WO2023103109A1 - Équipement de production pour tuyau composite renforcé de fibres - Google Patents

Équipement de production pour tuyau composite renforcé de fibres Download PDF

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Publication number
WO2023103109A1
WO2023103109A1 PCT/CN2021/141395 CN2021141395W WO2023103109A1 WO 2023103109 A1 WO2023103109 A1 WO 2023103109A1 CN 2021141395 W CN2021141395 W CN 2021141395W WO 2023103109 A1 WO2023103109 A1 WO 2023103109A1
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WIPO (PCT)
Prior art keywords
pipe
hole
air
production equipment
reinforced composite
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PCT/CN2021/141395
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English (en)
Chinese (zh)
Inventor
陈卫
汪鹏跃
孙华丽
李辉
翁志浩
李倩
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公元股份有限公司
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Publication of WO2023103109A1 publication Critical patent/WO2023103109A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
    • B29C70/525—Component parts, details or accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
    • B29C70/525—Component parts, details or accessories; Auxiliary operations
    • B29C70/526—Pultrusion dies, e.g. dies with moving or rotating parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
    • B29C70/525—Component parts, details or accessories; Auxiliary operations
    • B29C70/528—Heating or cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups

Definitions

  • the invention belongs to the technical field of composite pipes, and relates to production equipment for fiber-reinforced composite pipes.
  • Existing fiber-reinforced composite pipes are mainly continuous fiber-reinforced composite pipes.
  • the conventional technology is to first extrude the tube blank through an extruder, and then wind the reinforcing fiber on the tube blank through a winding machine. surface, and bonded by adhesive to form a reinforced fiber composite pipe.
  • a plastic pipe forming line disclosed in Chinese patent literature (application number: 201811640324.6; application publication number: CN109664479A).
  • the composite pipe produced by this manufacturing process needs to be wound in multiple layers to ensure that the prepared pipe reaches the required strength.
  • the bonding layer formed by directly winding the surface of the inner pipe is very small, and at the same time
  • the sequential winding of fibers in each layer often results in limited or no bonding in the area where the fibers are in contact, resulting in weak bonding between layers and limited improvement in the quality, especially the strength, of the composite pipe.
  • fiber reinforced composite pipes that form a multi-layer structure by mixing chopped fibers into a hot melt and co-extruding through an extrusion die.
  • a gas channel is usually provided to introduce the external gas into the mold and communicate with the inside of the forming tube, so that the inside of the formed tube can maintain a certain pressure and avoid deformation of the tube.
  • the conventional design is to provide an inlet for the gas to enter on the side wall of the mold.
  • a co-extrusion die for rodent-resistant silicon core tubes disclosed in Chinese patent literature (application number: 202022849645.6) connects a confluence core to the front side of the forming core, so that the rodent-resistant silicon core tubes produced have a three-layer structure.
  • the inlet of the air inlet hole in the mold is located on the side wall of the mold, so that the gas can enter the mold to support the finished shaping pipeline and avoid pipeline deformation.
  • This mold structure cannot realize the extrusion of continuous fiber composite pipes, but can only mix chopped fibers into hot melt for multi-layer co-extrusion to form multi-layer fiber reinforced composite pipes. Compared with continuous fiber reinforced composite pipes , the pipe performance, especially the difference in shear strength is more obvious.
  • the purpose of the present invention is to solve the above problems in the existing technology and propose a production equipment for fiber reinforced composite pipes.
  • the technical problem solved by the present invention is to improve the strength of fiber reinforced composite pipes while ensuring the stability of product dimensions.
  • a production equipment for fiber reinforced composite pipes including a molding die, the molding die includes an outer mold sleeve, a core mold, and a sizing tube connected to the outlet end of the outer mold sleeve The sleeve and the air inlet channel connected with the inner cavity of the sizing sleeve, a molding cavity is formed between the outer mold sleeve and the mandrel, it is characterized in that the production equipment also includes an outer tube and a reinforcing fiber coating The winding machine on the outer peripheral wall of the outer tube, the tail end of the outer tube extends into the outer mold sleeve from the inlet end of the outer mold sleeve, and the outer peripheral wall of the outer tube and the inner peripheral wall of the outer mold sleeve are formed and formed An annular cavity directly facing the cavity, and an air intake pipe communicating with the air intake passage is also arranged inside the outer tube.
