93 results about "Retting" patented technology

A kind of carbon fiber wet winding extrusion equipment, it relates to carbon fiber extrusion field, including roller bracket, roller and glue tank, the inner side surface of the roller bracket on both sides has the axle slot of interval arrangement, the roller is inserted between the axle slot on both sides by bearing, can utilize ultra-smooth roller to carry out extrusion to carbon yarn of resin infiltration, extrude excess resin, to reach the purpose of controlling the resin content of winding layer, also can utilize the angle difference between yarn extrusion roller to optimize the shortcoming of parallel extrusion, prevent the resin that has been extruded from being bonded on roller reverse rotation secondary resin dipping.

The invention discloses a production process of heavy aramid canvas. The production process comprises the following steps: S1, using aramid precursors as raw materials; s2, performing primary twisting on the aramid fiber protofilaments by using a rope twisting machine to form primary twisted filaments; s3, performing second twisting on the first twisted yarns by using a second twisting machine to form second twisted yarns; s4, weaving the second twisted yarns to form canvas; s5, the canvas is subjected to gum dipping treatment; wherein the impregnation formula comprises the following components in parts by weight: 0.37 part of caustic soda flakes, 14.7 parts of resorcinol, 14.7 parts of formaldehyde, 429 parts of butadiene-vinylpyridine rubber latex, 21 parts of ammonia water, 495.23 parts of water and 25 parts of isocyanate; the gum dipping speed is set to be in a periodic pulse mode. According to the method, the impregnation speed of the aramid canvas is set to be in a periodic pulse mode, so that the impregnation uniformity can be improved, the strength distribution is more consistent, and the strength loss rate is reduced. Through tests, the strength of the heavy aramid canvas can reach 4864n / mm.

The application discloses a winding forming device, comprising a rack, a glue dipping device for dipping yarn, a core mold fixing device for fixing a core mold, a winding device for winding yarn on the core mold, the glue dipping device, the core mold fixing device and the winding device being sequentially arranged along the length direction of the rack; the rack comprises a first rack and a second rack, the core mold fixing device is arranged on the first rack, and the winding device is vertically arranged on the second rack; and the first rack and the second rack are separately arranged. The winding forming device can prevent the fiber layer from deviating due to the vibration of the winding device caused by the stress of the core mold, effectively improves the qualified rate of products, and is simple in installation and dismounting operation of the core mold, high in operation efficiency and high in recycling rate of resin glue solution. The application further discloses a winding forming production line.

The invention provides a high-thermal-conductivity low-modulus graphene fiber heat-conducting gasket and a preparation method thereof. Graphene fibers are directionally wound and impregnated to prepare a prepreg, the prepreg is laminated and bonded to form a high-orientation fiber plate, and then the high-orientation fiber plate is directionally cut in the direction perpendicular to the fibers to obtain the heat-conducting gasket composed of continuous vertical fibers and organic silicon. The fiber is of an X-shaped crossed network structure, and is combined with an elastic silica gel matrix to form a hinge-like structure which can be highly deformed under the orientation of 0.5-10 degrees and-10--0.5 degrees, so that the compression resilience and durability are remarkably improved, and meanwhile, efficient heat conduction is kept. According to the structure, the problems of buckling, fracture and stress concentration which are easily caused by traditional vertical or random arrangement are avoided. A one-way felt impregnation lamination cutting method is adopted, the processing problem caused by high filler is solved, the fiber content can reach 85.1 wt%, and the array density is 2.4-195.9 mg / cm. The gasket has high thermal conductivity, low modulus and excellent rebound resilience, and is suitable for thermal management of high-power electronic equipment such as electronic base stations, communication radars, new energy automobiles, aerospace and the like.

