WO2018004378A1 - Dispositif et procédé de production de tubes polymères renforcés - Google Patents

Dispositif et procédé de production de tubes polymères renforcés Download PDF

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Publication number
WO2018004378A1
WO2018004378A1 PCT/RU2016/000841 RU2016000841W WO2018004378A1 WO 2018004378 A1 WO2018004378 A1 WO 2018004378A1 RU 2016000841 W RU2016000841 W RU 2016000841W WO 2018004378 A1 WO2018004378 A1 WO 2018004378A1
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WO
WIPO (PCT)
Prior art keywords
circumferential reinforcement
roller
reinforcement
reinforcing elements
circumferential
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Application number
PCT/RU2016/000841
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English (en)
Russian (ru)
Inventor
Юрий Максимович ПЕТРОВ
Original Assignee
Юрий Максимович ПЕТРОВ
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Application filed by Юрий Максимович ПЕТРОВ filed Critical Юрий Максимович ПЕТРОВ
Publication of WO2018004378A1 publication Critical patent/WO2018004378A1/fr

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Classifications

    • 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
    • F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/24—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using threads
    • 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
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/127—Rigid pipes of plastics with or without reinforcement the walls consisting of a single layer
    • F16L9/128—Reinforced pipes

Definitions

  • the invention relates to a manufacturing technology of reinforced seamless products with a polymer matrix.
  • the specified technology includes the continuous production of composite polymer pipes by extrusion.
  • a metal-polymer pipe with combined reinforcement is known, which is obtained as follows. Spiral wire elements with a predetermined pitch and interference are wound on longitudinally reinforcing elements of the longitudinally reinforcing elements of the mandrel pipe evenly installed around the circumference of the polymer mandrel pipe. As winding, the longitudinal and spiral reinforcement elements are welded together at the intersection points by the electric contact method using welding rollers rotated around the longitudinal axis of the spiral elements to obtain a reinforcing frame. At the next stage, elastic spiral elements made of a metal or polymer cable are additionally wound onto the frame obtained without welding them with longitudinal wire elements.
  • Elastic spiral elements made of a metal or polymer cable are subjected to an interference fit to load up to a predetermined design value within the elastic deformation zone, which ensures the operation of the cable as part of the strength of a metal-plastic pipe.
  • the resulting semi-finished product containing a strength enhancer enters the molding extruder, where the molten polymer is fed, and the final forming a matrix of a metal-polymer pipe in which a loaded spiral element is placed in the form of a cable with a selected interference fit to strengthen the strength of the pipes and increase their load capacity.
  • the mentioned method is very laborious, it is carried out in the form of an intermittent multi-stage process, which increases the cost of pipes and reduces the productivity of the process of their manufacture.
  • the indicators of long-term strength during operation are not guaranteed, since it is not indicated how the strength amplifier is fixed at the ends of the pipe, without which the polymer matrix of the pipe walls will not be able to hold the stretched cable in a tension state, since the adhesion between the hardener and matrix is small. Without proper fastening, the stretched cable will return to its original state under the action of elastic forces, and the specified hardening will be lost.
  • the resulting assembly of materials is passed through a squeeze die, and then it is introduced into the second extruder to form the outer layer of the matrix.
  • the resulting assembly is coated with low density polyethylene.
  • thermosetting resin is pre-mixed with a photopolymerization initiator, a catalyst and a polymerization accelerator and continuously introduced into the impregnation bath through a pump.
  • pinch rollers installed in the impregnation bath.
  • the roving is aligned axially along the surface of the mandrel tube and a roving with a binder is applied to the mandrel using a die.
  • the glass fibers are spirally wound around the surface of the axially reinforced mandrel pipe using a winding unit.
  • the winding unit contains a faceplate on which spools with a supply of fiberglass for winding the circumferential reinforcement are installed around the circumference.
  • the faceplate is mounted to rotate around the longitudinal axis of the manufactured composite pipe.
  • the winding angle can vary from 30 to 90 degrees by changing the feed rate of the extruded mandrel pipe and the rotation speed of the faceplate of the winding assembly.
