751 results about "Sandwich panel" patented technology

The invention discloses a 3D printing layered honeycomb sandwich panel and a processing method thereof. The processing method comprises the steps that a digital forming platform is constructed, process parameters are initialized, a functional interface layer is laid on a printing substrate in advance, a three-dimensional model is generated, and the printing substrate is divided into a plurality of gradient areas; collaborative printing of a lower panel structure is executed, and a composite panel base body is formed by adopting a multi-nozzle alternate deposition process; according to the characteristics of the divided gradient areas, honeycomb units are formed layer by layer by dynamically controlling printing rheological parameters, and a gradient honeycomb core layer is constructed; the cooperative growth of the upper panel and the gradient honeycomb core layer is realized by adopting a rotary incongruous printing strategy; the performance of the core layer material is regulated and controlled through a multi-stage heat treatment process, and the functional interface layer is activated to obtain the honeycomb sandwich panel; according to the honeycomb sandwich board, the mechanical property customized distribution of the honeycomb core layer is realized, the surface-core interface bonding strength is improved by combining the directional activation mechanism of the micro interlocking structure and the functional interface layer, and the honeycomb sandwich board with high mechanical property and thermal stability is provided.

The invention discloses a multi-parameter collaborative optimization design method for lateral impact resistance of a honeycomb sandwich panel battery pack, and relates to the technical field of structural safety and lightweight design of new energy automobile battery packs. An existing battery pack generally has the defects of insufficient light weight, limited energy absorption efficiency and lack of multi-parameter collaborative optimization with an upper box body, a lower box body and a stiffening beam in impact resistance research. Therefore, according to the honeycomb sandwich panel battery pack lateral impact resistance multi-parameter collaborative optimization design and parameter calculation method, a honeycomb sandwich panel finite element model is established, performance parameters are obtained, an optimal energy absorption combination is screened, then a battery pack box body finite element model is established, and multiple design variables are set; and constructing a function relationship between variables and responses by utilizing an agent model, and carrying out multi-objective optimization by combining an NSGA-II algorithm to finally obtain an optimal design parameter meeting a safety threshold and carrying out simulation verification. The method is suitable for battery pack anti-impact protection design work of the electric automobile under the lateral collision working condition.

The utility model relates to a mineral wool sandwich board PIR edge sealing production system which comprises a white material storage tank, a pentane storage tank, an on-line cutting precision mixer, a transition tank, a black material storage tank and a mixing head. Due to the fact that the using amount of edge sealing materials is small, the mixing effect of polyester and pentane is affected, and edge sealing sandwich boards with high fire resistance cannot be manufactured, the system cuts, extrudes, impacts and disperses white materials and pentane in the mixer by increasing flow feeding, and the mixing effect is improved. Due to the fact that the premixing white material amount consumed by the mixing head is small, discharging of the mixing head cannot be interrupted, and the output of the premixing white material is different from the premixing white material amount consumed by the mixing head, in order to achieve flow balance of the premixing white material and the premixing white material amount consumed by the mixing head, flow balance is achieved by increasing the premixing white material flow + intermittent feeding = small flow of the mixing head + continuous discharging. The middle transfer transition device caches the premixed white material to solve the problem of uninterrupted discharging of the mixing head so as to achieve continuous production, and the major problem that online mixing foaming cannot be achieved due to small flow of polyester and pentane is successfully solved.

The invention relates to the field of composite sandwich panel processing equipment, in particular to a purified composite sandwich panel equidistant cutting device which comprises a cutting guide seat used for supporting, a limiting guide plate located at the position, close to the middle, of the inner end face of the cutting guide seat, and two sets of material guide rotating rollers located on the front portion of the inner end face of the cutting guide seat. When a sandwich panel is circularly processed, the gear motor can synchronously provide power for the guide device and the material guide rotating rollers through the transmission device, so that the front and rear groups of material guide rotating rollers can intermittently drive the sandwich panel to feed, and meanwhile, the guide device can be matched with the material guide rotating rollers to intermittently feed the sandwich panel; the cutting device is provided with the material guide rotating roller, so that circulating up-and-down reciprocating power is provided for the cutting device, a cutting tool in the cutting device can conduct circulating equal-distance cutting on the sandwich panel according to the feeding interval of the material guide rotating roller on the sandwich panel, and the processing efficiency of the equipment on the sandwich panel and the utilization efficiency of the power are effectively improved.

