119 results about "Fibre reinforcement" patented technology

The utility model relates to the technical field of pipe production, especially a PVC fiber reinforced hose anti -slip traction device, its in the process of pipe conveying, through two sets of limiting mechanism to pipe front and back limiting, has prevented pipe before and after slip in the conveying process, has improved the stability in the pipe conveying process, convenient to use, and the practicality is high, including belt conveyor, is provided with the conveyer belt on the belt conveyor, still include elevating system and two sets of limiting mechanism, two sets of limiting mechanism all are located the below of conveyer belt, two sets of limiting mechanism are symmetrical before and after, and the limiting mechanism has the function of limiting, and the belt conveyor is installed on elevating system, and elevating system is used for the belt conveyor elevating.

This invention discloses a carbon fiber reinforced self-healing sensing integrated special cable and its preparation method, belonging to the technical field of power cable insulation materials and special cable manufacturing. The cable, from the inside out, includes a conductor, an inner shielding layer, a self-healing insulation layer, a reinforced outer shielding layer, a distributed optical fiber sensing layer, and a sheath layer. The self-healing insulation layer employs a dual dynamic covalent network and a biomimetic intelligent microcapsule composite system to achieve rapid response and multiple repairs. The reinforced outer shielding layer is a semi-conductive ethylene propylene rubber composite material reinforced with short-cut carbon fibers, forming a three-dimensional stress transfer network to enhance mechanical strength. The distributed optical fiber sensing layer enables temperature strain monitoring and damage localization. This invention constructs an integrated protection system combining physical prevention, precise repair, long-term self-healing, and intelligent sensing. The repair response time is no more than 12 hours, the repair rate is no less than 95%, the electrical tree inhibition rate is no less than 90%, and it can be repaired multiple times, adapting to the complex working conditions of high-end equipment.

A roof structure (10) for a vehicle roof is provided. The roof structure comprises structural members (22-1, 22-2, 22-3, 22-4, 22-4) arranged to define all or part of a roof opening corresponding to a roof panel opening (12) in the vehicle roof, the structural members overlapping along at least part of a periphery of the roof opening, the structural members being joined by a form bond, the structural members comprising a fibre-reinforced thermoplastic composite material.

The utility model discloses steam turbine high pressure cylinder and medium pressure cylinder shaft seal body outer cylinder body spraying heat insulation material heat preservation structure, including base layer, main heat insulation layer, transition layer, ceramic fiber suture line layer, anchor nail, heat reflection layer, ceramic fiber reinforced layer and protective surface layer. Base layer adopts nanometer silane interface agent to spray on the surface of cylinder body, and main heat insulation layer is nanocrystalline composite heat insulation material, and transition layer is composed of metal base layer, ceramic base layer and organic composite base layer, and the multiple suture lines of ceramic fiber suture line layer are orthogonal grid inlay in the surface of main heat insulation layer, and anchor nail top is equipped with barb structure and root installs elastic silicone rubber gasket, and heat reflection layer is the aluminum foil that etches nanometer level groove and is equipped with wave embossing, and ceramic fiber reinforced layer is sealedly installed paraffin, and protective surface layer adopts organic silicon modified acrylic resin material. The structure has solved the problems of easy cracking of heat insulation layer, easy breaking of heat preservation material, unreasonable shaft seal heat preservation and oil touch flammable etc, and has improved heat preservation performance, structural stability and safety.

The utility model belongs to the field of thermoplastic composite material, specifically discloses a paddle. The utility model's paddle uses short fiber reinforced resin as the outer skin, and the core material formed by the cooperation of the inside continuous fiber reinforced unidirectional tape forms the multi-scale fiber reinforced interface at the interface of the outer skin and the core material, improves the high and low temperature impact resistance of the paddle, reduces the risk of low temperature brittle fracture, enhances the interface bonding force of the paddle core material and the outer skin, reduces the influence of interlayer shrinkage stress, reduces the risk such as interface delamination, bulging and paddle deformation, and improves the mounting of the paddle.

