899 results about "Fibre reinforcement" patented technology

The invention discloses basalt fiber reinforced anti-crack road concrete and a preparation method thereof, and belongs to the technical field of concrete preparation, and the preparation method specifically comprises the following steps: transferring a concrete precursor into a mold, transferring the mold to a vibration table, vibrating for 1-2 minutes, scraping the raised part of the surface by using a scraper, covering the surface of the material with a preservative film, and drying to obtain the basalt fiber reinforced anti-crack road concrete. Performing post-treatment to obtain the anti-crack concrete. The preparation method comprises the following steps: cleaning basalt fibers, activating, carrying out surface modification, curing to obtain composite basalt fibers, hydrolyzing a borosilicate monomer to prepare modified borosilane with a double-bond structure, converting the double-bond structure into an epoxy group through an epoxidation reaction to obtain a modified curing agent, and preparing the composite basalt fibers by using the modified curing agent and the modified borosilane as additives. And mixing with cement and other materials to obtain the wear-resistant, fracture-resistant and corrosion-resistant anti-crack concrete.

The invention discloses a concrete anti-cracking method and system based on fiber reinforcement, and belongs to the technical field of concrete anti-cracking. The method comprises the following steps: acquiring real-time strain data in concrete through a distributed optical fiber sensor; analyzing the data to obtain a three-dimensional crack propagation path containing a crack initiation position, a propagation angle and a tip position; identifying the dominant development direction of the crack and a fan-shaped potential expansion interval which extends at an expansion angle by taking the tip as a vertex based on the path data; in the potential expansion interval of the to-be-poured area, a fiber distribution layer arranged in the dominant development direction is formed through directional arrangement equipment; and the fiber-reinforced anti-cracking structure is formed through vibrating and compacting treatment. According to the invention, directional blocking of fibers to crack expansion is realized, the problem of disordered expansion of cracks is effectively solved, and the anti-cracking efficiency of concrete is improved.

The invention discloses a high-viscosity silicone rubber composite material and a preparation method thereof.The preparation method comprises the steps that a silicon-based polymerization solution and a silane raw material are mixed on the basis of a rotary dropper, and a silicon-based liquid compound containing a spiral laminated layer is obtained; the preparation method comprises the following steps: dispersing a nano-filler into a silicon-based liquid compound for synthesis treatment, carrying out crosslinking treatment on the obtained primary compound and peroxide to obtain a crosslinked compound, mixing the crosslinked compound with a fiber compound, and carrying out plasma treatment to obtain a fiber-reinforced compound; performing secondary cross-linking treatment on the fiber reinforced compound and a peroxide silicone oil solution in a vacuum high-temperature environment to obtain a secondary cross-linked compound; and immersing the secondary cross-linked compound into a turbid liquid containing nano aluminum oxide, and carrying out heating treatment to obtain a finished product of the high-viscosity silicone rubber composite material. According to the invention, the problem of compatibility between the filler and the matrix material is solved, the processability is improved, and the performance of the material in multiple aspects such as high temperature resistance and aging resistance is further improved.

A fiber reinforced laminate pipe joint can include a first pipe, a second pipe, where the first pipe and the second pipe can be fiber reinforced laminate pipes, and a pipe joint insert. The pipe joint insert can be partially inserted inside the first pipe and can be partially inserted inside the second pipe. The pipe joint insert can be bonded to the first pipe and the second pipe, where the pipe joint insert can include a fiber reinforced laminate, where a bonding agent in the fiber reinforced laminate of the pipe joint insert can be distinct from a bonding agent used to bond the pipe joint insert to the first pipe.

The invention discloses an intelligent manufacturing system and process for a corrugated steel cylinder fiber reinforced pipe structure, and relates to the technical field of industrial automatic control, the system comprises a real-time monitoring module used for monitoring the machining quality of a plurality of procedures, a central processing module used for carrying out instantaneous analysis on data of the real-time monitoring module and generating a regulation and control instruction, and a processing module used for processing the regulation and control instruction. On the basis of data collected by the real-time monitoring module and output of the central processing module, closed-loop control over the whole process from data collection and analysis to equipment adjustment is achieved, it is ensured that the quality parameters of all procedures are stabilized within the qualified range, and therefore the precision, high efficiency and intelligentization of the pipe manufacturing process are achieved; the problems that in the production process, manual control is dominant, all manufacturing procedures are relatively independent, and effective integration and collaboration are lacked are effectively solved.

