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532 results about "Filament winding" patented technology

Filament winding is a fabrication technique mainly used for manufacturing open (cylinders) or closed end structures (pressure vessels or tanks). This process involves winding filaments under tension over a rotating mandrel. The mandrel rotates around the spindle (Axis 1 or X: Spindle) while a delivery eye on a carriage (Axis 2 or Y: Horizontal) traverses horizontally in line with the axis of the rotating mandrel, laying down fibers in the desired pattern or angle. The most common filaments are glass or carbon and are impregnated in a bath with resin as they are wound onto the mandrel. Once the mandrel is completely covered to the desired thickness, the resin is cured. Depending on the resin system and its cure characteristics, often the rotating mandrel is placed in an oven or placed under radiant heaters until the part is cured. Once the resin has cured, the mandrel is removed or extracted, leaving the hollow final product. For some products such as gas bottles, the 'mandrel' is a permanent part of the finished product forming a liner to prevent gas leakage or as a barrier to protect the composite from the fluid to be stored.

Spherical surface sectioning type core mold tool for fiber winding and winding forming method

The invention relates to a spherical split type core mold tool for fiber winding and a winding forming method, and relates to the technical field of fiber winding forming, the spherical split type core mold tool comprises a main shaft, core mold petals and telescopic pieces connecting the main shaft and the core mold petals, each core mold petal is independently provided with a first telescopic piece, a second telescopic piece,..., an ith telescopic piece in the axial direction of the main shaft, and i is larger than or equal to 2; the core mold petals and the telescopic structures are connected through guide grooves formed in the core mold petals. The guide groove comprises a first groove and a second groove which are communicated, and the included angle alpha between the first groove and the second groove is larger than or equal to 90 degrees and smaller than 180 degrees. According to the tool, the core mold playing a bearing role in the winding process is divided into multiple sections, and the overall bearing performance in the winding process is guaranteed by means of the telescopic pieces; and after winding is finished, the mandrel petals are separated and rotated through cooperation of the telescopic pieces and the guide grooves, so that the maximum outer diameter of the tool is smaller than the opening diameter of the fiber shell, then the tool is withdrawn from the interior of the fiber shell, and therefore the winding forming efficiency is improved.
Owner:CHANGZHOU ZHONGKE FEIHANG COMPOSITE MATERIALS TECH CO LTD +1

Multi-bundle fiber winding linear trajectory planning method, equipment and medium

PendingCN119910926AYarnClassical mechanics
The invention discloses a multi-bundle fiber winding linear trajectory planning method and device and a medium, and relates to the technical field of fiber winding, and the method comprises the steps: determining a total center corner corresponding to an initial fiber winding linear trajectory according to a core model and initial winding parameters; setting a deviation range of a total central rotation angle, and determining a value range of the number of revolutions of a mandrel of the corresponding mandrel; setting a deviation range of the width of the fiber yarn tape, and determining a plurality of values of the number of circulation turns to obtain a plurality of mandrel rotation number values; according to the continuous fraction theory, the winding line type track tangent point number corresponding to each core mold mandrel revolution number value is calculated; screening out a plurality of winding line type tracks corresponding to the core mold and core shaft revolution number values meeting the tangent point number requirement and the coverage degree requirement; and screening out a fiber winding linear track meeting the multi-bundle winding requirement from the winding linear tracks meeting the tangent point number requirement and the coverage requirement. The scheme can be used for designing and planning a multi-bundle fiber winding linear track.
Owner:HEFEI UNIV OF TECH

Cylindrical petal type core mold tool for fiber winding

The invention relates to a cylindrical petal type core mold tool for fiber winding, in particular to the technical field of winding forming, and the cylindrical petal type core mold tool for fiber winding comprises a main shaft, a first core mold petal and a second core mold petal, and the first core mold petal and the second core mold petal surround the main shaft and are alternately arranged; the first core mold section is connected with the main shaft through a first telescopic piece; the second core mold section is connected with the main shaft through a second telescopic piece; the shortening stroke of the first telescopic piece is smaller than the shortening stroke of the second telescopic piece. And the extension distance of the first telescopic piece is equal to that of the second telescopic piece. According to the cylindrical petal type core mold tool provided by the invention, a configuration mode of the movable core mold petals is adopted, so that a good winding effect can be ensured, rapid demolding can be realized through the contraction of the telescopic piece during demolding, the defects that a sand core mold needs to be cleaned and the mold needs to be manufactured again for multiple times are avoided, and the molding efficiency of a fiber winding molded body is favorably improved.
Owner:CHANGZHOU ZHONGKE FEIHANG COMPOSITE MATERIALS TECH CO LTD +1

