40 results about "Cellular material" patented technology

The invention belongs to the technical field of composite materials, and relates to foaming wave-absorbing slurry, a foam filling honeycomb material and a preparation method thereof. A specific wave-absorbing foaming slurry is filled into a wave-absorbing honeycomb core to prepare a target foam-filled honeycomb material, and a physical foaming method is adopted, so that the improvement of broadband wave-absorbing performance and effective bearing can be realized, and the characteristic of light weight can be exerted; by filling the wave-absorbing foam into the wave-absorbing honeycomb core and using the microspheres expanded by heating as the foaming medium, compared with a chemical foaming method, the foaming process does not involve chemical reaction, so that the generation of harmful gas is completely avoided, the precipitation of chemical foaming agent residues in the product is avoided, and the service life of the product is prolonged. Therefore, the dual problems of environmental pollution and product pollution caused by chemical foaming are solved.

The application discloses a kind of X waveband wave-absorbing honeycomb composite layer structures based on graphene derivative, composite material and preparation method and application thereof, method steps include: honeycomb material processing: cutting and washing to honeycomb material;Configuration wave-absorbing slurry: configuration graphene derivative wave-absorbing slurry, and stirring and sanding are carried out;Two times of impregnation: aramid paper honeycomb sheet is impregnated into graphene derivative wave-absorbing slurry, then drying is carried out, and two times of impregnation are carried out;Surface bonding treatment: glass fibre and / or epoxy resin skin are bonded on the upper surface of honeycomb sheet, and conductive carbon fibre and / or epoxy resin skin are bonded on the lower surface of honeycomb sheet.The application can realize the strong absorption (RL<-15dB) characteristics of X waveband electromagnetic wave under thin thickness (8mm), and the material has good structural strength and environmental adaptability, and the preparation method is simple, the cost is moderate, and is suitable for large-scale industrial production.

This utility model discloses a vacuum clamping device for honeycomb materials, relating to the field of honeycomb material processing technology. It includes a base and a baffle. The base has an internal pore cleaning mechanism, which includes a cylinder. A lifting plate is located at the top of the cylinder. This utility model, through the pore cleaning mechanism, can clean impurities stuck in the pores of a square-hole plate. During use, the cylinder is activated to insert a top block into the corresponding pore, pushing out the impurities. Then, a fan is activated to blow away the impurities. This avoids the situation where some pores in the square-hole plate are blocked by impurities due to difficulty in cleaning them, resulting in uneven force during clamping and a poor clamping effect. It also avoids the difficulty of manual cleaning due to the small pore diameter, thus ensuring the working effect of the vacuum clamping device.

A system for extracting and analysing cellular material, the system comprising an integrated lab-on-a-chip (LOC) 1 and an instrument 2. The instrument comprises an interface or recess 4 for holding th

Disclosed herein, inter alia, are devices and methods for efficient transfer and analyses of cellular material, tissue samples, such as tissue sections.

The present invention is a camper configured to fit in the bed of a truck. The camper is made with an external frame comprised of L-shaped angled metal members which provide structural support and help seal the joints between sections of the camper walls. The camper walls are comprised of honeycomb material which function as both walls and insulation. The novel combination of these materials allows for the functions of many elements to be achieved by only two components.

The invention relates to the field of milling, in particular to a composite holding base material and a preparation method and application thereof. According to the invention, low-freezing-point agar and gelatin hydrogel with a mass ratio of 9: 1-1: 1 are used as a composite immobilization base material for the first time to be applied to the field of milling, so that stable immobilization and convenient disassembly of the honeycomb material are realized; the problems of high cutter cost, harsh parameters, unreasonable holding mode and poor process universality in the milling of the existing 3D printing honeycomb composite material are solved, the industrial pain points of difficult disassembly, easy workpiece damage and residual influence on performance in the traditional holding mode are solved, and powerful support is provided for diversified application of the 3D printing honeycomb composite material; and the method has wide industrial popularization value.