  • the assembly After spiral winding of glass fibers of circumferential reinforcement, the assembly is subjected to compression impregnation. As a result of the crimping, the resin will start to flow out of the glass roving of the longitudinal reinforcement and impregnates the glass fibers of the circular reinforcement laid in a spiral. Then carry out the processing of the assembly by ultraviolet radiation. After that, the assembly is sent to sequentially installed infrared radiation furnaces for curing the thermosetting resin of the binder at a temperature in the range from 80 to 120 ° C to activate the effects of the accelerator and catalyst on the polymerization of the binder. Then, using a second extruder, a thermoplastic resin coating is applied to the assembly surface, the cooling process is carried out to obtain a finished three-layer composite pipe. The finished composite pipe is continuously pulled by a pulling device and automatically cut to a predetermined length.
  • the composite pipes of this invention have high strength, chemical resistance and abrasion resistance.
  • the disadvantage of the described method is the complex and energy-intensive design of the winding unit of the circular reinforcement, which should ensure the circulation around the longitudinal axis of the formed product of the entire supply of fiberglass material, designed to form a circumferential frame for at least one day of continuous operation. If you reduce the supply of material on the spools of the faceplate, then the number of stops of the processing line will increase significantly due to the rapid exhaustion of consumables for the transverse reinforcement of composite pipes. This circumstance reduces the indices of continuity of the manufacturing process and increases the amount of finished product waste arising from equipment shutdowns.
  • a plant for manufacturing reinforced three-layer plastic pipes is guarded, containing an extruder installed in the technological sequence for manufacturing a pipe billet, a pulling, cutting and receiving device. Moreover, between the extruder for the manufacture of the tube billet and the pulling device, a winding unit for applying reinforcing tape layers to the tube billet and an additional extruder unit for applying a protective coating to the formed reinforcing layer are successively installed.
  • a disadvantage of the known device is a design feature of the block of the district winding, which provides for rotation around the axis of the manufactured product of a significant supply of material for the reinforcing tape.
  • the description of the utility model mentioned indicates that the winding unit may be two or four sectional, with each section comprising: a winding device with a bobbin mounted on a rotating faceplate; floating centralizer; belt end mechanism and tunnel kiln.
  • a pipe billet is formed from granular polyethylene PE-80 by an extruder.
  • the tube billet is pulled by a hauling device through a calibrating vacuum and cooling bath, after which it is fed to the winding unit, where reinforcing tapes are applied to the tube billet by means of a cross-shaped spiral winding to form a reinforcing layer.
  • reinforcing tapes are applied to the tube billet by means of a cross-shaped spiral winding to form a reinforcing layer.
  • the surface of the applied layer of tape is melted in tunnel kilns with an infrared heater for 3 s at a temperature of 350 ° C.
  • the tape should be tensioned and directed at an angle of 55 ⁇ 5 °, which is provided by centering and ending devices.
  • a winding angle of + 55 ° and -55 ° ensures an optimal balance of peripheral and axial loads.
  • the speed of rotation of the faceplates is regulated depending on the speed of movement of the workpiece.
  • the pipe billet is fed to the second extruder block, where a protective coating is applied to the formed reinforcing layer, after which the finished pipe is pulled by the hauling device for cooling and into the cutting device, where measured length pipes are cut into the receiving device from which the pipes are unloaded for shipment to the consumer or storage.
  • the disadvantage of the described technical solution is the increased energy consumption of the installation and the high cost of production due to the need to often stop the production line to replenish the supply of reinforcing tape on the winding block. At the same time, a significant amount of the product is cut off in marriage.
  • the closest analogue of the proposed invention is a method for the continuous manufacture of a metal-polymer reinforced pipe and a device for its implementation, disclosed in the description of patent RU2492047, IPC: B29C47 / 02, published on 09/10/2013.
  • the specified patent protects the method of continuous production of metal-polymer reinforced pipe by extrusion b molding, including the supply of the polymer melt from the extrusion head into the forming cavity formed by the cooled mandrel and the outer forming sleeve, while the welded reinforcing cage made using at least one roller electrode is fed into the said cavity.
  • a heat-resistant non-metallic sleeve is installed in front of the mandrel, the inner and outer surfaces of the pipe being formed are subjected to cooling, and during welding of the reinforcing cage shock impulses are transmitted to the roller electrode, synchronized with the moment the longitudinal and transverse reinforcement elements intersect with each other, as well as with the moment the current pulse is applied to roller electrode.
  • the indicated roller electrode is used as a means for forming a spiral from the elements of the transverse reinforcement, the roller of which provides constant clamping of the elements of the transverse reinforcement to the elements of the longitudinal reinforcement with effort from the hydraulic drive.