The application relates to the technical field of carbon materials, in particular to a carbon / carbon heating device and a preparation method thereof.The preparation method comprises the following steps: mixing dispersed short carbon fibers, a dispersing agent, carbon material powder, water-based phenolic resin and water, stirring and uniformly dispersing, pouring into a preset shape filter tank for suction filtration to obtain a short fiber mesh reinforced sheet layer with a preset shape; performing impregnation treatment on the short fiber mesh reinforced sheet layer, and obtaining a prepreg reinforced sheet layer after drying; laying carbon fiber filaments and performing glue coating treatment, and forming a carbon fiber filament layer with a preset shape after drying; cutting a carbon fiber cloth into a preset shape and performing impregnation treatment to form a carbon fiber cloth layer; and stacking and arranging the prepreg reinforced sheet layer, the carbon fiber filament layer and the carbon fiber cloth layer in a staggered mode, wrapping the surface of a cylindrical heater mold in an oxygen-free environment, heating and curing to form a cylindrical preform, and performing carbonization, cycle densification, high-temperature purification and machining treatment to form the carbon / carbon heating device. The application can improve the uniformity of the device conductivity.

This invention provides a fiber winding and impregnation apparatus, comprising a cabinet, an impregnation assembly, a feeding roller, and a scraping assembly. The cabinet contains an operating table with an impregnation tank filled with resin, and a weighing sensor at the bottom for weighing the resin. The impregnation assembly includes an impregnation roller group extending into the impregnation tank and a power mechanism for driving the roller group to move vertically. The feeding roller is located within the cabinet on the feeding side of the impregnation assembly and is equipped with an encoder. The scraping assembly includes a rotating shaft and a scraper plate located above the rotating shaft. The scraper plate has a degree of freedom to move vertically and has an adjusting block at its top. This fiber winding and impregnation apparatus allows for adjustment of the impregnation depth and scraping force for fiber bundles of different specifications during impregnation, ensuring the performance and quality of composite material products.

The invention relates to the field of bamboo veneer processing, in particular to a method for widening a large-breadth flattened sliced bamboo veneer, which comprises the following steps of: compounding the sliced bamboo veneer with gauze or non-woven fabric by hot pressing; edge cutting and width fixing are conducted on the compounded sliced bamboo veneers; glue is smeared in the thickness direction of the sliced bamboo veneers; the sliced bamboo veneers are placed in an environment of 30-50 DEG C, and glue is dried; the dried sliced bamboo veneers are placed in a board splicing machine for pre-splicing; and hot-pressing and compounding the sliced bamboo veneer and the gauze or the non-woven fabric again to obtain a finished product. The formaldehyde-free environment-friendly adhesive is adopted, so that chemical pollution is reduced; the side face of the sliced bamboo veneer is pre-spliced and combined with gauze / non-woven fabric, multiple times of gum dipping is avoided, and gum consumption can be reduced; continuous veneers with the width of 2-10 m or above can be prepared, cloth-shaped veneering materials are achieved and directly used for wall decoration, and machining links can be reduced; the cut bamboo wood is suitable for household products such as stationery bags and computer supports, and the application dimension of the bamboo wood can be expanded.

The application belongs to the technical field of carbon-based thermal protection composite materials, and discloses a kind of quick densification high tenacity carbon-based composite material and its preparation method, its preparation steps include: 1) after mixing uniformly benzoxazine resin, solvent and ceramic precursor, heating, first impregnation liquid is prepared;2) first impregnation liquid is brushed on carbon fiber cloth, and naturally air-dried, to obtain pretreated carbon fiber cloth;3) after mixing uniformly benzoxazine resin, solvent, ceramic precursor and ceramic particles, second impregnation liquid is prepared;4) second impregnation liquid is brushed on pretreated carbon fiber cloth, and dried, to obtain prepreg;5) after laminating and laying up prepreg, mould pressing is formed, to obtain blank;6) blank is heated and pyrolyzed under inert atmosphere, to obtain carbon-based composite material.The carbon-based composite material of the application can be formed and simultaneously quickly densified in only one cycle, almost realizes full densification, porosity is less than 1.5vol%, and has excellent mechanical properties and thermal protection performance.

