135 results about "Bi layered" patented technology

The utility model discloses a reinforced double-layer buffering angle bead, and relates to the technical field of packaging products. Comprising a corner protector body, the corner protector body comprises an inner side wall, an outer side wall and a cavity formed between the inner side wall and the outer side wall, the inner side wall and the outer side wall are each provided with a plurality of criss-cross grooves, the grooves are segmented and obliquely deepened towards the cavity in an arch arc shape, and the intersection point of every two adjacent grooves is deepest sunken. And the intersection points of the grooves in the inner side wall and the outer side wall correspond to each other and are mutually connected to form supporting points. The plurality of arch-shaped grooves are connected together in the cavity to form a framework-like structure, a gap space can be formed to meet the requirement that gas can smoothly flow in the material pipe in the blow molding process, and the wall surfaces of the inner side wall and the outer side wall can be supported by a plurality of supporting points, so that the wall surfaces can be prevented from collapsing, and the service life of the material pipe is prolonged. The whole large-area wall surface is divided into a plurality of buffer units by the grooves, so that the strength of the wall surface is greatly improved.

This invention discloses a two-color injection molding process for Tritan material, belonging to the field of injection molding technology, which solves the problem of easy delamination and fusion lines in two-layer injection molding of the same Tritan material. The injection mold used in this process includes a male mold, a first injection mold, and a second injection mold. The workpiece includes a transparent inner layer and a transparent outer layer. The steps include: S1. Injecting molten Tritan raw material into the first injection mold heated to 100-130°C to form a transparent inner layer; S2. Cooling the first injection mold to 35-50°C, after mold opening, the transparent inner layer remains in the male mold and rotates 180 degrees to close with the second injection mold, so that the residual temperature of the transparent inner layer is maintained at 35-50°C; S3. Injecting molten Tritan raw material into the second injection mold heated to 100-130°C to form a transparent outer layer on the outer wall of the transparent inner layer; S4. Cooling and solidification; S5. Demolding. This invention achieves molecular chain diffusion and entanglement at the interface of inner and outer layer materials by precisely controlling the temperature of two injection molding processes, resulting in a product with strong interlayer bonding, high transparency, and rich visual effects in a single molding process.

This invention provides a method, system, device, and medium for simulating the spin transport properties of multiferroic materials, belonging to the field of materials simulation and computation technology. The simulation method for multiferroic materials includes: geometrically optimizing the structure of an asymmetric low-dimensional multiferroic material based on first-principles calculations to obtain its ground-state structure; determining the physical property parameters of the asymmetric low-dimensional multiferroic material based on the ground-state structure; constructing a two-layer system architecture with multiple polarization stacking modes for the asymmetric low-dimensional multiferroic material based on the ground-state structure; and calculating the spin transport properties of each two-layer system architecture to obtain the spin transport-related characteristic curves of the asymmetric low-dimensional multiferroic material. This invention significantly improves the simulation accuracy of spin transport properties through the synergy of high-precision ground-state modeling and multi-polarization configuration construction.

The utility model discloses double-layer laminated glass and relates to the technical field of glass. The double-layer laminated glass comprises a laminated glass body, a sleeve seat and a positioning base, the sleeve seat and the positioning base are arranged on the outer side of the laminated glass body, a first rubber ring is movably clamped in the sleeve seat, a second rubber ring is movably clamped in the positioning base, and a locking mechanism is arranged between the sleeve seat and the positioning base. According to the double-layer laminated glass, loading of the laminated glass body is convenient through the sleeve base, the positioning base and the locking mechanism, the laminated glass body is protected through the sleeve base and the positioning base, sealing and buffering of the laminated glass body are achieved through the first rubber ring and the second rubber ring, and when the first rubber ring and the second rubber ring are aged, the first rubber ring and the second rubber ring are sealed and buffered. And the first rubber ring and the second rubber ring can be conveniently and rapidly replaced and maintained, so that the device is easy to maintain, and the use requirements are met.

The application discloses a soft and dry double-layer composite material, which comprises a bottom layer and a surface layer arranged on the upper portion of the bottom layer, wherein the surface layer has an upper surface and a lower surface, the surface layer is provided with an opening penetrating through the surface layer, the bottom layer is provided with a first protruding portion protruding upward, the first protruding portion penetrates through the opening, the top surface of the first protruding portion is higher than the plane where the upper surface of the surface layer is located, and the fiber fineness of the bottom layer is smaller than that of the surface layer. The application can provide a good soft and comfortable experience for users and improve the dryness of the material.