IV-type hydrogen cylinder stress monitoring system, signal processing method thereof and IV-type hydrogen cylinder

The invention discloses an IV-type hydrogen cylinder stress monitoring system, a signal processing method thereof and an IV-type hydrogen cylinder, and relates to the technical field of manufacturing of high-pressure hydrogen storage equipment. The carbon fiber winding layer stress monitoring structure and the liner stress monitoring structure are respectively arranged in a strain generation area of a carbon fiber winding layer and a strain generation area of the outer surface of a plastic liner in the IV-type hydrogen cylinder, so that the surface stress of the liner of the gas cylinder and the stress between carbon fiber winding layers can be dynamically monitored in real time; therefore, the IV-type hydrogen cylinder has the function of dynamically monitoring the stress between the carbon fiber winding layers and the stress of the inner container in real time. According to the signal processing method of the IV-type hydrogen cylinder stress monitoring system, high-frequency noise signals can be effectively filtered, low and medium-frequency signals can be reserved, and the surface stress of a carbon fiber winding layer and a plastic inner container can be accurately measured. The IV-type hydrogen cylinder is provided with the IV-type hydrogen cylinder stress monitoring system and has the function of dynamically monitoring the stress between carbon fiber winding layers and the stress of an inner container in real time.
Owner:JILIN TEACHERS INST OF ENG & TECH

Composite skirt connecting structure of solid rocket engine and forming method of composite skirt connecting structure

The invention discloses a solid rocket engine composite material skirt connecting structure and a forming method thereof.The connecting structure comprises a composite material skirt, a skirt hole reinforcing ring, a connected cabin section and a connecting piece, the composite material skirt and the skirt hole reinforcing ring are integrally formed, and the rear end of the composite material skirt and the rear end of the skirt hole reinforcing ring are connected with the connected cabin section through the connecting piece; the connected cabin section is of an L-shaped nested inner lap joint structure and has the butt joint limiting and bearing functions, and the thickness transition section at the front end of the composite skirt is connected with a fiber winding structure layer of a combustion chamber shell. Compared with a traditional metal skirt connecting structure, the weight reduction effect is obvious, compared with a traditional composite skirt hinge block connecting structure, the connecting mode is simpler, and the fiber continuity of a composite skirt connecting area is guaranteed; the problems that in-plane shear rigidity and strength of the composite material are insufficient, and orifice positions are prone to damage are solved. The structure and the forming process are simple, the maturity is high, and the cost is low.
Owner:SHANGHAI XINLI POWER EQUIP RES INST

Split type core mold tool for fiber winding shell barrel section

The invention relates to the technical field of composite material winding forming, in particular to a split type core mold tool for a fiber winding shell barrel section, which comprises a main shaft, a telescopic piece and core mold petals, the core mold petals are connected with the telescopic pieces through guide grooves formed in the inner surfaces of the core mold petals; the guide groove comprises a first groove and a second groove which are communicated with each other; an included angle alpha between the first groove and the second groove is more than or equal to 90 degrees and less than 180 degrees; the core mold petals are connected with the main shaft through telescopic pieces; at least two telescopic pieces are arranged in the axial direction of the main shaft; and the telescopic piece is connected with the main shaft through a sliding piece. According to the split type core mold tool for the fiber winding shell barrel section, by means of cooperation of the guide grooves, the core mold petals and the telescopic pieces, rapid demolding can be achieved after fiber winding forming is completed, the telescopic pieces are stretched to form the corresponding tool when the tool is used again, the fiber winding forming efficiency is remarkably improved, and the production cost is reduced. The production of a fiber winding forming body is facilitated.
Owner:CHANGZHOU ZHONGKE FEIHANG COMPOSITE MATERIALS TECH CO LTD +1

Multi-beam carbon fiber winding automatic control method and system based on multi-axis synchronization

