Analysis on knowledge and technology utilization o

2022-08-22
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Analysis of knowledge and technology utilization of aluminum honeycomb panel

aluminum honeycomb panel: it is the application of aviation technology in civil architecture, vehicle and ship decoration, etc. It is the application of aerospace materials in the field of civil construction. The panel mainly adopts high-quality 3003h24 alloy aluminum plate or 5052ah14 high manganese alloy aluminum plate as the base material. The thickness of the panel is 0.8~1.5mm fluorocarbon roller coated plate or color light resistant paint. The color light resistant paint is stronger than PVDF in terms of scratch resistance, acid rain corrosion and discoloration resistance, self-cleaning. The thickness of the bottom plate is 0.6 ~ 1.0mm, and the total thickness is 25mm. The core material adopts hexagonal 3003 aluminum honeycomb core, the thickness of aluminum foil is 0.04~0.06mm, and the side length is 5~6mm. The roll forming technology is used to complete the forming of the front and back skins, and the full-automatic machine equipment is folded, and the front and back skins are tightly engaged at the installation edge. The whole processing process is completed in the modern chemical plant, and the hot pressing technology is adopted. Due to the high heat conduction value between the aluminum sheet and the honeycomb, the thermal expansion and cold contraction of the inner and outer aluminum sheets are synchronized; There are small holes on the honeycomb aluminum skin, so that the gas in the plate can flow freely; The sliding mounting buckle system will not cause structural deformation during thermal expansion and cold contraction, so it can ensure extremely high flatness Adhesive: two component polyurethane high-temperature curing adhesive, which is made of automatic honeycomb panel composite production equipment with a total foreign investment of 88 billion yuan of China's chemical industry in 2016 through high-temperature lamination under pressure, which overcomes the brittleness of the bonding layer of honeycomb panels in the past. The inner layer is a special hexagonal aluminum honeycomb, which is composed of aluminum alloy with hardness up to H19. As a core plate adhered to the sandwich structure, it bears pressure in the tangential direction. These closely spaced honeycombs, like many small I-beams, can disperse and bear the pressure from the direction of the panel, so that the force on the panel is uniform, ensuring that the panel can still maintain a high flatness in a large area. It is installed on both sides without mechanical damage. The sliding installation buckle system allows thermal expansion and cold contraction, and the anti sliding buckle at the bottom of the plate will control the expansion direction of the plate. The 25mm concealed glue sewing system is beautiful and has self-cleaning function The inner and outer plates and honeycomb structure of the box honeycomb plate after fabrication form a whole. In addition, the hollow honeycomb can greatly reduce the thermal expansion of the plate body. Because honeycomb materials have excellent properties of high wind pressure resistance, shock absorption, sound insulation, heat preservation, flame retardancy and high specific strength. Foreign countries have been used in various fields of civil use in the 1960s, and have developed rapidly. In recent years, cellular technology has been applied in various fields of civil industry in China. Aluminum honeycomb panel curtain wall has been widely used in exterior wall decoration of high-rise buildings because of its light weight, high strength, high stiffness and many other advantages. The total thickness is 15mm, and the panel bottom plate is 1.0mm thick aluminum honeycomb plate, which is only 6khg/㎡. The weight of honeycomb plate with the same stiffness is only 1/5 of that of aluminum veneer and 1/10 of that of steel plate. The interconnected aluminum honeycomb core is like countless I-beams. The core layer is distributed and fixed in the whole plate, making the plate more stable. Its wind pressure resistance performance is much higher than that of aluminum plastic plate and aluminum veneer, and it has the characteristics of not easy deformation and good flatness, even if the cell size of honeycomb plate is large. It can also achieve extremely high flatness, and is the preferred lightweight material in the construction industry at present