According to the composite component, the vehicle body frame and the vehicle, the composite component comprises a first component body, a second component body and a third component body which are sequentially arranged in a stacked mode from outside to inside, the first component body, the second component body and the third component body are independently arranged, and the second component body is connected with the first component body and the third component body; wherein the first component, the second component and the third component are all configured to be made of honeycomb materials, the density of the first component is set to be rho1, the yield strength of the first component is set to be Rp1, the density of the second component is set to be rho2, the yield strength of the second component is set to be Rp2, the density of the third component is set to be rho3, the yield strength of the third component is set to be Rp3, rho1, rho2 and rho3 meet rho1 < rho2 < rho3, and Rp1, Rp2 and Rp3 meet Rp1 < Rp2 < Rp3. In this way, differentiation and self-adaptive protection of low-speed, medium-speed and high-speed full-scene collision are achieved, overall light weight can be achieved due to the adoption of the variable design, and therefore the design requirement for light weight of the vehicle body frame is met while safety is guaranteed.

An apparatus for the production of iron through reduction of iron ore by an electrolysis reaction, the electrolysis reaction emitting a gas, the apparatus including a casing including a gas-permeable anode plate being made of a cellular material, a cathode plate, both facing each other and being separated by an electrolyte chamber, the gas-permeable anode plate being made of a cellular material including a plurality of cells, each cell being delimited by a circumferential wall and being open on the two opposite sides of the gas-permeable anode plate, the circumferential wall being made from a plurality of metallic sheets which are interlocked together with interlocking means.

The utility model relates to the technical field of boards, in particular to a composite board, which comprises a buffer layer, a heat insulation layer and a heat insulation layer. The modified layers are arranged on the two sides of the buffer layer, and each modified layer comprises a fiber reinforced material layer. The composite board has the advantage of light weight and certain mechanical properties, and has the benefit of reducing cost; compared with a traditional aluminum alloy material, the light weight degree of the composite board can be larger than 92%, and compared with a traditional glass fiber injection molding fiber, the light weight degree of the composite board can be larger than 85%.

This method provides a more efficient way to produce extracellular vesicles from minimal cellular material, including not only individual cells in suspension but also cells in a three-dimensional structure. [Solution] The present invention provides a method for producing extracellular vesicles from producing cells, comprising: a) placing producing cells in a liquid culture medium in a container having a baffle structure inside; b) rotating the container, thereby generating extracellular vesicles from the producing cells; and c) collecting the generated extracellular vesicles, wherein step b) of rotating the container includes a sub-step of repeatedly changing the rotational motion of the container.

The invention belongs to the field of power-resistant wave-absorbing materials, and particularly relates to an electromagnetic-thermal performance analysis method of a honeycomb wave-absorbing material. Aiming at electromagnetic-thermal multi-physical field performance evaluation of the wave-absorbing honeycomb material, a complex porous multi-scale wave-absorbing honeycomb material is equivalent to a uniform block wave-absorbing material, equivalent electromagnetic parameters and equivalent thermal physical parameters are deduced, and then an equivalent electromagnetic-thermal analysis model is established; the method is not only suitable for single-layer uniform honeycomb wave-absorbing materials, but also suitable for multi-layer gradient gradient honeycomb wave-absorbing materials. According to the electromagnetic-thermal performance analysis method of the honeycomb wave-absorbing material, calculation precision and efficiency are both considered, fine modeling of the honeycomb structure is not needed, grid division of the equivalent block is simple, the number of grids is small, the electromagnetic-thermal performance of the honeycomb is efficiently and rapidly evaluated, and the method is suitable for large-scale popularization and application. And a support is provided for electromagnetic-thermal integrated collaborative design of the honeycomb wave-absorbing material in a high-power application scene.

A kit of parts for manufacturing at least part of a cellular core of a wind turbine blade. The kit of parts includes a plurality of core sections 102, 104 composed of cellular material, each core sect

An optical detection assembly for monitoring a fluid in a vessel includes a light source, a light detector array and a controller programmed to receive the light transmission intensity signals from the light detector array over a predetermined time interval, measure light transmission intensity over the predetermined time interval based on the light transmission intensity signals, calculate a frequency and / or an amplitude of the light transmission intensity signals over the predetermined time interval, compare the calculated frequency to a threshold frequency and / or the calculated amplitude to a threshold amplitude, and determine whether cellular material is present in the fluid based on the comparison of the calculated frequency to the threshold frequency and / or the calculated amplitude to the threshold amplitude.