This invention discloses a lightweight sound-absorbing building material, its preparation method, and its application in ceiling components, relating to the field of lightweight building materials technology. The lightweight sound-absorbing building material of this invention consists of a porous plate and a glaze layer on the surface of the porous plate. The glaze layer is formed by spraying glaze onto the surface of the porous plate; the porous plate is formed by sintering a plate-forming composition; the plate-forming composition includes the following raw materials: waste foamed ceramic powder, diatomaceous earth, hollow glass microspheres, cellulose nanocrystals, bilayer fibers, a foaming agent, and an ethanol solution of polyethyleneimine. The core-shell structure bilayer fibers introduced in this invention, with a mesoporous barium titanate-silica composite phase as the core and an MXene-graphene composite phase as the shell, effectively improve the material's sound absorption and noise reduction capabilities; the introduction of hollow glass microspheres and cellulose nanocrystals further enhances the material's lightweight properties, flexural strength, and sound absorption and noise reduction capabilities. Therefore, this invention has broader application prospects.

The invention discloses an efficient and precise construction method for a double-layer hyperbolic metal roof based on BIM. The efficient and precise construction method comprises the steps that a double-layer metal roof BIM overall model is constructed; a datum control line of the roof bearing and supporting assembly is determined; according to the reference control line, the roof bearing and supporting assembly is positioned and installed; and the roof aluminum plate is subjected to wire arrangement positioning and installation, a joint area of the installed roof aluminum plate is glued, and finally the constructed roof aluminum plate is checked and accepted. According to the method, the loss rate of main materials and the labor input can be reduced, joints between the plates are reduced, and the overall waterproof and wind uplift-resistant performance of the roof enclosure structure is guaranteed.

The invention belongs to the technical field of coatings, and particularly relates to a refractory coating and a preparation method thereof, a refractory coating and a preparation method thereof, and a double-layer composite pipe with a flat inner surface. The fireproof coating comprises a component A, a component B and a component C, the component C is prepared from the following raw materials in parts by weight: 55-100 parts of functional filler and 1-2 parts of coupling agent; wherein the functional filler comprises an ammonium phosphomolybdate coated UIO-66 composite material and further comprises at least one of mica powder, glass flakes, silicon dioxide powder and aluminum oxide powder. According to the fireproof coating provided by the invention, the raw materials comprise the functional filler of the ammonium phosphomolybdate-coated UIO-66 composite material, so that the fireproof performance, the antistatic performance and the impact resistance of the coating can be improved.

The utility model discloses a double -deck corner backflow device relates to conveying equipment technical field, including upper corner conveying layer, lower corner conveying layer and elevator, and the elevator is arranged in one end of upper corner conveying layer and lower corner conveying layer, and upper corner conveying layer is located the top of lower corner conveying layer, upper corner conveying layer includes first upper conveying frame and second upper conveying frame, and constitutes the upper input layer of corner, lower corner conveying layer includes first lower conveying frame and second lower conveying frame, and constitutes the lower output layer of corner, and upper corner conveying layer and lower corner conveying layer are located the position of corner and are equipped with the upper push -board and lower push -board for promoting the transfer of box, and the elevator includes lifting frame, and lifting frame is equipped with the lifting platform for the backflow transfer of box from upper corner conveying layer to lower corner conveying layer, the utility model discloses can carry out the packing conveying operation of material processing equipment one side, and can realize corner conveying, can efficiently complete packing conveying.

The invention discloses a tunnel lining load distribution method and device based on single-layer and double-layer model coordinated deformation, and relates to the technical field of tunnel composite lining design. The method comprises the steps that a tunnel double-layer model structure is established according to surrounding rock parameters and a load distribution form, the tunnel double-layer model structure is used for simulating coordinated deformation between a primary support layer and a secondary lining layer, and the displacement response of the secondary lining layer is calculated through loading. And on the basis, a tunnel single-layer structure model without a primary support layer is established, iterative solution is performed through the displacement mapping relation according to the displacement response of the secondary lining in the composite lining tunnel, and a target load distribution coefficient is obtained. By constructing the tunnel double-layer model structure and utilizing the displacement mapping relation to carry out iterative calculation, dynamic quantitative evaluation of the stress state of the secondary lining is achieved, the accuracy and reliability of load distribution proportion analysis are improved, and therefore the stability and construction safety of the tunnel structure are effectively guaranteed.