The invention belongs to the technical field of fiber winding, and aims to solve the problems of serious fiber crossing phenomenon and low winding efficiency in the traditional winding technology. The multi-beam carbon fiber winding automatic control method based on multi-axis synchronization comprises the steps that mathematical characterization of a core model is constructed, and a spiral winding track of a wire nozzle is solved based on the mathematical characterization of the core model; the spiral winding track is converted into a cam synchronous movement curve associated with a virtual shaft, the virtual shaft is a hypothetical shaft and serves as a main shaft in the spiral winding process, and the virtual shaft is used for dynamically coordinating movement of a core mold rotating shaft, a core mold walking shaft, a wire nozzle feeding shaft and a wire nozzle rotating shaft through a cam synchronous mechanism; performing parameter configuration and procedure configuration of winding of multiple bundles of carbon fibers; equipment in the multi-beam carbon fiber winding device is reset, and the multi-beam carbon fibers are automatically wound based on the procedure configuration sequence. Efficient winding operation is achieved through a cam synchronization mechanism, and the winding requirements of different specifications can be met.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

Continuous fiber winding reinforced polyethylene composite pipe and preparation method thereof

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.
Owner:ANHUI RUIYUAN PIPELINE CO LTD

High-strength photovoltaic module structure and preparation method thereof

The invention discloses a high-strength photovoltaic module structure and a preparation method thereof.The high-strength photovoltaic module structure comprises a core structure used for improving the elasticity modulus, fiber reinforcing layers are arranged on the end faces of the two sides of the core structure, the fiber reinforcing layers arranged on the end faces of the two sides are connected at the side edge parts, and fiber winding surrounding parts are formed on the side edges of the core structure; all the side faces of the periphery of the core structure form full-connection type fiber binding reinforced fixing. Fiber winding is carried out on the side edge of the honeycomb structure photovoltaic module, fibers in a lower panel of the photovoltaic module are connected with fibers in an upper panel of the photovoltaic module, the bending rigidity of the photovoltaic module can be further enhanced, and the fibers in the lower panel of the photovoltaic module and the fibers in the upper panel of the photovoltaic module are connected in the mode that the fibers are wound on the side edge. The bending rigidity of the photovoltaic module is effectively enhanced, and the problem that the improvement of the bending rigidity is limited due to weak side edges of the module in the prior art is solved.
Owner:YANGTZE INSTITUTE FOR SOLAR TECHNOLOGY

Die for manufacturing composite material grating cone through fiber winding process

The utility model discloses a mold for manufacturing a composite material grating cone by a fiber winding process, belongs to the field of composite material molds, and solves the manufacturing problem of the existing grating cone. The mould comprises a conical mould main body, an upper steering nail ring, a lower steering nail ring, an upper flange, a lower flange, a rotating shaft and a silica gel soft film, wherein the rotating shaft sequentially penetrates through the upper flange, the conical mould main body and the lower flange; the conical mold body, the steering nail ring, the upper flange and the lower flange are coaxially matched, the upper steering nail ring is connected to the conical mold body through the upper flange, the lower steering nail ring is directly connected with the conical mold body, the lower flange is directly connected with the conical mold body, and the silica gel mold is formed by splicing one or more plane soft molds. The plurality of blades are circumferentially distributed on the outer surface of the conical mold main body; orthogonal grating grooves are formed in the surface of the silica gel mold, and the grating grooves are composed of grating strips in the axial direction and the circumferential direction. The mold is mainly used for manufacturing conical structures by fibers or prepreg tapes.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Defect evaluation method for fiber winding composite material pressure vessel based on ultrasonic detection

The invention discloses a fiber winding composite material pressure vessel defect evaluation method based on ultrasonic detection, and particularly relates to the technical field of defect evaluation, which comprises the following steps: simplifying a fiber winding structure into a net structure based on attribute difference and interaction relationship between fiber and resin; modeling is conducted by considering the resin filling position and the interaction relation between resin and fibers, the ultrasonic frequency, the pulse width, the excitation point position and the receiving point position transmitted by equipment are calibrated on the basis of a simulation model and applied to an actual container, a phased array is used for transmitting a pulse signal at a preset excitation point, and the signal is received at a preset receiving point; based on different incident angles of the pulse signals, ultrasonic echo data fully covered at the receiving point are collected, an incident angle evaluation model is constructed, incident angle evaluation coefficients at different ultrasonic incident angles at the excitation point are generated, and the optimal incident angle at the excitation point is obtained. The surface defect identification method is beneficial to surface defect identification, and the defect detection capability is enhanced.
Owner:ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY

Composite material pressure container inner container with reinforcing ribs and manufacturing method of composite material pressure container inner container

The invention relates to the technical field of composite material pressure vessel forming, and discloses a composite material pressure vessel inner container with reinforcing ribs, which comprises a cylinder body, sealing heads are arranged on the two sides of the cylinder body, the cylinder body section is provided with a plurality of cylinder body reinforcing ribs which are arranged at equal intervals along the axial direction of the cylinder body; the invention further discloses a manufacturing method of the composite material pressure container inner container with the reinforcing ribs, and the manufacturing method comprises the following steps that S1, segmented molds are designed and manufactured, and the molds comprise the inner mold and the outer mold; and S2, carbon fiber prepreg is laid on the surface of the inner mold to form a carbon fiber cylinder body section. The structural strength and uniformity of the inner container are optimized through design of reinforcing ribs and filling of a circumferential fiber winding reinforcing layer, the thickness of the reinforcing ribs is calculated based on the difference value between the minimum thickness and the thickness of the end socket, in winding forming, a co-curing process is adopted to be matched with a high-precision mold, an inner mold is fused into the inner container to provide support, and meanwhile, the thickness of the reinforcing ribs is reduced. And the interface strength is optimized through inner mold supporting and a laminated gradient structure.
Owner:JILIN INST OF CHEM TECH

Composite pipeline material

The utility model belongs to the technical field of pipeline materials, and particularly relates to a composite pipeline material. The utility model provides a composite pipeline material. The composite pipeline material comprises an inner surface layer, an inner fiber cloth reinforcing layer, an inner fiber winding layer, a fiber reinforcing structure layer, an outer fiber cloth reinforcing layer, an outer fiber winding layer and an outer protection layer which are sequentially stacked from inside to outside. The inner surface layer is made of epoxy resin; fibers in the inner fiber cloth reinforcing layer, the inner fiber winding layer, the fiber reinforcing structure layer, the outer fiber cloth reinforcing layer and the outer fiber winding layer are basalt fibers; and the outer protection layer is made of epoxy resin. According to the utility model, the epoxy resin and the basalt fiber have good electrical insulation performance and shielding performance, so that the pipeline material has a good stray current resisting effect.
Owner:BEIJING ZHONGDI TRANSPORTATION SCI ADVANCED MATERIAL TECH RES CO LTD +3

Thermoplastic composite material double-laser laying and winding head device and processing method

PendingCN120269858APolymer scienceTorque motor
The invention discloses a thermoplastic composite material double-laser laying and winding head device and a processing method. A torque motor is connected with a composite material tape reel; one end of the tension adjusting mechanism is connected with the composite tape reel, and the other end is connected with the pressure cylinder; the support is connected with the side surface of the tension adjusting mechanism 4; the re-conveying mechanism is fixed to the middle of the tension adjusting mechanism, the first laser head and the second laser head are fixed to the bottom of the tension adjusting mechanism, and the shearing mechanism is located between the re-conveying mechanism and the pressing mechanism. The re-conveying mechanism can be used for re-conveying the composite material strip to a proper position below the pressing mechanism after the composite material strip is cut off; the shearing mechanism is used for shearing the composite material strip when the composite material strip needs to pass through the jump point; the pressing mechanism attaches the composite material strip to the surface of a workpiece in a rolling mode, the shearing mechanism shears the composite material strip, and the composite material strip is laid and wound on the workpiece to form a base material; the pressing mechanism is used for pressing the composite material strip on the base material; the side face of the pressing mechanism is connected with a pressing roller cooling water faucet. According to the invention, the thermoplastic composite material is heated through double laser, so that the reliability of interlayer bonding of the composite material can be improved, the interlayer strength of the thermoplastic composite material is improved, and the laying and winding quality and efficiency of the thermoplastic composite material are improved.
Owner:ISBOT(WUHAN) TECH CO LTD