This invention discloses a combined honeycomb design method that can achieve planar boundary curvature matching. The method mainly includes the following aspects: First, the boundary curvature of the target shape is used to divide the area; based on the area division results, appropriate honeycomb materials and honeycomb structures are selected. Simultaneously, deformation analysis is performed on the honeycomb structure to determine the relationship between the honeycomb angle, Poisson's ratio, and lateral displacement, obtaining the influence law of the honeycomb angle on deformation and Poisson's ratio, and establishing a mathematical model of the relationship between honeycomb angle, Poisson's ratio, and deformation. Further, based on the combined honeycomb boundary connection method, a suitable connection method is selected, and finally, honeycombs of different types and geometric parameters are filled into the corresponding areas. The design method of this invention is simple to operate, has a clear design mechanism, avoids a large amount of mechanical and mathematical calculations, and can quickly and accurately match complex planar states, possessing a wide range of applications and practical value.

The application provides a paper-folding type honeycomb energy-absorbing material and a preparation method thereof. The paper-folding type honeycomb material is obtained by spatial topology of a paper-folding type honeycomb cell. The honeycomb cell can be divided into two connected cells and two Miura cells. The upper, middle and lower neck ends of the honeycomb cell are regular hexagons, and the three regular hexagons are congruent. The honeycomb cell is axisymmetric in the height direction according to the central plane. When the paper-folding type honeycomb is subjected to out-of-plane pressure, the honeycomb will deform due to external compression, achieving the effect of energy absorption and shock absorption. Based on the principle of paper cutting, a paper-folding type honeycomb energy-absorbing material preparation method is provided. The honeycomb sheet is cut into a predetermined shape by a machine cutter, the sheet is bent into a corrugated sheet through a fixed folding mode, and the corrugated sheet is glued to form a paper-folding type honeycomb. This method is expected to realize mass production of the paper-folding type honeycomb energy-absorbing material.

Provided herein are composite scaffold biomaterials including two or more scaffold biomaterial subunits, each including a decellularized plant or fungal tissue from which cellular materials and nucleic acids of the tissue are removed, the decellularized plant or fungal tissue having a 3-dimensional porous structure, the two or more scaffold biomaterial subunits being assembled into the composite scaffold biomaterial and held together via gel casting using a hydrogel glue; via complementary interlocking geometry of the two or more scaffold biomaterial subunits; via guided assembly based biolithography (GAB); via chemical cross-linking; or any combinations thereof. Methods for producing such scaffold biomaterials, as well as methods and uses thereof, are also provided.

The application relates to the technical field of surface defect detection, and discloses a detection device and a detection method for surface tearing and crushing defects of honeycomb materials, the method comprising the following steps: extracting a morphological line diagram of a honeycomb material to be detected according to a to-be-detected image; splitting the morphological line diagram into a plurality of to-be-detected subgraphs with the same shape; extracting a to-be-detected feature vector of the to-be-detected subgraph through a trained feature extraction network; inputting the to-be-detected feature vector into a Gaussian model to obtain a Gaussian probability of the to-be-detected subgraph, wherein the Gaussian model is obtained by fitting feature vectors of a plurality of defect-free training subgraphs; restoring a plurality of to-be-detected subgraphs into the to-be-detected image, and marking and outputting a detection result of the restored to-be-detected image based on the Gaussian probability. The embodiment of the application realizes automatic detection of whether tearing and crushing defects exist on the surface of the honeycomb material to be detected, and improves the detection efficiency.

Embodiments of the present application provide a method and device for constitutive model construction and parameter optimization of honeycomb materials, computer equipment and medium, relating to the technical field of electronic digital data processing, wherein the method comprises the following steps: obtaining original experimental data sets generated by mechanical experiments of the honeycomb material under multiple different working conditions; fitting to obtain a shape function representing the stress-strain relationship under a reference working condition, constructing a density function representing the influence of density on mechanical properties, using an exponential nonlinear function, constructing a strain rate function representing the influence of strain rate on mechanical properties, and constructing a temperature function representing the influence of temperature on mechanical properties; constructing a constitutive model of the honeycomb material based on multi-factor correction factors; taking the minimum mean square error between the stress-strain curve predicted by the constitutive model and the target curve as the optimization target, performing global iterative optimization and outputting. Through the constructed constitutive model, the problem of strong dependence of traditional model parameter fitting and poor universality is solved.

