958 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 relates to the technical field of nondestructive testing, and particularly discloses a detection and positioning method and system for foaming defects of a sandwich foaming board, and the detection and positioning method comprises the following steps: S1, equipment preparation and environment control; s2, data acquisition: comprehensively scanning the sandwich panel by using an infrared thermal imager, and recording temperature distribution data; s3, performing normalization processing on the infrared thermal imaging and electromagnetic induction data, extracting key features such as temperature gradient from the infrared thermal imaging data, and extracting key features such as electromagnetic induction intensity change from the electromagnetic induction data; s4, establishing a sandwich foam board defect identification and classification model, and training a neural network model by using the data of the sandwich foam board marked with defects; and S5, inputting the preprocessed data into the trained sandwich foam board defect identification and classification model. The advanced thermal infrared imager is combined with the electromagnetic induction technology, and the deep learning model is used for intelligent identification and classification, so that the detection precision is improved, and good adaptability and real-time performance are achieved.

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 multifunctional acoustic device is formed by periodically arranging unit cells in the horizontal direction, and each unit cell comprises an upper frame body, a lower frame body and a vibration absorption sandwich layer located between the upper frame body and the lower frame body; the upper frame body is provided with a through hole; the vibration absorption sandwich layer comprises a central cantilever beam located at the transverse center position, a sandwich plate surrounding the periphery of the central cantilever beam and fixed between the upper frame body and the lower frame body, and vibrator mass blocks arranged above and below the central cantilever beam; the sandwich plate is connected with the central cantilever beam through a plurality of L-shaped beams; and the plurality of L-shaped beams surround the periphery of the central cantilever beam. The lattice sandwich structure is used as a basic frame, a local resonance system with a spring mass part is formed, a sub-wavelength elastic wave band gap frequency band is obtained, a low-frequency vibration reduction effect is generated, holes are formed in the upper frame body, the remaining part in the structure is used as an air spring, a Helmholtz resonant cavity is formed, and meanwhile low-frequency vibration reduction and broadband sound absorption are achieved.

The utility model discloses an assembly type concrete open-web sandwich plate hoisting device, an open-web sandwich plate is a #-shaped prefabricated part, the hoisting device comprises a hoisting tool, and the hoisting tool comprises an upper sling, an upper transverse hoisting beam, a lower sling, a lower transverse hoisting beam and an opening clamping device; the two upper transverse hanging beams are rotationally arranged in a mutually crossed manner, and the upper sling is connected to the crossed position of the two upper transverse hanging beams; the lower slings are arranged at the two ends of each upper transverse hanging beam respectively, the other end of each lower sling is connected with the corresponding lower transverse hanging beam, and an opening clamping device is arranged at the other end of each lower transverse hanging beam. By applying the hoisting device for the fabricated concrete open-web sandwich plate, the hoisting problem of the fabricated concrete open-web sandwich plate is effectively solved.

The invention relates to the technical field of sandwich composite materials, and particularly discloses a co-curing preparation method of a honeycomb sandwich composite material for an airplane, which comprises a lower mold, a prepreg laying layer, a honeycomb core body, an upper mold, an annular glue suction felt, a vacuum nozzle, a sealant and a vacuum bag, and further comprises the following steps: cleaning the molds by using a cleaning agent, wiping the contact surface of the mold and the sandwich plate to be dry to ensure that no obvious foreign matters exist on the surface; compared with traditional gluing forming, the upper die and the lower die are adopted for controlling the surface quality of the upper panel and the lower panel of the honeycomb sandwich composite material respectively, the technological process is simple, the production period is short, the gluing performance is better, compared with a traditional co-curing forming technology, the quality of the panel is higher, and the mechanical property of a formed component is better; the prepreg fibers can be prevented from buckling, so that the honeycomb sandwich composite material is more stable in quality and lower in rejection rate, and the preparation cost can be effectively reduced.

The invention belongs to the field of bionic composite material structure engineering, and discloses a bionic honeycomb-like structure sandwich panel with impact resistance and a preparation method thereof, and the bionic honeycomb-like structure sandwich panel with impact resistance comprises an upper skin, a middle honeycomb-like structure interlayer and a lower skin which are sequentially arranged from top to bottom; the interlayer of the middle honeycomb-like structure is composed of a plurality of honeycomb units in the shape of imitated chrysanthemum stone suture lines. The sandwich layer of a honeycomb-like structure is arranged according to the shape characteristics of the bionic chrysanthemum stone suture line, the honeycomb wall of each honeycomb unit in the shape of the bionic chrysanthemum stone suture line is in a secondary wave shape, the overall strength of the sandwich board can be effectively improved, and effective absorption of energy and damage tolerance are achieved; the hollow characteristic of the honeycomb-like structure can reduce the dead weight of the sandwich panel, the sandwich panel is endowed with the characteristic of light weight, and the sandwich panel has a good development prospect in the field of impact resistance protection.