Method, device, medium, and product for pattern design in filament winding

A method, device, medium, and product for pattern design in filament winding is provided. The method includes: acquiring parameter data of a target elbow pipe mandrel; constructing a mandrel geometric model according to the geometric dimension parameters; the mandrel geometric model includes a geodesic mathematical model of a ring segment and a non-geodesic mathematical model of a cylindrical segment; the ring segment is an elliptical section annular elbow pipe; the cylindrical segment is an elliptical section pipe; determining number of yarns of the ring segment according to the geodesic mathematical model and set parameter data, and determining geodesic trajectory information of the ring segment; determining non-geodesic trajectory information of the cylindrical segment according to the non-geodesic mathematical model and a set slip coefficient; determining a filament winding pattern according to the geodesic trajectory information of the ring segment and the non-geodesic trajectory information of the cylindrical segment.
Owner:HEFEI UNIV OF TECH

Fiber winding mechanism and manufacturing device of composite pile

The invention discloses a fiber winding mechanism and a manufacturing device of a composite pile. The fiber winding mechanism comprises a rotatable rotating ring, a fiber winding mechanism and a fiber winding mechanism, wherein a winding hole allowing a pipe pile to penetrate through is formed in the middle of the rotating ring; the pre-impregnation unit is rotatably arranged on the rotating ring and rotates along with the rotating ring in the circumferential direction of the pipe pile so as to wind fibers to the outer surface of the pipe pile; wherein the pre-impregnation unit rotates along the circumferential direction of the pipe pile along with the rotating ring, and the pre-impregnation unit can rotate relative to the rotating ring, so that the included angle between the pre-impregnation unit and the horizontal plane is kept constant. According to the composite pile, the fibers are firmly bonded to the peripheral wall of the pipe pile, the corrosion resistance, impact resistance and soil friction resistance of the composite pile can be improved, meanwhile, the presoaking pool is always kept horizontal or forms a constant included angle with the horizontal plane, and leakage of presoaking liquid is avoided.
Owner:POLYU-WENZHOU TECHNOLOGY & INNOVATION RESEARCH INSTITUTE CO LTD +1

Nanofiltration membrane element and production process thereof

The invention relates to a nanofiltration membrane element and a production process thereof, and relates to the technical field of membrane separation, the nanofiltration membrane element comprises a central pipe, a membrane unit piece and a fiber winding layer, the central pipe is provided with a plurality of water inlet holes, the membrane unit piece is wound on the outer side of the central pipe, the fiber winding layer is wound on the outer side of the membrane unit piece, and the membrane unit piece comprises a membrane, water inlet mesh cloth and runner cloth; the runner cloth is divided into two cloth layers in the thickness direction of the runner cloth, and each cloth layer is provided with a filtering area, a glue line area and a side line area. A plurality of supporting lines are clamped between the two cloth layers, the supporting lines are located in the filtering area, all the supporting lines are arranged in the axial direction of the center pipe, the supporting lines extend in the radial direction of the center pipe when the cloth layers are in the spreading state, and one ends of the supporting lines are bonded to the positions, away from the connecting edges, of the glue line area; and a gap between the two cloth layers is communicated with the water inlet hole. The compressive strength of the runner cloth can be improved, so that the water passing amount is increased.
Owner:浙江奥氏芯材科技有限公司

Large-diameter resin-based composite material high-pressure container and design method thereof

The invention relates to the technical field of high-pressure containers for storing liquid or gas, in particular to a large-diameter resin-based composite material high-pressure container and a design method thereof.A preliminary fiber winding composite material pressure container is designed according to the grid theory, and the pressure container is optimally designed through a water pressure bursting test and finite element verification; under the action of a PLC control system, a multi-dimensional winding machine is utilized, a steel inner container serves as a mold, the fiber soaked with the resin solution is wound to the outer wall of the mold, fiber winding tension in the fiber winding annular direction and the fiber winding spiral direction is calculated according to the fiber winding thickness and the fiber winding angle, curing treatment is carried out, and the fiber winding tension in the fiber winding annular direction and the fiber winding spiral direction is obtained. According to the large-diameter resin-based composite material high-pressure container and the manufacturing method thereof, optimization design is conducted on the large-diameter resin-based composite material high-pressure container, the high-quality fiber-reinforced epoxy resin composite material is selected as a base body, and double improvement of strength and light weight is achieved through accurate fiber laying angle and density control.
Owner:XIAN RUOGU XINCHUANG TECHNOLOGY CO LTD

