32 results about "Foamcore" patented technology

The invention discloses a method for preparing a foam core composite material component, and relates to the technical field of composite material component preparation. The foam core composite material component consists of two parts: foam and a composite material outer skin. The preparation method proposed by the invention comprises the following steps: firstly laying a layer of foam film on the foam, and then laying the outer skin. Common composite material forming processes such as molding, autoclave, and bag pressing can be adopted. In the preparation method of the invention, the foam film is not affected by the shape of the foam core composite material component and the mold structure during the forming process, and can provide internal expansion force, reduce the influence of the prepreg glue content, surface weight, etc. on the thickness difference of the blank; reduce the foam processing size error and the influence of the mold processing size; reduce the influence of high temperature creep during the foam forming process; reduce the influence of mold temperature unevenness, pressure unevenness, and thermal expansion coefficient difference; and greatly improve the reliability of the internal quality of the sandwich composite material component.

The present invention relates to a method and device for mounting pictures, art, and other images on a wall or other mounting surface by creating a receptacle on the back of a foamcore image or an image printed or placed on other solid core medium wherein the receptacle fits onto a mounting plate that is attached to the mounting surface.

The utility model discloses a secondary glued full-height foam structure unmanned aerial vehicle elevator which comprises an upper wall plate, a lower wall plate and a beam, wherein the upper wall plate, the lower wall plate and the beam are of a composite material laminated structure. Front edge areas are arranged at the front ends of the upper wall plate and the lower wall plate, the beam is located in the front edge areas of the upper wall plate and the lower wall plate, the space between the upper wall plate and the lower wall plate is filled with a full-height foam core, the upper wall plate, the lower wall plate and the beam form an elevator, end partition plates are arranged at the two ends of the elevator, a control connector is arranged at one end of the elevator, and a front edge partition plate and a suspension connector are arranged on the beam. And the rear ends of the upper wall plate and the lower wall plate as well as the front edge areas of the upper wall plate and the lower wall plate and the beam are in secondary cementing connection through medium-temperature adhesive films. And the structural integrity is good, the structural weight is reduced, fastener connection is reduced, the process assembly amount is reduced, and the manufacturing cost is reduced.

Lightweight composite panels, compositions used to make composite panels, and methods for manufacturing composite panels. The composite panels include a lightweight foam core sandwiched between thin protective layers (e.g., fiber reinforced cementitious layer, thermoset polymer layer, e.g., polyurea or polyaspartic, or magnesium oxide). Lightweight composite panels can be used in place of conventional wallboards and panels, including for various uses such as interior drywall, backerboard for tile and other interior finishes, including those exposed to moisture, exterior sheathing, floor underlayment, soffits, roofing decks, shaft liners, and the like. Lightweight composite panels can be cut, drilled, and screwed onto structural elements of buildings, such as wall frames comprising wooden or metal studs, roof frames comprising boards, studs, or trusses, floor joists, concrete floors, foundations, and the like. Exterior sheathing panels can include a drainage layer and / or a factory installed finish. Interior panels that replace gypsum boards can include a plaster layer.

The application discloses a foam sandwich structure with broadband electromagnetic wave absorption and lattice mechanics enhancement, belongs to the technical field of electromagnetic wave absorbing materials, and comprises, from top to bottom, a wave-transparent panel, a resistive film composite foam core material and an electromagnetic wave reflecting back plate; the resistive film composite foam core material is wrapped with orthogonal lattice webs around; the resistive film composite foam core material comprises a plurality of resistive film composite foam core layers; each resistive film composite foam core layer comprises a foam layer and a resistive film piece which is combined on the foam layer; the resistive film piece comprises a wave-transparent composite material piece and a resistive film layer; and the resistive film layer is printed on the wave-transparent composite material piece. The glass fiber reinforced resin-based composite material is used as the panel layer and the bidirectional lattice web, the basic mechanics performance of the structure is ensured, the resistive films with different square resistance values are combined in the foam core material, and the broadband electromagnetic wave absorption performance is achieved.

