705 results about "Aluminum honeycomb" patented technology

Disclosed are methods and apparatus for improving the resiliency and airflow through a honeycomb air vent filter while providing EMI shielding. In one embodiment, the honeycomb can be manufactured from a dielectric (e.g., plastic) substrate to provide improved resistance to deformation as compared to conventional aluminum honeycomb. The dielectric honeycomb substrate is metallized to provide EMI shielding capability. The metallized honeycomb substrate is cut slightly oversize to fit an opening in an electronic enclosure, which results in elastic deformation of resilient perimeter spring fingers that are used to hold the metallized dielectric honeycomb in place and provide electrical conductivity between the metallized dielectric substrate and the enclosure, thereby eliminating the use of a frame. In another embodiment, additional conductive layers can be added to the metallized dielectric honeycomb. In yet another embodiment, the metallized dielectric honeycomb substrate can be utilized in a framed configuration to provide improved durability.

The invention discloses a high-temperature-resistant hot melt adhesive membrane for aluminum honeycomb boards, and a preparation method thereof. The high-temperature-resistant hot melt adhesive membrane for aluminum honeycomb boards is made from, by weight percent, 30-50% of polyester elastomer with above 180 DEG C of melting point, 10-40% of polyolefin copolymer modified by maleic anhydride, 0-40% of polyolefin copolymer, 10-30% of tackifying resin, 0-15% of filler, and 1-3% of functional aid. The components add up to 100%. The high-temperature-resistant hot melt adhesive membrane for aluminum honeycomb boards has the advantages of high adhesion strength, instantaneous resistance to the temperature up to 170-190 DEG C, and long-term resistance to the temperature up to 130 DEG C.

A panel-form loudspeaker has a resonant multi-mode radiator panel which is excited at frequencies above the fundamental frequency and the coincidence frequency of the panel to provide high radiation efficiency through multi-modal motions within the panel, in contrast to the pistonic motions required of conventional loudspeakers. The radiator panel is skinned composite with a honeycomb or similar core and must be such that it has a ratio of bending stiffness to the third power of panel mass per unit area (in mks units) of at least 10 and preferably at least 100. An aluminum skinned, aluminum honeycomb cored composite can meet this more severe criterion easily.

The invention discloses a preparation method of aluminum honeycomb core materials and honey comb plates. According to the method, soft solder is used for preparing the aluminum honeycomb core materials and honey comb plates in a brazing manner. A product connector prepared by the invention can form a metallurgical structure, can be welded, and has light weight, strong strength, large rigidity, good stability, thermal and acoustical insulation and no pollution, so that the defect is overcome that a conventional adhesive type honey comb plate has an irregular honey comb core, and is greatly influenced by the property of adhesives; and the mechanical property of the honey comb plate is far higher than that of adhesive materials; moreover, the preparation process and the operation means are simpler, all performances are improved remarkably, and the preparation method is suitable for industrial production.

The invention provides a test fixture for compression shear of a symmetric sandwich structure, which belongs to the field of sandwich structure material test fixtures and aims to solve the problems of asynchronous manual indication of a deformation gauge and compression shear force value data and to-be-converted testing machine values in current standards and patents as well as poor stability and inconvenient alignment of a simple symmetric fixture. The test fixture disclosed by the invention is mainly composed of a compression shear pressure head component, a testing sample component, a connecting and locking device and a base component; the testing sample component is formed in a method that a pair of testing samples are symmetrically bonded to a sample group middle bonding board and a pair of sample sticking boards; the connecting and locking device is used for connecting the testing sample component with the base component; a locking head can be moved horizontally in a compression shear test process; the position of a base fixing sample component device of the base component can be regulated through an inner hexagon bolt; stability of the base fixing sample component device is ensured; and the testfixture is suitably used for compression shear tests of the sandwich structure materials such as honeycomb paperboards and aluminum honeycomb boards.

The invention capitalizes upon the absence of an engine compartment forward of the passenger compartment in the vehicle body and provides a frontal impact energy dissipation compartment forward of the passenger compartment. The frontal impact energy dissipation compartment is filled with an energy absorption structure, such as an aluminum honeycomb structure. Alternatively, a bulkhead member extends across the vehicle at the forward end of the passenger compartment to enhance structural integrity of the forward end of the vehicle. The bulkhead member may be integrated with air flow systems, cross-car structural support, safety airbags, slidable driver interface, speakers, etc.

An aquatic gliding board such as a surfboard is constructed using a honeycomb material for the core. The composite outer skin of the surfboard is constructed of materials having similar flexibility properties as found in a traditional foam/fiberglass surfboard. In a particularly preferred embodiment an aluminum honeycomb core is employed along with a fiberglass skin in order to achieve a surfboard with decreased weight and increased strength to resist failure in bending relative to a traditional foam/fiberglass surfboard, but having similar flexibility characteristics to such a traditional surfboard, or having increased flexibility relative to such a traditional surfboard.