The invention provides a method and system for reinforcing a tunnel based on a fiber reinforced cement-based composite material, and relates to the technical field of tunnel repair, and the method comprises the following steps: obtaining tunnel surface stress data information and three-dimensional point cloud data thereof; and inputting the stress data information into a preset damage judgment model to determine a tunnel damage area. And applying the damage area information to a damage expansion trend prediction model to obtain a future damage development trend. And preprocessing the three-dimensional point cloud data, and extracting damage features of the tunnel, including deformation and crack features. Damage features are analyzed and evaluated through the multi-scale fractal dimension, and reinforcement position analysis is carried out in combination with fractal dimension values of the damage features, damage area information and an extension trend prediction result. And generating a reinforcement scheme based on the to-be-reinforced position information and the historical reinforcement scheme, and finally determining a reinforcement scheme of the tunnel by using the fiber-reinforced cement-based composite material. The method effectively improves the safety and durability of the tunnel.

In order to solve the problems that an existing stretchable circuit board is large in impedance and short in service life, the stretchable circuit board comprises an elastic substrate and an elastic packaging layer, the elastic packaging layer covers the surface of one side of the elastic substrate, and the elastic packaging layer covers the surface of the other side of the elastic substrate. A fiber reinforcement area is formed on one side, facing the elastic packaging layer, of the elastic substrate, a glass fiber layer penetrating through the elastic substrate is arranged in the fiber reinforcement area, a line groove is formed in the fiber reinforcement area, the glass fiber layer partially penetrates through the line groove, the line groove is filled with a liquid metal coating, and the liquid metal coating is arranged on the elastic substrate. And a circuit pattern is formed by the liquid metal coating in the circuit groove.

A structural component serves as a container for a vehicle. The structural component comprises a trough-shaped container section, an edge region, and fastening elements that are provided in the edge region. The container section forms a compartment and defines a bottom region and two or more wall regions, which are at least sectionally inclined with respect to the bottom region. The two or more wall regions are arranged between the bottom region and the edge region. The fastening elements are arranged and distributed around the container section. The container section and the edge region are formed of an injection moldable fiber reinforced thermoplastic material. The structural component at least sectionally has a porous internal structure that is formed by foaming the thermoplastic material.

The utility model relates to the field of new energy, and discloses a battery bottom protection plate which comprises an impact release layer, a first fiber reinforced resin layer, a metal layer, an impact absorption layer and a second fiber reinforced resin layer, and the first fiber reinforced resin layer, the metal layer and the second fiber reinforced resin layer are all arranged between the impact release layer and the impact absorption layer. And the impact release layer, the first fiber reinforced resin layer, the metal layer, the second fiber reinforced resin layer and the impact absorption layer are laminated. The battery bottom guard plate has the beneficial effects that the battery bottom guard plate adopts the design concept of gradient energy absorption and has high impact resistance, and meanwhile, the multi-layer composite structure can be produced in different processes, so that the heat dissipation between layers is reduced, the interface bonding force is improved, the reliability of the bottom guard plate is improved, the protection function of the bottom guard plate is ensured, and the service life of the bottom guard plate is prolonged. And the battery pack can be well protected.

The invention relates to the technical field of composite pipelines, in particular to a continuous fiber winding reinforced polyethylene composite pipe and a preparation method of the continuous fiber winding reinforced polyethylene composite pipe. The fiber reinforced layer is wound on the inner-layer polyethylene pipe, the outer polyethylene protective layer is wound outside the fiber reinforced layer, and the outer reinforced pipe is wound on the surface of the outer polyethylene protective layer. The continuous fiber winding reinforced polyethylene composite pipe prepared by the invention has excellent flexibility, the production process is simple, the production efficiency is high, and all production procedures of multi-layer compounding can be realized through one station.