Interactive book for telling a story and comprising a plurality of integrated see-through clamshell pages, each divided by a divider portion defining a portal, and further comprising a top cover, a rear cover, and a binding mechanism, the pages preferably comprising mat or foam core boards with cutouts to display parts of the clamshells, and the clamshells being oriented with respect to these boards, featuring extended edges and fastening members to secure positioning, the book further comprising a plurality of interactive elements within the transparent clamshells, some of which elements are magnetized, for allowing users to move elements with a magnetic member through the portal, without directly contacting the element and as the story progresses, the book facilitating a dynamic storytelling experience, inviting users to engage with the narrative as prompted by the story's guidance and through physical interaction with the story elements.

The application discloses a preparation method of a large-length-ratio thin-wall composite material pipe beam and the pipe beam prepared by the method. The method comprises the following steps: step S1, preparing a foam core mold; step S2, sleeving a tubular air bag outside the foam core mold and vacuumizing; step S3, laying a prepreg sheet on the air bag; step S4, transferring the foam core mold and the air bag with the completed prepreg sheet to a mold cavity of a metal mold; step S5, filling the air bag with high-pressure gas, and then sending the air bag into an oven for heating and curing; step S6, after curing, opening the mold to obtain a product, and extracting the air bag and the foam core mold residues from the product, thereby obtaining the pipe beam product. The application overcomes the problems of the conventional metal positive mold laying-vacuum bag forming-heat press tank curing method, such as demolding difficulty, product straightness out-of-tolerance caused by mold deformation, poor surface quality and the like.

The invention discloses a light foam sandwich composite material and a preparation method thereof.The light foam sandwich composite material comprises a resin-impregnated lower-layer fiber panel, a first transition layer, a light foam core layer, a second transition layer and a resin-impregnated upper-layer fiber panel which are sequentially arranged from bottom to top; the light foam core layer comprises a lower surface filling layer, a foam core layer and an upper surface filling layer, and the lower surface filling layer and the upper surface filling layer are obtained by filling the lower surface of the foam core layer with modified hollow glass beads and opening holes in the upper surface. The preparation method comprises the following steps: preparing the modified hollow glass beads, preparing the resin film containing the modified hollow glass beads, laminating and laying, heating and curing, and turning over. According to the light foam sandwich composite material, the interface glue absorption amount of the foam sandwich composite material can be effectively reduced, meanwhile, the mechanical strength is reserved, the light foam sandwich composite material has the advantages of high strength and low density, the preparation method is simple and easy to implement, the cost is low, and large-scale production is facilitated.

The present invention discloses a composite reinforced bulkhead, a manufacturing mold for the composite reinforced bulkhead and a molding method for the composite reinforced bulkhead, and relates to the technical field of bulkhead structure equipment. The reinforced bulkhead comprises a frame, a foam core and reinforcing ribs, the frame is formed by a composite material ply, and a reinforcing layer is provided in the composite material ply. The manufacturing mold for the composite reinforced bulkhead comprises a chassis, an outer mold and a base, the chassis is provided with a raised component consistent with the shape of the through hole at the position of the through hole of the reinforced bulkhead. The molding method for the composite reinforced bulkhead comprises the overall plying of the composite material and the plying of the reinforcing layer, and the final plying exceeding the pre-plying part and removing the isolation film, so as to complete the overall plying of the reinforced bulkhead. The advantages of the present invention are that the local strength and rigidity of the bulkhead are enhanced, the integrity is strong, and the problems of insufficient connection strength with aircraft components and heavy bulkhead weight are solved.

Wall structures include: a wall frame made from a plurality of studs or other structural elements and optionally wall sheathing; first lightweight composite panels fastened to the wall frame to form a first wall substructure; and lightweight composite panels fastened to the wall frame to form a second wall substructure opposite the first. A complete wall can have an interior wall and exterior wall, two interior walls, or two exterior walls. Interior walls may include lightweight composite panels having a polymer, plaster, or paper show surface. Exterior walls may include lightweight composite panels with exterior finish, such as stucco, brick veneers, tiles, or stone. Lightweight composite panels are fastened to the sheathing and / or studs by screws, other mechanical fasteners, and / or adhesive. Lightweight composite panels include a foam core and fiber mesh reinforced cementitious (or other protective) layers formed on the foam core.

