82 results about "Balsa wood" patented technology

The invention relates to a method for preparing a high-performance plate by using an ex-service wind power blade, the high-performance plate and application of the high-performance plate, and the method comprises the following steps: separating the ex-service wind power blade into fiber strips, reinforcing ribs, glass fiber reinforced plastic crushed materials, blade powder and balsa wood-PVC powder, and respectively treating the materials to prepare each component of the multi-effect high-performance plate; and finally, all the components are subjected to compression molding treatment to be manufactured into the multifunctional high-performance plate, all the components of the retired wind power blade can be recycled, and then the disposal problem of the retired wind power blade can be solved. And moreover, the glass fiber filaments obtained by degrading the retired wind turbine blade and the thermosetting resin form the reinforced panel, so that the strength of the multifunctional high-performance plate can be improved while the stability of the overall structure of the reinforced panel is ensured. In addition, compression molding treatment is performed by fully utilizing the characteristics of different parts, so that the illumination resistance of the board can be improved, the board is not easy to deform due to water absorption, and the applicability of the board can be further improved.

The invention discloses a method for increasing the phenol yield through catalytic pyrolysis of a decommissioned fan blade, and relates to the technical field of waste composite material resourceful treatment.The method comprises the steps that decommissioned fan blade fragment materials obtained after crushing and magnetic separation are subjected to multispectral imaging, multispectral data are obtained, and pretreatment is conducted; performing spectral feature extraction on the preprocessed multispectral data by using a convolutional neural network; identifying and separating the fragment materials based on spectral characteristics and automatic separation equipment; carrying out activation and carbonization treatment on the separated balsa wood fragments to prepare a carbon-based catalyst; carrying out catalytic pyrolysis on the separated fragment material by utilizing an automatic adjusting reactor and a carbon-based catalyst; collecting a product generated by catalytic pyrolysis, and carrying out qualitative and quantitative analysis on phenols to obtain a qualitative analysis result and a quantitative analysis result. According to the method, through a mode of combining multispectral imaging and the convolutional neural network, different types of composite materials are accurately identified and classified.

The invention discloses porous activated carbon prepared from a balsa wood material and a preparation method and application of the porous activated carbon, the pore diameter of the porous activated carbon ranges from 0.4 nm to 400 nm, the pore volume ratio of micropores with the pore diameter being 0.4 nm to 2 nm, mesopores with the pore diameter being 2 nm to 50 nm and macropores with the pore diameter being 50 nm to 400 nm is larger than 30%, and the specific surface area of the porous activated carbon is 500 m / g to 700 m / g; the carbon tetrachloride adsorption rate is 130%-145%, and the adsorbent has excellent adsorption performance.

The invention discloses a preparation method of a wood-based carbon material for improving the performance of a supercapacitor, and the method comprises the steps: cutting Balsa wood into wood chips, and immersing the wood chips into absolute ethyl alcohol to obtain a natural wood chip sample; lignin is removed, and delignification wood chips are obtained; dissolving cellulose through a high-concentration zinc chloride solution, and separating out regenerated cellulose to obtain a wood sample RC (at) ZnODWx with regenerated cellulose and ZnO growing on the surface; placing the regenerated cellulose wood chips in a tubular furnace to obtain a wood-based graded porous carbon product, obtaining a carbon sample named CRCDWx, and cutting; a wood-based hierarchical porous carbon electrode is used as a positive electrode, a zinc foil is used as a negative electrode, organic gel is used as an electrolyte and a diaphragm, and the CRCDW-based zinc ion hybrid supercapacitor is prepared with a metal shell. The wood-based hierarchical porous carbon material capable of improving the performance of the supercapacitor is prepared, the cost is low, the material has reproducibility, dependence on a traditional electrode material is reduced, environmental pollution is reduced, and a prospect is provided for high-value conversion of wood raw materials and application of the wood raw materials to the high-performance supercapacitor.

