53 results about "Fiber breakage" patented technology

This application belongs to the field of silicon core tube technology and discloses an underground communication silicon core tube with an anti-settlement compensation section structure. The core tube structure includes a core tube assembly and a connecting assembly. The core tube assembly includes two corrugated tube bodies with a certain degree of elasticity and two inserts fixed to the two end faces of one of the tube bodies. The end faces of the two tube bodies are close together. The end face of the other tube body has slots for insertion into the inserts. The number of slots is equal to the number of inserts, and their positions correspond one-to-one. This application, through improvements to the existing structure, reduces the difficulty of replacing damaged silicon core tubes compared to the existing one-piece molding method. Only the damaged part needs to be replaced, simplifying the construction process, reducing workload, and shortening the construction cycle. Furthermore, the corrugated structure reduces the probability of fiber breakage and transmission degradation caused by deformation stress transmitted to the internal optical cable.

This utility model discloses a novel silk fabric cutting device, including a housing. An arc-shaped cutting seat is fixedly connected inside the housing, and a guide plate is fixedly connected to the outer wall of the housing. A cylinder is fixedly connected inside the housing, and a U-shaped frame is fixedly connected to the bottom of the cylinder's output end. Two cylinders are fixedly connected inside the housing, and a blade holder is fixedly connected to the bottom of the U-shaped frame. A cutting blade is fixedly connected to the bottom of the blade holder. This utility model provides stable support for the novel silk fabric body from below through the arc-shaped cutting seat. The cylinder-driven U-shaped frame, with the sliding limit between the cylinders and the groove, ensures that the cutting blade always moves vertically and engages with the arc-shaped cutting seat. Combined with the compression limit of the rubber seat, it effectively prevents the novel silk fabric body from shifting during cutting, preventing edge fuzzing or fiber breakage.

This utility model discloses a fiberglass feeding device for preventing fiber breakage, including an operating table. A frame is fixedly installed at the lower end of the operating table. Fixed posts are fixedly installed at both the front and rear ends of the upper center position of the operating table. A sliding groove is provided inside the fixed post. A lead screw is installed inside the sliding groove. The upper and lower ends of the lead screw are rotatably connected to the inner wall of the sliding groove, respectively. A movable seat is sleeved on the outside of the lead screw. The movable seat slides and limits the sliding of the sliding groove, and one end of the movable seat extends to the outside of the sliding groove. An L-shaped fixed plate is fixedly installed on the outside of one end of the movable seat. A third fixed frame is installed above the L-shaped fixed plate. A tensioning cylinder is installed between the third fixed frames. The front and rear ends of the tensioning cylinder are rotatably connected to the third fixed frame. A servo motor is fixedly installed at the upper end of the fixed post. This structure solves the problems of insufficient fiber breakage prevention effect and inconvenient replacement of the winding drum.

The utility model discloses a quartz fiber yarn tension adjusting device belongs to fiber yarn tension adjusting technical field, solved the problem that the mechanical structure of quartz fiber yarn tension adjusting device in traditional technology will lead to the fiber fracture if tension control is improper, it includes: the yarn and the yarn function of collecting yarn when realizing in the tension adjustment through the first drive motor of base drive's both sides roller on the base, the second drive motor drives the rotation of screw rod, and the screw rod outer cover has the thread ring, because the thread ring is fixedly connected with the slide, so the thread ring can not rotate, but because the slide is connected with the guide rail, the thread ring will replace the force transmission of drive motor and convert into the force along the guide rail direction translation on the screw rod, thereby make the slide and the compression roller frame receive the force of second drive motor, and translate on the guide rail, realize the tension elimination of quartz fiber yarn, realize adjustable effect and realize the full automatic function of the yarn, the yarn and the yarn.