The invention discloses a composite material barrel shell, a spliced buoy and a floating mat structure, the composite material barrel shell comprises a barrel shell body which is continuously formed by adopting a fiber reinforced material through a pultrusion process, and a mounting plane of a plane structure is formed at the top of the barrel shell body; the two sides, in the width direction of the barrel shell body, of the installation plane protrude to form installation turned-over edges. The spliced buoy comprises a plurality of composite barrel shells and spliced plugs, and barrel shell bodies are linearly arranged in the length direction. Due to the fact that the whole top face of the barrel shell body is the installation plane of the plane structure, assembling connection with an upper structure is facilitated, all the installation planes and the installation turnups can support the upper structure, and the splicing type floating barrel can be conveniently and flexibly spliced to obtain the splicing type floating barrel with the needed length according to actual requirements. And meanwhile, the splicing operation is simple, and the splicing efficiency is high. The floating mat structure can be used as various water platforms and is good in universality, high in structural strength and good in weather resistance.

The invention relates to the technical field of mechanical parts, and discloses a high-bearing engineering plastic worm gear applied to a light truck electric power steering system and a manufacturing process, and the manufacturing process comprises the following steps: pretreatment of a polymer base material, preparation of a composite reinforcing material, preparation of an injection molding raw material, precise injection molding, post-treatment and detection. After a polymer base material is subjected to fluorination activation treatment, the surface energy of the material is reduced, the interfacial compatibility with a composite reinforced material is enhanced, and through the synergistic effect of chemical bonding and physical anchoring formed between matrix resin and a modified reinforcement body, the interfacial layering tendency of engineering plastic and a fiber reinforced phase is overcome, so that stress transmission is more uniform; meanwhile, the functional additive components generate an in-situ synergistic effect in the precise injection molding process, and form a multi-stage enhanced network with matrix resin, so that the worm wheel matrix is endowed with excellent overall bearing strength and fatigue fracture resistance, and the structural integrity under the working conditions of high load and high-frequency steering is ensured.

The invention relates to the technical field of sheet conveying production, in particular to a continuous fiber reinforced thermoplastic composite sheet conveying production line which comprises two conveying frames, a conveying belt is arranged between the two conveying frames, and fixing plates are fixedly connected to the left portions of the upper ends of the two conveying frames. The upper ends of the two fixing plates are jointly and fixedly connected with a top plate. According to the continuous fiber reinforced thermoplastic composite sheet conveying production line, the continuous fiber reinforced thermoplastic composite sheet is extruded through the pressing rollers, bubbles possibly generated in the composite sheet in the thermoplastic process can be reduced, and therefore the compactness and structural integrity of the composite sheet are improved; and a spring is arranged in the extrusion mechanism, so that self-adaptive pressing of the composite sheets with different thicknesses can be realized, the equipment can quickly switch corresponding cold source or heat source types according to the materials, thicknesses or process requirements of the different composite sheets, and the adaptability of the production line to diversified production requirements is enhanced.

The invention discloses a glass fiber reinforced plastic wiredrawing plate and a processing method thereof, the glass fiber reinforced plastic wiredrawing plate comprises a glass fiber reinforced plastic plate matrix, the glass fiber reinforced plastic plate matrix comprises a fiber reinforced matrix layer and a gel coat layer on at least one surface of the fiber reinforced matrix layer; at least one surface of the glass fiber reinforced plastic plate substrate is provided with a wire drawing structure; the fiber-reinforced matrix layer is formed by infiltrating fibers in matrix layer resin, and the fibers in the fiber-reinforced matrix layer are fiber chopped yarns; and any one or combination of fiber continuous yarns, fiber surface felts, fiber felts, fiber stitch-bonded felts, fiber composite felts, fiber cloth, fiber multi-axis cloth, fiber warp-knitted cloth, fiber composite cloth and fiber woven products. By arranging the wire drawing structure, the surface roughness is improved so as to enhance the bonding force, and the pollution and bonding problems caused by mechanical polishing are avoided; the processing method simplifies the process, reduces the cost, does not need complex corona treatment, provides a good contact surface for bonding of the glass fiber reinforced plastic plate and other materials, and guarantees the bonding effect.