A battery box according to the present invention includes a battery cover, a battery tray, and a sealing material that is provided in a proximity region in which the battery cover and the battery tray are close to each other and closes a gap between the battery cover and the battery tray. At least one of the battery cover and the battery tray is a fiber-reinforced plastic that includes discontinuous reinforcing fibers and a thermoplastic resin.　The battery box satisfies expression (1).　Expression (1): t1×E>t1+t2. In expression (1), t1 is the thickness of the fiber-reinforced plastic in the proximity region, t2 is the clearance between the battery cover and the battery tray in the proximity region, and E is the expansion coefficient of the thickness of the fiber-reinforced plastic 600 seconds after the surface of the fiber-reinforced plastic is brought into contact with the flame of a burner such that the flame front is at 950°C–1000°C relative to the thickness of the fiber-reinforced plastic before contact with the flame.

The present application is to provide a method of molding a fiber reinforced resin impeller and a method of molding a fiber reinforced resin gear, which can monitor in real time.In the method of molding the fiber reinforced resin impeller in which fiber reinforced resin is injected from a plurality of gates of a metal mold to mold the fiber reinforced resin impeller which includes a drum and a plurality of blade portions arranged on the outer circumference of the drum, the temperatures of resin are measured by temperature sensors arranged near a plurality of gate portions of the metal mold which correspond to the blade portions; rise timings are measured per one time of temperature waveforms collected by the temperature sensor; and the respective rise timings of the temperature sensors are compared and monitored.

This invention discloses an impact-resistant photovoltaic encapsulating film, its preparation method, and a photovoltaic module. The photovoltaic encapsulating film comprises multiple layers of unidirectional prepreg tape laminated together. The unidirectional prepreg tape is obtained by melt impregnation of thermoplastic resin and continuous fibers surface-treated with a coupling agent. The thermoplastic resin includes polyolefin elastomer (POE) and POE grafts. During the melt impregnation process, the continuous fibers surface-treated with the coupling agent and the POE grafts undergo a chemical reaction to achieve compatibility. This invention employs a pre-melt impregnation followed by crosslinking technique. The uncrosslinked POE resin has good fluidity and can be fully melt-impregnated with the continuous fibers. Electron beam irradiation post-treatment technology allows the impregnated base film to undergo a crosslinking reaction, resulting in a fiber-reinforced impact-resistant photovoltaic encapsulating film. The film prepared by this invention meets industry technical standards for UV resistance, aging resistance, and impact resistance, while also being low-cost and simple to manufacture, making it widely applicable in the field of lightweight flexible photovoltaic modules.

The present disclosure relates to a wind turbine blade part for a wind turbine blade, the wind turbine blade part comprising a metal mesh layer comprising a plurality of apertures, at least a first fibre-reinforced layer comprising a plurality of first electrically conductive fibres, and a plurality of second electrically conductive fibres. At least a number of the plurality of second electrically conductive fibres extend transversely through the plurality of apertures of the metal mesh layer so as to electrically connect the at least first fibre-reinforced layer with the metal mesh layer.

This display device may comprise: a plurality of display modules, at least some of which include a substrate and a plurality of inorganic light-emitting devices mounted on the substrate; and a frame for supporting the plurality of display modules such that the plurality of display modules are horizontally arranged in an M*N matrix. The frame may comprise: a glass core layer; a first fiber-reinforced layer formed on a first surface of the glass core layer and configured to face the substrates of the plurality of display modules; and a second fiber-reinforced layer formed on a second surface, which is the surface opposite to the first surface of the glass core layer.