The invention belongs to the technical field of composite material structures and energy storage, and discloses a multifunctional energy storage composite structure of an embedded lithium ion battery and a preparation method of the multifunctional energy storage composite structure. The composite structure comprises an upper-layer skin, a lower-layer skin and an integrated energy storage layer located in the middle. The integrated energy storage layer comprises a sandwich panel and an energy storage unit; the sandwich panel is provided with a honeycomb or a grid; the energy storage units are embedded into honeycombs or grids of the sandwich panel; the raw materials of the upper-layer skin and the lower-layer skin are at least one layer of fiber prepreg. Through the application of the epoxy resin fiber composite material (fiber prepreg), the battery pack body becomes a part of the structure, electrical-structural integration is realized, an independent metal battery shell is not needed, the weight is reduced, and the bearing capacity and the heat-conducting and electrical-conducting properties of fibers are fully utilized; a hot-pressing integrated process is adopted for preparation, the technological process is simple and feasible, and the manufacturing cost is reduced.

The invention relates to the technical field of open-web sandwich plate hoisting, and discloses assembly type open-web sandwich plate hoisting equipment and a hoisting method.The assembly type open-web sandwich plate hoisting equipment comprises a main hoisting connecting piece, a supporting frame is fixedly connected to the lower side of the main hoisting connecting piece, and a moving mechanism is fixedly connected to the lower side of the supporting frame; the lower side of the moving mechanism is fixedly connected with magnetic hoisting sets which are evenly distributed, the two ends of the supporting frame are fixedly connected with lifting assemblies, and the sides, away from the supporting frame, of the lifting assemblies are fixedly connected with adjustable hoisting sets. The adjustable hoisting set comprises a first chain wheel, a second chain wheel, a first annular chain and a second annular chain. According to the invention, through the cooperative action of the adjustable hoisting group, the lifting assembly and the shaft body assembly, the existing mode of adopting single hoisting force can be changed, the problems of low hoisting precision and poor positioning precision in the prior art are solved, and meanwhile, through the cooperative action of the magnetic hoisting group and the adjustable hoisting group, the purpose of dual hoisting is realized; and the hoisting safety is improved.

The invention discloses a high-strength, light-weight and multifunctional composite shell for a warhead, and relates to the field of ship protection, the composite shell comprises a front protection layer, a rear protection layer and a composite sandwich panel arranged between the front protection layer and the rear protection layer, the composite sandwich panel is of a honeycomb structure, and the composite sandwich panel is of a honeycomb structure. The honeycomb structure is filled with energy-absorbing substances. The energy absorption substance is shear thickening glue doped with silicon dioxide particles. By manufacturing the light multifunctional composite shell and integrating the energy absorption layer, the impact resistance and fragment penetration resistance of the shell are improved. Material distribution is optimized, light weight and structural strength are balanced, a shear thickening material (STG) is added, and multi-dimensional energy dissipation is achieved.

The utility model discloses a metal surface mesh-woven reinforced heat-preservation sandwich board structure which comprises a metal panel, a metal mesh-woven reinforced heat-preservation sandwich board and a metal mesh-woven reinforced heat-preservation sandwich board, the utility model relates to the technical field of building materials, and adopts a sewing technology, namely a technology for integrally reinforcing mechanical strength by sewing and combining fiber bare cotton boards and glass fiber mesh cloth through various twisted threads such as basalt fibers and the like on fiber cotton boards such as rock wool, mineral wool, glass wool and the like wrapped by fabrics such as the glass fiber mesh cloth. A one-way annular chain-type continuous locking ring is adopted to penetrate and reinforce a plane material and a thermal insulation material into a whole, as the chain-type continuous locking ring generally has the characteristic of one-way loosening, continuous locking ring penetrating reinforcement can be carried out again in the opposite direction after one-way continuous penetrating reinforcement according to requirements, and finally the purpose that the plane material and the thermal insulation material are cut from any part of the thermal insulation material is achieved. The chain rings on the periphery of the cutting section are not loosened, so that the integrity of the whole insulation board is enhanced, and the insulation board is not easy to loosen.