The invention relates to the technical field of sandwich composite materials, and discloses a web-reinforced sandwich composite structure prepared by using a thermal expansion compression molding process and a method of the web-reinforced sandwich composite structure. Firstly, a light core (hard foam, balsa wood, honeycombs and the like) is cut into a required shape, an expandable foam prepreg film is cut according to a designed web structure, the interior and exterior of the web structure and the outer contour of the whole product are coated with expandable foam glue, then composite prepreg is laid on the product according to design requirements, and the composite prepreg is formed. And the web plate reinforced sandwich composite material structure is formed by utilizing internal expansion force generated by limited foaming in a thermal expansion foam pre-impregnated glue film mold. The maximum expansion force of the thermal expansion compression molding process can be maintained after the epoxy resin gel point, so that the performance of the web reinforced sandwich composite material is fully ensured, and the structural performance of the prepared web is enhanced.

The invention discloses a method and a device for measuring the proportional oxygen concentration of a wood-based composite oxygen sensing material, and relates to the field of oxygen measurement. The technical problems that how to utilize wood to be compounded with metalloporphyrin, overcome the influence of excitation light source power on a test result and improve the anti-interference capability and stability of a sensor and the oxygen concentration test range in the prior art are solved. According to the invention, balsa wood is taken as a wood-based material, and metalloporphyrin Gd-HMME is embedded into the balsa wood, so that under the excitation of an ultraviolet laser, the ratio of a fluorescence signal to a phosphorescence signal of the wood-based composite material is taken as an optical parameter, and the oxygen concentration test is realized. The method is also suitable for the field of sensor preparation.

The invention relates to a preparation method of a reinforced PET material for a wind power blade, which comprises the following steps of: punching through holes and grooves in an integrally formed PET sandwich plate serving as a base material, inserting glass fiber yarns into the through holes, inserting glass fiber reinforced plastic sheets into the grooves, paving glass fiber fabrics on the upper and lower surfaces of the sandwich plate, and then performing vacuum glue pouring and curing, thereby obtaining the reinforced PET material for the wind power blade. And a reinforced PET material with a vertical glass fiber reinforced plastic column body, a glass fiber reinforced plastic fence and a glass fiber reinforced plastic large surface is formed. The PET core plate is used as a base body, the glass fiber reinforced plastic fence is used as a framework, the vertical glass fiber reinforced plastic columns play a stabilizing role, and the tensile resistance, compression resistance and shear resistance of the material are greatly improved through a composite material component with large glass fiber reinforced plastic faces on the upper portion and the lower portion, so that the composite material can completely replace Balsa wood to serve as a blade reinforcing material; therefore, a series of problems of unstable Balsa wood supply, large price fluctuation, difficult transportation, long growth cycle, uneven quality and the like can be solved, the leaf production quality can be guaranteed, the purchase cost can be reduced, and cost reduction and efficiency improvement are realized.

The invention discloses an ultralow-temperature crushing process for an out-of-service wind power blade, and relates to the technical field of green environmental protection, and the ultralow-temperature crushing process is characterized by comprising the following steps: step 1, taking the out-of-service wind power blade, cutting the out-of-service wind power blade to form a small-size wind power blade plate, and cleaning stains on the surface of the wind power blade plate for later use; 2, the wind power blade plate is placed in the long-strip-shaped cavity, the long-strip-shaped cavity is filled with clear water, firstly, heating is conducted to 50-100 DEG C, heat preservation is conducted for 2-5 min, then after the temperature is reduced to the room temperature, the long-strip-shaped cavity is frozen to-12 DEG C or below, and long-strip-shaped ice bars are obtained; 3, the temperature is controlled to be-150 DEG C or below, an ultrasonic vibrator acts on the long-strip-shaped cavity, and a pre-crushed blade plate is obtained after crushing treatment; 4, the temperature is controlled to be below-150 DEG C, the pre-crushed blade plate is guided into a wind power blade shredding machine to be crushed, and particulate matter is obtained; and 5, classifying the particles to form glass fiber particles, resin particles and balsa wood particles. The wind power blade recycling device has the effects of reducing the wind power blade recycling difficulty and improving the economical efficiency.