  • a device for the continuous manufacture of the aforementioned metal-polymer reinforced pipe comprises an extruder with an extrusion head having a channel for outputting the polymer melt into a forming cavity formed by a cooled mandrel and an external forming sleeve, a welding unit covering the extrusion head and connected with coils for accommodating longitudinal and transverse reinforcement elements, as well as with guiding means for supplying reinforcement to the welding zone, cooling system, as well as the pulling mechanism and the cutting device, p memory location sequentially in the direction of movement formed by a metal-pipe.
  • the mandrel is mounted on the extrusion head through a sequentially mounted divider and heat-resistant non-metallic sleeve
  • the welding unit contains at least one roller electrode connected to the clamping device and with the percussion mechanism connected to the hydraulic actuator for transmitting the pressing force and shock pulses from the hydraulic actuator to the roller an electrode during welding of elements of longitudinal and transverse reinforcement, means for synchronizing shock pulses with the moment of intersection of the elements between them Aulnay and transverse reinforcement as well as the current pulse supply torque to the roller electrode.
  • Means for the formation of a spiral from the elements of the transverse reinforcement is the specified roller electrode, the roller of which is mounted with the possibility of rotation around its axis and around the axis of the reinforcing frame, as well as with the possibility of pressing the elements of the transverse reinforcement to the elements of longitudinal reinforcement with the force of the hydraulic drive.
  • the cooling system additionally includes a refrigerant generator located outside of the forming sleeve, and a plug with a valve installed inside the formed metal-polymer pipe with the formation of a closed cavity in it.
  • the disadvantages of the method and device selected as a prototype are the complexity and energy consumption of the operation of forming a circular reinforcement of a metal-polymer pipe.
  • Another disadvantage of the method and device selected as a prototype is the difficulty of using tape materials for the circumferential reinforcement of composite pipes, since the kinematics of supplying consumables for transverse reinforcement involves the use of both transverse bending and longitudinal bending of the circumferential reinforcement.
  • the claimed group of inventions is aimed at solving the problem of creating a new technology for the formation of district reinforcement of seamless products.
  • the technical result is to improve the quality of finished products while reducing their cost, reducing the energy intensity of production, as well as simplifying equipment due to:
  • the claimed method of forming the circumferential reinforcement of a hollow hollow product including the operation of spiral winding of the circumferential reinforcement, characterized in that before the spiral winding operation, the circumferential reinforcement is fed to the bypass roller, configured to provide at least one turn of the circumferential reinforcement along the surface of the bypass coaxially with the spiral coils winding.
  • a seamless hollow product receives a product with a cross-section of a round shape.
  • a shaped tubular product with a cross-section of a curved shape is obtained.
  • a tubular product with a cross-section of a rounded shape with a flat tray is obtained as a seamless hollow product.
  • spiral winding is preferably carried out on the longitudinal reinforcing elements to obtain a lattice reinforcing frame.
  • the circumferential reinforcing elements after the bypass roller are sent to a stacker containing a guide roller and a pinch roller mounted on the drum with the possibility of rotation around the longitudinal axis of the formed composite product and with the ability to implement a path along a generatrix defined by the shape of the profile of the conductor on which the longitudinal reinforcement is laid moreover, the circumferential reinforcing elements are sequentially fed first to the guide roller and then to the stacker pressure roller for performing operations and spiral winding.
  • a reinforced polymer pipe is obtained with a different choice of reinforcing materials.
  • the claimed method as a hollow hollow product makes it possible to produce a reinforced polymer pipe, the circumferential reinforcement and longitudinal reinforcing elements of which are made on the basis of non-metallic materials, for example, on the basis of high-modulus organic fibers or on the basis of fibers of glass, basalt, carbon, and other types of mineral fibers.
  • the claimed method makes it possible to produce a reinforced polymer pipe as a seamless hollow product, the circumferential reinforcement and longitudinal reinforcing elements of which are made on the basis of metal materials to obtain a metal-polymer reinforced pipe.
  • a combined metal-polymer reinforced pipe is obtained, the circumferential reinforcement of which is based on metal materials, and the longitudinal reinforcing elements are made on the basis of non-metallic materials. Or vice versa -
  • the circumferential reinforcement of the metal-polymer reinforced pipe is based on non-metallic materials, and the longitudinal reinforcing elements are based on metal materials.
  • a method of obtaining a reinforced polymer pipe includes the following operations: spiral winding of the circumferential reinforcement onto longitudinal reinforcing elements, joining them at intersections to obtain a lattice reinforcing carcass and subsequent extrusion coating of the polymer matrix on the carcass to form the pipe body, cooling and cutting the pipe into sections of a given lengths.