The application discloses a wing, rib and skin integrated forming auxiliary wing mold and a forming control method thereof, and belongs to the technical field of unmanned aerial vehicle composite auxiliary wings, and comprises an upper mold and a lower mold, characterized in that a forming surface of the upper mold is matched with a cavity surface of the lower mold, and a three-dimensional closed auxiliary wing cavity for overall forming of the auxiliary wing is formed after the mold is closed; the auxiliary wing cavity comprises a main beam cavity platform extending along the length direction of the auxiliary wing, a plurality of rib cavity platforms arranged at intervals with the main beam cavity platform and arranged in a vertical direction, and a continuous skin transition curved surface connecting the main beam cavity platform and the rib cavity platform; and a plurality of glue injection ports and exhaust ports in communication with the auxiliary wing cavity are arranged on the lower mold. The application can complete overall manufacturing of the auxiliary wing in one forming process, significantly reduces assembly links, and the formed product has a continuous fiber reinforced overall structure, no mechanical connection holes, uniform stress distribution, and significantly improved structural strength and service life.

The application aims to provide a generation method and system of a fiber reinforced recycled concrete three-dimensional mesoscopic model based on Boolean operation, mainly considering the influence of the gradation, shape, replacement rate and old mortar content of recycled coarse aggregate and the influence of the shape, characteristic parameter and unit type of fiber. Meanwhile, the Boolean operation is used to perform collision test on the aggregate and fiber, to quickly generate a fiber reinforced recycled concrete three-dimensional mesoscopic random aggregate model, which can be effectively used to simulate the real damage characteristics of recycled concrete. The method comprises the following steps: step 1, generating a matrix under a given shape; step 2, generating coarse aggregate under a random shape and a given gradation; step 3, generating old mortar on the surface of the coarse aggregate to form recycled coarse aggregate; and step 4, generating fiber under a given shape, characteristic parameter and unit type.

Ultrafast Joule heating synthesis methods and systems, and more particularly, ultrafast flash Joule heating upcycling of fiber reinforced plastics (such as waste fiber reinforced plastics, glass fiber reinforced plastics, carbon fiber reinforced plastics, and / or quartz fiber reinforced plastics) and materials including fiber reinforced plastics (such as reinforced metal laminates including glass reinforced aluminum laminates and other glass reinforced metal laminates) to phase-controllable silicon carbide (SiC). Further, ultrafast Joule heating synthesis methods and systems for synthesis include SiC fibers / fibrils (such as SiC nanowires), SiC nanowires, and SiC-containing polymer composites, as well as B4C nanowires.

The application discloses a large-span high-rise building fiber reinforced cement removable formwork, and belongs to the technical field of building engineering formwork, which comprises a fiber reinforced cement connecting formwork, the front and back sides of the fiber reinforced cement connecting formwork are respectively provided with a plug-in groove and a plug-in block, the size of the plug-in block is matched with the plug-in groove, the plug-in block is plugged into the inside of the plug-in groove, one side of the fiber reinforced cement connecting formwork is provided with a sliding strip, and the other side of the fiber reinforced cement connecting formwork is provided with a sliding groove; when the application is used, the installation of the formwork can be quickly completed; compared with wooden formwork and steel formwork, the fiber reinforced cement connecting formwork has the characteristics of good light weight and high strength, is removable in the subsequent process, is convenient to use, does not need to be disassembled, the traditional wooden formwork and steel formwork have the problems of low construction efficiency and serious material waste in large-span high-rise buildings, and the application is more convenient to use and improves the practicability of the device.

The invention relates to a vehicle underbody protection element (10) for a battery energy store (12) of an at least partially electrically driven motor vehicle (200), comprising a core piece (14) of flat design made of a thermoplastic first plastic material, at least one lower cover layer (16u) and at least one upper cover layer (16t) made of a fiber-reinforced, thermoplastic second plastic material, a plurality of rib-like support elements (18) protruding from the uppermost cover layer (16t) for supporting the vehicle underbody protection element (10) at the battery energy store (12). It is proposed that at least one plate element (20) made of metal is arranged between the upper cover layer (16t) and the core piece (14) and / or between the lower cover layer (16u) and the core piece (14), which plate element is oriented along adjacent support elements (18). Furthermore, the invention relates to a battery energy store (12) and to a motor vehicle (200).