The utility model relates to a battery pack bottom protection plate and a vehicle. The battery pack bottom protection plate comprises a first fiber fabric layer, a balsa wood plate, a metal plate and a second fiber fabric layer which are arranged in sequence, and the first fiber fabric layer, the balsa wood plate, the metal plate and the second fiber fabric layer are arranged in parallel; the first fiber fabric layer, the balsa wood plate, the metal plate and the second fiber fabric layer are of an integrated structure, and the first fiber fabric layer is located on the side, facing a battery pack, of the bottom protection plate. The battery pack bottom protection plate has the advantages of being light in weight, good in mechanical performance, high in strength, low in cost and capable of improving the impact protection capacity of the bottom of a battery pack and reducing the weight of a vehicle, and therefore the power consumption of vehicle running is reduced.

The invention relates to an agrobacterium tumefaciens-mediated cork tree genetic transformation method. The method comprises the following steps: preparing an infection solution from an agrobacterium solution; the method comprises the following steps: taking in-vitro cotyledons or stems as explants after cork tree seeds germinate into seedlings, infecting the cotyledons or stems of the cork tree by adopting an infection solution, and carrying out co-culture, recovery culture and screening culture after infection is completed, so as to obtain transgenic hairy roots or transgenic calluses. According to the scheme provided by the invention, stable transformation of balsa roots can be realized, verification of functional genes is realized, the functional genes exist in a living body form for a long time, and the genetic transformation efficiency of balsa is improved.

The invention relates to a biomass derived porous carbon material and a preparation method thereof, a negative electrode plate and a lithium ion battery. The preparation method of the biomass derived porous carbon material comprises the following steps: crushing balsa wood, screening, and collecting powder; carrying out pre-carbonization treatment on the powder to prepare a pre-carbonized material; mixing the pre-carbonized material with potassium hydroxide, and carrying out etching treatment to prepare an etched material; carrying out carbonization treatment on the etched material to prepare a porous carbonized material; and carrying out microwave post-treatment on the porous carbonized material to prepare the biomass derived porous carbon material. According to the preparation method, the prepared biomass derived porous carbon material has relatively high specific surface area, relatively high pore volume, concentrated pore size distribution and relatively high conductivity.

The present invention relates to the technical field of solid waste treatment. Disclosed is a dual-effect application method for a waste wind turbine blade as a bituminous road material. The method comprises the following steps: (1) removing the balsa wood and the core material of a waste wind turbine blade to obtain a recovered wind turbine blade; and (2) pulverizing and sieving the recovered wind turbine blade, using sieved wind turbine blade powder having a particle size of less than or equal to 0.3 mm as an asphalt modifier, and using sieved wind turbine blade particles having a particle size of greater than 0.3 mm and less than or equal to 2.36 mm as a blade aggregate to prepare a bituminous mixture. The method can effectively solve the problems of large accumulation amount, low recovery efficiency, difficulty in value-added application and the like of existing decommissioned wind turbine blades.

The invention discloses a balsa wood mechanical arm grabbing clamp and method, and relates to the technical field of mechanical equipment.The balsa wood mechanical arm grabbing clamp comprises a lower mounting frame, an even number of lower electric control sliding blocks are movably arranged on the lower mounting frame, each lower electric control sliding block is provided with a mounting block and a positioning frame, and racks are horizontally and movably inserted in the mounting blocks; an electric roller mechanism is rotationally arranged on the positioning frame and comprises a gear and tires arranged at the two ends of the gear, the gear is meshed with the rack, the tires do not make contact with the rack, are suspended and are externally connected with an inflation and deflation device, when the tires are inflated, the outer diameter of the tires is larger than that of the gear, and the tires and the gear form a dumbbell-shaped structure; the rack is driven to stretch out or retract in the horizontal transverse direction. According to the balsa wood grabbing and transferring device, nondestructive grabbing and stable transferring of balsa wood can be achieved, so that the actual requirements in industrial production and logistics transportation are met, and the product quality and the market competitiveness are improved.

