion-proof inner shell 6 are brushed with silica aerogel paint.
The bottom and the top of the rotational molding shell 3 of the box body 1 and the box cover 2 are distributed with cross or square or round bump lattices 8 which are arranged in a matrix, and the top lattices 8 of the box body 1 or the box cover 2 and the bottom lattices 8 of the upper box body 1 are mutually inserted and clamped to form an embedded assembly type anti-misplacement stacking structure; the top of the rotational molding shell of the box cover 2 is provided with an integrated handle 10, the side surfaces of the rotational molding shells 3 of the box body 1 and the box cover 2 are provided with inner concave rib grooves 9, and metal embedded parts are arranged in the inner concave rib grooves 9.
The ammunition box can be manufactured into various specifications, and the common ammunition box is provided with a ammunition, a shell and a missile packing box, wherein the overall dimension of the ammunition packing box is 550 multiplied by 366 multiplied by 170mm, the overall dimension of the ammunition packing box is 711 multiplied by 388 multiplied by 240mm, and the overall dimension of the medium-sized and small missile box is 1770 multiplied by 470 multiplied by 260mm. Performance testing was performed on a shell packing case with a composite wall thickness of 45mm, with the test method and results as follows.
Pressure-bearing performance: the box body is continuously loaded with a weight of 5t for 24 hours, and no obvious deformation exists;
impact resistance: after 1 kg.m/s low-speed impact, ammunition or initiating explosive device in the box does not explode, can bear 0.2MPa external explosion shock wave, and after GJB150.18-86 impact test, the box body has no obvious plastic deformation;
penetration resistance: the bullet can resist the shooting of a bullet of 7.62mm, can resist the striking of broken pieces of 10g and 1000m/s, and does not explode the internal ammunition or initiating explosive device when the broken pieces of 55g and 1400m/s are penetrated;
anti-gap performance: in a normal state, when the ammunition in the box explodes, the ammunition or initiating explosive devices in the adjacent cabins do not explode;
thermal insulation performance: the fire continues burning for 20min, and the temperature in the box rises below 50 ℃.
Natural environment adaptability index:
1) Operating environment temperature: -41-46 deg.c;
2) Storage limit temperature: -55 ℃,70 ℃;
(3) Relative humidity tolerance: has continuous working capacity under the condition of relative humidity of 95 percent (40 ℃);
(4) Resistance to salt spray corrosion: can resist the harmful effects of salt spray corrosion environmental conditions in offshore, coastal areas or in use;
(5) Solar radiation tolerance capability: in the folded state, the equipment does not deform, become sticky, crack, damage and the like under the condition of the solar radiation intensity of 1120W/m < 2 >;
(6) Rain resistance: can endure rain with the rainfall intensity of 6mm/min and the duration of 1 h;
(7) Bioerosion resistance: it should be resistant to the deleterious effects of various types of mold, fungi, termites and rodents.
Battlefield environmental service adaptability index:
1) Anti-drop performance: free falling at a height of 1.5m is not disintegrated;
(2) Vibration resistance: vibrating on a vibrating table with the vibration frequency of 4Hz and the acceleration of 1.0g for 60min, and specifically testing according to the GJB2711-1996 method 9, wherein the requirements are met;
(3) Concealing and anti-detecting performance: the external color coating meets the requirements of GJB1379-1992 on the color and coating of military vehicles, the outer surface of the box set is matte green for military vehicles, and the box set has the concealing and anti-detecting capabilities;
(4) Adaptability to deployment site: the method is suitable for different regional ranges of inland, highland, coast and the like, and is suitable for the topography conditions of the possibly unfolded region in the war;
(5) Transport properties: meeting the limit requirements of highway, railway, waterway and aviation transport means;
(6) Loading and unloading carrying adaptability: the requirements of GJB1181-1991 general outline of military equipment packaging, loading, unloading, storing and transporting are met, the external size, weight, gravity center and the like of a package part meet the requirements of GJB2683 product characteristics affecting the trafficability, the design of packaging and loading and unloading equipment, and the novel ammunition storage and transportation explosion-proof box can meet the carrying requirements of manpower, machinery and various loading, unloading and transporting equipment.