The application relates to a non-woven fabric for filtration, and relates to the technical field of non-woven fabrics.The non-woven fabric is a multi-layer structure and comprises a dry-process framework, an ultrafiltration membrane and a reverse osmosis treatment membrane arranged in sequence; wherein the dry-process framework is prepared by using the following raw materials in the following proportions by weight through a dry-process technology: polyester fiber 20-30 parts, polyester fiber 25-35 parts, flame-retardant fiber 3-5 parts, glass fiber 2-4 parts, reinforcing agent 10-15 parts, melt-blown fiber 8-16 parts and polytetrafluoroethylene film 6-14 parts.The dry-process framework is prepared by heating and melting the fiber cloth and then cooling, so that the compactness of the dry-process framework is enhanced, and the stiffness and strength of the dry-process framework are improved.The reverse osmosis treatment membrane, the ultrafiltration membrane and the dry-process framework are used in combination, so that the strength of the non-woven fabric is further enhanced.The step of impregnation treatment is omitted, so that the pungent smell is avoided, the prepared non-woven fabric is free of glue and formaldehyde, is more environmentally friendly, has higher production efficiency and stronger applicability.

The invention belongs to the technical field of fiber resin composite materials. The invention provides a glass fiber reinforced epoxy resin plate and a preparation method thereof.The method comprises the steps that S1, an impregnator is started, 39-40 parts by weight of epoxy resin is put into a glue tank, 10-13 parts by weight of acetone is added for dilution, then 9-10 parts by weight of a curing agent, 1-1.5 parts by weight of an accelerant, 2-2.2 parts by weight of phosphoric acid activated rice hull ash and 3-3.5 parts by weight of modified melamine urate are added, and a composite glue material is obtained; s2, after the temperatures of the pretreatment section and the post-drying section of the impregnator are stable, putting 50-52 parts of glass fiber cloth into the impregnator, and starting the impregnator to obtain a glass fiber impregnated material; and S3, treating and cutting the glass fiber impregnated material by adopting a high-temperature autoclave molding process to obtain the glass fiber impregnated material. The smoke density of the glass fiber reinforced epoxy resin plate is reduced while the excellent mechanical property (tensile strength) of the glass fiber reinforced epoxy resin plate is ensured by controlling the content of the epoxy resin (namely the impregnation amount).

The invention relates to the technical field of cord fabrics, in particular to a cord fabric cover protection process. According to the technical scheme, the two faces of a woven cord fabric material are impregnated, dried and cured, then a layer of latticed breathable fabric is arranged in a roller pressing combination mode, and the latticed breathable fabric is made of a flame-retardant material in a weaving mode. Grids of the latticed breathable fabric form a polygonal structure, the surface and the internal position of the latticed breathable fabric are arranged into an integral protective wear-resistant layer in a viscose coating mode, and processing is carried out in a gum dipping container in a complete gum dipping state when the viscose coating is arranged. The multi-layer protective structure has the advantages that the safety is better during use, the use range can be effectively enlarged, the multi-layer protective structure is integrated by taking the single-layer cord fabric base material as a main body, and the overall structural tightness is better by fastening and combining in the gum dipping process.

A kind of continuous fiber wet winding process technology method and device of post large tension, it is characterized in that, including the following procedures: fiber yarn route design, fiber spread yarn thinning control, impregnation auxiliary adjustment, winding resin preparation, fiber impregnation adjustment, impregnated fiber spread yarn extrusion glue adjustment, winding tension adjustment, winding line design, solidification and mechanical property test.The device of the application is simple, can be popularized and applied, and low wear winding under large winding tension can be realized.The present application effectively solves the process problem that traditional process cannot simultaneously realize fiber low damage impregnation and fiber large tension precision winding by designing special winding device and matching winding process, and provides an efficient process technology path for realizing high fiber volume content and high mechanical property fiber composite material preparation.

The utility model provides a fiber impregnation device for wet winding, belongs to the technical field of wet winding of carbon fibers, and aims to solve the problem that the impregnation efficiency of carbon fiber tows is affected due to the fact that the permeation speed of attached fiber resin is low. Comprising a gum dipping box main body, a guide mounting frame, a carbon fiber unwinding roller, a limiting transmission shaft, a position adjusting piece and a carbon fiber carding plate, the guide mounting frame is fixedly connected to the left side of the gum dipping box main body; the carbon fiber unwinding roller is positioned on the left side of the gum dipping box main body; the limiting transmission shaft is rotationally connected to the left side of the gum dipping box main body; the position adjusting piece is rotationally connected to the upper part of the gum dipping box main body; the carbon fiber carding plate is fixedly connected to the lower part of the position adjusting piece; according to the impregnation device, the permeation speed of resin is increased, and the impregnation efficiency of the carbon fiber tows is improved.