The utility model discloses a balsa wood core material defect visual identification auxiliary device. The balsa wood core material defect visual identification auxiliary device comprises a core material conveying assembly, an image acquisition assembly, a reciprocating motion assembly and a purging assembly, a reciprocating motion assembly is arranged above the core material conveying assembly; the moving direction of the reciprocating moving assembly is perpendicular to the conveying direction of the core material conveying assembly. The image acquisition assembly is fixedly mounted on the transverse moving plate; and the purging assembly is arranged on the transverse moving plate. According to the utility model, the detection efficiency and the detection accuracy are improved.

The invention provides a method for degrading a retired wind power blade material by using a composite solvent, and belongs to the technical field of solid waste recycling. The method comprises the following steps: physically crushing the retired wind power blade to obtain a sample; mixing the sample with an organic solvent and an ionic liquid for reaction; the ionic liquid is imidazole salt ionic liquid or pyridine salt ionic liquid. According to the method disclosed by the invention, the retired wind power blade material is degraded by adopting the ionic liquid-organic solvent, so that oligomer or micromolecular monomer substances which are easy to separate are generated, and different components are effectively separated. After the reaction is finished, a glass fiber, balsa wood and rigid foam mixed material can be recovered and obtained, the mixed material can be used as a filler, a thermosetting resin degradation product can be converted into a useful chemical product and has high utilization value, and a catalyst is easy to recycle and reuse.

The invention belongs to the technical field of wind power blade dehumidification, and discloses a wind power blade balsa wood vacuum drying device and method.The wind power blade balsa wood vacuum drying device comprises a drying room, a vacuum bag, an air heater, a one-way valve and a vacuum pump, and the vacuum bag is arranged in the drying room and is configured to wrap balsa wood in a sealed mode; the air heater is arranged in the drying room and used for providing hot air into the vacuum bag; one end of the one-way valve is connected with the air heater, and the other end of the one-way valve is hermetically connected with the vacuum bag; the vacuum pump is arranged outside the drying room, connected with the end, away from the one-way valve, of the vacuum bag in a sealed mode and used for exhausting air in the vacuum bag so that a negative pressure state can be formed in the vacuum bag and exhausting air in the vacuum bag. The drying efficiency of water vapor in the balsa wood can be improved, the phenomenon that balsa wood is white due to air filaments is reduced, the processing cost is reduced, and energy consumption is reduced.

The invention relates to a modification method and application of cork wood charcoal. According to the biochar preparation method provided by the invention, cork wood biochar is prepared through anaerobic dry distillation, and relatively stable biochar is obtained by controlling the carbonization degree. Different phosphates are adopted to modify the balsa wood biochar, and the modified biochar suitable for balsa wood planting is found by comparing the modification effects and effects of different phosphates. In combination with a mode of hole application of the biochar, the utilization efficiency of the biochar can be remarkably improved, and the cost is saved.

The present application relates to a method for a resourceful treatment of waste carbon fiber wind turbine blades. The method comprises the following steps: (1) separating balsa wood from waste carbon fiber wind turbine blades, then pyrolyzing same, and modifying same with an alkali liquor, so as to obtain a pyrolyzed balsa wood catalyst; and (2) subjecting the waste carbon fiber wind turbine blades from which the balsa wood is separated and the pyrolyzed balsa wood catalyst obtained in step (1) to a microwave co-pyrolysis treatment, so as to obtain pyrolysis gas, pyrolytic oil and pyrolytic carbon. In the present application, by subjecting the tar generated during the process of microwave co-pyrolysis to in-situ catalytic cracking, the subsequent coking problem of a pyrolysis device is ameliorated; and compared with conventional pyrolysis conditions, the energy consumption of pyrolysis is reduced, and the content of pyrolytic oil is reduced, which are conducive to the rapid implementation of resource recycling during the subsequent treatment process of the waste carbon fiber wind turbine blades.