This invention provides an anti-lifting and anti-counterfeiting tape and its manufacturing method. From top to bottom, it comprises a substrate layer, an anti-counterfeiting pattern layer, and a pressure-sensitive adhesive layer with a functional gradient structure. The pressure-sensitive adhesive layer is an integrally molded single-layer structure, and in the thickness direction perpendicular to the plane of the substrate layer, the cohesive strength of the pressure-sensitive adhesive layer exhibits an asymmetric gradient distribution. The pressure-sensitive adhesive layer includes a high-cohesion region: near the anti-counterfeiting pattern layer, the chemical cross-linking density of which keeps the elastic modulus of this region within a preset range, thereby suppressing elastic stringing deformation of the adhesive under peeling force. This invention achieves effective interception and dissipation of the substrate's rebound stress by setting a low-modulus "high-wetting region" on the adhesive side and introducing an "internal stress self-adaptive layer" under the substrate. While ensuring long-lasting adhesion without lifting on curved surfaces, it avoids damage to the cardboard fibers caused by strong peeling, achieving a balance of "strong adhesion without fiber breakage."

The present invention relates to a single-layer or multi-layer structure for transporting, storing, or distributing compressed gases, particularly hydrogen, under high pressure, wherein the single-layer or multi-layer structure comprises at least one composite reinforcement layer constituting the outer skin of the structure, which is preferably semi-crystalline, conforming to standard ISO 11357-3: The structure comprises a fibrous material in the form of continuous fibers impregnated with a composition comprising at least one ductile thermoplastic polymer, having a glass transition temperature (Tg) measured according to 2013, wherein the Tg is less than or equal to the operating temperature To, or the Tg is higher than the operating temperature To, with |To-Tg| ≤ +120°C, in particular |To-Tg| ≤ +80°C, in particular |To-Tg| ≤ +50°C, and includes at least one composite reinforcement layer, wherein the impregnated fibrous material constituting the composite reinforcement layer, after integration, has a lateral fracture strain greater than the fracture strain of the fibers at the operating temperature and strain rate representative of use, in particular greater than 1.6%, in particular greater than 1.8%, in particular greater than 2%, and more particularly greater than 2.2%, and the structure does not include an internal seal layer.

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.

This invention provides a multimodal sensing method and system for online monitoring of inorganic fiber breakage during drawing. The method includes: acquiring infrared thermal and visible light images of the drawing furnace stencil based on a time synchronization mechanism; preprocessing to extract temperature and visual features of the fiber forming area at each stencil; spatiotemporally registering the temperature and visual features of the fiber forming area at the same stencil to form a multimodal feature vector for that fiber; performing a preliminary judgment on the multimodal feature vector of each fiber forming area based on a threshold method to mark suspected broken fibers; sequentially inputting the multimodal features of the broken fibers into a trained fiber breakage detection model for further identification to obtain a breakage confidence score; if the breakage confidence score exceeds the threshold, the fiber is determined to be broken, triggering an alarm and location processing. This invention effectively solves the problem of unreliability of traditional single sensors in high-temperature, high-speed, and multi-filament environments, significantly improving detection accuracy and efficiency.

This application relates to a fast-connection power optical cable connector, including a collar, with a lower clamping ring integrally formed on the lower right side of the collar. An upper clamping ring is fixedly mounted on the upper surface of the lower clamping ring by bolts. This application utilizes the movable fitting of a fixed plate and a movable sleeve, as well as the movable fitting of a movable sleeve and a fixed plate, to allow two optical cable segments to be fitted with the collar and sleeve respectively, bringing them very close together. Then, the optical fibers are fused together, with the fused portion engaging with a fiber clamping block. Afterward, the fixed plate and collar can slide in opposite directions, straightening the previously loose optical fiber. This solves the problems in existing technologies where excessively long optical fibers bend within the equipment, causing the connection equipment to sway under wind force, leading to fiber breakage or wear, thus ensuring stable optical fiber signal transmission.