Automatic laying and forming process for carbon fiber fully-wound gas cylinder end socket reinforcing ring

The invention discloses an automatic laying and forming process for a reinforcing ring of a carbon fiber fully-wound gas cylinder end socket, and relates to the technical field of carbon fiber wound gas cylinders. Technological parameters are simulated and optimized; the laying line type is imported into software to plan the motion track of the robot; carbon fiber prepreg is adopted, single-layer prepreg laying is conducted between every two spiral layers of the gas cylinder according to the optimal process parameters, and the laminating state of the prepreg is monitored in real time. Full-automatic precise laying can be achieved, and the production efficiency and consistency are improved; the material utilization rate is improved; the manufacturing cost is reduced; the laying wrinkle defect is eliminated, and the gas cylinder bearing safety is improved; process parameters are quantified and optimized, and the performance of the carbon fibers is fully released.
Owner:SINOMA SCI & TECHSUZHOU

IV-type high-pressure hydrogen storage cylinder as well as preparation method and application thereof

The invention provides an IV-type high-pressure hydrogen storage cylinder as well as a preparation method and application thereof. The IV-type high-pressure hydrogen storage cylinder structurally comprises an inner container, and a plasma coating is sprayed on the outer surface of the inner container; the carbon fiber winding layer is wound and coated on the outer surface of the inner container sprayed with the plasma coating; the glass fiber winding layer wraps the outer surface, away from the inner container, of the carbon fiber winding layer in a winding mode, and the glass fiber winding layer is made of a composite material of glass fibers and a fire-resistant resin material; the fireproof resin material is modified epoxy resin; wherein the fire-resistant resin material comprises epoxy resin, metal oxide, ammonium phosphate, graphite and a triazine nitrogen-containing heterocyclic organic compound, and the IV-type high-pressure hydrogen storage cylinder prepared from the fire-resistant resin material has excellent fire resistance and impact resistance, is simple in preparation process and has a wide industrial application prospect.
Owner:FTXT ENERGY TECH CO LTD

Method for manufacturing hollow body by filament winding, system for manufacturing thereof and hollow body obtained

PCT designated stage expiredWO2025141182A1Domestic articlesPolymer sciencePhotoinitiator
The invention relates to a method (100) for manufacturing a hollow body, preferably an axisymmetric hollow body, comprising a layer of composite material, said process comprising the following steps: A step of providing (110) a polymeric composition; A step of impregnating (120) a fibrous material with the polymeric composition; A step of winding (130) the impregnated fibrous material around a mandrel, said winding being carried out for a winding duration; And a step of heating (150) the winded fibrous material, said heating being carried out for a heating duration to polymerize the layer of composite material; Wherein: the polymeric composition comprises a combination of a photoinitiator and a heat activated initiator; It further comprises a step of exposing (140) the polymeric composition to an UV light; And the heating duration is shorter than the winding duration.
Owner:ARKEMA FRANCE SA

Device for stabilizing localized dome reinforcement

An assembly is configured for use in a system for forming filament windings on a vessel having a circumference and a length. The assembly includes an endless belt and first and second rollers. The endless belt is configured to wrap partially around the circumference of the vessel to contact and impart pressure on a filament winding disposed on an outside surface of the vessel. The endless belt moves around the first and second rollers. A space is disposed between the first and second rollers to allow a filament wind eye of the system to move in a reciprocal motion along the length of the vessel. A method of using a machine for forming filament windings on a vessel having a circumference and a length is also described.
Owner:HEXAGON TECHNOLOGY AS

Carbon fiber composite material bearing rod and manufacturing method thereof

The present invention relates to the technical field of aerostat load-bearing structure equipment, and discloses a carbon fiber composite material load-bearing rod and a manufacturing method thereof, wherein the carbon fiber composite material load-bearing rod comprises a base shaft and two embedded pipe joints, the outer side wall of the base shaft is provided with a first fiber bundle winding layer; the base shaft comprises a middle section and connecting sections at both ends, the embedded pipe joint is sleeved on the outside of the first fiber bundle winding layer corresponding to the connecting section, and a second fiber bundle winding layer is further provided outside the first fiber bundle winding layer corresponding to the middle section; the outer surface of the second fiber bundle winding layer and the outer surface of the embedded pipe joint are jointly covered with a third fiber bundle winding layer. The carbon fiber composite material load-bearing rod effectively converts in-plane failure stress into normal extrusion failure stress by providing a fiber winding layer and an embedded pipe joint, greatly improving the bearing strength of the load-bearing rod, and has excellent tensile, compression, torsion, fatigue and impact resistance.
Owner:AEROSPACE INFORMATION RES INST CAS