The invention relates to the technical field of wood processing, in particular to auxiliary positioning equipment for automatic punching of balsa wood boards. The auxiliary positioning equipment for automatic punching of the Basa wood board comprises a supporting seat, and a rotary indicating rotating seat is arranged at the top of the supporting seat; the top of the rotating seat is provided with the adjusting mechanism used for quickly adjusting the placing angle of the Basa wood plate; and the positioning mechanism for aligning and positioning the punching position of the balsa wood plate is arranged on one side of the supporting seat. According to the device, the device controls an extrusion block to be in butt joint with a shallow groove of a balsa wood plate, the position of the balsa wood plate is determined by detecting the position of the extrusion block in a limiting shell, then the height of a threaded rod relative to a rotating seat is controlled through a motor and a rotating pipe, and the effect of controlling the rotating and swinging angle of a supporting table is achieved; in this way, the positions of the balsa wood boards in different shapes can be conveniently adjusted and controlled, and the purpose of auxiliary positioning is achieved.

The present invention discloses an adjustable frame structure for a balsa wood pole-type yurt. The present invention relates to the technical field of yurt frames, and the following scheme is proposed, which includes a yurt frame mechanism, wherein a frame support column mechanism is provided inside the yurt frame mechanism; wherein the yurt frame mechanism includes an annular base fixed to the ground, a circle of Khana walls fixedly connected to the upper surface of the annular base, and a circle of Uni rafters erected on the end surface of the Khana walls. The technical solution of the present invention sets three columns inside the yurt frame, and sets column pulling anti-dumping components between the columns. By interconnecting the pottery brain, the columns, and the column pulling anti-dumping components to form a three-dimensional triangle, a stable pulling effect is achieved on the frame to resist lateral wind force. Moreover, by setting a traction mechanism on the upper surface of the Uni rafter to pull the top felt, the top felt can be controlled to open and close to different degrees inside the yurt.

The invention discloses a gravity-driven self-cleaning solar water-electricity co-production interface evaporation device which comprises an evaporation unit and a mechanical supporting unit. The mechanical supporting unit comprises a base and a rotating shaft, the central area in the length direction of the evaporation unit is connected to the rotating shaft, the hydrophobic photo-thermal surface faces upwards, and the single side of the evaporation unit is immersed in a solution; the evaporation unit is a delignification balsa wood sheet, one side of the evaporation unit is provided with a hydrophobic photo-thermal surface, the hydrophobic photo-thermal surface is obtained by mixing and spraying a carbon nanotube (CNT), polydimethylsiloxane (PDMS), 1H, 1H, 2H, 2H-perfluorooctyltrichlorosilane and n-hexane, and the two ends of the hydrophobic photo-thermal surface are provided with copper nets. The core of the invention lies in the unique seesaw type self-cleaning structure and the integrated photovoltaic power generation module. Under continuous solar driving, the SWE-SIE can automatically turn over to be immersed into saline water to be dissolved when the evaporation surface reaches a supersaturated state through periodic dynamic inclination, so that attenuation of evaporation performance caused by salt scaling is effectively inhibited, and long-term stable operation of a device is ensured. And meanwhile, synchronous water photovoltaic power generation is realized by virtue of a fluid pump effect formed by evaporation.