This invention relates to the field of basalt fiber preparation technology, specifically disclosing a melting and drawing device for preparing basalt fibers. The device includes a frame, a melt chamber, a drawing die, and a winding and drawing mechanism. The melt chamber is fixedly mounted on the upper end of the frame. The drawing die is sealed in an installation port at the bottom of the melt chamber. Electrodes are connected to both ends of the drawing die. A cylindrical nozzle connected to each perforation is provided on the lower surface of the drawing die. A nozzle temperature control assembly is located below the melt chamber. This invention ensures rapid cooling and shaping of the basalt fibers during the drawing process by maintaining the molten liquid temperature above the drawing die within its optimal range. This effectively prevents fiber breakage during the drawing process. Furthermore, it allows for rapid switching and adjustment of the drawing speed to meet the cooling and shaping requirements of various drawing speeds during the basalt fiber preparation process, thus possessing broad applicability.

The invention relates to the field of geophysical logging, and discloses a dual-logging-mode optical fiber sensing sound wave detection device and a control method thereof. The dual-logging-mode optical fiber sensing sound wave detection device comprises a power supply module used for providing electric energy; the measurement control module is used for controlling the optical modulation and demodulation module to emit laser pulse signals; the emission circuit is used for providing an emission driving signal for the emission acoustic system according to the emission instruction sent by the measurement control module; the emission sound system is used for amplifying the emission driving signal and executing sound wave excitation operation; the receiving sound system is used for sensitizing the weak sound signal so as to enable an optical fiber in the receiving sound system to be disturbed, and then mechanical vibration of the weak sound signal is coupled into a scattered light signal of the laser pulse signal; and the optical modulation and demodulation module is used for transmitting a laser pulse signal to the optical fiber and demodulating the scattered light signal to obtain spectral data. The optical modulation and demodulation module is arranged in an underground device, so that the defect that the optical fiber is snapped due to large self weight of the composite cable can be avoided.

The utility model discloses a high bearing capacity flat hoisting belt, including hoisting belt main part, one end of hoisting belt main part is provided with first hoist mouth, the other end of hoisting belt main part is provided with second hoist mouth, be provided with first slot and second slot on hoisting belt main part, hoisting belt main part includes fiber layer, one side of fiber layer is provided with first rubber layer, the other side of fiber layer is provided with second rubber layer. The utility model discloses a rubber layer is wrapped fiber layer, and the elasticity of rubber can absorb the puncture kinetic energy of sharp object, reduces the puncture risk, improves the anti -puncture ability of hoisting belt, and when sharp object penetrates the outer layer rubber, will push away the sealant layer and form tiny hole, when sharp object removes, the sealant layer will fill and wrap the tiny hole left by puncture object, and is closely combined with surrounding rubber, forms the seal, repairs hoisting belt, prevents hoisting belt and leads to fiber fracture because of hole, and the length of hoisting belt is adjustable.

This invention relates to the field of health monitoring technology and discloses a method and apparatus for analyzing the failure of composite fiber in flight equipment. The method includes acquiring raw multidimensional signals and performing wavelet packet decomposition and reconstruction to obtain microscopic damage components and macroscopic response components; performing feature mapping on the microscopic damage components to obtain a fiber fracture feature sequence; calculating the envelope mutual information values ​​of the fiber fracture feature sequence and the macroscopic response components to generate a dynamic damage coupling index sequence; performing weighted prediction based on the dynamic damage coupling index sequence to obtain a damage evolution prediction curve; dividing the evolution stages according to the rate of change of the derivative of the damage evolution prediction curve to determine the basic risk level; correcting the basic risk level according to the fiber fracture feature sequence, and outputting a composite fiber failure early warning signal. This method enables cross-scale correlation analysis of microscopic damage and macroscopic response in composite materials.