There is provided a kit of parts for manufacturing at least part of a cellular core of a wind turbine blade The kit of parts includes a plurality of core sections (102, 104) composed of cellular material, each core section (102, 104) having a peripheral surface (111) which comprises a first side face (106), a second side face (108) and a third side face (110). Each core section (102, 104) has at least one hole (126) extending inwardly from at least one of first and second end faces (122, 124). The kit of parts further includes at least one dowel (130) composed of cellular material, the dowel (130) being shaped and dimensioned to fit within a respective hole of each of two adjacent core sections (102, 104) so that the at least one dowel (130) connects together the two adjacent core sections (102, 104).

This utility model discloses a heat-setting device for honeycomb materials, relating to the field of honeycomb material processing technology. It includes a heat-setting box assembly and an adjusting frame assembly. The adjusting frame assembly is housed inside the heat-setting box assembly, with limiting components at both ends. Furthermore, fixing column assemblies are symmetrically installed on the lower outer sides of the heat-setting box assembly. This honeycomb material heat-setting device, by installing the adjusting frame assembly inside the heat-setting box assembly, allows for appropriate structural adjustments within a certain range based on the quantity and size of the material being processed, thus meeting different processing needs. The limiting components structurally limit the material at both ends of the adjusting frame assembly to ensure the material's stability. The fixing column assemblies structurally limit and fix the heat-setting box assembly as needed, ensuring structural stability and support.

Disclosed herein, inter alia, compositions and methods for efficient transfer and analyses of cellular material, tissue samples, such as tissue sections, using tissue transfer hydrogel devices.

An improved packaging assembly for storing, distributing, treating, mixing, and dispensing tissue and / or cellular material and / or implantable material. The packaging assembly may include pouches, tubes, and a bag made of a sealable, flexible polymeric material that is open at one end and a needle-free swabable connector attached to the pouch at the other end and acting as a port to allow for the introduction or discharge of biological solutions, rinsing solution, and / or preservation solutions into the packaging assembly. The designed thickness of the wall of the packaging assembly facilitates efficient heat / cold transfer, which is useful for successful controlled rate freezing, quick thawing, and resuscitation of viable cells or tissue. The packaging assembly is also useful for combining additional biological fluids with the cellular material or tissue, and for efficient mixing of the biological fluids with the tissue and / or cellular material in the assembly.

The utility model discloses a kind of heating solidification devices for wave-absorbing honeycomb, including rack, the top of rack inside is equipped with conveyor belt, the center position of rack top is equipped with solidification box, the surface of solidification box is equipped with door, the outer wall of the both sides of solidification box is equipped with side box body, the bottom of side box body is connected with the top of rack, rotatingly installed with screwing shaft on the inner wall of rack below, the outer wall of screwing shaft both ends is all fixed with driving bevel gear, driving bevel gear is rotatably installed with driven bevel gear above, driven bevel gear and driving bevel gear are mutually engaged, the center position of the top of driven bevel gear is equipped with connecting shaft, the top of connecting shaft extends to the inside of solidification box and is equipped with screw rod. The utility model not only improves the application range of heating solidification device, also improves the convenience when heating solidification device is used, and improve the solidification effect of wave-absorbing honeycomb material when heating solidification device is used.

The invention provides a multi-physics field finite element modeling method and system of a honeycomb structure and a storage medium, and relates to the technical field of honeycomb structure finite element modeling. In order to solve the problems that in the prior art, when finite element modeling is carried out on a honeycomb structure, the calculation efficiency and the simulation precision cannot be considered at the same time, and the internal air adiabatic compression effect and the in-plane shear tearing effect are difficult to reproduce synchronously, a macroscopic homogeneous entity-failure beam unit network-built-in closed air bag triple integration model is constructed; a dynamic coupling mechanism is established, so that the real-time failure state of a beam unit directly controls the area of an air bag leakage hole, physical drive type high-fidelity simulation of the dynamic air effect and the local tearing effect of a honeycomb material is achieved, the accuracy of collision load prediction and energy absorption evaluation is improved, and the accuracy of collision load prediction and energy absorption evaluation is improved through calibration of a multi-working-condition test data system. And the robustness and generalization ability of the model in a complex impact scene are enhanced.