ZEOLITH / ELASTOMER COMPOSITE MATERIAL The present invention relates to a composite material comprising a) at least one elastomer, and b) an amount equal to or greater than 30% by weight, relative to the total weight of said composite material, of type 3A zeolite, the cationic sites of which are occupied by the potassium cation, the sodium cation, at least one cation of an alkaline earth metal from group IIA of the periodic table, and the hydronium cation. The invention also relates to the use of said composite material as an adsorbent material, for the manufacture of masterbatches, for packaging, and for the manufacture of double glazing. Fig.: none

To provide a floor trim material that can be surely fastened to a floor surface without increasing the width of a base material, can have a thin basis weight of a cover material, is hard to crack even when stepped on, and has a good appearance. [Solution] A long interior component comprising a pair of cover materials 1 and a base material 2, with the base material 2 being able to be fixed to the floor surface by floor fixing means 3, wherein a convex portion 12 consisting of a single protrusion along the longitudinal direction is formed on the underside of the face 11 of the cover material 1, allowing the edge of the face 11 to be placed on the edge of the floor material F, while twin walls 22 consisting of two protrusions along the longitudinal direction are formed in approximately the centre of the upper surface of the base plate 21 of the base material 2, allowing the convex portion 12 to be inserted into a recess 22A between the twin walls 22 and secured in place, and a notch 22B is formed in the twin walls 22, allowing the base plate 21 to be cut at this notch 22B, making the widthwise length of the face 11 of the cover material 1 greater than the widthwise length of the base plate 21 of the base material 2.

This invention discloses a method for preparing high-temperature resistant polyimide foam material, comprising: preparing a foamable precursor powder using aromatic dianhydride and diamine; performing bilayer extrusion and foaming molding using two single-screw extruders, wherein one extruder extrudes and foams the foamable precursor powder, and the other extrudes fiber-reinforced thermoplastic resin; the two are compounded at a co-extrusion die, and shaped by a shaping die to obtain a polyimide foam composite material with a fiber-reinforced resin layer on the surface; cutting and collecting polyimide foam strips or foam particles of equal length, filling them into a die, and then hot-pressing to obtain the polyimide foam composite material. This invention significantly improves the operability of polyimide foam preparation and simplifies subsequent molding processes. This invention also provides a high-temperature resistant polyimide foam material obtained by the above preparation method, which can simultaneously provide high compressive strength, high modulus, and low density, and is easy to scale up for production.

1. Name of the product in this design: Glass Tent (Double-Layer Tower Top). 2. Purpose of this design: To provide temporary activity or accommodation spaces for people. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view is omitted.

The invention relates to a method and a device for producing a double-layer nonwoven fabric, in which synthetic cut fibers (2a) are fed to a carding machine (3) for cleaning and orientation by means of a first feed unit (2), the fibrous web (3a) output from the carding machine (3) is reinforced in a first reinforcing means to form a nonwoven fabric (4a) and the nonwoven fabric is placed on a circulating conveyor belt (5), and the short wet-laid fibres (6a) are continuously placed on the upper side of the nonwoven fabric (4a) by means of a second supply unit (6) in the material conveying direction, in this way, a double-layer nonwoven fabric (9) is formed, in which individual layers (4a, 6a) are connected to one another and dried in a subsequent second reinforcing means.

The application discloses a double-layer insulation-coated soft magnetic composite material with a high-thermal-conductivity network structure and a preparation method thereof. First, a surfactant is used to perform surface modification treatment on soft magnetic powder, and an Al2O3 insulation coating layer with high resistivity and high thermal conductivity is formed on the surface of the modified soft magnetic powder in situ through a sol-gel reaction. Then, the magnetic powder coated with the Al2O3 insulation layer is uniformly mixed with a composite resin doped with dendritic nano Al2O3 powder, a second thermal-conductivity shell layer is constructed on the outer layer of the magnetic powder, and a composite powder with a double-layer insulation-coated structure is formed. The obtained composite powder is sequentially subjected to granulation, compression molding and low-temperature solidification treatment, so that the target soft magnetic composite material is prepared. According to the double-layer coating process, a continuous and through thermal-conductivity network is successfully constructed in the composite material, so that the overall heat dissipation efficiency of the composite material is remarkably improved, and the current can be efficiently insulated.