This invention provides a waste textile opening and impurity removal recycling device, including a main body, a shredding mechanism, and a resonant opening mechanism. The main body includes a frame and a control cabinet, with the shredding mechanism installed inside the frame. The resonant opening mechanism is located inside the frame and includes a vertical resonant cavity, a spiral guide, a three-dimensional excitation unit, and an elastic support unit. This invention utilizes the synergistic effect of the X-axis, Y-axis, and Z-axis three-dimensional excitation units to generate multi-dimensional resonance in the vertical resonant cavity. By leveraging the difference in inherent frequencies between fibers and impurities, the device achieves gentle untangling of fiber entanglement and efficient dissociation of impurities under the action of resonant force. Combined with the staged guidance of the three-section variable-lead spiral guide, the material sequentially completes pre-resonance adaptation, main resonance depth separation, and fine opening and refining treatment, ensuring sufficient opening while completely avoiding the fiber breakage damage caused by traditional high-speed mechanical impacts and tearing.

The application discloses a high-density flexible optical fiber ribbon micro-cluster cable containing hollow optical fibers and multi-core optical fibers and a preparation method thereof, and belongs to the technical field of optical cables. The cable comprises optical fiber units and an outer sheath arranged on the periphery of the optical fiber units. The outer sheath is divided into a first sheath part and a second sheath part along the radial direction. The first sheath part is inlaid with a reinforcing member. The first sheath parts are arranged in pairs and are arranged on the two sides of the optical fiber units respectively. The second sheath part connects the two first sheath parts. The shrinkage rate of the sheath material in the first sheath part is greater than that in the second sheath part. The application controls the shrinkage rate of the circumferential sheath material of the outer sheath, so that the shrinkage rates of the sheath materials at different positions are different, and the internal optical fiber units are prevented from being squeezed, and the probability of fiber breakage in the production of the micro-cluster cable is reduced. The application adopts a conventional extrusion mode for forming, avoids the problem of optical fiber breakage caused by the vacuum sizing process of conventional micro-cluster cables, simplifies the forming process of the micro-cluster cable, and improves the production efficiency of the optical cable.

This utility model relates to the field of aramid waste filament technology, specifically a gradient temperature control spinneret for melt respinning of aramid waste filament. It includes a protective outer ring, a top spinneret, an inner spinneret, and a bottom spinneret. The top, inner, and bottom spinnerets are all installed inside the protective outer ring, and each of the top, inner, and bottom spinnerets has circumferentially through-holes for drawing fibers. This gradient temperature control spinneret for melt respinning of aramid waste filament optimizes the melt respinning process by designing a gradient-decreasing distribution of drawing fibers. Compared to drawing fibers of the same size in traditional technology, the gradient-sized drawing fibers can apply a diameter-reducing force to the waste filament at different stages, avoiding stress concentration caused by large deformation, thereby reducing fiber breakage and improving the stability and production efficiency of the entire melt respinning process.

This invention relates to the field of functional fiber materials technology, specifically disclosing a multifunctional graphene masterbatch and its application in antibacterial and cooling fibers. This invention employs purely physical exfoliation to prepare high lattice integrity (Raman spectroscopy). D / I G Graphene quantum dots with a particle size ≤0.14 are pre-composite and melt-spun under vacuum freeze-drying to achieve uniform dispersion and axial orientation within the fiber. The resulting fiber exhibits a tensile strength of 5.3 cN / dtex, a thermal conductivity of 0.27 W / (m·K), and an antibacterial rate >99.9% against Staphylococcus aureus and Escherichia coli. This antibacterial rate remains above 99% after 50 washes and above 95% after 100 washes, demonstrating exceptional durability, and without the leaching of chemical antibacterial agents. This invention achieves fiber reinforcement, a cooling sensation, and long-lasting safe antibacterial properties simultaneously through a purely physical process.