  • the function of the forming cavity in the forming mold is to allow the molten material to flow through, so that a pipe with the required cross-sectional shape is formed in the forming cavity.
  • a tractor In the process of pipe production, it is usually necessary to use a tractor to pull the formed pipe forward, so that the pipe can continuously protrude from the forming mold to realize continuous production.
  • the production equipment is equipped with an outer tube. During manufacture, the continuous reinforcing fiber is wound on the outer peripheral wall of the outer tube by relying on the existing fiber winding device such as a winding machine.
  • the air inlet channel is connected with the inner cavity of the sizing sleeve, so that the gas in the air inlet channel can reach the inner hole of the composite pipe, forming a support for the pipe to avoid deformation of the inner bed of the pipe, thereby ensuring the stability of the product size sex.
  • the air intake pipe is provided in the outer pipe, and the air intake pipe is used to supply gas to the air intake passage, so as to ensure that the reinforcing fiber wound on the outer pipe can enter the molding mold smoothly, so that the molten material and
  • the continuous reinforcing fiber is formed into a composite pipe in one step in the forming mold, so that the molten material can be compatible and infiltrated with the reinforcing fiber in the forming mold, so the bonding effect is better and the strength is higher, and there is no composite pipe produced by existing equipment.
  • the weak interlayer bonding of the pipe causes the strength of the pipe to weaken. Therefore, the continuous fiber reinforced composite pipe produced by this production equipment has better strength.
  • the air inlet pipe and the outer pipe are parallel to each other, a through hole is opened on the side wall of the head end of the outer pipe, and the inlet end of the air inlet pipe passes through the through hole.
  • outer tube A through hole is set at the head end of the outer tube, so that the inlet end of the intake pipe passes through the outer tube through the through hole.
  • the production equipment also includes an extruder and a core tube pierced in the outer tube.
  • the outlet end of the core tube extends into the forming mold and the outlet of the core tube faces the flow divider.
  • the molten material extruded by the extruder is delivered to the molding die through the core tube located in the outer tube, and such a delivery method will not affect the winding of the reinforcing fiber on the outer peripheral wall of the outer tube.
  • the outlet of the core tube is directly opposite to the splitter, so that the splitter can diffuse the molten material flowing out of the core tube radially to the surroundings, which facilitates the heating and plasticization of the molten material, improves the bonding effect of the reinforcing fiber and the molten material, and then improves the strength of the pipeline .
  • the outlet end of the core pipe is also fixedly provided with a connecting sleeve, the outer peripheral wall of the connecting sleeve is against the inner peripheral wall of the outer pipe, and the connecting sleeve is provided with An insertion hole communicated with the air intake channel, the outlet end of the air intake pipe is inserted into the insertion hole.
  • the function of the connecting sleeve is to support the outlet end of the core tube, so that the core tube is stable; the second is to set the socket hole on the connecting sleeve to fix the outlet end of the air intake pipe, and to make the air intake pipe and the air intake channel Third, the connecting sleeve can also be used for fixing the splitter, so that there is a gap between the outer peripheral wall of the splitter and the inner peripheral wall of the outer mold casing, and the splitter is suspended relative to the outer mold casing, so that the reinforcing fiber can be smoothly through the forming die.
  • an axial hole is opened at the front end of the mandrel, and the flow divider includes a cylindrical connection part and a flow splitter set in the inner hole of the connection part.
  • the column is plugged into the axial hole, and the axial hole is also pierced with a fastener that is screwed to the shunt column and securely connects the shunt to the mandrel.
  • the connecting part of the flow divider is connected to the connecting sleeve through several bolts, and the connecting part and the shunt post are connected through several connecting pieces.
  • the fasteners are bolts
  • the splitter column is axially provided with threaded holes that are threadedly connected with the fasteners, and the axial center hole has a stepped surface. and the second step surface, the head of the fastener abuts on the first step surface, and the end surface of the splitter column abuts on the second step surface.
  • the fastener presses the step surface 2 on the end face of the shunt column, realizing the connection of the mandrel and the shunt.
  • Such a connection method is not only convenient for assembly, but also has good connection stability.