The invention discloses a preparation method and application of a composite catalyst based on mesoporous high-entropy alloy PtPdRhRuCu / cork wood derived carbon, and relates to a preparation method and application of a composite catalyst. The invention aims to solve the problem that during preparation of the Pt-based mesoporous high-entropy alloy, due to coexistence of various metal precursors, significant difference exists in reduction kinetics, so that nucleation and crystal growth processes are difficult to cooperatively control. According to the invention, five metal elements of Pt, Pd, Rh, Ru and Cu are ingeniously combined to form the high-entropy alloy, and the synergistic enhanced cocktail effect is generated by utilizing the unique functions (such as the high activity of Pt and Pd, the strong regulation ability of Rh and Ru on oxygen-containing species, and the Cost-down effect and electronic regulation of Cu) of each element; meanwhile, the composite material is compounded with mesoporous carbon, so that a stable conductive network and a reaction interface are constructed. The invention belongs to the technical field of electrocatalysts.

The invention relates to a seed delinting machine for improved balsa seed breeding, and belongs to the technical field of balsa seed delinting separation. The balsa seed delinting device mainly comprises a delinting device and a winnowing device, a feeding port of the winnowing device is in butt joint with a discharging port of the delinting device, balsa seeds with fibers are conveyed into the delinting device, the balsa seeds with the fibers are heated and dried through hot air to be fluffy, then the balsa seeds are turned and scattered through a delinting roller, and the purpose that the fibers and the seeds are separated is achieved. The delinting rate and the working efficiency are effectively improved, winnowing is carried out through the winnowing device, heavy seeds are screened out of screen holes under the action of the gravity of the seeds, light fibers are taken out through winnowing air, and separation of the seeds and the fibers is achieved; large extrusion force on the seeds is avoided, the phenomenon that the balsa seeds are broken is avoided, and the germination rate of the balsa seeds is guaranteed; the collected cork seeds and fibers can be utilized, and seed damage and resource waste caused by combustion delinting and acid delinting are avoided.

The application discloses a method for preparing a sodium-ion battery hard carbon negative material from recycled balsa wood and belongs to the technical field of sodium-ion batteries. The specific steps comprise the following steps: disassembling and crushing waste fan blades to obtain balsa wood powder; treating the balsa wood powder with an alkali solution to obtain a modified primary product; mixing the modified primary product with a soluble auxiliary carbon source and performing hydrothermal reaction to obtain a hydrothermal composite precursor; and performing high-temperature carbonization of the hydrothermal composite precursor in an inert atmosphere to obtain a sodium-ion battery hard carbon negative material. The core process of "alkali solution pre-modification + hydrothermal composite with a soluble auxiliary carbon source" effectively overcomes the problems of weak interface combination and pore disorder caused by the different pyrolysis shrinkage behaviors of the two precursors. The prepared hard carbon negative electrode inherits the mesoporous framework of balsa wood and the closed pore introduction filled with sucrose carbon, has low specific surface area, high initial coulombic efficiency, high specific capacity, high rate performance and excellent cycle stability, and realizes high-value utilization of waste wind turbine blades.

This invention discloses a porous activated carbon prepared using balsa wood material, its preparation method, and its application. The porous activated carbon has a pore diameter of 0.4 nm to 400 nm, and the pore volume ratio of micropores (0.4 nm to 2 nm), mesopores (2 nm to 50 nm), and macropores (50 nm to 400 nm) is greater than 30%. The specific surface area of ​​the porous activated carbon is 500 to 700 m² / g. It has an adsorption rate of 130% to 145% for carbon tetrachloride, exhibiting excellent adsorption performance.

The present invention discloses a method for preparing an extruded profile containing waste fan blade crushed materials, comprising the following steps: step S1, crushing the waste fan blades into small pieces; step S2, adding the small pieces of crushed materials into a grinding machine for grinding; step S3, using a wind selection device to screen thermoplastic foam, balsa wood, and resin / glass fiber; step S4, adding fixed components into a continuous double-rotor internal mixer for extrusion granulation; step S5, using an extruder to extrude and mold the particles. The present invention improves the grinding process design and granulation composite formula, utilizes the density difference between different components, roughly separates the components in the blade crushed materials, and then processes and granulates them according to the formula ratio, and then extrudes the profile. The obtained pultruded profile containing waste fan blade crushed materials has higher mechanical properties and better cost advantages than traditional wood-plastic composite profiles, and can effectively solve the treatment of wind turbine blades.