To provide a flat lightweight member having mechanical properties of end portions, excellent adhesion between a core layer and skin layers, good appearance quality, and excellent productivity, the flat lightweight member is characterized by having: skin layers arranged on both surfaces of the flat lightweight member, an end portion reinforcing layer arranged at an end portion of the flat lightweight member so as to be in contact with both inner surfaces of the skin layers of the both surfaces, and a core layer arranged in a space surrounded by the skin layers and the end portion reinforcing layer so as to be in direct contact with inner surfaces of the skin layers, the skin layers including one or more layers containing reinforcing fibers aligned in one direction and a first base resin, the end portion reinforcing layer containing a fiber-reinforced resin sheet, and the core layer containing thermally expandable particles and a second base resin.

An outer member, an inner member, and an inside fixing member overlap each other and fastened together by a fastening member. The outer member is made of fiber reinforced resin, and fibers contained in the fiber reinforced resin-made outer member are arranged in a direction crossing the above-described overlapping direction. A bolt of the fastening member comprises a conical (truncated cone-shaped) middle portion which is poisoned between a head portion and a shaft portion. In a case where the outer member and the bolt are offset from each other in a radial direction of a through hole of the outer member, the conical middle portion partially contacts an edge portion of the through hole and compress a contacted portion of the outer member in the overlapping direction.

This utility model discloses a fiber-reinforced composite concrete protective and airtight cover for underground utility tunnels, relating to the technical field of underground utility tunnel cover plates. It includes a cover plate support with a groove on its upper surface. A concrete cover plate body is placed inside the groove. The concrete cover plate body includes a protective frame, multiple transverse support ribs, multiple longitudinal support ribs, a heat insulation layer, a composite concrete layer, and an electromagnetic shielding layer. Each transverse support rib is horizontally fixedly connected to the inside of the protective frame, and each longitudinal support rib is vertically fixedly connected to the inside of the protective frame. This utility model uses high-strength steel for the protective frame, combined with a crisscrossing steel reinforcement skeleton (transverse and longitudinal support ribs), and then welds it to form a rigid frame. This effectively disperses the load generated by vehicle traffic or pedestrian trampling, preventing stress concentration that could lead to concrete cracking.

The utility model relates to the technical fields of mixing equipment especially to a PVC fiber reinforced hose raw material mixing and stirring device, which can realize bidirectional mixing and stirring, improve the mixing effect and efficiency of raw materials, has simple overall structure, convenient operation and strong practicality, and comprises a mixing cylinder, a discharge pipe, a discharge valve, a supporting part, a stirring part and a transverse stirring part, the supporting part is installed at the bottom of the mixing cylinder to support the equipment, the discharge pipe is installed at the bottom end of the mixing cylinder, the discharge valve is installed on the discharge pipe, the stirring part is installed inside the mixing cylinder, the transverse stirring part is installed inside the mixing cylinder, and the input end of the transverse stirring part is connected with the stirring part.

The application provides a continuous fiber reinforced thermoplastic resin composite plate and a preparation method thereof. The continuous fiber reinforced thermoplastic resin composite plate is configured to be formed by at least one preformed plate body through a hot pressing process. The preformed plate body is formed by continuously rotating arrangement of continuous fiber reinforced filaments. The preformed plate body comprises first continuous fiber reinforced filament sections and second continuous fiber reinforced filament sections which are alternately arranged along a third direction. The extending directions of the first continuous fiber reinforced filament sections and the second continuous fiber reinforced filament sections are opposite. A first rotation section is connected between the tail end of the first continuous fiber reinforced filament section and the second continuous fiber reinforced filament section. A second rotation section is connected between the tail end of the second continuous fiber reinforced filament section and the head end of the first continuous fiber reinforced filament section. The continuous fiber reinforced thermoplastic resin composite plate is prepared by a non-woven method, and the process is simple and the cost is reduced.

A continuous fiber reinforced co-extrusion die, a molding line body and a fiber reinforced foamed floor are provided. The die includes a die body, front and rear endfaces of which are respectively a mixing extrusion surface and a core material feeding surface. One side face of the die body has a shell material feeding inlet. The die body is provided thereinside with a core material supply channel penetrating through the mixing extrusion surface and the core material feeding surface; a shell material supply cavity surrounding the core material supply channel; and two arc-shaped curved fiber channels symmetrically arranged vertically respectively. The molding line body includes a continuous fiber reinforced co-extrusion die, a core material extruder and a shell material extruder; and a shaping module, a vacuum water cooling group, an open water cooling group and a traction machine are arranged on the mixing extrusion surface of the die body.