  • the inside of the mandrel has an air accumulator chamber connected to the air intake channel, the air accumulator chamber has an opening on the rear end face of the mandrel, and the upper cover of the opening
  • a cover plate is fixedly connected with the mandrel, and the cover plate is provided with a ventilation hole for connecting the air storage cavity and the inner cavity of the sizing sleeve.
  • the gas in the gas storage chamber enters the inner cavity of the sizing sleeve through the vent hole.
  • the setting of the gas storage chamber can ensure that there is always enough gas to be transported into the sizing sleeve, and then ensure that the composite pipe can always be stably supported by the gas, avoid deformation of the inner bed of the pipe, and then ensure that the manufactured composite pipe has excellent dimensional stability .
  • the air inlet channel includes an axial through hole set on the fastener, and an axial air hole I set on the splitter column and connected to the axial through hole, so
  • the first axial air hole and the axial through hole are arranged concentrically, and the connecting part is also provided with the second axial air hole parallel to the first axial air hole, and the passage between the first axial air hole and the second axial air hole
  • the radial air holes are in communication, and the second axial air hole is in communication with the outlet of the intake pipe.
  • a core pipe is arranged in the outer pipe, so the air intake pipe can only be arranged on one side of the core pipe.
  • the gas in the intake pipe can flow to the center of the mandrel through the radial air holes, and finally be discharged from the axial through holes on the fastener.
  • This design makes the outlet of the air intake channel located at the core On the axis of the mold, it is beneficial to improve the balance of the gas pressure inside the gas storage chamber and the sizing sleeve, that is, to avoid the situation of large air pressure deviation at different positions, so that the pressure of the composite pipe is balanced and the dimensional stability is guaranteed.
  • an air plug is also provided in the sizing sleeve, and the air plug is fixedly connected to the cover plate through a pull rod.
  • the outer peripheral wall of the air plug and the sizing sleeve There is a gap between the inner peripheral walls of the air plug, and the end face of the air plug facing the mandrel is in the shape of a cone.
  • the conical end surface design on the one hand, has a guiding effect, so that the composite pipe can pass through the gap between the gas plug and the sizing sleeve smoothly; on the other hand, when the gas reaches the gas plug, it will impact the end surface of the gas plug , so that the gas will be guided by the end surface to diffuse to the surroundings, so that the gas can be used to better support the inner peripheral wall of the composite pipe, and ensure that the manufactured composite pipe has excellent dimensional stability.
  • the outer peripheral wall of the core pipe is covered with several support sleeves, the outer peripheral wall of the support sleeve is against the inner peripheral wall of the outer pipe, and the several support sleeves are placed along the core pipe.
  • the length direction of the tubes is arranged at intervals in sequence, and each support sleeve is provided with a through hole for the intake pipe to pass through.
  • the molding equipment of this composite pipe is formed into a composite pipe by one-step molding of the molten material and continuous reinforcing fibers in the molding mold, so that the molten material can be compatible and infiltrated with the reinforcing fibers in the molding mold, so the bonding effect is better.
  • the strength is higher, and there is no problem of weakening the strength of the pipeline caused by the weak interlayer bonding existing in the composite pipeline produced by the existing equipment, so the produced continuous fiber reinforced composite pipeline has better strength.
  • the air intake pipe is arranged in the outer pipe, and the air intake pipe is used to supply gas to the air intake channel, and the air inlet pipe is passed through the head end of the outer pipe, so at least two sets can be arranged in sequence along the length direction of the outer pipe.
  • the winding machine is used to wind the reinforcing fiber to the outer pipe at different angles, so as to increase the thickness of the composite pipe limit reinforcement layer, thereby increasing the strength of the composite pipe.
  • Fig. 1 is a three-dimensional structure diagram of the production equipment.
  • Fig. 2 is a partial sectional view of the production equipment.
  • Fig. 3 is a partial sectional view II of the production equipment.
  • Fig. 4 is an enlarged view at point A in Fig. 3 .
  • Fig. 5 is a three-dimensional structure diagram of a flow divider.
  • the production equipment of the fiber reinforced composite pipe includes a molding die 1, a winding machine 5, an extruder 9, an outer pipe 4 and a core pipe 10 pierced in the outer pipe 4, etc.
  • the molding die 1 includes an outer mold casing 1a, a core mold 1b, a sizing sleeve 1c connected to the outlet end of the outer mold casing 1a, and an inlet connected to the inner cavity of the sizing sleeve 1c.