The invention provides a replaceable phase-change temperature-adjusting modular composite color steel sandwich panel and a preparation method thereof.The replaceable phase-change temperature-adjusting modular composite color steel sandwich panel is characterized in that phase-change heat preservation blankets, substrates and heat conduction adjusting layers of different specifications are adopted, and the phase-change heat preservation blankets of different specifications are distinguished according to different phase-change temperature ranges; the base plate comprises an upper surface layer color steel plate, a core material and a lower surface layer color steel plate, and a heat conduction adjusting layer is evenly distributed on the outer surface of the upper surface layer color steel plate. The phase change heat preservation blanket is installed on the outer surface of the heat conduction adjusting layer in a magnetic attraction positioning and sliding groove clamping and embedding mode. A plurality of heat conduction pieces are arranged on the side, facing the heat conduction adjusting layer, of the phase change heat preservation blanket, and an RFID tag is arranged on the side, away from the heat conduction adjusting layer, of the phase change heat preservation blanket. By means of the split design of the phase change heat preservation blanket and the base plate, the phase change heat preservation blanket suitable for the environment temperature can be replaced according to the environment temperature change, and seasonal heat management is achieved.

The invention discloses a method for regenerating blades of an H-type vertical axis micro-wind generator from waste wind power blades, which relates to the field of resource recovery and reuse. The waste wind power blades are cut into profiles to manufacture the blades of the H-type vertical axis micro-wind generator. The epoxy resin fiberglass sandwich panel of the waste wind power blade has the characteristics of light weight, high strength and corrosion resistance. The fiberglass sandwich panel of the waste wind power blade is used to replace aluminum alloy to produce the blades of the H-type vertical axis micro-wind generator, so that the waste wind power blades are reused. While ensuring the strength of the blades of the H-type vertical axis micro-wind generator, the weight of the blades of the H-type vertical axis micro-wind generator is reduced, the load of the support structure and the transmission system is alleviated, and the blades of the H-type vertical axis micro-wind generator are easier to start and accelerate at a lower wind speed, so that they can operate in a wider wind speed range; the wind energy capture efficiency is improved, the waste wind power blades obtain a second life, and thus the recycling of resources is realized, promoting sustainable development.

The utility model relates to the technical field of cold storage sandwich panels, and discloses a heat preservation and insulation cold storage sandwich panel which solves the problems that an existing cold storage sandwich panel is poor in buffering and anti-collision effect, the appearance and structural integrity of the cold storage sandwich panel are prone to being affected when the cold storage sandwich panel is impacted, and the heat preservation effect is prone to being affected. A heat preservation and insulation cold storage sandwich panel comprises a sandwich panel body, a base material layer, a heat preservation layer, a waterproof layer, a heat insulation layer, a fireproof layer, a protection layer and a buffering anti-collision layer, a buffering cushion provides a flexible protection structure, deformation is conveniently generated when the sandwich panel is impacted by external force, and therefore impact energy is absorbed and dispersed, impact force is reduced, and the service life of the sandwich panel is prolonged. The buffering effect can be further enhanced through the buffering cavities and the filler, more impact energy is absorbed through compression deformation of the filler, the direct effect of external force on the sandwich board body is reduced, meanwhile, air in the buffering cavities can be conveniently exhausted through the vent holes, pressure can be quickly released, and impact force can be relieved.

The invention discloses a roof sandwich plate and embedded part composite connecting structure for a rail transit vehicle and a process of the roof sandwich plate and embedded part composite connecting structure, and relates to the technical field of mechanical connecting structures. The multi-layer composite board is composed of an upper panel, a lower panel and a light core material, the pre-buried metal section bar is installed on the edge of the board through a glue joint layer, the framework edge beam is arranged on the board in a sleeved mode through a clamping groove and is in glue joint with the upper panel and the lower panel, and the framework edge beam, the upper panel and the lower panel are mechanically connected and fixed through the mechanical locking unit. By means of the composite connection structure of glue joint and mechanical locking, the connection strength of the roof sandwich plate and the embedded part is guaranteed, the reliability and durability of connection are improved, and the comprehensive requirements of rail transit vehicles for high reliability, high durability and light weight of the roof structure are met.

The invention provides a manufacturing method and processing equipment for a quartz sandwich panel, and the manufacturing method for the quartz sandwich panel comprises the following steps: putting a quartz plate, namely putting the quartz plate from one side, far away from a second row gun, of a first row gun; the conveying device is used for conveying quartz plates to the first row of guns and the second row of guns; the quartz plate is preheated by the first row gun; the quartz plate is heated and softened by the second row gun; the extrusion shaft is used for pressing the quartz plate; and completing the production of the quartz sandwich panel. The problems of low quality and low production efficiency of the quartz plate for the semiconductor in the prior art are solved.