  • the peripheral reinforcement is fed to the bypass roller, configured to provide at least one turn of the circumferential reinforcement on the surface of the specified roller coaxially with the spiral windings, and after exiting the bypass roller, the circumferential reinforcement is fed first to the guide roller, then on the pressure roller of the stacker.
  • both the longitudinal reinforcing elements and the circumferential reinforcement are made on the basis of non-metallic fibers impregnated with a liquid polymer binder, then after the impregnation both the longitudinal reinforcing elements and the circumferential reinforcement are passed through the forming hot die and through the heating zone for preliminary incomplete polymerization of the surface layer of the binder.
  • the longitudinal reinforcing elements are guided into the formation zone of the carcass through holes in the bearing support of the bypass roller, while the longitudinal reinforcing elements and the circumferential reinforcement are interconnected at the points of mutual intersection by the pressure roller by squeezing the liquid binder onto the surface and wetting the joint; after which the reinforcing frame is fed into the second heating zone, where the final bonding of the frame is carried out by the final polymerization of the binder.
  • the glued reinforcing cage is guided into the extruder forming cavity formed by the mandrel and the outer forming sleeve, while the polymer is injected through an offset head mounted above the mandrel.
  • a method for producing a metal-polymer reinforced pipe including spiral winding of the circumferential reinforcement onto the longitudinal reinforcing elements, connecting them at intersections to produce a lattice reinforcing frame and subsequent extrusion deposition on the specified frame of the polymer matrix to form the pipe body, cooling and cutting the pipe into segments of a given length.
  • the peripheral reinforcement is fed to the bypass roller, configured to provide at least one turn of the circumferential reinforcement on the surface of the specified roller coaxially with the spiral windings, and after exiting the bypass roller, the circumferential reinforcement is fed first to the guide roller and then to the pressure roller the stacker roller, the circumferential reinforcement and the longitudinal reinforcing elements are based on metal materials, and the longitudinal reinforcing elements in the ation carcass is directed through holes in a support bearing pulley, and a connection between the longitudinal reinforcing elements and the circumferential reinforcement in the areas of mutual intersection is performed under the action of the pressure roller due to welding them by executing the pressure roller as a welding roller electrode.
  • shock pulses are transmitted to the roller electrode, synchronized with the moment the longitudinal reinforcing elements intersect with the circumferential reinforcement, as well as with the moment of applying a current pulse to the roller electrode, the welded reinforcing cage is sent to the extruder forming cavity formed by the mandrel and the outer forming sleeve, while the injection of the polymer is carried out through the offset head mounted above the mandrel.
  • a method for producing a combined metal-polymer reinforced pipe comprising spiral winding of the circumferential reinforcement onto the longitudinal reinforcing elements, connecting them at the intersections to obtain a lattice reinforcing carcass and subsequent extrusion deposition of the polymer matrix on the specified carcass to form the pipe body, cooling and pipe cutting into segments of a given length.
  • the circumferential reinforcement is made on the basis of non-metallic materials
  • the longitudinal reinforcing elements are made on the basis of metallic materials.
  • the non-metallic reinforcement is impregnated with a liquid polymer binder; after the impregnation, the peripheral reinforcement is passed through a hot forming die and then through the heating zone for preliminary incomplete polymerization of the surface layer of the binder, then the district reinforcement is fed to the bypass roller, configured to provide at least one turn of the circumferential reinforcement along the surface of the specified roller coaxially with the spiral windings, and after the exit from the bypass roller, the reinforcement is subsequently fed first to the guide roller, then to the stacker pressure roller.
  • the longitudinal reinforcing elements in the zone of the formation of the frame is directed through the holes in the bearing support of the bypass roller.
  • connection between the longitudinal reinforcing elements and the circumferential reinforcement at the points of mutual intersection is carried out under the action of the pressure roller by squeezing the liquid binder onto the surface and wetting the joint with it; after which the reinforcing frame is fed into the second heating zone, where the final bonding of the frame is carried out by the final polymerization of the binder.
  • the glued combined reinforcing cage is sent to the extruder forming cavity formed by the mandrel and the outer forming sleeve, while the polymer is injected through the offset head mounted above the mandrel.
  • the method of producing a combined metal-polymer reinforced pipe includes spiral winding of the circumferential reinforcement onto the longitudinal reinforcing elements, joining them at the intersections to obtain a lattice reinforcing carcass, and then extruding the polymer matrix onto said carcass to form the pipe body, cooling and cutting the pipe into segments of a given length.