A biodegradable, fiber-reinforced orthopedic staple for use in fixation of tissue and bone to restore anatomical relationships. The staple comprises a biocomposite composition including a bioabsorbable polymer and reinforcing mineral fibers. The staple further comprises a bridge portion attached to two or more shoulders, each of which is attached to a leg. The mineral fibers have at least two different lengths.

The invention provides a hollow fiber reinforced aerogel composite material and a preparation method thereof, and relates to the field of aerogel materials. The preparation method of the hollow fiber reinforced aerogel composite material comprises the following steps: preparation of aluminum silica sol, modification compounding, vacuum impregnation, gel aging and supercritical drying. According to the hollow fiber reinforced aerogel composite material and the preparation method thereof, the sound insulation performance of the aerogel material can be effectively improved on the premise of overcoming the existing defects (the defect of a porous structure of aerogel, weak binding force among aerogel particles and thermal stress caused by mismatching of thermal expansion coefficients of aluminum and silicon components) of the aerogel material; the strength, the toughness and the heat insulation performance of the aerogel material are synchronously improved.

A pressure vessel is disclosed, comprising a pressure vessel body defining interior for containing a pressurized fluid and an accessory attachment structure coupled to the pressure vessel body. The pressure vessel body comprises a liner and at least a first layer that surrounds the liner, the first layer including a fiber-reinforced polymer. The accessory attachment structure comprises an accessory connection portion and an anchor portion. The anchor portion is secured between the liner and the first layer with the first layer overlapping the anchor portion. The accessory connection portion projects outwardly from the anchor portion at least partially through the first layer.

A process for preparing a fiber reinforced thermoplastic is disclosed. The process includes melting a first thermoplastic and a second thermoplastic in a melting zone of a twin-screw processor, feeding at least one continuous fiber downstream of the melting zone into a melted mixture of the first thermoplastic and the second thermoplastic, incorporating the at least one continuous fiber into the melted mixture in a mixing zone, the mixing zone including at least one wave element having a continuous outer surface in the form of a helical wave, and obtaining the fiber reinforced thermoplastic from the twin screw processor. Further, a fiber reinforced thermoplastic composition prepared by an extrusion process the composition having a density between 1.3 g / cc to 1.7 g / cc and a flexural modulus of at least 4000 MPa is disclosed.

The utility model discloses a high-performance fiber reinforced PPR (pentatricopeptide repeats) pipe. The pipe sequentially comprises an inner layer (1), a fiber reinforced layer (2) and an outer layer (3) from inside to outside, and the fiber reinforced layer (2) is formed by winding at least two fiber bundles. The pipe has the characteristics of high toughness and high strength, and overcomes the defects of low temperature resistance, poor shear resistance and high cost caused by manufacturing materials.

A stabilizer clamp (20) for fastening a stabilizer rod (40) to a vehicle is disclosed. The stabilizer clamp (20) has a receptacle (22) for the stabilizer rod (40), wherein the receptacle (22) is formed as an intermediate space between two legs (24, 24a, 24b) for fastening the stabilizer clamp (20) to the vehicle and a bend (26) connecting the two legs (24, 24a, 24b). The stabilizer clamp (20) is made predominantly of plastic or predominantly of fiber-reinforced plastic. The arch (26) has, in an axially arranged sectional plane relative to the center of gravity of the sectional plane, a flexural rigidity with respect to a curvature about the axial axis of at least 35,000,000 Nmm2, wherein the sectional plane passes through a circle center (28) of the arch or a fictitious radial center of a stabilizer rod for whose diameter the stabilizer clamp (20) is designed.

The invention discloses a power module heat dissipation structure and a manufacturing method thereof, and belongs to the field of semiconductor devices. The method comprises the following steps: firstly, preparing fiber-reinforced phase change layers through a gradient calendering process, compounding a low-thermal-resistance interface material with a liquid cooling plate main body, compounding a uniform-temperature film with the low-thermal-resistance interface material by using film coating equipment, obtaining a uniform-temperature liquid cooling plate through a gradient hot pressing process, and then mounting the fiber-reinforced phase change layers on two sides of a chip. And alternately stacking the uniform-temperature liquid cooling plates and the chip layers to obtain a stacked structure (n is greater than or equal to 1, and n is an integer) with n layers of power chips and n + 1 layers of uniform-temperature liquid cooling plates, integrally pressurizing the device, installing a fastening structure, and finally installing and applying a liquid cooling pipeline. The heat dissipation structure prepared by the method has the characteristics of high space utilization rate and high heat dissipation efficiency. The method is simple to operate, high in production efficiency and suitable for industrial production.