The invention relates to the technical field of aerospace structure safety, and discloses a flying bird anti-collision device with a foamed aluminum sandwich energy-absorbing structure, the flying bird anti-collision device comprises an assembly frame and an outer frame as the device, the corners of the outer side of the assembly frame are provided with assembly cylinders, and the assembly frame is assembled in the head of an aircraft through the assembly cylinders; the front panel is arranged on the inner side of the assembly frame and is used for bearing a first collision impact; the buffering assembly is arranged on the inner side of the assembling frame and used for buffering the first impact; the sandwich board is arranged on the inner side of the assembly frame and used for bearing the buffered impact; and the rear panel is arranged on the inner side of the assembly frame and is used for bearing the impact which is buffered twice. Through ordered hierarchical arrangement of the front panel, the buffer assembly, the foamed aluminum sandwich panel and the rear panel, a synergistic energy absorption system and a multi-structure synergistic gradient protection mechanism are constructed, impact is decomposed into a plurality of controllable energy dissipation stages, and efficient management and dissipation of impact energy are achieved.

The invention belongs to the technical field of laser cutting, and particularly relates to a color steel sandwich panel size cutting device which comprises a workbench and further comprises two extrusion limiting mechanisms, a laser cutting mechanism, a smoke suction mechanism, a laser power synchronous regulation and control mechanism and a panel thickness feedback regulation and control mechanism. The thickness can be synchronously detected and fed back, and the clamping force (the larger the thickness is, the larger the force is) of the extrusion limiting mechanism is automatically adjusted and controlled to guarantee the cutting stability; the laser cutting power is synchronously regulated and controlled (the larger the thickness is, the larger the power is), the penetrating power is ensured, and material ablation is avoided; the rotating angular speed of the laser cutting mechanism can be automatically regulated and controlled according to the thickness and the cutting diameter, and the linear speed is stabilized to guarantee the cutting quality; meanwhile, cutting smoke can be rapidly adsorbed, the suction power can be automatically adjusted and controlled according to the thickness (the larger the thickness is, the larger the thickness is), pollution is avoided, slag adhering and burr adhering to a notch of the thin plate are prevented, and the cutting quality is comprehensively guaranteed.

The utility model discloses a moisture-proof and water-proof bathroom partition board, and belongs to the technical field of bathroom partitions. The damp-proof and waterproof toilet partition board comprises a partition board body, the partition board body comprises a metal frame used for supporting the structure of the partition board body, a honeycomb sandwich board is fixedly connected to the interior of the metal frame, an upper waterproof board is fixedly connected to the upper end face of the metal frame, and clamping grooves are formed in the four corners of the upper end face of the upper waterproof board. The partition board body is designed into a small block combination type, in the transportation link, the size and weight of a single piece are obviously reduced, carrying, loading and unloading are easy, the transportation cost and difficulty are reduced, and the collision damage risk in the transportation process is reduced. In the later use process, if local damage occurs, the whole partition does not need to be replaced, only the corresponding small partition plate bodies need to be disassembled, maintained or replaced in a targeted mode, time and labor are saved, economy and efficiency are achieved, and the maintenance cost and interference to normal use of a toilet are reduced to the maximum extent.

The present disclosure relates to a honeycomb sandwich type vacuum insulation panel and a vacuum insulation panel system, wherein an insulation panel installed between a primary gas barrier and a secondary gas barrier of a cryogenic liquid fuel storage tank is formed as a honeycomb sandwich panel of a honeycomb structure to improve and maximize insulation of the cryogenic liquid fuel storage tank, and to provide a honeycomb sandwich type vacuum insulation panel and a vacuum insulation panel system capable of minimizing heat loss, wherein in a cryogenic liquid fuel storage tank including a primary gas barrier, an insulation panel, and a secondary gas barrier for accommodating a cryogenic liquid fuel including liquid hydrogen therein, a honeycomb sandwich panel installed between the primary gas barrier and the secondary gas barrier to insulate the cryogenic liquid fuel storage tank; a vacuum film that accommodates the honeycomb sandwich panel inside and vacuumizes; and breakage prevention pads installed at each corner of the honeycomb sandwich panel in contact with the vacuum film to prevent breakage of the vacuum film.