Carbon fiber winding composite gas cylinder

The utility model discloses a carbon fiber winding composite gas cylinder which comprises an inner container, a carbon fiber layer, a fixed connection layer and a valve body connector. A carbon fiber layer is wound on the outer side of the inner container; a bottle opening formed by connecting the inner container and the carbon fiber layer is covered with a fixed connection layer, and the inner container and the carbon fiber layer are wrapped. A valve body connector is detachably connected to the side, located on the inner container, of the fixed connection layer. The carbon fiber winding composite gas cylinder has the advantages that the inner container and the carbon fiber layer are stably connected through the fixedly-connecting layer, the valve body connector is connected with the inner side of the fixedly-connecting layer, leakage of the carbon fiber winding composite gas cylinder can be effectively prevented, use safety is guaranteed, the outer layer, the end layer and the inner layer are integrally designed, and the carbon fiber winding composite gas cylinder is more stable in use. And the end parts of the outer layer and the inner layer are arc-shaped, so that the attachment is convenient, and the connection strength and stability are improved.
Owner:KUNMING GUANGRUIDA SPECIAL GAS CO LTD

FRP-concrete-steel double-wall hollow combined K-shaped component and construction method thereof

The invention relates to the technical field of combined members, provides an FRP-concrete-steel double-wall hollow combined K-shaped member and a construction method thereof, and aims to solve the problems that an existing FRP-concrete-steel double-wall hollow combined member is mainly manufactured through a fiber winding forming technology, and compared with a simple straight pipe, the technology for manufacturing node pipes or special-shaped pipes such as a three-way pipe is not mature, and the construction cost is low. And the FRP nodes are generally connected by using fiber cloth which is externally adhered and infiltrated with normal-temperature curing thermosetting resin, and the method has the problems that the curing time is long, the complete curing can be generally carried out in more than 24 hours, and the operation is complicated. Comprising the steps that an FRP outer main pipe is provided, the FRP outer main pipe is pretreated, and an FRP outer main pipe patch and an FRP outer main pipe body with operation holes formed in the outer side face are obtained; wherein the FRP outer main pipe patch is obtained after two penetrating holes are formed in an operation area patch complementary with the operation hole; and providing a steel inner main pipe, inserting the steel inner main pipe into the FRP outer main pipe body, and fixing the steel inner main pipe in the FRP outer main pipe body.
Owner:SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY

A Simulation Modeling Method for Projecting the Filament Winding Trajectory of a Composite Material

The present invention relates to a method for simulating and modeling the projection of the automatic fiber placement trajectory of a composite material. The method includes the following steps: obtaining the center point coordinates by averaging the coordinates of all nodes of the calculation unit; making a perpendicular projection point from the center point coordinates to the center lines of all tow trajectories of the currently selected ply, calculating the shortest distance from the center point to the center lines of all tow trajectories of the selected ply using the distance formula after obtaining the projection point coordinates, and selecting its tow trajectory by comparing all the above shortest distances; making a tangent to the selected tow trajectory such that the tangent passes through the projection point; calculating the dot product of the tangent vector and the ply coordinate system of the calculation unit to obtain the true ply angle of the single layer of the selected calculation unit, and replacing the theoretical ply angle of the single layer of the selected calculation unit with the true ply angle. The present invention obtains an accurate and true ply angle and can accurately simulate the structural performance of the actual automatic fiber placement.
Owner:CHENGDU AIRCRAFT DESIGN INST OF AVIATION IND CORP OF CHINA

Cantilever crane machine, fiber composite material part and production method and production line of fiber composite material part