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 belongs to the technical field of hoisting management and control, and particularly relates to a hoisting construction control system for an open-web sandwich plate structure, which comprises a hoisting equipment integration module, an intelligent control adjustment module, a hoisting monitoring module, a hoisting risk evaluation module and a hoisting supervision end, according to the invention, an open-web sandwich plate structure is fixed and hoisted through the hoisting equipment integration module, the intelligent control module controls the hoisting process of a hoisting machine, and the hoisting monitoring module monitors the hoisting process of the open-web sandwich plate structure and sends monitoring information to the hoisting risk assessment module; and the hoisting risk evaluation module comprehensively evaluates the hoisting risk based on the hoisting information, and enhances hoisting supervision and takes reasonable countermeasures when a hoisting high-risk signal is generated, so that the hoisting risk is reduced, hoisting safety accidents can be avoided, and the supervision difficulty in the hoisting process of the open-web sandwich plate structure is remarkably reduced.

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 relates to a honeycomb sandwich type vacuum insulation panel and a vacuum insulation panel system, and provides the honeycomb sandwich type vacuum insulation panel and the vacuum insulation panel system. An insulating panel mounted between a main gas barrier and an auxiliary gas barrier of a low-temperature liquid fuel tank is formed as a honeycomb sandwich panel having a honeycomb structure, so that insulation of the low-temperature liquid fuel tank can be improved and maximized, and heat loss thereof can be minimized. The cryogenic liquid fuel tank includes a primary gas barrier, an insulating panel, and a secondary gas barrier such that cryogenic liquid fuel containing liquefied hydrogen is contained therein, the cryogenic liquid fuel tank including: a honeycomb sandwich panel mounted between the primary gas barrier and the secondary gas barrier to insulate the cryogenic liquid fuel tank; a vacuum film accommodating and evacuating the honeycomb sandwich panel; and a breakage-proof pad installed at each corner of the honeycomb sandwich panel in contact with the vacuum film and preventing damage to the vacuum film.

The present invention relates to a plastic sandwich panel (1) comprising a core layer (2) and two cover layers (3, 3') arranged on both sides of the core layer (2), each made of a cover layer polymer material, wherein the core layer (2) is formed of a foamed core layer polymer material, and the core layer polymer material and the cover layer polymer material are each formed of a polyester material and comprise at least 80 wt.% of the same base polymer type. Furthermore, the present invention relates to a method for producing such a plastic sandwich panel (1), wherein the two cover layers (3, 3') are each thermally bonded to one side of the core layer (2), preferably using a double-belt press.

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.

A facade element (1D), to be fastened to a building structure with other such facade elements (1A, 1B, 1C) to build one of the external walls of the building. The facade element includes an assembly of sandwich panels fastened to a metal framework, an upper waterproofing membrane that covers up an upper edge of the facade element, and a lower waterproofing membrane (5D) fixed to the inner face of the facade element. The lower waterproofing membrane extends beyond a lower edge of the facade element, up to an outer face of another facade element (1B) placed below. Both the upper and lower waterproofing membranes have overhanging parts (51D), extending beyond the left (35D) and right edges of the facade element. A building facade, and to a process for the assembling of a building facade is also provided.

The embodiment of the invention provides a laminboard stacking system and method, the laminboard stacking system comprises a transmission mechanism, a transverse movement alignment mechanism, a turnover mechanism and a translation stacking mechanism, a laminboard abuts against the transmission surface of the transmission mechanism, and the transmission mechanism is used for driving the laminboard to move to a carrying position. The transverse moving alignment mechanism is arranged on the conveying mechanism in a lifting mode, and when the transverse moving alignment mechanism ascends, the transverse moving alignment mechanism drives the laminboards to ascend from the carrying position and drives the laminboards to move towards the inner side of the conveying mechanism, so that the positions of the laminboards on the carrying position are the same, and stacking regularity is guaranteed. The turnover mechanism turns over the stacked first sandwich panel, and the turned sandwich panel is lifted by the translation stacking mechanism and moved to the stacking table to be stacked. And if the laminboard is not stacked for the first time, the turnover mechanism does not work, and the laminboard is directly moved to the stacking table to be stacked by the translation stacking mechanism. The upper surface and the lower surface of the sandwich board stack are inner side surfaces of the sandwich boards, so that the outer side surfaces cannot be damaged in the transportation process.