A skid plate (10) for a battery storage arrangement (12) of a motor vehicle (200) that is at least partially electrically powered is described. The skid plate comprises a planar core element (14) made of a first thermoplastic material; at least one lower and at least one upper cover layer (16u, 16t) made of a second fiber-reinforced thermoplastic material; and several rib-like support elements (18) projecting from an uppermost cover layer (16t) for supporting the skid plate (10) on the battery storage arrangement (12). It is provided that at least one metal sheet element (20) is arranged between the upper cover layer (16t) and the core element (14) and / or between the lower cover layer (16u) and the core element (14), the metal sheet element being aligned along an adjacent support element (18). A battery storage arrangement (12) and a motor vehicle (200) are also described.

The present application belongs to the technical field of high-performance metal matrix composites, and particularly relates to a SiC fiber reinforced metal matrix composite sample with controllable fiber fracture defects and a preparation method and application thereof. The preparation method of the sample comprises the following steps: (1) taking a SiC fiber reinforced metal matrix composite precursor filament; (2) making the precursor filaments axially parallel to each other and adhering and fixing them with an adhesive to obtain a precursor filament bundle, and then loading the precursor filament bundle into an alloy sheath; (3) plugging the two ends of the alloy sheath with plugs; and (4) performing hot isostatic pressing. According to a preset defect proportion, a defect distribution plane and a defect distribution mode, the present application calculates the cutting quantity, cutting position and distribution mode of the composite precursor filament sample. The present application changes the common fiber fracture defect phenomenon in the composite from a passive problem that needs to be avoided in the traditional way into an independent research variable that can be actively designed and controlled, and establishes a new type of "preformed defect" experimental method.

To provide a lightweight fiber-reinforced molded body. [Solution] A method for producing a fiber-reinforced molded article, comprising the steps of: preparing a mixture containing a first polymerizable monomer, a hydrocarbon solvent, a dispersion stabilizer, and an aqueous medium; preparing a suspension by suspending the mixture; and subjecting the suspension to a polymerization reaction, wherein the mixture contains a crosslinkable monomer as the first polymerizable monomer, the content of the crosslinkable monomer in 100 parts by mass of the first polymerizable monomer is 80 parts by mass or more, and when the polymerization conversion rate of the first polymerizable monomer reaches 93% by mass or more, a second polymerizable monomer having a solubility of 0.3 g / L or more in distilled water at 20°C is added and subjected to a further polymerization reaction to produce hollow particles; preparing a resin composition containing the obtained hollow particles, a matrix resin, and a solvent; and impregnating reinforcing fibers with the resin composition.

This invention discloses a biomass fiber-reinforced biodegradable polyurethane foam packaging material and its preparation method, belonging to the field of new energy packaging materials and preparation technology. The biomass fiber-reinforced biodegradable polyurethane foam packaging material of this invention comprises the following components by weight: 40-60 parts of biodegradable polyurethane prepolymer, 20-35 parts of composite modified biomass fiber, 3-8 parts of foaming agent, 5-12 parts of flame retardant additive, 1-3 parts of crosslinking agent, 0.5-1.5 parts of anti-aging agent, 0.3-1 part of release agent, and 1-2 parts of water. During the preparation of the biodegradable polyurethane prepolymer, 0.1-0.3% of nano-zinc oxide catalyst by weight of the prepolymer is added, which increases the catalytic efficiency by more than 25%, shortens the prepolymerization reaction time by 30%, thereby improving the stability of the prepolymer, avoiding shrinkage defects during later foaming, and preventing the release of toxic and harmful substances. This solves the technical problems of poor environmental performance and difficulty in synergistically combining mechanical strength and cushioning performance in existing new energy packaging materials.