The invention discloses a production method of a waist cushion with a three-dimensional cambered surface structure and an adjustable bulge, and relates to the technical field of waist cushion production, and the production method comprises the following steps: acquiring user waist support demand data, and generating a three-dimensional parameterized model comprising a three-dimensional cambered surface geometrical shape, material density distribution and an air bag arrangement position; according to the three-dimensional parameterized model, a gradient foam core body with a center high-density bulging area and an edge low-density transition area is integrally formed through an additive manufacturing process, and positioning protrusions are arranged on the surface of the gradient foam core body; laser cutting is carried out on the silica gel composite film according to the geometric pattern of the folded paper to form a folded base material, a micro air bag is embedded in a preset position of the folded base material, a flexible fluid channel network communicating with the micro air bag is integrated through thermocompression welding, and a folded paper-air bag composite functional layer is obtained; and the folded paper-air bag composite functional layer is assembled on the gradient foam core body, so that the positioning protrusions are matched with the positioning holes in the folded paper-air bag composite functional layer.

The invention relates to a composite material manufacturing technology, and provides a natural fiber three-dimensional reinforced composite board and a manufacturing method thereof. The method comprises the steps that natural fiber woven cloth is laid in a forming mold with a corrugated, arch-shaped or rib-shaped outline, epoxy resin is applied for dipping and curing, and the woven cloth forms a hard framework with a fixed three-dimensional structure; the framework is placed in a foaming mold, and the spatial position of the framework is kept through a positioning structure; and injecting polyurethane, polyethylene, PET foaming materials or other polymer foaming systems into the mold, so that the filling material permeates and fills a gap between the mold and the skeleton in the expansion or curing process, and the filling material and the natural fiber skeleton are integrally formed to obtain the composite board. The plate internally comprises a stable natural fiber three-dimensional supporting structure, the out-of-plane compression performance and the shear bearing capacity of the foam core material can be improved, and the plate is suitable for the fields of sports equipment, vehicle interiors, light structural plates and the like.

The utility model relates to a composite material double-sandwich board which comprises a first composite layer board, a first foaming layer, a second composite layer board, a second foaming layer and a third composite layer board, an end panel is arranged at the end part of the composite material double-sandwich panel; a reinforcing angle section is fixedly arranged at the position of an included angle formed by the end face plate and the first composite layer plate, and an L-shaped reinforcing angle section is fixedly arranged below the position of an included angle formed by the end face plate and the third composite layer plate. According to the composite material double-sandwich board, the two foaming core layers are clamped by the three composite layer boards, so that the composite material double-sandwich board has a good heat preservation effect, the in-plane rigidity can be ensured, and meanwhile, the composite layer boards on the surface can be prevented from being wrinkled, unstable and damaged under internal pressure and overall stress. The end face plates can convert in-plane shear transmitted by the foam core into concentrated loads, and the double-sandwich plate can be connected with a peripheral structure through the end reinforcing angle materials.

The utility model discloses a light vacuum insulated panel which comprises a barrier film bag, a core material and a getter, the core material is a foam core material, the foam core material is packaged in the barrier film bag, and a side accommodating groove is formed in the side part of the foam core material; the getter is arranged in the side containing groove, and the side portion of the getter abuts against the groove bottom of the side containing groove. According to the utility model, the side part of the foam core material is provided with the side accommodating groove, and the getter is arranged in the side accommodating groove, so that during manufacturing, the foam core material and the getter in the side accommodating groove are filled into the barrier film bag, and the opening is vacuumized and heat-sealed to manufacture the light vacuum insulated panel, and the upper surface and the lower surface of the light vacuum insulated panel are flat and smooth; the getter is located on the side portion, and after the vacuum insulation panel is subjected to edge folding, the side portion of the light vacuum insulation panel is flat.