The utility model discloses an indoor ski field pipeline penetrating heat preservation and cold bridge prevention structure which comprises a heat preservation plate, a pipeline and a first heat preservation layer. The insulation board is a metal rock wool sandwich board, the pipeline penetrates through the insulation board, and a first insulation layer is arranged between the pipeline and the insulation board; the pipeline comprises a first pipeline, and when the first pipeline is a fire fighting pipeline or an air conditioner pipeline, the anti-cold-bridge structure further comprises a second heat preservation layer, a third heat preservation layer, an air isolation layer, a first fixing device and a first protection pipe. The first pipeline is sleeved with the first protection pipe, and the space between the first pipeline and the first protection pipe is filled with a second heat preservation layer; the joint of the side, facing the outdoor space, of the first pipeline and the heat preservation plate is coated with an air isolation layer. Heat transfer between the interior of the snow field and the structural layer can be efficiently isolated, the temperature of the structural layer and the temperature of the bottom of the snow layer are stabilized with extremely low heat supplement, extra energy consumption is greatly reduced, and the service life is prolonged.

The invention provides a color steel sandwich panel hoisting device, which belongs to the technical field of hoisting, is used for clamping and hoisting a color steel sandwich panel, and comprises a hoisting bracket, a lifting mechanism, a lifting mechanism and a lifting mechanism, the clamping device is arranged at the lower end of the hoisting support, the clamping device at least comprises two clamping assemblies arranged at intervals, and each clamping assembly comprises a shear shank assembly and a clamping plate assembly arranged at the lower end of the shear shank assembly; and the safety limiting device is arranged on the outer side of the clamping plate assembly, the safety limiting device comprises a limiting rod, the tail end of the limiting rod is rotationally connected with a limiting disc, and a limiting protrusion is fixed to the side wall of the limiting disc. The color steel sandwich panel is stably limited under the dual action, and the safety and stability of the color steel sandwich panel in the hoisting process are guaranteed.

The sandwich panel of the present invention comprises: a foamed molded body; a first thermoplastic continuous fiber reinforced woven body fused to an upper portion of the foamed molded body; a second thermoplastic continuous fiber reinforced woven body fused to a lower portion of the foamed molded body; and one or more composite material bars embedded in the foamed molded body. The sandwich panel exhibits excellent rigidity (flexural strength, flexural rigidity, and maximum deflection), lightweight properties, and the like.

The utility model relates to a noise reduction and sound insulation type aluminum veneer splicing assembly which comprises a middle section plate layer. The upper end and the lower end of the middle section plate layer are integrally connected with a top sound insulation arc plate and a bottom sound insulation arc plate correspondingly, and the bottom sound insulation arc plate is of a solid plate body structure. The top sound insulation arc plate is of a hollow sandwich plate structure, and a built-in hollow structure of the top sound insulation arc plate is filled with reinforcing ribs; the middle plate layer is of a hollow sandwich plate structure, the middle plate layer is composed of a back plate and a front plate, and the space between the back plate and the front plate is filled with a sound insulation filling layer. The utility model provides a noise reduction and sound insulation type aluminum veneer splicing assembly. A left-right horizontal combined and spliced assembly structure is adopted, meanwhile, the sound wave collection area of noise is enlarged by matching with the structure of the arc-shaped end faces of the upper end and the lower end, and the noise reduction performance is further improved; the technical problems that the installation structure is unstable and the noise reduction area is small in the side-by-side installation process of a single set of noise reduction boards in the past are solved.

This utility model discloses a waterproof structure for lightweight aggregate concrete partition walls, relating to the technical field of concrete partition walls. It includes an autoclaved aerated concrete (AAC) plate, with two foamed sandwich panels fixed to its outer wall. Gypsum board is fixed to the side of each foamed sandwich panel that is far from each other. A reinforcing plate extends from one side of the AAC plate, and a retaining strip extends from the side of the reinforcing plate away from the AAC plate. A retaining groove is formed between the end of the AAC plate away from the reinforcing plate and the two foamed sandwich panels. The AAC plate, reinforcing plate, and retaining strip are integrated. Through the AAC plate, reinforcing plate, retaining strip, retaining groove, main reinforcing groove, and secondary reinforcing groove, the overall structural strength of the wall can be enhanced. Simultaneously, the wall is spliced ​​using a retaining method, and the space at the splice can be used to pour cement slurry, filling the splice to increase the stress points of the wall and improve the overall strength of the wall.

The application relates to a ship composite material corrugated sandwich panel structure and a forming method thereof. A plurality of first foam corrugated strips and second foam corrugated strips are pre-assembled in an up-down staggered mode, a plurality of first foam corrugated strips are connected to form a first foam corrugated assembly through a glass fiber mat, a second fiber cloth is laid on the first foam corrugated assembly through a row-by-row die assembly process, a second foam corrugated strip is laid on the second fiber cloth, a glass fiber mat with glue is laid on the plurality of second foam corrugated strips, a third fiber cloth is laid on the glass fiber mat, a reinforcing rib member is laid on the outer side of the third fiber cloth and is wrapped with the fiber cloth, a preformed body is completed, and finally, a composite corrugated sandwich panel is obtained through vacuum pouring. The application is simple and convenient to operate, controllable preparation of a corrugated-foam hybrid core material is realized, process problems of a complex structure in forming precision, interface combination and form control are solved, and a feasible manufacturing approach is provided for practical application of the complex structure in a lightweight shell of a ship.