features: the center is aluminum hexagonal honeycomb, with small density (about 3 ~ 7kg per square meter), which is 1/5 of the weight of wood with the same thickness and area, 1/6 of glass and 1/7 of aluminum, greatly reducing the building load and cost. Because the middle interlayer contains a lot of air, it can be soundproof (the sound insulation capacity of air can reach 30dB), heat insulated (the thermal resistance can reach 0.02 (㎡ k/w)), free of combustible substances, the fire rating can reach level B1, waterproof, moisture-proof, and no harmful gas release, The specific strength of the unit mass is large, the specific stiffness is high (the structural stiffness is 1.7 times that of the rib type), and it is not easy to deform. It completely overcomes the shortcomings of other decorative panels such as deformation and middle collapse when the single area is large. It is convenient to process and apply. It can be cut and folded at will. The fluorocarbon coating on the surface can ensure the product life of more than 30 years. The surface of aluminum honeycomb panel has very high flatness and good seismic performance, which is only one eighth of the proportion of glass curtain wall; The load of 22mm thick standard part can reach more than 700 kg force when it is simply supported for 1 meter and the deflection is 10mm. After the surface is treated with fluorocarbon resin with strong corrosion resistance, it can be widely used in the decoration of curtain walls, roofs, large facade signboards and interior walls of buildings. The front aluminum plate of aluminum honeycomb panel adopts PVDF fluorocarbon baking paint that meets the quality standard of high temperature control accuracy E. C. C. A., which is divided into ordinary color and metal color. Therefore, the surface also has excellent weather resistance. Following the innovation of natural products often needs to imitate the structure and form of nature. Human inventions are inspired by nature and meet the requirements of nature. Aluminum honeycomb panel has been widely used in building exterior walls because of its light weight, high strength, high stiffness and many other advantages. It is mounted on the long right section of the fracture specimen and decorated from a scribed line adjacent to the fracture. The weight of honeycomb sandwich plate with the same stiffness is only 1/5 of aluminum plate and 1/10 of steel plate. The total thickness is 15mm, the panel is 1.0mm, and the bottom plate is 0.8mm aluminum honeycomb plate, which weighs only 6 kg/m2. The interconnected honeycomb core is like countless I-beams. The core layer is distributed and fixed in the whole plate, which is not easy to shear, making the plate more stable, more resistant to bending and compression. Its wind pressure resistance is much higher than that of aluminum plastic plate and aluminum veneer, and it is not easy to deform and has good flatness. Even if the honeycomb plate is large, it can achieve extremely high flatness. Because the honeycomb core in the honeycomb composite plate is separated into many closed chambers, It prevents the air flow and greatly blocks the heat and sound waves. Therefore, it has the effect of heat insulation, heat preservation and sound insulation. For 100 -3200hz sound source, the bath can reach 20~30db, and the thermal conductivity is 0 130w/m.k, so the energy absorption capacity of aluminum honeycomb panel is kj/m, which is an ideal energy-saving material. In case of heavy rain, the noise is particularly loud when the raindrops hit the surface of aluminum veneer or aluminum plastic plate, which is avoided by honeycomb plate. Aluminum honeycomb panels are generally made of fluorocarbon roll coated aluminum panels. The most important point of fluorocarbon roll coating aluminum plate is that continuous roll coating process is adopted. The coating of aluminum plate is completed at one time to ensure that its products have no color difference, good coating smoothness and reliable quality. At the same time, it can maintain the bright color of the outer wall of the building for a long time. After long-term exposure to the sun and rain or industrial waste gas pollution, it is obvious that the roller coated plate is cleaner and brighter than the spray coated plate, and has good adhesion and weather resistance. It is recognized as the first-class material by architects in the world

after the hardness tester is in the state of normal operation mechanism, conduct formal test on the sample:

(1) building curtain wall external wall hanging plate

(2) interior decoration engineering

(3) billboard

(4) ship building

(5) aviation manufacturing

(6) indoor partition and commodity display platform

(7) commercial transport vehicle and container vehicle body

(8) bus, train Subway and rail transit vehicles

(9) for the modern furniture industry with strict environmental protection requirements, using aluminum honeycomb panels as furniture processing materials is a good material choice in the new century. Its completely non-toxic green quality makes furniture manufacturers less unnecessary environmental protection procedures when processing furniture; In addition, raynobel aluminum honeycomb panel can be diversified, such as solid wood, aluminum panel, gypsum board, natural marble, which can be made into honeycomb panel, and the material selection is convenient

(10) aluminum honeycomb partition: the emergence of aluminum honeycomb partition breaks the traditional partition mode in the past, and has won the market share of medium and high-end office space with its noble, fresh and elegant style

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