The invention discloses a cap type stringer co-bonding process wallboard core mold and a preparation method thereof, and belongs to the technical field of wallboard core molds. The preparation method comprises the following steps: assembling a foam core mold matched with a cap-shaped stringer cavity in size with an auxiliary material: sequentially laying an isolating membrane, strippable cloth and a tubular vacuum bag from bottom to top, wrapping the tubular vacuum bag with the isolating membrane and fixing the tubular vacuum bag, penetrating the foam core mold into the tubular vacuum bag, and sealing the tubular vacuum bag with the strippable cloth; and the isolating membrane corresponding to one end of the foam core mold is sealed, and the isolating membrane corresponding to the other end of the foam core mold is vacuumized. According to the method, by adjusting the assembly method of the foam core mold and the tubular vacuum bag, the inclusion risk of the tubular vacuum bag is reduced, accurate control over the size of the tubular vacuum bag is achieved, the assembly process of the foam core mold and the stringer is simplified, and the overall cost is reduced. According to the scheme, the complex wallboard co-bonding process can be further optimized, and the production efficiency and the economic benefit are improved while the product quality is ensured.

The invention relates to a composite material foam sandwich mouth-shaped beam compression molding process method and a mold structure, and belongs to the technical field of composite material molding and manufacturing. A composite material foam sandwich mouth-shaped beam compression molding process method comprises the following steps that a layer of glue film is laid on the surface of a foam core, and a sealing system is adopted for sealing; the foam core pasted with the adhesive film and the sealing system are put into a drying oven, and curing is conducted according to the technological parameters of the adhesive film; laying mouth-shaped beam prepreg on the foam core with the cured adhesive film on the surface; putting the mold filled with the square beam semi-finished product blank on a pressing machine heating plate to be heated and pressurized until the mold is closed; paving the rest five layers of prepreg; putting the mouth-shaped beam blank which is paved with the prepreg into a mouth-shaped beam forming mold, closing the upper mold and the lower mold, and putting the mouth-shaped beam blank on a pressing machine heating plate; and after heating curing is completed, the temperature is reduced to 60 DEG C or below, and pressure relief and drawing are conducted. According to the invention, the problem that four surfaces of the mouth-shaped beam are pressed is solved; according to the process method, the lossless qualification rate and the surface quality of the square beam are effectively improved.

A semi-finished light-foam core of multilayered polypropylene boards, in particular sandwiches, comprises a base layer of the light-foam polypropylene core with a thickness of 1 to 100 mm, with a bulk density of 20 to 250 kg / m3, which has a thermoadhesive layer attached on one or both sides with a thickness of 5 to 500 μm based on a polypropylene copolymer with a specific Vicat melting temperature T v in the range of 70 to 150 °C, and / or a seal initiation temperature T SIT in the range of 70 to 140 °C, and / or a melting temperature T m in the range of 100 to 155 °C. The invention further relates to a method of manufacture of this semi-finished product and a sandwich-type polypropylene laminate based on this semi-finished product, which is overlaid on one or both sides thereof with a reinforcing composite layer or layers with a thickness of 0.1 to 10.0 mm and a density of 900 to 2000 kg / m3 based on a polypropylene with a fibrous or particulate filler.

The application relates to a composite material foam sandwich mouth-shaped beam mould pressing forming process method and a mould structure, and belongs to the technical field of composite material forming manufacturing. The composite material foam sandwich mouth-shaped beam mould pressing forming process method comprises the following steps: laying a layer of glue film on the surface of a foam core and sealing by using a sealing system; placing the foam core with the laid glue film and the sealing system into an oven to perform curing according to the process parameters of the glue film; laying mouth-shaped beam prepreg on the foam core with the cured glue film on the surface; placing the mould with the mouth-shaped beam semi-finished blank into a press bed heating plate to heat and press until the mould is closed; completing the laying of the remaining five layers of prepreg; placing the mouth-shaped beam blank with the completed prepreg laying into a mouth-shaped beam forming mould, placing the mould on the press bed heating plate after the upper and lower moulds are closed; after the heating and curing are completed, cooling to below 60 DEG C to release the pressure and take out the mould. The application solves the pressing problem of the four surfaces of the mouth-shaped beam; and the process method effectively improves the loss-free qualified rate and the surface quality of the mouth-shaped beam.

