22 results about "Foamcore" patented technology

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.

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 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 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.

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 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.

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 application provides a method for manufacturing life buoy foam core and relates to the technical field of life buoy foam manufacturing, which comprises a total support, two fixed frames are fixedly installed on the upper surface of the total support, four guide rails are fixedly installed on the side close to each other of the two fixed frames, a first mold and a second mold are slidably installed on the surface of the four guide rails, a mounting frame is fixedly installed on the upper surface of the total support, a discharging tank is fixedly installed on the inner wall of the mounting frame, a discharging pipe is communicated between the discharging tank and the second mold, and a screening device is arranged on the discharging tank. The screening device is arranged to facilitate the screening of the slag and debris in the raw materials by using a screen frame, to reduce the EPP raw materials with small particles in the EPP raw materials, to increase the production density of the products by directly mixing the raw material slag into the product raw materials, to increase the product manufacturing quality, and to improve the efficiency of the life buoy foam core manufacturing to a certain extent.

The invention relates to the technical field of composite materials, in particular to a wing integrated forming process which comprises the steps of mold treatment, prepreg blanking, skeleton connection, foam processing, part paving, skeleton placement, foam filling, skin coating, mold closing, heating curing and wing demolding, all parts of a wing skeleton are connected into an integral skeleton, a foam core is used for filling, and the integral wing skeleton is formed. After the skin is wrapped in the forming die, the whole forming die is placed into the oven to be cured, the forming face of the forming die directly corresponds to the profile contour of the wing, and the technical problems that in the prior art, the wing manufacturing process is high in cost and low in efficiency, and the profile contour precision of a finished product is not ideal are solved.