Provided is an antenna integrated structure in which an antenna is inserted into ground vehicle, marine ship and aircraft structure, and more particularly, a sandwich panel type antenna integrated latticecore having a structure for improving communication performance of an antenna module.

The invention discloses a heat-insulation and sound-insulation honeycomb sandwich panel and a preparation method thereof, and relates to the technical field of composite materials. The method utilizes hollow ceramic microsphere modified polyurethane foam to enhance sound absorption, heat insulation and sound insulation of a honeycomb sandwich panel, and comprises the following steps: uniformly mixing polyether polyol, a polyurethane catalyst, surfactant silicone oil, dibutyltin dilaurate, triethanolamine, glycerol and deionized water, and ensuring full dissolution to obtain a mixed solution A; adding hollow ceramic microspheres into isocyanate, uniformly stirring, slowly adding the mixed solution A, and uniformly stirring and mixing to obtain a mixed solution B; and pouring the mixed solution B into a plastic honeycomb mold, ensuring uniform distribution of the liquid, and naturally foaming and curing. And compounding the filled plastic honeycomb with the carbon fiber panel by using epoxy resin to obtain the sandwich panel. According to the carbon fiber / composite plastic honeycomb sandwich plate prepared by the invention, the sound absorption, sound insulation and heat insulation properties are improved while the mechanical properties are ensured.

The utility model discloses a sound insulation type composite color steel sandwich plate which comprises a composite color steel plate, a protruding strip is fixedly connected to one side of the upper end of the composite color steel plate, four grooves are evenly formed in the protruding strip, threaded holes are fixedly formed in the middles of the interiors of the grooves and one side end of the composite color steel plate, and the threaded holes are communicated with the protruding strip. A plurality of threaded holes are formed in the convex strips, threaded connecting pieces are connected into the threaded holes, a plurality of clamping plates are arranged and attached to the convex strips, clamping blocks are fixedly connected to the lower ends of the clamping plates, and the clamping blocks are inserted into the upper ends of the interiors of the grooves. The section cutting plane of the clamping plate is of the arc-shaped structure, so that the clamping plate and the protruding strip are attached more tightly, the threaded connecting piece in the groove is sealed through the clamping plate, water is not prone to accumulating in the groove, the threaded connecting piece in the groove is not prone to being affected by rainwater erosion, and the service life of the threaded connecting piece is prolonged. And the service life of the threaded connecting piece is prolonged.

The utility model belongs to the technical field of sandwich panels, and particularly relates to an environment-friendly flame-retardant polyurethane sandwich panel which comprises a sandwich panel body, and a hard metal plate is wrapped outside the sandwich panel body. A flame-retardant isolation layer, a polyurethane foam layer and a polystyrene foam layer are further arranged in the sandwich panel body, and the flame-retardant isolation layer is arranged between the polyurethane foam layer and the polystyrene foam layer; the flame-retardant isolation layer comprises an aluminum honeycomb and a glass magnesium filler, and the glass magnesium filler is arranged in holes of the aluminum honeycomb; the left side and the right side of the laminboard body are provided with three connectors and three connecting grooves respectively, and the connectors are matched with the connecting grooves. According to the sandwich board, more environment-friendly and flame-retardant materials are adopted to serve as inner core filling, the heat preservation performance of the board is improved, meanwhile, the fireproof performance is improved, the overall weight of the board is reduced, and splicing and using are facilitated.

A support box apparatus includes longitudinal members that span forward to aft and transverse members that span inboard to outboard between the longitudinal members. The longitudinal members and the transverse members are formed of composite honeycomb sandwich panels. The support box apparatus also includes attachment components configured to couple the longitudinal members or the transverse members to structural components of an aircraft, electrical wiring attached to the longitudinal members or the transverse members, environmental control system (ECS) ducting attached to the longitudinal members or the transverse members, and life support lines attached to the longitudinal members or the transverse members.

A composite material layer, the composite material layer comprising a curable resin which is in the form of a solid layer at 20°C, wherein the composite material layer comprises a prepreg comprising a