The utility model relates to a gum dipping device for carbon fiber fabric, which comprises a gum dipping component, a drying and pressing system, a wind-up roll, a servo motor belt, a rack and a running box, a driving wheel is manually rotated to assist a connecting rod to displace along the direction of a limiting frame, so that outward expanding thrust and inward retracting tension are generated on a telescopic frame, and the driving wheel is driven to rotate to drive the connecting rod to move along the direction of the limiting frame. The position of the ring block above can be determined and the distance between the ring block and the ring block can be controlled through the expansion and contraction change of the ring block, so that the carbon fiber fabric subjected to gum dipping can be rolled by the auxiliary rolling system, redundant gum dipping materials can drop into the residual gum collecting box along the auxiliary rolling system, collection is completed, and therefore the uniform gum dipping operation of the carbon fiber fabric is ensured, and the gum dipping quality is improved. And waste is avoided.

The utility model discloses a convenient, reliable and economical carbon fiber multifilament manual gum dipping and sample preparation device, which relates to the technical field of gum dipping and sample preparation devices and comprises a sliding mechanism, the sliding mechanism comprises a guide rail, two sides of the guide rail are connected with sliding blocks in a sliding manner, the sliding blocks can be fixed at any position of the guide rail through locking knobs, and the sliding blocks are fixed on the guide rail through the locking knobs. A bottom plate is arranged at the top of the sliding block, and a fiber multifilament fixing mechanism is fixedly connected to the top of the bottom plate; the fiber multifilament fixing mechanism comprises two triangular support plates, the two triangular support plates are of a plane symmetry structure, the two triangular support plates are fixed to the bottom plate through bolts, three winding shafts are arranged at the front ends of the triangular support plates, and the rear portions of the triangular support plates are designed to be of an L-shaped structure. According to the utility model, the difficulty of manual sample preparation is reduced, the sample preparation quality is improved, and the rejection rate is greatly reduced, so that the sample preparation efficiency is higher.

The utility model discloses a negative pressure impregnation device for glass fiber cloth, and relates to the technical field of glass fiber cloth. The glass fiber cloth negative pressure impregnation device comprises an impregnation tank, a guide structure arranged on the impregnation tank and a winding roller located on the right side of the impregnation tank. The guide structure comprises a mounting plate, a transmission roller, a first motor and a guide roller, and the guide structure further comprises a first filter roller and a second filter roller which are rotationally mounted on the adjacent inner walls of the gum dipping tank; a second motor is fixedly mounted on the rear side of the gum dipping tank, rotating shafts are rotationally mounted on the adjacent inner walls of the gum dipping tank, an output shaft of the second motor is fixedly connected with one group of rotating shafts, mounting seats are fixedly mounted on the rotating shafts, embedding grooves are formed in the mounting seats, and springs are fixedly mounted in the embedding grooves; and a processing structure is arranged above the gum dipping tank. The device can be used for extruding the impregnated glass fiber cloth, so that redundant colloid can be removed.

This utility model belongs to the field of fiber impregnation technology, specifically a fiber impregnation device, which includes: a support mechanism, an unwinding roller, a wire guiding mechanism, and a take-up roller. The support mechanism includes a glue box, a pressure roller, an unwinding bracket, a shaft hole, a slide groove, a guide groove, and a bracket. The pressure roller is arranged at the center of the bottom of the glue box cavity, the unwinding bracket is arranged on the left side of the top of the glue box, the shaft hole is opened on the right side of the top of the glue box, the slide groove is opened on the left side of the shaft hole, the guide groove is opened at the top of the right side wall of the glue box, and the bracket is arranged on the right side wall of the glue box. The unwinding roller is arranged on the unwinding bracket. Excess glue in the fiber bundle is squeezed out and falls back into the glue box by the wire guiding roller and the pressure roller. Then the fiber bundle passes through the guide groove, and the guide groove scrapes off the excess glue on the surface of the fiber bundle, avoiding excessive glue dripping after the fiber bundle passes through, thereby preventing excess glue dripping on the outside and affecting the working environment.