  • the air channel 2, the forming cavity 3 is formed between the outer mold casing 1a and the core mold 1b, and the head end of the outer tube 4 and the inlet end of the core tube 10 are connected to the support frame 15.
  • the tail end of the outer tube 4 extends into the outer mold sleeve 1a from the inlet end of the outer mold sleeve 1a, and an annular cavity facing the molding cavity 3 is formed between the outer peripheral wall of the outer tube 4 and the inner peripheral wall of the outer mold sleeve 1a 6.
  • An air intake pipe 7 communicating with the air intake channel 2 is also provided inside the outer pipe 4 .
  • the front end of the mandrel 1b is provided with an axial center hole 1b1, and the front end of the mandrel 1b is connected with a flow divider 1d, and the outlet end of the core tube 10 is also fixedly provided with a connecting sleeve 11, the connecting sleeve
  • the outer peripheral wall of 11 leans against the inner peripheral wall of the outer pipe 4, and the connecting sleeve 11 is provided with an insertion hole 111 communicating with the air inlet passage 2, and the outlet end of the air inlet pipe 7 is inserted in the insertion hole 111, and the core pipe
  • the inlet end of 10 communicates with the extruder 9 through the discharge pipe 13, the outlet end of the core tube 10 extends into the molding die 1 and the outlet of the core tube 10 faces the flow divider 1d.
  • the flow divider 1d includes a cylindrical connection part 1d1 and a shunt post 1d2 arranged in the inner hole of the connection part 1d1, and the connection part 1d1 and the shunt post 1d2 are connected by several connecting pieces 1d3.
  • connection part 1d1 of the flow divider 1d is connected to the connection sleeve 11 by several bolts.
  • the splitter column 1d2 is plugged into the axial center hole 1b1, and the axial center hole 1b1 is also pierced with a fastener that is screwed to the splitter column 1d2 and firmly connects the splitter 1d to the mandrel 1b 16.
  • the fastener 16 is a bolt, and a threaded hole 12 threaded with the fastener 16 is provided on the shunt column 1d2 in the axial direction, and the axial hole 1b1 has a step surface 1b2 and a step surface 2 1b3.
  • the head of 16 abuts against the first step surface 1b2, and the end surface of the splitter column 1d2 abuts against the second step surface 1b3.
  • the fastener 16 presses the stepped surface 1b3 against the end surface of the splitter column 1d2, realizing the connection between the mandrel 1b and the splitter 1d.
  • Such a connection method is not only convenient for assembly, but also has good connection stability.
  • the inside of the core mold 1b has an air storage chamber 1b4 that communicates with the outlet of the air intake passage 2.
  • the air storage chamber 1b4 has an opening 1b5 located on the rear end face of the core mold 1b.
  • the opening 1b5 is covered with a core
  • the mold 1b is fixedly connected to the cover plate 1e, and the cover plate 1e is provided with a vent hole 1e1 that communicates the air storage chamber 1b4 with the inner cavity of the sizing sleeve 1c.
  • the air intake passage 2 includes an axial through hole 21 provided on the fastener 16, an axial air hole 22 provided on the splitter column 1d2 and connected to the axial through hole 21, and an axial air hole 22 and the axial through hole 22.
  • Holes 21 are set coaxially, and the connecting portion 1d1 is also provided with axial air hole 2 23 parallel to axial air hole 1 22, axial air hole 1 22 and axial air hole 2 23 are connected through radial air hole 24, and the axial The outlet of the air hole two 23 is connected with the intake pipe 7 .
  • the end face of the die 1b is tapered.
  • each support sleeve 14 is provided with a via hole 141 through which the intake pipe 7 passes.
  • the quantity of support sleeve 14 can increase or decrease according to actual conditions, as setting two, four or five support sleeves 14.
  • Intake pipe 7 and outer pipe 4 are parallel to each other, and the side wall of outer pipe 4 head end is provided with through hole 8, and the entrance end of air inlet pipe 7 passes outer pipe 4 by through hole 8, and such design makes whole outer pipe 4 basically Both of them can be used for winding the reinforcing fibers, so that at least two winding machines 5 can be arranged sequentially along the length direction of the outer tube 4 to wind the reinforcing fibers onto the outer tube 4 at different angles.