This invention provides a lightweight pallet processing technology, comprising the following steps: 1) foam core molding; 2) attaching a modified PET film to the surface of the foam core; 3) punching vacuum holes in the molded foam board to facilitate air suction during the thermoforming process, helping the modified PET film to adhere to the foam board after adhesive application; 4) high-temperature thermoforming, either in one step or in two stages, with a thermoforming temperature of 260-280℃; 5) attaching an anti-slip and wear-resistant layer; and 6) processing the support legs to obtain a lightweight pallet. The pallet of this invention has high toughness and strength, and can withstand 2 tons of goods without deformation on a single pallet.

A foam-based tape that is applied to the underlying structure at a location or locations where adjacent insulated structural sheathing panels or insulated siding panels meet and form a seam between adjacent edges. The tape may be two-sided, i.e., a foam core with both sides comprising an adhesive layer. The tape is applied to the underlying structure, which may be studs, framing, or an underlying structural sheathing layer, by operation of the adhesive on one side, then the liner on the opposite side is removed prior to installation of the overlaying panels. The overlaying panels are installed so that the seam formed between two adjacent edges lies along the foam tape, and is adhesively secured thereto. The foam core allows for sufficient compressibility of the tape to ensure the tape properly bonds to the underlying structural elements and the overlaying panels.

The large-length-diameter-ratio thin-wall composite material tubular beam manufacturing tool comprises a metal mold and further comprises a foam core mold and a tubular air bag, the tubular air bag is tightly attached to the circumferential outer wall of the foam core mold in a sleeved mode and then integrally arranged in a mold cavity of the metal mold, one axial end of the tubular air bag is closed, and the other axial end of the tubular air bag is open. The open end of the tubular air bag is connected with an inflation connector. When the thin-wall composite material tubular beam with the large length-diameter ratio is prepared by the device, the prepared product is good in straightness, high in dimensional accuracy, smooth in surface and compact in internal structure; the problems that in a conventional metal male mold laying-vacuum bag forming-autoclave curing method for the large-length-diameter-ratio thin-wall composite material tubular beam, demolding is difficult, and due to mold deformation, the product straightness is out of tolerance, and the surface quality is poor are solved.

The invention discloses an embedded thin-film resistor measurement method and system for internal failure of a composite material connection structure, and belongs to the field of composite material structure test measurement. Comprising a typical bolt-glue joint combined structure formed by connecting a composite material upper skin, a middle foam core layer, a composite material lower skin, a composite material upper connecting plate and a composite material lower connecting plate through fastening bolts. A one-way film resistance sensor, a three-way film resistance sensor, a four-way film resistance sensor and a porous medium resistance sensor are embedded in key failure areas such as the periphery of a hole, an interlayer interface and a core-skin interface in advance; and the sensor and the structure are integrated through a vacuum forming process. The integrated test piece is placed on the end support, the loading action cylinder and the pressing strip are used for applying load, all the sensors output resistance change signals in real time, the resistance change signals are transmitted to an external acquisition system through the electric signal wire, and conversion from mechanical signals to electric signals is achieved.

The invention outlines a method for producing large-sized square tubes from composite materials, incorporating a finishing process. This method addresses the need for high-quality square tube products made from composite materials, which must meet stringent requirements for lightweight design, high mechanical strength, and pressure resistance both internally and externally. The process consists of the following steps: step 1: prepare necessary equipment and materials; step 2: wind the inner layers; step 3: wrap the foam core layer over the inner layers; step 4: vacuum press the foam core layer onto the inner layers; step 5: wind the outer layers; step 6: vacuum press and heat to solidify the entire product; step 7: demould and finish the product.