To provide a composite honeycomb body material for controlling gas humidity and a method for manufacturing the same in which the deterioration of dynamic performance and hygroscopic capacity due to the extension of use time is reduced.SOLUTION: A moisture control composite honeycomb material, comprising a honeycomb substrate and a functional coating layer on a surface of the honeycomb substrate, wherein the honeycomb substrate is made of a glass fiber felt or a ceramic fiber felt, the functional coating layer comprises a hygroscopic material and an inorganic component, a mass ratio of the hygroscopic material to the inorganic component is 1: (0. 4-1), and the hygroscopic material is any two selected from the group consisting of a molecular sieve, a silica gel, a metal organic framework material and a polymeric hygroscopic material; The inorganic component is any one selected from silica sol, alumina sol and pseudo-boehmite, and the functional coating layer is intermittently distributed on the surface of the honeycomb substrate to form functional coating regions and blank regions on the surface of the honeycomb substrate.SELECTED DRAWING: None

This invention provides a high-precision molding and processing method for hyperboloid honeycomb, belonging to the field of aerospace composite material manufacturing. The molding and processing method includes the following steps: First, a curved surface that ensures the honeycomb lattice direction is perpendicular to the lattice wall direction is identified as the molding surface, and the other surface is identified as the processing surface. Next, a mold consisting of a base layer and a removable layer is designed and manufactured, with the removable layer's profile fitting the molding surface. Then, pre-impregnated honeycomb material is laid on the removable layer and cured, ensuring the lower surface of the honeycomb precisely fits the profile and the lattice direction is correct. After curing, the removable layer with the honeycomb is transferred as a whole to a CNC machine tool for single-sided milling of the processing surface. Finally, the processed honeycomb and removable layer are transferred together to the bonding process. This invention achieves high-precision manufacturing of hyperboloid honeycomb through single-sided molding, single-sided processing, and overall transfer, effectively controlling the lattice direction and lattice wall direction, improving material utilization and product performance consistency.

The application provides a multi-physical field finite element modeling method and system of a honeycomb structure and a storage medium, and relates to the technical field of finite element modeling of a honeycomb structure. In the prior art, when finite element modeling is performed on a honeycomb structure, the calculation efficiency and simulation accuracy cannot be considered at the same time, and it is difficult to simultaneously reproduce the internal air heat insulation compression effect and the in-plane shear tearing effect. The application builds a macro-homogeneous solid-failed beam element network-enclosed air bag three-integrated model, and establishes a dynamic coupling mechanism, so that the real-time failure state of the beam element directly controls the air bag leakage hole area, realizes physical driving type high-fidelity simulation of the dynamic air effect and local tearing effect of the honeycomb material, improves the precision of collision load prediction and energy absorption evaluation, and through multi-working condition test data system calibration, the robustness and generalization ability of the model in a complex impact scene are enhanced.

A method for regulating and controlling an ultrasonic cutting speed of an outer paraboloid of a honeycomb material is provided. The method includes: regulating and controlling an ultrasonic cutting speed of an outer end face of a honeycomb blank, an ultrasonic cutting speed of an outer paraboloid of the honeycomb blank in a roughing stage, an ultrasonic cutting speed of the outer paraboloid of the honeycomb blank in a first finishing stage, an ultrasonic cutting speed of the outer paraboloid of the honeycomb blank in a second finishing stage, and an ultrasonic cutting speed of an outer peripheral face of the honeycomb blank. The ultrasonic cutting method according to the present disclosure in which the ultrasonic cutting speed V is kept constant can improve the machining quality of parts with the outer paraboloid of the honeycomb material and ensure the service life of a sharp knife.

The invention relates to the technical field of honeycomb material processing, in particular to a honeycomb material arc processing method. The honeycomb material arc machining method comprises the steps that a tool is designed according to a workpiece blank, the tool blank is placed on a machine tool table top, and a milling cutter is used for machining the tool blank to obtain a tool; the workpiece blank is installed on a tool, a milling cutter is used for conducting first-time machining on the surface of the workpiece blank, and part of honeycomb materials on the surface of the workpiece blank are milled; the ball-end milling cutter is used for conducting secondary machining on the workpiece blank; sweeps in an arc area on the surface of the workpiece blank are cleaned; the diamond grinding tool is used for conducting third-time machining on the surface arc area subjected to second-time machining at a preset angle; and after machining is completed, the machined surface is measured. The device is used for machining the honeycomb arc area, burrs can be prevented from existing in the honeycomb arc area, product out-of-tolerance is effectively avoided, meanwhile, the manual burr treatment time is shortened, and therefore the machining quality can be improved, and the machining efficiency is improved.