The utility model relates to fan blade processing technical field especially fan processing blade detection positioning device, including having keeping integral determination stable determination box, being located determination box upper end is equipped with a plurality of groups is used for to blade detection positioning detection positioning module, detection positioning module lower end is connected with the determination steering assembly that is used for along determination box upper end sliding and angle adjustment adaptation blade curved surface, determination steering assembly upper end is inserted with blade placement module that carries out pressure placing and keeps stable to blade, adopts flexible contact and distributed support, this effectively avoided the local indentation, delamination, fibre fracture or uncontrollable overall elastic deformation caused by concentrated load in blade root end and key support point, especially suitable for thin wall, big size, low stiffness's composite material blade, through determination steering assembly and detection positioning module's rotation and swing arm adjustment, the device can flexibly adapt to the complex three -dimensional curved surface profile of blade, improves overall positioning effect.

This invention discloses a method for preparing a high-strength, high-modulus carbon fiber ultrathin prepreg, comprising: spreading high-strength, high-modulus carbon fibers to obtain flat fiber bundles, then stacking and pressing them with a resin film placed above and below them; under the action of temperature and pressure, allowing the resin to fully impregnate the fiber bundles; and then cooling, coating, and winding. The high-strength, high-modulus carbon fiber is one of M40X, M55J, M60J, or higher grade carbon fibers, with a tensile modulus >377 GPa. This invention also discloses the high-strength, high-modulus carbon fiber ultrathin prepreg prepared by the above method and its applications. The spreading roller surface used in this invention is made of polytetrafluoroethylene, and the limiting roller surface is made of ceramic, solving the problems of easy fuzzing and fiber breakage of high-strength, high-modulus carbon fibers, and avoiding corrosion between carbon fibers and metals. The prepreg prepared by this invention has advantages such as high specific strength, high specific modulus, corrosion resistance, and stable structural dimensions, and has broad application prospects in aerospace and other fields.

This invention discloses a method for constructing a ductile concrete bridging force model considering the randomness of fiber pull-out, belonging to the field of model construction technology. The method involves modeling and calculating the number of fibers in a cross-section; randomly assigning embedment depth and angle to each fiber; obtaining random distribution parameters of characteristic values ​​for each fiber; generating a simplified pull-out curve model for each fiber; establishing a fiber truncation algorithm; superimposing the pull-out curves of single fibers to establish a fiber bridging force model with randomness in single fiber pull-out; and applying the bridging force model. This construction method introduces randomness into single fiber pull-out, calculates the number of fibers in the cross-section and the fiber breakage rate to fit the pull-out curve of a single fiber, and sequentially superimposes the pull-out curves of all fibers on the cross-section according to the minimum step size of data acquisition, establishing a random bridging force model based on a three-segment line of single fiber pull-out. The analysis results show strong consistency with experimental data, making it suitable for guiding the design and optimization of the macroscopic properties of composite materials.

This invention provides a biomimetic design-based two-parameter function-controlled gradient material and its filling structure, comprising variant CFCB lattice unit cells arranged in an array along the X, Y, and Z directions, wherein the amplitude A of the variant CFCB lattice unit cells along the Z direction is... z Controlled by a two-parameter function, and with the variant CFCB lattice unit cell arrangement symmetrical along the midline of the X-Z plane, this invention, based on biomimetic design principles, applies a gradient control strategy to the geometric description and control of complex lattice materials. The resulting gradient lattice material can be used as a filler in thin-walled square tube structures. Experimental results show that the gradient lattice proposed in this invention can effectively improve the filling structure's resistance to lateral bending loads, effectively delay fiber breakage in thin-walled square tubes, and thus significantly improve the structure's bending resistance and energy absorption performance.

This invention relates to the field of polymer material modification and tribology, and discloses a multi-component synergistic reinforced polyetheretherketone (PEEK) composite material and its preparation method. The composite material comprises 5%-15% carbon fiber, 5%-15% flake graphite, and 5%-15% polytetrafluoroethylene (PTFE), with the balance being PEEK resin. The preparation method includes: differentiated drying pretreatment of raw materials, stepwise premixing of PEEK and lubricating fillers, side-feeding melt blending extrusion of carbon fiber, and high-temperature pressure injection molding. The core technology utilizes side-feeding to retain the aspect ratio of carbon fiber, solving the problems of fiber breakage and uneven dispersion. The material of this invention establishes a synergistic mechanism of rigid skeleton, lubricating reservoir, and film-forming agent. It exhibits a longer extreme dry friction life compared to pure PEEK, a lower coefficient of friction under water lubrication, and excellent erosion resistance under water lubrication conditions containing silt, making it suitable for various complex friction conditions.