The utility model relates to bending equipment for a rock wool sandwich panel, which comprises a support frame, a conveying roller group for conveying workpieces is mounted on the support frame in a matching manner, and a first pressing mechanism and a second pressing mechanism are sequentially mounted at the top of the support frame behind the conveying roller group; two symmetrically-arranged positioning mechanisms are installed on the top of the supporting frame in front of the conveying roller set in a matched mode, the working end of each positioning mechanism corresponds to the V-shaped groove in shape, the two positioning mechanisms are inserted into the V-shaped groove at the same time to position a workpiece, and therefore the workpiece is centered. A bending mechanism is further installed on the supporting frame in a matched mode, the bending mechanism is located between the two positioning mechanisms, and the bending mechanism turns over to drive the centered workpiece to be bent, so that a 90-degree rotating angle is formed on the workpiece. By arranging the first pressing mechanism, the second pressing mechanism, the positioning mechanism and the bending mechanism, full-automatic production can be achieved, so that the production time is shortened, the machining efficiency is improved, and the consistency of machined products is guaranteed.

The utility model relates to the technical field of building materials, and solves the problems that when a worker installs and assembles a color steel sandwich plate and a good medical color steel sandwich plate, the color steel sandwich plate and the good medical color steel sandwich plate are mostly installed by screws, so that subsequent disassembly is inconvenient, and when the worker installs the color steel sandwich plate and the good medical color steel sandwich plate at corners, the worker needs to replace a connecting device, so that the applicability of the connecting device is poor. The quick connecting device comprises a connecting block, a sliding groove is formed in the top face of the connecting block, an adjusting rod is slidably connected into the sliding groove, a mounting block is fixedly connected to one side of the surface of the adjusting rod, and clamping plates are fixedly connected to the two sides of the surface of the connecting block. A fixing assembly is arranged on the surface of the clamping plate, the fixing assembly comprises a screw rod, the surface of the screw rod penetrates through the middle of the surface of the clamping plate in a threaded mode, one end of the screw rod is rotationally connected with a fixing plate, an anti-skid block is attached to the surface of the fixing plate, and the anti-skid block is made of a flexible material.

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 high-temperature heater comprises a heater body, the heater body comprises a base, a lower layer plate, a sandwich plate, a middle plate and an upper layer plate, an electrode plate is installed between the upper layer plate and the middle plate, a heating element is installed between the middle plate and the sandwich plate, and a heat insulation element is installed between the sandwich plate and the lower layer plate; the heating element is connected with the conductive column, and the electrode is connected to the current feed-in interface through the bias voltage radio frequency module. Compared with the prior art, the heating device has the advantages that the heating device can be heated to more than 900 DEG C, the high-temperature-resistant electrode is arranged in the heating device, so that bias radio frequency can be carried out under the high-temperature condition, various process combinations are realized, the process uniformity of wafers is improved, the blowing air channel is arranged in the heating device, the heating element is prevented from being oxidized, and the service life of the heating device is prolonged.

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 high and steep slope overhanging greening ecological device which comprises a growth bag body, a growth bag fixing anchor rod, a driving net, a driving net fixing anchor rod, a supporting table sandwich plate, a water accumulation vessel, heat insulation cotton and a steel strand. The fixing anchor rods are subjected to rust-proof treatment, the active net is installed on the slope surface through the fixing anchor rods, and an L-shaped greening platform is formed. The growth bag body is composed of three growth bag units, nutrient soil is arranged in the growth bag unit, and the growth bag body is tightly attached to the rock wall in the water accumulation vessel. The heat insulation cotton wraps the growth bag body, and the fixing anchor rods and the steel strands tighten the heat insulation cotton in a Z-shaped structure. Climbing plants such as kudzu and boston ivy can be planted at the bag opening. The ecological restoration structure can be suitable for high and steep side slopes with steep slopes and bedding or cracks, the protection effect is good, the effect taking speed is high, and a new ecological restoration structure is provided for greening work of the high and steep side slopes.

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 utility model discloses an automatic stacking device for laminboards, and particularly relates to the technical field of laminboard production, the automatic stacking device comprises a base and a mounting plate fixedly connected with the outer wall of the base, and a groove is formed in the base. A connecting plate is arranged on the outer wall of the rotating column, a connecting groove is formed in the outer wall of the connecting plate, a connecting rod is arranged in the connecting groove, a sliding plate is arranged at one end of the connecting rod, an adjusting plate is arranged on the outer wall of the sliding plate, and a blocking plate is arranged on the outer wall of the adjusting plate. According to the utility model, a plurality of sandwich panels can be automatically aligned in width when being placed between the two adjusting plates, the collapse problem of the plurality of sandwich panels caused by too narrow width of the sandwich panels and too serious dislocation of the plurality of sandwich panels is prevented, and meanwhile, the equipment can be used for adjusting the width of the sandwich panels according to requirements. And the widths of various types of laminboards can be adjusted.

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.