The invention discloses a composite noise reduction structure based on a local resonance principle and a preparation method thereof, and belongs to the field of design and processing of composite noise reduction structures. The structure comprises an epoxy resin supporting panel, a metal ring-elastomer local resonance unit and a porous material, and efficient suppression of broadband noise is achieved through combination of the local resonance effect and the porous sound absorption characteristic. The resonance unit is of a structure in which a metal ring and an elastic body are mechanically embedded and are in mirror distribution; the elastic body is of a stepped cylinder structure, the metal ring is nested on a small-diameter cylinder, and the metal ring is a double-layer elastic supporting body with radial rigidity gradient after mirroring; the epoxy resin supporting panel is poured and formed through a steel mold, the elastic body is poured through a split mold, a metal ring cutting process and a porous material are processed and prepared according to requirements, and all the components are assembled into a whole through an adhesive. The invention has the advantages of obvious noise reduction effect, light weight, strong durability, simple preparation process and the like, and is suitable for noise control in various different application scenes.

This invention discloses a high-strength passive daytime radiation cooling film and its preparation method, belonging to the field of functional polymer materials and thermal management technology. The film has a bilayer composite structure, including an upper reflective layer and a lower emitting layer. This invention employs an integrated process of melt blending-lamination-biaxial stretching-induced phase separation-extraction pore-fixing. Through a process design of stretching followed by extraction and a hierarchical biaxial stretching strategy, it achieves highly oriented molecular chains to enhance mechanical properties while precisely constructing a multi-level structure with both nanopores and micropores. The resulting film exhibits an average reflectivity >93% in the solar radiation band (0.25–2.5 μm), an average emissivity >95% in the atmospheric window (8–14 μm), a thermal conductivity <0.1 W / (m·K), and a tensile strength >30 MPa. This invention solves the technical bottleneck of achieving high reflectivity, high emissivity, low thermal conductivity, and high strength simultaneously in radiation cooling materials, and can be widely applied in building energy conservation, outdoor equipment thermal management, and electronic device heat dissipation.

Polymer sheet composition, characterized in that it comprises: at least two outer layers A and C and an intermediate layer B, wherein layers A and C individually comprise a thermoplastic polymer having a tensile modulus of approximately 1000 MPa to 2500 MPa and a glass transition temperature and / or melting point of approximately 80 °C to 180 °C, wherein the intermediate layer B comprises one or more elastomer(s) having a tensile modulus of approximately 50 MPa to approximately 500 MPa and a glass transition temperature and / or melting point of approximately 90 °C to approximately 220 °C, wherein layers A and C comprise a copolyester, and wherein the intermediate layer B preferably comprises a polyurethane, in particular an aromatic polyester polyurethane.

1. Name of the product in this design: Double-layer arched stone-clad molding strip (I). 2. Purpose of this design: For use as decorative partition strips between interior and exterior walls. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention provides a manufacturing method and equipment of a concrete-red mud composite component, and relates to the technical field of concrete construction and manufacturing, and the method comprises the following steps: placing an inner mold and an outer mold in a vibration module, pouring common concrete in a gap between the inner mold and the outer mold, and pouring red mud concrete in the inner mold. Before solidification, real-time state data of fluidity, compactness, temperature and the like of the two kinds of concrete are collected, and a rheological model is constructed based on the real-time state data and physical data. And analyzing real-time state data, and adjusting the frequency and strength of the vibration module and the rising speed of the internal mold. Before preliminary solidification, the inner mold ascends at a preset speed during vibration, and data are continuously collected to optimize parameters. And after the inner mold completely ascends, the vibration module stops, the double-layer mold stands to form the concrete, and the composite component is obtained. According to the method, data of the two materials are collected in real time, parameters and speed are dynamically adjusted in combination with the model, dynamic collaborative forming is achieved, shearing and compacting are optimized, interface cementation and structure homogenization are promoted, and performance is improved. Compared with a traditional process, the cracking risk is reduced.