This invention discloses an aramid paper spray-wetting hot rolling device and process. Along the aramid paper conveying direction on the guide rollers, the device sequentially includes an unwinding tension control mechanism, a hot rolling mill unwinding frame, a vertical spray-wetting mechanism, a moisture detection device, a preheating guiding mechanism, a hot rolling mechanism, a residual heat drying mechanism, a cooling and shaping mechanism, a thickness detection device, and a winding tension control mechanism. This invention utilizes moisture swelling to plasticize aramid fibers, avoiding paper surface defects such as fiber breakage, roller sticking, wrinkling, and fuzzing caused by dry rolling, significantly improving paper density, mechanical strength, and dielectric properties. The moisture content is precisely controllable and humidified uniformly, eliminating the deformation problems of traditional wet humidification methods. It effectively solves the performance and quality pain points of existing dry rolling processes and is suitable for the densification finishing of various meta- and para-positioned aramid papers, especially suitable for the continuous industrial production of high-flatness, high-density aramid papers for high-end electrical insulation and aerospace honeycomb substrates.

This invention discloses a miniature butterfly-shaped optical cable, composite electromagnetic wire, and system for transformer winding detection, relating to the field of transformer condition monitoring technology. The key technical features are: an outer sheath containing a first sensing optical fiber and a second sensing optical fiber arranged side-by-side within it, with a tensile reinforcement between them. The first sensing optical fiber transmits strain detection optical signals, and the second sensing optical fiber transmits temperature detection optical signals. The outer sheath is an integrally molded structure that encloses and fixes the first and second sensing optical fibers and the tensile reinforcement. The outer sheath is made of oil-resistant and high-temperature-resistant insulating material, with a major axis of 0.8mm-1mm and a minor axis of 0.2mm-0.45mm. This invention achieves dual-fiber co-location and comprehensive protection through an integrated miniature optical cable structure, solving the problems of easy misalignment, high fiber breakage rate, and insufficient protection capacity in discrete fiber laying, thus improving the accuracy and lifespan of distributed detection of transformer winding deformation and temperature.

This invention relates to a continuous carbon fiber reinforced polyetheretherketone (PEEK) porous plate and its preparation method. The preparation method includes 3D printing continuous carbon fiber reinforced PEEK layer by layer into a porous plate preform, followed by high-temperature molding of the preform. The raw materials for the continuous carbon fiber reinforced PEEK include PEEK and carbon fiber. This invention proposes a hybrid manufacturing route: first, a porous plate preform is fabricated using high-temperature in-situ continuous carbon fiber / PEEK 3D printing; then, the preform is placed in a molding device for high-temperature and high-pressure molding to improve interlayer bonding, eliminate pores and internal cavity defects, and improve fatigue and static load performance. This route balances personalized geometry with material densification and interfacial bonding, and significantly reduces fiber breakage and material waste caused by subsequent CNC drilling.

This invention belongs to the field of nylon melt spinning, and discloses a fine denier high-strength nylon fiber, its preparation method, and its applications. The fine denier high-strength nylon fiber is produced by melt spinning of raw materials including a PA substrate and a mixed functional masterbatch; the mixed functional masterbatch includes an ionic liquid and a copolymer CoPA66 / 6. The preparation method includes: using PA as the main material and the mixed functional masterbatch as the second component, or melting the PA main material using a single-screw extruder, adding the mixed functional masterbatch to the PA melt after side-feeding single-screw melting, then melt spinning to prepare nascent fibers, followed by 4-8 times stretching and heat setting to obtain fine denier high-strength nylon fibers. This invention utilizes the effective hydrogen bonds formed between the urea-containing ionic liquid and the amide groups to achieve the destruction of the hydrogen bond network during melting and its recombination after stretching and heat setting, thereby achieving the preparation of the target fiber. The obtained fiber has a breaking strength ≥9.0 cN / dtex and a breaking elongation of 16-24%, showing broad application prospects.