This proposal proposes power tools with less deterioration over time and a longer service life by using a combination of metal gears with superior physical properties and resin gears in the gear configuration that serves as the power transmission mechanism for power tools such as polishers and sanders. This reduces the amount of wear particles generated by the meshing of gear teeth, resulting in a more efficient power tool. [Solution] An electric power tool equipped with a power transmission mechanism 1 having a gear configuration consisting of an output gear 4 attached to the output shaft 3 of an armature 2, a final gear 8 attached to a spindle 9 for mounting a turntable, and an intermediate gear assembly 5 connecting the output gear 4 and the final gear 8, wherein the output gear 4 is a metal gear, and at least some of the gears in the intermediate gear assembly 5 are made of aramid fiber reinforced resin.

The application discloses a ceramic matrix composite connecting fastener and a preparation method thereof. The ceramic matrix composite connecting fastener comprises a fixed part and a connecting part. The upper end of the fixed part is connected with the lower end of the connecting part. The fixed part comprises a fixed part cavity, a fixed part connecting layer and a fixed part base which are sequentially arranged from outside to inside. The ceramic matrix composite connecting fastener can solve the problems of fracture and damage of the ceramic matrix composite connecting fastener when the temperature greatly changes, and the problems of easy oxidation, brittleness and damage of the ceramic matrix composite connecting fastener when the temperature is at 800-1000 DEG C for a long time, so that the carbon fiber reinforced silicon carbide ceramic matrix composite connecting fastener can be used for a long time under the service condition of a wide temperature range.

This invention relates to the field of railway track engineering technology, specifically a self-sensing monitoring sleeper, comprising a concrete matrix; a reinforcing rib mechanism embedded within the concrete matrix; the reinforcing rib mechanism including longitudinally arranged prestressed tendons and transversely arranged stirrups; both the prestressed tendons and stirrups include a composite support layer and a monitoring component, with the monitoring component embedded within the composite support layer; the beneficial effect of this invention is that by embedding an integrated intelligent rib formed of fiber-reinforced polymer composite into the prestressed tendons and stirrups of the sleeper, and integrating fiber optic wires with fiber optic gratings inscribed inside, in-situ, long-term, and stable monitoring of the stress state and temperature field of the sleeper structure is achieved.

This invention discloses a non-contact pneumatic layup device for fiber-reinforced metal laminates, comprising: a machine base with a movable component mounted on its bottom; a spatial moving mechanism mounted on the top of the machine base, with a mounting base mounted on the spatial moving mechanism; a mounting frame mounted on the bottom of the mounting base, the mounting frame being a ring structure; several telescopic arms, arranged in groups, with the telescopic arms fixedly connected to the mounting frame at equal intervals around their circumference, and each end of the telescopic arm being equipped with an openable gripper; and an air jet mechanism mounted in the middle of the mounting frame; wherein a positioning platform is mounted on the top surface of the machine base, and the mounting frame and the positioning platform are correspondingly positioned. This invention uses telescopic arms in conjunction with openable grippers for prepreg layup, reducing the difficulty of manual operation and improving work efficiency.

The present application relates to a kind of flexible graphene-based self-sensing fiber reinforced fabric and preparation method and construction method, belong to civil engineering structure reinforcement and structural health monitoring technical field.The fabric includes non-monitoring area and monitoring area;Non-monitoring area is continuous fiber reinforced fabric, and monitoring area uses sandwich laminated structure.The laminated structure includes successively continuous fiber reinforced fabric layer integrated with non-monitoring area, graphene-based sensing layer and encapsulation layer;After electrode is set at both ends of graphene-based sensing layer, electrical signal can be exported, and real-time monitoring can be realized under complex working conditions such as large strain and curved surface reinforcement.The fabric keeps the mechanical property of traditional fiber reinforced fabric while realizing long-term stable in-situ monitoring using graphene conductive network, and has weather resistance and sensitivity advantage.Preparation process and construction process are simple and can be implemented, suitable for the reinforcement and full life cycle health monitoring of bridge and building and other engineering structures.