PendingCN120134659ACranesYarnFibrous composites
The present invention relates to the field of fiber composite material parts, and discloses a boom machine, a fiber composite material part, and a production method and production line thereof, the production method comprising: a spiral fiber winding step (S10) of spirally winding a resin-infiltrated fiber yarn onto the outer peripheral surface of a part main body expansion core mold (1) to form a spiral fiber layer (4); a circumferential fiber winding step (S11) in which a circumferential fiber (5) is spirally wound on the outer peripheral surface of the spiral fiber layer to form a circumferential fiber wound layer; and a rigid outer mold mounting and heating curing step (S20), in which the rigid outer mold (2) is mounted so as to surround the circumferential fiber winding layer, heat the spiral fiber layer, and extrude the spiral fiber layer toward the rigid outer mold to cure and shape the spiral fiber layer by expanding the workpiece main body expansion core mold. The production method and the production line are beneficial to improving the production efficiency of the fiber composite material part, and can ensure that the fiber composite material part has better surface quality and mechanical property.
Owner:ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY CO LTD

Yarn cutting assembly for polyester filament yarn winding

The invention relates to the related technical field of polyester filament processing, in particular to a polyester filament winding thread cutting assembly which comprises a support, a top seat fixedly mounted at the top end of the support, a thread guiding assembly arranged on the lower surface of the top seat, a sliding seat connected to the inner side of the top seat through an arranged driving mechanism, and a connecting seat fixedly mounted on the outer side of one end of the sliding seat. A supporting rod is fixedly installed on the outer side of the connecting base, assembly frames are installed on the outer walls, close to the lower end, of the two sides of the supporting rod correspondingly, a transverse rod and a first roller rod are sequentially arranged on the inner sides of the two assembly frames from top to bottom, connecting rods are fixedly installed on the outer sides of the two ends of the transverse rod correspondingly, and a second roller rod is jointly arranged between the two connecting rods. A wire box is jointly installed on the outer side of the first roller rod and the outer side of the second roller rod through arranged clamping sleeves, a wire clamping piece is arranged on the inner side of the wire box, a base is fixedly installed on the edge of one end of the wire box, and U-shaped tables are installed on the upper surfaces of the two ends of the base correspondingly. And the problem that wire cutting is strenuous due to excessive adhesion of molten slag in the wire cutting process is solved.
Owner:SHEYANG ZETAO TEXTILE PRINTING & DYEING CO LTD

Automatic processing equipment for fiber winding bearing

The invention relates to the field of automatic processing of fiber-wound bearings, and discloses automatic processing equipment for fiber-wound bearings, which comprises a processing table, a fixing frame is fixedly mounted on one side of the top end of the processing table, and an unwinding roller is movably mounted on one side of the middle part of the fixing frame; two linear guide rails are fixedly mounted on the other side of the top end of the machining table, and the tops of the linear guide rails are movably mounted on the two sides of the bottom end of the transverse frame correspondingly. A first linear motion module is fixedly installed at the position, close to the lower portion of the transverse frame, of the top end of the machining table, the driving end of the first linear motion module is fixedly installed in the middle of the bottom end of the transverse frame, and a second tension control mechanism is arranged on the side, close to the fixing frame, of the top end of the transverse frame. Through innovative tension control, dynamic pressing and automatic linkage design, the quality stability, efficiency and adaptability of fiber winding processing are comprehensively improved, and reliable technical support is provided for batch production of high-performance fiber winding bearings.
Owner:DONGFANG HONGYE SPECIAL MATERIALS (SHANDONG) CO LTD

Fiber winding device for large-volume storage box

The invention relates to the field of carbon fiber container processing equipment, in particular to a large-volume storage box fiber winding device which comprises a rubber roller and a guide roller and further comprises a reversing roller, a tension adjusting roller and a first driving part, and a compensation roller capable of moving transversely is arranged on the side, facing the guide roller at the corresponding position, of the tension adjusting roller; the first driving part and the second driving part are arranged in such a way that when the first driving part drives the tension adjusting roller to move upwards, the second driving part drives the compensation roller to move so as to drive the carbon fiber to move towards the side edge of the corresponding position of the tension adjusting roller, and when the first driving part drives the tension adjusting roller to move downwards, the compensation roller moves downwards. The second driving part drives the compensation roller to move so as to drive the carbon fiber to move away from the side edge of the corresponding position of the tension adjusting roller. The compensation roller is arranged on the side, facing the rubber roller, of the tension adjusting roller, and the problems existing in the prior art are effectively solved.
Owner:SHENYANG OUSHIDUN NEW MATERIAL TECH