A foam-based tape that is applied to the underlying structure at a location or locations where adjacent insulated structural sheathing panels or insulated siding panels meet and form a seam between adjacent edges. The tape may be two-sided, i.e., a foam core with both sides comprising an adhesive layer. The tape is applied to the underlying structure, which may be studs, framing, or an underlying structural sheathing layer, by operation of the adhesive on one side, then the liner on the opposite side is removed prior to installation of the overlaying panels. The overlaying panels are installed so that the seam formed between two adjacent edges lies along the foam tape, and is adhesively secured thereto. The foam core allows for sufficient compressibility of the tape to ensure the tape properly bonds to the underlying structural elements and the overlaying panels.

A packaging box is designed with a round box structure suitable for various applications across multiple industries. Constructed from durable materials, it accommodates a variety of contents. The box features a plurality of lids and walls, with lids made from foam core and walls crafted from polystyrene, providing a lightweight yet robust structure. The surface of the box can be custom printed with logos, designs, or brand messages, offering flexibility for custom branding and size adjustments. The round box structure is assembled by sealing both ends of the polystyrene with foam tape, ensuring stability and longevity. This packaging solution meets both functional and aesthetic demands, distinguishing manufacturers as leaders in innovative promotional packaging.

Wall structures include: a wall frame made from a plurality of studs or other structural elements and optionally wall sheathing; first lightweight composite panels fastened to the wall frame to form a first wall substructure; and lightweight composite panels fastened to the wall frame to form a second wall substructure opposite the first. A complete wall can have an interior wall and exterior wall, two interior walls, or two exterior walls. Interior walls may include lightweight composite panels having a polymer, plaster, or paper show surface. Exterior walls may include lightweight composite panels with exterior finish, such as stucco, brick veneers, tiles, or stone. Lightweight composite panels are fastened to the sheathing and / or studs by screws, other mechanical fasteners, and / or adhesive. Lightweight composite panels include a foam core and fiber mesh reinforced cementitious (or other protective) layers formed on the foam core. Joints between adjacent panels are sealed using sealing tape, mesh tape and a seam coat, polyurethane foam, and / or other sealants.

The utility model discloses an automatic cutting device for a preformed foam inner core of an aero seat. The automatic cutting device comprises a rack, the forming frame is arranged on the rack, and the interior of the forming frame can be connected with a foam plate; the driving mechanism is arranged on the rack; the cutting mechanism is connected to the output end of the driving mechanism and comprises a thermal fuse, and the thermal fuse is attached to the outer wall of the forming frame; and the cutting mechanism is driven by the driving mechanism to keep reciprocating motion, so that the thermal fuse is attached to the outer wall of the forming frame to move. According to the automatic cutting device for the preformed foam inner core of the aero seat, the cutting mechanism is driven by the driving mechanism to keep sliding, so that the thermal fuse on the cutting mechanism moves along the forming frame, the thermal fuse abuts against a foam board connected with the interior of the forming frame in the moving process, the foam board is cut into the shape of the edge of the forming frame, and the cutting efficiency is improved. According to the cutting device, a foam plate in a special shape can be preliminarily cut, so that subsequent secondary cutting is facilitated, and the production efficiency of producing a foam core material in a special shape can be improved.

The invention discloses a light fireproof sound-insulation composite sandwich panel and a preparation method thereof. The light fireproof and sound-insulation composite sandwich board sequentially comprises an upper galvanized steel sheet layer, an aluminum silicate wool layer, a rare earth reinforced phenolic fireproof foam board and a lower galvanized steel sheet layer from top to bottom, and the rare earth reinforced phenolic fireproof foam board is composed of a rare earth reinforced phenolic fireproof foam core layer, an upper cement-based aluminum silicate wool layer and a lower cement-based aluminum silicate wool layer. All the layers of materials are bonded through a Portland cement-based adhesive. The low thermal conductivity of the aluminum silicate wool is utilized to further improve the fire resistance of the rare earth reinforced phenolic aldehyde fireproof foam board, and the performance is optimized by adjusting the thickness of the panel. The composite sandwich board can achieve A60 fire resistance, meanwhile, the mechanical performance is greatly improved, and the composite sandwich board has wide application prospects in ship and building sandwich board materials and the like.