The utility model provides a double-layer feeding and emptying slideway structure which is based on an integrally welded double-layer main body frame and comprises a top layer rolling slideway which is obliquely arranged and a lower part bearing slideway which is horizontally arranged, and the top layer rolling slideway and the lower part bearing slideway are distributed up and down; the top-layer rolling slide way is used for bearing a sliding plate on which materials are placed, and moves from the feeding end to the material taking end to convey the materials; the lower bearing slide way bears the empty slide plate and moves from the material taking end to the feeding end to convey the empty slide plate; a baffle is arranged at the position, close to the material taking end, of the top-layer rolling sliding way. The gap of the top rolling slide way and the lower bearing slide way at the material taking end forms an empty plate return opening, and after materials are taken away from the baffle, the empty slide plate obliquely slides to the lower bearing slide way from the empty plate return opening. The top layer rolling slide way is combined with the lower bearing slide way, feeding and empty returning are achieved, the number of the upper layer rollers is reduced, the sliding plate does not need to be taken and placed repeatedly, the structure is simple, and operation is convenient.

This invention discloses a BIM and AI collaborative architectural design optimization method, relating to the field of architectural design, comprising the following steps: Step 1, two-layer intelligent agent modeling; Step 2, environmental constraint modeling; Step 3, two-layer reward mechanism design; Step 4, two-stage collaborative game optimization; Step 5, automatic generation of BIM model; and Step 6, performance feedback closed-loop iteration. This invention's BIM and AI collaborative architectural design optimization method addresses the core shortcomings of traditional design processes, such as low optimization efficiency, difficulty in balancing multiple objectives, and easy omission of regulatory constraints, by constructing a complete intelligent closed-loop system of "modeling-optimization-generation-feedback".

The application provides a gradient multi-element composite self-lubricating seal coating and a preparation method thereof. The coating is composed of a double-layer multi-element composite coating structure of a "matching layer-protection layer" gradient transition. The matching layer is composed of multi-element mixed metal powder. The protection layer is composed of a metal phase with a mass fraction of 70% to 80% and good corrosion resistance, a self-lubricating phase doped with a single element or a compound with a mass fraction of 15% to 30% and self-lubricating properties, and a ceramic phase with a mass fraction of 2% to 3% and a certain hardness. The application combines the coupling protection requirements of wear resistance, self-lubrication, corrosion resistance and the like of the seal coating, takes a metal-based material with excellent corrosion resistance as a main phase, selects a hard wear-resistant phase, a self-lubricating phase, a regulation and control phase and the like for synergistic matching and strengthening, constructs a multi-element composite corrosion-resistant seal coating material system, designs the double-layer multi-element composite coating structure of the "matching layer-protection layer" gradient transition, and guarantees the matching and bonding strength of the coating system. The application can be used for sealing of aviation casing parts.

The invention relates to a double-layer closing clamp of an absorbable and non-absorbable material mixed molding structure, which comprises at least two closing clamp units arranged side by side left and right, each closing clamp unit comprises an upper clamping arm and a lower clamping arm, the rear ends of the upper clamping arm and the lower clamping arm on the same side are fixedly connected, and the front ends of the upper clamping arm and the lower clamping arm are mutually locked through a locking structure; the two adjacent upper clamping arms are fixedly connected through connecting blocks, and the two adjacent lower clamping arms are fixedly connected through connecting blocks. Wherein at least one closing clamp unit is made of absorbable and degradable materials, and at least one closing clamp unit is made of non-absorbable materials. The invention aims to provide a double-layer closing clamp of a mixed molding structure of absorbable and non-absorbable materials. The invention has the following advantages: on the basis of the absorbable and degradable material, the non-absorbable material closing clamp with stronger and more stable performance is added through the injection molding process, thereby effectively avoiding the problem that the closing clamp product made of the absorbable and degradable material is easy to break and slip due to insufficient strength.

The application discloses a kind of double-layer color steel tile factory roof purlin reinforcing methods, specifically related to color steel tile technical field, the roof of double-layer color steel tile factory includes I-shaped crossbeam and is set on the crossbeam several purlins, and the purlin is H-shaped structure, is composed of upper plate, lower plate and vertical web between upper plate and lower plate, the method includes the following: zigzag purlin card and L-shaped crossbeam docking piece are provided, purlin card and crossbeam docking piece are integrally arranged, and purlin card is clamped in the interior of purlin.The application uses single purlin card and crossbeam docking piece integrally arranged to reinforce and fix purlin, so that crossbeam docking piece and purlin card become a whole, in the process of reinforcing, the workpiece applied by the whole is less, processing and fixing are facilitated, meanwhile, the inside of purlin can be supported, so that the edge deformation and distortion caused by external force in use process are reduced.