The invention discloses elastic fiber reinforced hydrophobic eutectic composite gel as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The method for preparing the elastic fiber reinforced hydrophobic eutecticevaporate composite gel comprises the following steps: (1) carrying out heat treatment on an elastic fiber membrane at 100-150 DEG C for 20-200 minutes, soaking the elastic fiber membrane in an ethanol solution of benzophenone, taking out the elastic fiber membrane, and drying the elastic fiber membrane to obtain the treated elastic fiber membrane; (2) uniformly mixing a polymeric monomer, a cross-linking agent, a photoinitiator and a hydrophobic eutectic solvent to obtain a hydrophobic eutectic composite gel precursor solution; and (3) putting the treated elastic fiber membrane into the precursor solution of the hydrophobic eutectic composite gel, defoaming, and carrying out photo-initiation polymerization to obtain the elastic fiber reinforced hydrophobic eutectic composite gel. According to the prepared composite gel, the mechanical strength and fatigue resistance are effectively improved through the elastic fibers, and the composite gel has good adhesiveness.

A modular step that may be composed of a fiber reinforced thermoplastic, metal, or other material. An embodiment of the modular step has a body and two flanges and is configured in size and shape to be detachably affixed to a window well. The modular step mates to the window using a friction fit, mechanical fasteners or tabs / slots. Multiple modular steps can be attached to a single window well. The modular step can be used to facilitate egress through a window well and improves the visual aesthetics of a window well. Another embodiment of the modular step includes a body and a plurality of flanges and is configured in size and shape to be detachably affixed to a window well, wherein the modular step includes one and only one rung, with the plurality of flanges including two and only two flanges on either side of the rung.

A hollow core insulator is provided for housing an electronics module for use in power transmission and distribution lines, the hollow core insulator comprising: a fibre-reinforced plastic (FRP) core which includes a first flange, a second flange and a body therebetween, the insulating core defining a bore, wherein the flanges and body are integral and the first flange and the second flange each include a face and a plurality of threaded apertures extending into the face; and a silicone mold which encases the body and includes a series of sheds extending outward from the body, wherein at least one shed includes a perimeter lip.

The invention discloses an integrated fiber-reinforced thermoplastic prepreg tape as well as a preparation method and application thereof, and relates to the technical field of composite materials, the preparation method comprises the following steps: preparing a fiber-reinforced thermoplastic prepreg tape base material to be subjected to hot-press compounding and a wave-absorbing resin film; preheating the surface to be treated of the fiber reinforced thermoplastic prepreg tape base material; and laminating the wave-absorbing resin film on the to-be-treated surface of the preheated fiber-reinforced thermoplastic prepreg tape base material, carrying out hot-pressing compounding, fusing the wave-absorbing resin film with the resin on the to-be-treated surface of the fiber-reinforced thermoplastic prepreg tape base material, and cooling to obtain the integrated fiber-reinforced thermoplastic prepreg tape finished product. On the premise that the original excellent mechanical property of the prepreg tape is hardly influenced, the broadband wave-absorbing function is efficiently and stably integrated, the thermoplastic prepreg tape which is high in surface quality, high in interface bonding and integrated in structure and function is successfully prepared, and the thermoplastic prepreg tape has a wide application prospect in the field of high-end equipment such as aerospace and national defense military industry.

A process for preparing a fiber reinforced thermoplastic is disclosed. The process includes melting a first thermoplastic and a second thermoplastic in a melting zone of a twin-screw processor, feeding at least one continuous fiber downstream of the melting zone into a melted mixture of the first thermoplastic and the second thermoplastic, incorporating the at least one continuous fiber into the melted mixture in a mixing zone, the mixing zone including at least one wave element having a continuous outer surface in the form of a helical wave, and obtaining the fiber reinforced thermoplastic from the twin screw processor. Further, a fiber reinforced thermoplastic composition prepared by an extrusion process the composition having a density between 1.3 g / cc to 1.7 g / cc and a flexural modulus of at least 4000 MPa is disclosed.