The application discloses a kind of barashamu splicing fixed-width cutting methods, it is related to timber processing technical field, including using laser line marker to mark the splicing end of board;According to laser marking line, the position and angle of splicing board are adjusted;Board is spliced together;Again using laser line marker marks the outer contour line of splicing qualified board;Spliced board is placed in outer contour line;Image acquisition device is used to photograph board after splicing, and the image obtained is input into image processing and analysis system;With the help of image processing and analysis system, the uniformity of board splicing joint and the shielding condition of outer contour line are checked and analyzed;Take the board that passes inspection and analysis, and place it on the clamp of cutting mechanism.The method introduces advanced technologies such as laser marking, image processing and analysis, realizes accurate control and automatic inspection of the splicing and cutting process, greatly improves the quality and production efficiency of product.

The invention relates to a balsa wood core material square splicing density optimization method based on an intelligent algorithm, which comprises the following steps: S1, automatic detection and sorting: obtaining the weight and size of each balsa wood batten through a weighing and volume measuring device on an assembly line, and automatically removing battens with unqualified density; s2, squaring scheme optimization: inputting the density value rho i of each qualified batten in the step S1 into a trained squaring optimization algorithm model, and outputting an optimal batten arrangement matrix P; and S3, squaring execution is conducted, specifically, a squaring device is controlled to conduct automatic squaring operation according to the arrangement matrix P, and balsa wood core material blanks with the uniform density are formed. The method has the advantages that through automatic accurate detection and sorting, the possibility that battens with unqualified density flow into a production link is eradicated, the overall density homogenization of the spliced cubes can be realized through an intelligent algorithm, and the quality consistency and reliability of composite material products are improved.

A balsa wood repair method, comprising: providing a hole (4) in a damaged portion (2); using an upper repair plug (5) and a lower repair plug (6); injecting an adhesive (7) into an accommodating recess (601) of the lower repair plug, and then plugging the repair plugs in the hole, so as to make the adhesive be evenly distributed and fill a gap; and after the glue solidifies, sawing off redundant parts of the repair plugs and performing sanding, so as to complete the repair of balsa wood. The repair method eliminates an adhesive application step, thereby simplifying a repair process, improving the distribution uniformity and utilization rate of the adhesive, preventing the adhesive from contaminating the outer surface of the balsa wood, and enhancing the stability and durability of repairs.

The utility model relates to the technical field of launch canisters, in particular to a pressure-resistant structure of a square launch canister. According to the technical scheme, the pipe comprises a pipe body, the pipe body comprises a winding inner shell and a winding outer shell, the winding inner shell is sleeved with the winding outer shell, and prefabricated reinforcing corner fittings are arranged between the four corners of the winding inner shell and the winding outer shell. Through the prefabricated reinforcing corner fittings, the upper and lower side balsa wood sandwich and the left and right side balsa wood sandwich and winding inner shell mounting and connecting structures, the defect that the tension of the straight edge of the square winding pipeline is insufficient is overcome, the structural rigidity of the pipe body in the internal pressure bearing state is improved, and the purpose of controlling deformation of the rectangular pipe body is achieved; by means of an inverted pulling structure of the rear metal connector and the advantage of high tension of winding forming, the connecting strength of the rear metal connector and the pipe body is improved, and the technical requirement for resisting instant high impact force when the pipe body is used is met; by prefabricating the reinforcing corner fittings, the rigidity of four corner areas of the pipeline is improved, and the purpose of controlling deformation of the pipe body is achieved.