A window-type structural panel has a glass outer panel bonded to a core panel consisting of an aluminum honeycomb core having outer and inner skin surfaces of resin impregnated fiberglass having substantially the same coefficient of thermal expansion as the aluminum honeycomb core. Design and color effects are imparted to the glass panel by film sheets, printing on adhesive layers, physical insertion of wire, cloth or other solid materials bonded in position by heat and pressure to form a uniform rigid structure of great strength and a light weight.

A vehicle body includes a hollow structural member having an inner surface. The hollow structural member includes a first metal or metal alloy. A structural reinforcement member is positioned in the hollow structural member and includes a stiffener including a second metal or metal alloy different from the first metal or metal alloy. A gap is provided between the stiffener and the inner surface of the structural member. An adhesive is secured to the stiffener. The adhesive is substantially dry to the touch prior to activation and is activatable to expand toward the inner surface to fill at least a portion of the gap. A frame is secured to the stiffener and is positioned between the stiffener and the inner surface of the structural member to maintain the gap prior to expansion of the adhesive. The frame is adapted to insulate the stiffener from the hollow structural member.

The invention provides a high-carrying-capacity embedded frame composite material structural slab which comprises a carbon fiber embedded frame, outer stressed skins, an aluminum honeycomb core and metal embedded parts, wherein the carbon fiber embedded frame comprises a hollow part, a frame with a U-shaped groove section and reinforcing ribs; the reinforcing ribs are connected with the frame with the U-shaped groove section; the aluminum honeycomb core is connected with the hollow part; the metal embedded parts are embedded in the U-shaped groove; and the outer stressed skins are arranged above and below the carbon fiber embedded frame respectively and are in cementation connection with the carbon fiber embedded frame. The high-carrying-capacity embedded frame composite material structural slab has the advantages of light weight and high carrying capacity; and the wide application of the structural slab provides the following benefits: the launching cost is reduced, the capability of a spacecraft for carrying high-capacity conduit heads is improved, and the perform of the spacecraft is improved.

The invention discloses a method for designing and manufacturing a ventilation channel of a honeycomb sandwich structure, and belongs to the technical field of composite materials. The method for designing and manufacturing the ventilation channel of the honeycomb sandwich structure includes the following steps of preparing a honeycomb sandwich structure mold; laying cut pre-immersed cloth on the honeycomb sandwich structure mold in an attached manner, and embedding a silicon rubber rope in a laid and attached part of a frame; carrying out vacuumized procuring on the honeycomb sandwich structure mold, and pulling the silicon rubber rope out of the frame; laying a rubber film and an aluminum honeycomb on the honeycomb sandwich structure mold; laying outer skin on the aluminum honeycomb and the frame; drilling holes in the outer skin, clearing edge gaps of the honeycomb sandwich structure mold, and carrying out vacuum packaging on the honeycomb sandwich structure mold; and carrying out heating, pressurizing and vacuumizing curing on the honeycomb sandwich structure mold, and pumping out gas in the honeycomb sandwich structure mold. By means of the method for designing and manufacturing the ventilation channel of the honeycomb sandwich structure, the gas in the honeycomb is finally and smoothly pumped out, and the structural stability is achieved.

A detector landing buffer mechanism is mainly composed of a main pillar, a multi-functional auxiliary pillar, a single-function auxiliary pillar, foot pads and the like. The multi-functional auxiliary pillar can not only buffer tensile and compressive impact loads, but also realize the functions of compression, release, deployment, and locking. There is no need to set a separate compression point when the landing buffer mechanism is assembled with the lander, which reduces the impact of the landing buffer mechanism. The interface with the landing detector is easy to install and operate. The deployment of the landing buffer mechanism is realized by the compression spring located inside the multifunctional auxiliary pillar. Even if the compression spring breaks, the deployment power will not be lost, and reliable deployment can still be guaranteed, greatly improving the reliability of deployment. In the multi-functional auxiliary pillar and the single-function auxiliary pillar, the compressive impact load is buffered through the compression deformation of the aluminum honeycomb material, and the tensile impact load is buffered through the tensile deformation of the tie rod, which not only makes the buffer more reliable, but also makes the structure simpler.