The utility model relates to the technical field of fiber sizing, and discloses a fiber desizing-sizing system which comprises a desizing unit, a sizing unit and a sizing traction roller set, the desizing unit is used for obtaining desized fibers and comprises the desizing traction roller set, a pyrolysis module and an infiltration module; the sizing unit is used for sizing desized fibers and comprises a glue dipping module, a glue dripping module, a glue scraping module and a glue melting module; the sizing traction roller set is located between the sizing unit and the desizing unit. According to the utility model, desizing and sizing of different sizing agents can be met, adjustment and increase can be performed in a targeted manner, and the process operation is simple and flexible.

The invention relates to the technical field of cord fabric production, in particular to a composite structure cord fabric, a manufacturing method thereof and a gum dipping device. The main body warps are made of natural fibers, the small number of exhaust warps are made of natural fibers, the exhaust warps are uniformly arranged among the main body warps at intervals during weaving, the cord fabric is subjected to gum dipping treatment, and the coefficient of tensile tension borne by the natural fiber exhaust warps in the gum dipping process is controlled within the range of 0.3-0.7 CN / dtex. The invention provides a cord fabric product formed by compounding high-strength synthetic fiber main body warps and twisted natural fiber exhaust warps, and a manufacturing method and a special device which take precise low-tension impregnation and flexible beating as cores. And the problem that the completeness of the functional fibers and the treatment quality of the glue solution cannot be considered in the traditional process is systematically solved.

The application discloses a carbon fiber composite reinforced cover layer based on a dip coating process, which comprises a base cover rubber layer and a carbon fiber composite layer, wherein the carbon fiber composite layer is obtained by dipping carbon fiber composite cloth in glue, air-drying, and vulcanization; the carbon fiber composite layer is adhered to the upper surface of the base cover rubber layer through vulcanization; and the base cover rubber layer comprises the following raw material components: 95 parts of natural rubber, 15 parts of butadiene rubber, 3-5 parts of nano zinc oxide, 1-3 parts of stearic acid, 1-2 parts of solid malon resin, 1-2 parts of antioxidant 4010NA, 1-2 parts of antioxidant BW-60, 1-2 parts of heat-resistant antioxidant RF, 1-2 parts of antioxidant RD, 1-2 parts of microcrystalline wax, 0.5-0.8 parts of anti-scorching agent CTP, 45-50 parts of carbon black N220, 1-3 parts of aromatic oil, 1-3 parts of sulfur, and 1-2 parts of accelerator CBS. The application further discloses an ultrahigh-strength conveying belt, wherein the upper cover rubber layer of the ultrahigh-strength conveying belt adopts the carbon fiber composite reinforced cover layer based on the dip coating process, and the ultrahigh-strength conveying belt has the performance of ultrahigh strength.

The utility model discloses a gum dipping device for a pultrusion process, which comprises a gum dipping tank, openings are respectively arranged at two ends of the gum dipping tank in the length direction, the gum dipping tank is arranged on a pultrusion platform, and the gum dipping tank is positioned between a layered yarn row and a pre-forming die. Glue extruding plates are detachably installed at the two ends, provided with openings, of the glue dipping groove respectively, a yarn pressing assembly is installed between the pair of glue extruding plates, a plurality of glue extruding holes are formed in the glue extruding plates, and a plurality of first threaded holes are formed in the side wall of the glue dipping groove; second threaded holes matched with the first threaded holes are formed in the two side walls of the glue extruding plate correspondingly. Compared with the prior art, the gum dipping device for the pultrusion process can control the angle level of fibers entering a pultrusion mold, control the tension of the fibers, reduce the stress of pultrusion products, facilitate improvement of the bending problem of the pultrusion products after polishing, enable the fibers to be better infiltrated, and reduce the problems that the products cannot be infiltrated thoroughly and the like.