This invention relates to the field of fiber optic sensing technology, specifically to an NHCPCF fiber optic seawater salinity sensor with dual microchannels, its fabrication method, and its application. The sensor comprises: an introductory single-mode fiber, a nodeless hollow-core photonic crystal fiber, and an outtroductory single-mode fiber, sequentially fused together. The nodeless hollow-core photonic crystal fiber includes a first cladding and a main vent. Uniformly distributed silica tubes are disposed inside the main vent, with the tube wall tangent to the inner wall of the main vent and the axis of the main vent parallel to the axis of the silica tubes. The sensor utilizes the anti-resonance reflection waveguide principle of NHCPCF and specific microchannels to measure seawater salinity. It avoids the traditional method of large-area cavitation in the cladding, employing microchannels to improve integration, effectively prevent fiber breakage, and enhance mechanical strength during testing. This sensor exhibits high sensitivity (salinity sensitivity -0.88 nm / ‰), good repeatability, and stability.

The utility model relates to ceramic fiber paper line technical field, and disclose a kind of ceramic fiber paper line squeeze dewatering device, including dehydration platform, the dehydration platform front side is provided with controller, the dehydration platform inside is provided with upper press roll and lower press roll, the dehydration platform inside is provided with conveyer belt, the dehydration platform top is provided with adjusting mechanism and drying mechanism. Through adjusting mechanism, utilize motor in driving part, motor drives bidirectional screw rod, bidirectional screw rod drives screw block, so that screw block drives fixed plate and fixed rod, so that fixed rod drives movable plate to change angle under the action of fixed rod and rotating rod, so as to drive door type board to slide on the surface of sliding rod under the action of sliding block, so as to adjust the gap and pressure of upper press roll, avoid water residue due to insufficient pressure, or excessive pressure causes fiber breakage, paper crushing and other problems.

The application discloses a preparation method of quick-drying chemical fiber and relates to the technical field of high-performance synthetic fiber preparation. The method comprises the following steps in sequence: synthesizing amphiphilic macromolecular block monomers containing sulfonic acid groups and polyethylene glycol hydrophilic chain segments, hydrophobic anchor chain segments and hydroxyl (amino) and acrylate group double-end reactive groups, in-situ copolymerizing the monomers with terylene or chinlon monomers at a molar fraction of 3-8%, covalently embedding the hydrophilic groups into the polymer main chain, melt spinning the copolymer through a circular spinneret, inducing micro-phase separation through thermodynamics in a slow cooling zone, self-assembling the hydrophilic block on the surface layer of the fiber to form nano-wetting grooves, and forming a dense skin layer cross-linking network through online ultraviolet irradiation micro-cross-linking. The breaking strength of the prepared fiber is not less than 3.5 cN / dtex, the quick-drying performance retention rate after 50 times of standard washing is not less than 85%, and the washing micro-fiber shedding amount is not more than 300 pieces / (gram, time).

The present invention aims to provide a cylindrical filter in which the occurrence of fuzzing (particularly the occurrence of fuzzing resulting from the breakage of the first fiber having the smallest average fiber diameter) is prevented. [Solution] In the cylindrical filter according to the present invention, the proportion of first fibers having the smallest average fiber diameter gradually increases from one main surface to the other in the nonwoven fabric wound around the cylindrical filter. The nonwoven fabric is wound with the other main surface facing the inner circumference of the cylindrical filter. Therefore, the other main surface is not subjected to large tension. In other words, in the cylindrical filter according to the present invention, the first fibers are less likely to break, thus preventing the occurrence of fuzzing.