The invention relates to a modified epoxy adhesive, in particular to a modified epoxy adhesive used in composite preparation of ornamental stone materials by ultra-thin stone materials and aluminum honeycombs. A component A of the adhesive is made from 20 percent to 40 percent of epoxy resin, 5 percent to 15 percent of reactive diluent, 1 percent to 5 percent of nanometer powder material, 10 percent to 30 percent of polyurethane prepolymer and 40 percent to 60 percent of inorganic powdery filler, while a component B is made from 20 percent to 30 percent of modified amine curing agent, 1 percent to 5 percent of accelerant, 1 percent to 5 percent of organic silicon coupling agent, 5 percent to 10 percent of glass flake and 40 percent to 60 percent of inorganic powdery filler; the proportion by weight between the component A and the component B is 2.5 to 3.5: 1. The modified epoxy adhesive is applied to composition of the ultra-thin stone materials and aluminum honeycombs, the key technical indexes of which meet the national building material industry standards of ultra-thin natural stone composite boards.

The invention discloses a ceramic crystal coating for metal surfaces and a preparation method thereof. The ceramic crystal coating for metal surfaces is composed of nano-oxides or nano silicate colloids, high-temperature-resistant pigments and fillers, organic modifiers and additives, has the characteristics of high temperature resistance, no stain sticking, super weather resistance, super wear resistance, non combustion, fire prevention and high hardness, can be used on the surfaces of iron and steel or aluminum alloys required to be high-temperature-resistant and wear-resisting, and also can be applied to the coating of aluminum sheets, aluminum honeycomb panels or other metal plates for outdoor and indoor decoration.

The invention discloses an intermediate temperature self-reaction brazing method for aluminum honeycomb boards. According to the brazing method, no alloy brazing filler metal is used, gas protection or vacuum protection is not adopted, a honeycomb core strip and an aluminum alloy panel which are coated with self-reaction brazing fluxes are assembled and fixed into an aluminum honeycomb board structure through a self-manufactured clamp, then insulating is conducted for 30 min in a box type atmosphere furnace heated to 570 DEG C, brazing is carried out, and the aluminum honeycomb boards good in connection are obtained. The method has the beneficial effects that the metallurgy connection of the aluminum honeycomb boards is successfully achieved in the intermediate temperature section, the problems of base metal overburning, brazing filler metal corrosion and the like caused by the too high brazing temperature are avoided, the limitation on the aluminum honeycomb boards due to the adhesive performance is avoided, and a foundation is laid for the later wide application of the intermediate temperature aluminum honeycomb board brazing technology.

The invention discloses a nanometer ceramic building curtain wall paint which comprises a nanometer oxide, a coloring pigment, an organosilicon curing agent and an auxiliary agent. The paint is characterized by super weathering resistance, scratch resistance, fireproofness, non-inflammability and self-cleaning, etc. The products of the invention are applicable to the hull painting of an outdoor aluminum curtain wall, and an aluminum veneer and an aluminum honeycomb panel which are used for indoor decoration.

The invention provides an aluminum honeycomb sandwich plate of a high thermal conductivity carbon fiber panel pre-embedded heat pipe and a preparation method thereof. The aluminum honeycomb sandwich plate includes high thermal conductivity carbon fiber panels, room temperature cured structural adhesive layers, an aluminum honeycomb core, a foam adhesive, a heat pipe and positioning rivets. The aluminum honeycomb core is internally provided with the heat pipe, the foam adhesive is arranged around the heat pipe, and the high thermal conductivity carbon fiber panels are laid on the upper surface and lower surface of the aluminum honeycomb core respectively through the room temperature cured structural adhesive layers. The invention solves the problem of insufficient shearing resistance of bonding interface caused by thermal expansion coefficient mismatch between an aluminum alloy material heat pipe and a carbon fiber panel material. By utilizing the high rigidity, micro-deformation and high thermal conductivity properties of the material, the application range of the spacecraft carbon fiber material panel aluminum honeycomb plate is further expanded, and the problems of spacecraft on-orbit deformation and high power consumption single-machine heat dissipation are solved.

A municipal infrastructure maintenance system uses a ground vehicle to move an antenna array in back-and-forth sweeps over large areas or distances. The antenna array comprises dozens of compartmentalized radio dipole antennas arranged laterally, shoulder-to-shoulder across the width of each sweep. An antenna switch matrix is connected between the antenna array and a ground-penetrating-radar (GPR) set and provides electronic aperture switching and selection, and the ability to laterally register one sweep to the next. The antenna array is extended out in front of the ground vehicle on a pivotable boom, and the cantilevered weight is a primary concern. The antenna array is constructed with aluminum-on-aluminum honeycomb panels slotted and folded around dozens of resistive-card compartment separators. Printed circuit boards with matching baluns are also slotted to receive tabs on the resistive cards, and their dipole elements are resistive loaded to quench crosstalk and near field effects.