Claims (7)
1. The utility model provides a fire-retardant explosion-proof ammunition box, includes sealed chamber that box (1) encloses with case lid (2) of lock on box (1), its characterized in that: the box body (1) and the box cover (2) comprise a rotational molding outer shell (3), a heat insulation filling layer (4), a heat insulation felt or plate (5) layer and a metal foaming explosion-proof inner shell (6) from outside to inside, a vibration reduction mould shell (7) matched with ammunition in shape and specification is arranged in a containing cavity surrounded by the metal foaming explosion-proof inner shell (6) of the box body (1), the rotational molding outer shell (3) on the box cover (2) forms a step limiting sealing structure buckled by a primary and secondary through a matched arrangement of a stop and a mouth, the heat insulation felt or plate (5) surrounds the outside of the metal foaming explosion-proof inner shell (6), the heat insulation felt or plate (5) on the box cover (2) is shorter than the metal foaming explosion-proof inner shell (6), the heat insulation felt or plate (5) on the box body (1) is correspondingly higher than the metal foaming explosion-proof inner shell (6) to form a double-layer misplaced sealing structure, and the heat insulation filling layer (4) is a heat insulation material filled in a gap between the rotational molding outer shell (3) and the heat insulation felt or plate (5) layer;
the rotational molding shells (3) of the box body (1) and the box cover (2) comprise a flame-retardant cross-linked polyethylene impact-resistant outer layer (31) and a foamed polyethylene heat-insulating inner layer (32), the impact-resistant outer layer (31) and the heat-insulating inner layer (32) are integrally formed by rotational molding through a secondary feeding process, the heat-insulating inner layer (32) at the buckling surface of the box body (1) and the box cover (2) is folded inwards, and the impact-resistant outer layer (31) covers the heat-insulating inner layer (32) and is folded inwards to form a matched stopper;
the sealing opening formed on the anti-impact outer layer (31) of the box cover (2) comprises an arch-shaped sealing groove (312) formed around, and an arch-shaped sealing boss (311) is formed on the spigot formed on the anti-impact outer layer (31) of the box body (1) in a matching manner; the sealing boss (311) is jacked into the sealing groove (312) and is pressed on an annular sealing strip (313) arranged at the bottom of the arched sealing groove, and the sealing surfaces at the two sides of the sealing groove (312) and the sealing boss (311) are matched and formed in a high-low staggered manner to form a three-way buckling sealing structure;
the heat insulation felt or plate (5) on the box cover (2) and the box body (1) is stuck on the outer surface of the metal foaming explosion-proof inner shell (6), and is integrally pressed into the inner cavity of the rotational molding outer shell (3) along with the metal foaming explosion-proof inner shell (6); the top surface of the heat insulation felt or plate (5) on the box cover (2) is jointed with the heat insulation inner layer (32), four side surfaces are jointed with the inner surface of the reverse-folded part of the impact-resistant outer layer (31), the bottom surface of the heat insulation felt or plate (5) on the box body is jointed with the heat insulation inner layer (32), and four side surfaces are jointed with the inner surface of the reverse-folded part of the impact-resistant outer layer (31).
2. The flame retardant and explosion proof ammunition box according to claim 1, wherein: the heat insulation materials on the box cover (2) and the box body (1) are filled between the main body of the heat insulation inner layer (32) and the reverse folded part of the heat insulation inner layer (32) and the heat insulation felt or the plate (5), and the materials are loose polyurethane or phenolic resin foam or foaming polyethylene powder which is bonded on the rotational molding shell (3) and is mixed with silicon dioxide aerogel powder.
3. The flame retardant and explosion proof ammunition box according to claim 2, wherein: and (3) pouring the foaming polyethylene powder mixed with the silica aerogel powder when pouring and fusing the raw materials of the heat insulation inner layer (32) of the rotational molding shell (3) to adhere to the wall to form the heat insulation filling layer adhered on the heat insulation inner layer.
4. A fire-retardant and explosion-proof ammunition box according to any one of claims 1-3, wherein: the heat insulation felt or plate (5) layer is a silicon dioxide aerogel felt or plate.
5. The flame retardant and explosion proof ammunition box according to claim 4, wherein: the metal foaming explosion-proof inner shell (6) is made of foaming aluminum plates, and the vibration reduction mould shell (7) is made of foaming polyethylene.
6. The flame retardant and explosion proof ammunition box according to claim 5, wherein: the inner and outer surfaces of the metal foaming explosion-proof inner shell (6) are coated with silica aerogel paint.
7. The flame retardant and explosion proof ammunition box according to claim 6, wherein: the bottom and the top of the rotational molding shell (3) of the box body (1) and the box cover (2) are distributed with cross or square or round bump lattices (8) which are arranged in a matrix, and the top lattices (8) of the box body (1) or the box cover (2) and the bottom lattices (8) of the upper box body (1) are mutually inserted and sewn and clamped to form an embedded assembly type anti-misplacement stacking structure; the top of the rotational molding shell of the box cover (2) is provided with an integrated handle (10), the side surfaces of the rotational molding shell (3) of the box body (1) and the box cover (2) are provided with inner concave rib grooves (9), and metal connecting pieces with passivation films are arranged in the inner concave rib grooves (9).
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| CN201810461088.5A CN108426491B (en) | 2018-05-15 | 2018-05-15 | Flame-retardant explosion-proof ammunition box |
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| CN201810461088.5A CN108426491B (en) | 2018-05-15 | 2018-05-15 | Flame-retardant explosion-proof ammunition box |
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