The invention discloses a rolling device for a glass fiber reinforced polytetrafluoroethylene material, relates to the field of rolling forming, and aims to solve the problems that existing equipment is unstable in tension, easy to deviate, difficult in component control and poor in synergism. The device comprises a frame base, a PLC (Programmable Logic Controller) control unit, and an uncoiling mechanism, a buffer mechanism, a deviation rectifying mechanism, a tension control mechanism, a heating mechanism, a scraping and grinding mechanism and a coiling mechanism which are sequentially arranged along a material coil transmission direction, and all the mechanisms are electrically connected with the PLC control unit. The uncoiling mechanism fixes and releases a material coil, the buffering mechanism and the tension control mechanism cooperate to maintain constant tension, the deviation correcting mechanism corrects transverse deviation, the heating mechanism improves plasticity of the material coil, the scraping and grinding mechanism regulates and controls material components, and the coiling mechanism completes coiling. The device is high in automation degree, capable of guaranteeing the consistency of product quality and improving the production efficiency, and suitable for rolling forming of the material.

The invention belongs to the technical field of prepreg tape production, and particularly relates to a continuous fiber reinforced prepreg tape and a preparation method thereof. The method comprises the following steps: 1) pretreating matrix fibers to obtain pretreated fibers; 2) carrying out yarn spreading treatment on the pretreated fiber by an airflow yarn spreading method to obtain a continuous fiber thin-layer belt; and (3) carrying out segmented dipping enhancement treatment on the continuous fiber thin-layer belt, and then cooling and sizing to obtain the continuous fiber reinforced prepreg belt. According to the invention, through the organic combination of airflow yarn spreading and dip plating technologies, the Y-axis bonding strength of the prepreg tape is enhanced from the microscopic level, and the fiber distribution form is improved, so that the overall mechanical property of the prepreg tape is remarkably improved and optimized, and the weather resistance of the prepreg tape is also remarkably improved through the treatment improvement of the dip material.

The present invention relates to a preparation method and application of a composite while-drilling leak-proof agent, and belongs to the field of oil drilling engineering technology. The composite while-drilling leak-proof agent is prepared from the following components in percentage by mass: 20-45% nano-composite particles, 15-35% multi-stage fiber-reinforced network materials, 10-20% intelligent response plugging agent, 5-10% high-temperature resistant additive, 1-5% dispersant, and the balance is deionized water, and the total content of each component is 100%. The composite while-drilling leak-proof agent provided by the present invention introduces a core-shell structured thermosensitive resin to realize a three-dimensional synergistic mechanism of "nano-composite particle filling-multi-stage fiber network bridging-intelligent response curing", thereby realizing efficient and environmentally friendly plugging of ultra-high temperature and high-pressure formations. The success rate of single plugging is increased from 45% to 92%, and the average operation time is shortened by 60%, providing an efficient solution for deep and ultra-deep drilling.

The invention belongs to the technical field of concrete, and particularly relates to a concrete composite material for roads and bridges and a preparation method thereof. The concrete comprises the following raw materials: a cementing material system, an aggregate system, a hybrid fiber system, a stable liquid storage lightweight aggregate and an additive system, the cement, the fly ash and the silica fume are used for constructing a cementing material system, the high-strength lightweight aggregate is sucked into the composite internal curing liquid and then is subjected to surface layer liquid stabilizing treatment to obtain the liquid stabilizing type liquid storage lightweight aggregate, and the internal humidity retention capacity and the early-age shrinkage state of the concrete are improved through synergistic cooperation of all the components in the composite internal curing liquid; the steel fiber and the PVA fiber are further combined to construct a multi-scale hybrid fiber reinforcement system, and PVA fiber surface activation treatment, staged water adding wet mixing and liquid stabilizing type liquid storage lightweight aggregate rear-section low-speed adding processes are adopted, so that the fiber dispersion uniformity is improved, the early liquid loss risk of the lightweight aggregate in the mixing stage is reduced, and comprehensive improvement is achieved.