The utility model relates to the technical field of fiber composite material processing, and discloses a glue scraping and controlling tool for wet winding forming equipment, which comprises a glue dipping inlet roller and a glue dipping outlet roller which are positioned at the left end and the right end of a glue dipping roller, and a glue extruding and controlling component is arranged at the right end of the glue dipping outlet roller. The glue extruding and controlling assembly comprises a front lower glue scraping plate, a rear lower glue scraping plate and an upper glue scraping plate, and the upper glue scraping plate is located between the front lower glue scraping plate and the rear lower glue scraping plate. According to the utility model, the front lower glue scraping plate, the rear lower glue scraping plate and the upper glue scraping plate in the glue extruding and controlling assembly are used for scraping and controlling glue, so that broken fiber bundles cannot be wound on the glue scraping and controlling assembly in the glue scraping and controlling process, and the production stability is greatly improved; the glue solution in the fiber bundles can be pushed to run to a certain extent, so that the glue solution infiltration effect of the fiber bundles is greatly improved; meanwhile, the position of the upper glue scraping plate in the vertical direction can be adjusted, so that the glue scraping and controlling force can be controlled, the operation is simple, and the practicability is good.

The invention discloses a fiber winding head device and a fiber winding system, and relates to the technical field of composite material winding, manufacturing and forming, the fiber winding head device comprises an integral frame, a fiber supply mechanism, a three-roller impregnation mechanism and a yarn nozzle mechanism, the integral frame comprises an outer frame and an inner mounting bracket; the fiber supply mechanism comprises a fiber roll; the three-roller gum dipping mechanism comprises a gum dipping tank, a gum dipping roller, a gum attaching roller, a gum scraping roller, a first support, a second support and a third support, the gum dipping tank is fixedly arranged in the outer frame, the gum dipping roller is rotationally arranged above the gum dipping tank, the gum attaching roller is rotationally arranged above the gum dipping roller, and the gum scraping roller is rotationally arranged on the side portion of the gum dipping roller; the rubber roller driving mechanisms are arranged in the corresponding brackets in a sliding manner; the wire nozzle mechanism is connected to the side portion of the outer frame. The fiber winding system comprises a multi-degree-of-freedom mechanical arm system, an external rotating shaft system and the fiber winding head device. According to the device, the good forming production effect can be guaranteed, the adaptation range is wider, and the adjustment flexibility is high.

The application relates to the coating field, in particular to a sizing equipment for producing quartz glass fiber cloth, which comprises a feeding component, a sizing component and a processing and winding component, wherein the sizing component comprises a glue pool and a support installed above the glue pool, a first roller and a second roller for guiding the quartz glass fiber cloth into the glue pool are installed on the support, the first roller and the second roller are connected to the two ends of the glue pool through linkers respectively, are used for driving the two ends of the glue pool to ascend asynchronously, and automatically descend. When the equipment is stopped, the glue pool automatically descends under the action of the weight, is separated from the quartz glass fiber cloth, and the problem of an excessively thick glue layer caused by long-time soaking is avoided. When the equipment is restarted, the glue pool is in an inclined state and ascends due to the difference in the number of gear teeth, the movement makes the glue liquid shake, the precipitated glue is effectively mixed, when the equipment is normally operated, the gear continuously engages the rack to generate slight vibration, and the glue liquid is prevented from precipitating.

The application relates to the field of non-woven fabrics, in particular to a non-woven fabric with a cooling feeling and a preparation method thereof, which comprises the following steps: 1) island fibers are scattered, stacked and needled to obtain a needled fabric; 2) the needled fabric is heated to 100-130 DEG C and preheated for 1-5 min, then is conveyed to a heat-dissipation cooling treatment liquid with a temperature of 50-60 DEG C, is immersed for 10-20 min, is extruded and is dried to a humidity of 40-69%, so that a heat-dissipation cooling fabric is obtained; 3) the heat-dissipation cooling fabric is conveyed to a glue dipping liquid for glue dipping treatment, is heated to 80 DEG C-120 DEG C and is dried for 1-10 min, so that a glue-dipped fabric is obtained; and 4) the glue-dipped fabric is cut and flattened to obtain a non-woven fabric with a cooling feeling; the needled fabric is treated with a heat-conduction cooling liquid and a glue dipping liquid in sequence, a coating film is formed, the cooling particles of the heat-dissipation cooling film can be prevented from volatilizing too fast, and the cooling durability of the non-woven fabric is improved.