The invention discloses an aluminum honeycomb type evaporation plate and a processing molding method thereof. The evaporation plate adopts a high strength aluminum alloy plate and consists of an upper plate, a lower plate, an inlet pipe and an outlet pipe, wherein the two high strength aluminum alloy plates are overlapped and welded together by a solid-phase stir friction connecting method; the inlet pipe and the outlet pipe are inserted in the upper end and the lower end between the two high strength aluminum alloy plates and are connected with the high strength aluminum alloy evaporation plate body by using an electric arc welding method; and then the evaporation plate is finally molded through a mould and high-pressure bulging technology.

The invention provides a built-in extension-type landing buffering mechanism which comprises a first stage piston cylinder, a second stage piston cylinder, a third stage piston cylinder and a fourth stage piston cylinder. An air cavity connected with the top of the first stage piston cylinder is formed in the first stage piston cylinder, an oil cavity is formed in the lower end of the air cavity, and an overflow valve is arranged between the air cavity and the oil cavity. An opening is formed in the upper end of the second stage piston cylinder, the second stage piston cylinder is arranged in the first stage piston cylinder, the lower end of the second stage piston cylinder is connected to a buffering component, and a first buffering material is arranged in the second stage piston cylinder. The first stage piston cylinder and the second stage piston cylinder are located in the third stage piston cylinder, and can move up and down and be locked inside the third stage piston cylinder. The fourth stage piston cylinder is connected to the top of the third stage piston cylinder, a push rod is arranged in the fourth stage piston cylinder, and the lower end of the push rod is arranged on the bottom of the inner portion of the air cavity. According to the built-in extension-type landing buffering mechanism, an oil-air buffering mode is adopted, quite high impact energy can be absorbed, the built-in extension-type landing buffering mechanism can be matched with aluminum honeycomb crushing energy absorption at the same time, and the buffering effect is more efficient. In addition, the built-in extension-type landing buffering mechanism further has the function of unfolding and locking, and can be used repeatedly.

The invention discloses a formaldehyde-removing and air-purifying filter core based on an inclined-hole aluminum honeycomb plate. The formaldehyde-removing and air-purifying filter core based on the inclined-hole aluminum honeycomb plate comprises a formaldehyde-removing coating and an aluminum honeycomb plate. The aluminum honeycomb plate is a plate-like body consisting of hexagonal pore passages; and an included angle between each of the hexagonal pore passages and a vertical direction of the front side of the plate-like body is 5-20 degrees. The formaldehyde-removing coating is prepared by coating, drying and solidifying a formaldehyde-removing dope onto inner surfaces of the hexagonal pore passages. The formaldehyde-removing dope is a mixture. Ingredients of the mixture comprise active carbon, calcium peroxide, calcium oxide, manganese dioxide, potassium carbonate, and an adhesive. The invention further discloses a preparation method of the formaldehyde-removing and air-purifying filter core based on the inclined-hole aluminum honeycomb plate. The provided formaldehyde-removing and air-purifying filter core based on the inclined-hole aluminum honeycomb plate is able to achieve a formaldehyde-removing rate of up to 93% within 2.5 minutes, and a formaldehyde-removing rate in the air of up to 100% within 10 minutes. Comparing to grained formaldehyde-removing fillers, the windage resistance is reduced by 98%. The formaldehyde-removing and air-purifying filter core based on the inclined-hole aluminum honeycomb plate is characterized in a high formaldehyde-removing efficiency, a high-temperature resistance, a low air resistance, anti-corrosion property, a long service life, and the like.

The invention discloses a washing tower. The main body of the washing tower is a hollow cavity and is provided with an air inlet and an air outlet, wherein a filler filtering layer, a spraying group, a defogging layer and a plate frame filtering structure are successively arranged between the air inlet and the air outlet; the plate frame filtering structure is the composite structure of an aluminum honeycomb filter screen, an activated carbon filter screen and a flow guidance and atomization layer; the aluminum honeycomb filter screen is provided with flow guidance holes evenly arranged by facing to the activated carbon filter screen; a surface is coated with ozone contact agent; the flow guidance and atomization layer is arranged between the activated carbon filter screen and an air outlet and has the function of flow guidance and automation; airflow formed by the flow guidance layer is collected in the fixed direction and is connected with a deodorant box; and the deodorant box is provided with an atomization controller driving to supply material to a feed pipe. On the premise of inheriting the structure and the function of the traditional washing tower, airflow in the washing tower can be reasonably rectified by simple structural improvement; and in addition, peculiar smell is removed before discharging, thereby alleviating the problem of pollution on atmospheric environment smell by waste gas processed and purified by the washing tower. The washing tower has simple structure and is convenient to operate.