  • the formed pipeline is pulled forward by a tractor, so that the pipeline is continuously protruded from the forming mold 1 to realize continuous production.
  • Tractor is prior art, not shown in the figure.
  • the forming equipment is equipped with an outer tube 4, and relies on existing fiber winding devices, such as a winding machine 5 and an axial yarn feeding structure, to wrap continuous reinforcing fibers on the outer peripheral wall of the outer tube 4 during manufacture.
  • the axial yarn feeding structure covers the outer peripheral wall of the outer tube 4 with a number of continuous reinforcing fibers arranged axially along the outer tube 4 to form an axial fiber layer, and the winding machine 5 winds the continuous reinforcing fibers around the shaft in the circumferential direction. towards the outside of the fiber layer.
  • the reinforcing fiber Since the annular cavity 6 through which the reinforcing fiber passes is formed between the outer peripheral wall of the outer tube 4 and the inner peripheral wall of the outer mold casing 1a, the reinforcing fiber will continuously pass through the molding cavity of the molding die 1 under the action of the tractor Road 3, intersects with the molten material to form a composite state, and finally forms a fiber-reinforced composite pipe that protrudes from the rear end of the forming mold 1, and then passes through the sizing sleeve 1c for sizing, the pipe cooling equipment for shaping, and then connects to the tractor.
  • the air inlet channel 2 communicates with the inner cavity of the sizing sleeve 1c, the gas in the air inlet channel 2 can reach the inner hole of the composite pipe, forming a support for the pipe to avoid deformation of the inner bed of the pipe, thereby ensuring the stability of the product size sex.
  • this article uses 1, forming mold; 1a, outer mold sleeve; 1b, mandrel; 1b1, axial hole; 1b2, step surface one; 1b3, step surface two; 1b4, air storage cavity; 1b5, opening ;1c, sizing sleeve; 1d, flow divider; 1d1, connecting part; 1d2, shunt column; 1d3, connecting piece; 1e, cover plate; 1e1, air hole; 1f, air plug; Channel; 21, axial through hole; 22, axial air hole one; 23, axial air hole two; 24, radial air hole; 3, forming cavity; 4, outer tube; 5, winding machine; 6, annular cavity 7, air intake pipe; 8, through hole; 9, extruder; 10, core pipe; 11, connecting sleeve; 111, socket hole; 12, threaded hole; 13, discharge pipe; 14, support sleeve; 141.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • General Engineering & Computer Science (AREA)
  • Moulding By Coating Moulds (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

La présente invention concerne un équipement de production pour un tuyau composite renforcé de fibres, comprenant une matrice de moulage (1), la matrice de moulage (1) comprenant un manchon de matrice externe (1a), une matrice centrale (1b), une filière de calibrage (1c) raccordée à l'extrémité de sortie du manchon de matrice externe (1a), et un canal d'entrée d'air (2) raccordé à la cavité interne de la filière de calibrage (1c), une cavité de moulage (3) étant formée entre le manchon de matrice externe (1a) et la matrice centrale (1b), et comprenant en outre un tuyau externe (4) et une machine d'enroulement (5) apte à envelopper des fibres de renfort sur la paroi périphérique externe du tuyau externe (4), l'extrémité arrière du tuyau externe (4) s'étendant dans le manchon de matrice externe (1a) à partir de l'extrémité d'entrée du manchon de filière externe (1a), une cavité annulaire (6) faisant face directement à la cavité de moulage (3) étant formée entre la paroi périphérique externe du tuyau externe (4) et la paroi périphérique interne du manchon de matrice externe (1a), et un tuyau d'entrée d'air (7) communiquant avec le canal d'entrée d'air (2) étant disposé à l'intérieur du tuyau externe (4). L'équipement de production peut améliorer la résistance du tuyau composite renforcé de fibres tout en garantissant la stabilité de la taille du produit.
PCT/CN2021/141395 2021-12-10 2021-12-25 Équipement de production pour tuyau composite renforcé de fibres WO2023103109A1 (fr)

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CN202111507980.0 2021-12-10
CN202111507980.0A CN114193800B (zh) 2021-12-10 2021-12-10 一种纤维增强复合管的生产设备

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CN114161745B (zh) * 2021-12-10 2022-12-02 公元股份有限公司 一种连续纤维增强复合管一步法成型的加工方法

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