The invention relates to the technical field of high-pressure hydrogen storage equipment, and discloses a preparation process of a carbon fiber full-winding metal lining composite structure vehicle-mounted hydrogen storage bottle, which comprises the following steps: preparing a metal lining, carbon fibers, a resin system and sealing and auxiliary materials according to a formula, and quenching and tempering the metal lining to improve the hydrogen embrittlement resistance, thereby obtaining the carbon fiber full-winding metal lining composite structure vehicle-mounted hydrogen storage bottle. The method comprises the following steps: carrying out broadening and tension homogenization pretreatment on carbon fibers, carrying out vacuum defoaming on resin, forming a metal liner through a spinning process, processing a bottle opening thread, dipping the pretreated carbon fibers in glue, winding the carbon fibers on the preheated liner according to a specific rule under the control of a computer, curing and forming a winding body through a step heating program, and carrying out vacuum degassing on the resin. According to the hydrogen storage cylinder prepared by the process, the multi-stage sealing assembly of the cylinder opening is mounted and the graded torque is fastened, and finally the finished product is subjected to water pressure blasting, pressure circulation and air tightness test verification, so that the hydrogen storage cylinder prepared by the process has the characteristics of high hydrogen storage density, long cycle life, safety and reliability, and can meet the 70 MPa high-pressure hydrogen storage requirement.

The application relates to the technical field of trenchless pipe repairing, in particular to a glass fiber pipe with impregnated glue and a preparation method thereof. The glass fiber pipe with impregnated glue comprises a pipe to be repaired and a CIPP repairing layer covering the pipe to be repaired, the CIPP repairing layer comprises UV pre-impregnated glue and glass fiber fabric, the surface of the glass fiber fabric is compounded with up-conversion nano-particles, and the up-conversion nano-particles account for 0.01-0.20 wt% of the total mass of the glass fiber fabric. In the application, the up-conversion nano-particles are loaded on the surface of the glass fiber fabric, the up-conversion nano-particles convert a light source with a wavelength of 980-1020 nm into ultraviolet light, the UV pre-impregnated glue which is not completely cured in the CIPP repairing layer is subjected to secondary complete curing treatment, and then the comprehensive performance of the prepared glass fiber pipe with impregnated glue can be improved, and the thickness limitation of the existing UV pre-impregnated glue on the one-time forming UV curing process is broken.

This invention discloses a glass fiber braided tube impregnation and drying device, comprising an impregnation unit and a drying unit. The impregnation unit uses a cycloidal assembly to twist and impregnate the glass fiber filaments, while a suspension component drives the filaments in reciprocating motion to evenly wind them onto the outside of the mold tube. The drying unit uses a motor to drive the mold tube to rotate, and in conjunction with the closing of the drying chamber and hot air circulation, achieves rapid drying. An adjuster can regulate the number of glass fiber bundles to control the thickness of the braided tube, and a deflecting roller optimizes the impregnation path. This invention solves the problems of uneven impregnation, concentrated winding stress, low drying efficiency, and difficulty in process adjustment in existing technologies, significantly improving the production efficiency and product quality of braided tubes.

The utility model discloses a gum dipping fiber skein mechanism which comprises a rotary drum driven by a driving device to rotate, the rotary drum is axially provided with at least two wire through holes, and a detachable protective sleeve with an axial through hole is arranged in each wire through hole in a penetrating mode. When the impregnated fiber skein mechanism is used for processing, impregnated fibers are arranged in the protective sleeve in a penetrating manner, glue can drop into the protective sleeve, and when processing needs to be suspended, part of unglued yarns can be continuously inserted into the protective sleeve, then the yarns are suspended to penetrate, the protective sleeve is taken out from the yarn through hole, and the yarns are disassembled or forcibly disassembled from the two sides of the yarns. The protective sleeve can be cleaned or replaced, when the yarn is replaced and processed, the yarn can be directly broken, and the protective sleeve is taken out of the yarn through hole, so that the problem that subsequent yarn penetration is difficult due to the fact that residual glue in the yarn through hole is difficult to clean is effectively solved.