  • Circumferential reinforcement is made on the basis of metal materials, and longitudinal reinforcing elements are made on the basis of non-metallic materials.
  • longitudinal non-metallic reinforcing elements are impregnated with a liquid polymer binder, passed through a hot forming die, then through a heating zone for preliminary incomplete polymerization of the surface layer of the binder, and then into the formation zone of the frame through the holes in the bearing support of the bypass roller to the conductor.
  • connection between the longitudinal metal reinforcing elements and the circumferential reinforcement at the points of mutual intersection is carried out under the action of the pressure a roller by extruding a liquid binder onto the surface and wetting the junction with it; after which the reinforcing frame is fed into the second heating zone, where the final bonding of the frame is carried out by the final polymerization of the binder.
  • the glued combined reinforcing cage is sent to the extruder forming cavity formed by the mandrel and the outer forming sleeve, while the polymer is injected through the offset head mounted above the mandrel.
  • the device for forming the circumferential reinforcement of a hollow-drawn hollow product includes a coil with the material of the circumferential reinforcement, a support for laying the circumferential reinforcement made in the form of a conductor, and a stacker of the circumferential reinforcement containing a guide roller and a pressure roller mounted on the faceplate with the possibility of rotation around the longitudinal axis of the formed products.
  • a bypass roller is installed in front of the conductor, which is rotatable around the longitudinal axis to provide at least one turn by the circumferential reinforcement on the surface of the specified roller coaxially with the spiral winding coils, and the coil with the circumferential reinforcement material is located on the side of the conductor with the possibility of feeding the circumferential reinforcement to the bypass roller in a direction approximately perpendicular to the longitudinal axis of the formed product.
  • the described device is a mandatory unit of any device for receiving a reinforced polymer seamless product according to the claimed technology.
  • a device for producing a reinforced polymer seamless hollow article includes coils with the material of longitudinal reinforcing elements and circumferential reinforcement, a support for laying circumferential reinforcement and moving longitudinal reinforcing elements, made in the form of a conductor, a stacker of circumferential reinforcing elements containing a guide roller and a pinch roller mounted on the faceplate with the possibility of rotation around the longitudinal axis of the device, an extruder and arranged sequentially in the alternating direction The expansion of the molded product cooling system, as well as pulling and cutting mechanisms.
  • the coil with the material of the circumferential reinforcement is located in front of the conductor to the side of it, and on on the axis of the conductor, a bypass roller is installed in front of it, configured to make at least one turn on the surface of the specified roller coaxially with the coils of the spiral winding, the extruder being installed on the side of the longitudinal axis of the device and equipped with an offset head configured to inject liquid polymer into the molding the extruder cavity formed by the mandrel and the outer forming sleeve mounted on the longitudinal axis of the device.
  • FIG. 1 and 3 show a device for producing a reinforced polymer seamless hollow product in the form of a pipe (top view and side view, respectively).
  • FIG. 2 shows a device for forming a circumferential reinforcement.
  • FIG. 4 shows examples of the cross-section of a reinforced polymer profile solid-drawn product obtained by the claimed method.
  • FIG. 5 shows a cross-sectional view of a device for producing a reinforced polymer pipe, made in front of the faceplate.
  • FIG. 6 shows a cross-sectional view of a square-shaped conductor of a device for producing a reinforced polymer seamless hollow shaped article made in front of the faceplate.
  • a die for forming a profile of longitudinal reinforcing elements.
  • a die for forming circumferential reinforcement 1 1. Coil with material of the circumferential reinforcement.
  • the claimed invention is as follows.
  • the method of forming the circumferential reinforcement in the manufacture of a seamless product is performed using the device shown in figure 2.
  • the method includes the operation of spiral winding the circumferential reinforcement 8 onto a support, which is a conductor 31, or a mandrel (in the case of a multilayer pipe), placed on a support pipe 3, mounted on supports along the longitudinal axis of the installation (shown in Fig. 3).
  • the peripheral reinforcement 8 is fed to the bypass roller 12, configured to provide the circumferential reinforcement 8 of at least one turn along the surface of the bypass roller coaxially with the turns of the subsequent spiral winding of the circular reinforcement 8 to the conductor 31.
  • the claimed method allows to obtain as a seamless product a hollow product with a cross section of a round or curved shape.
  • a few examples of the optimal cross-sectional view of finished products round, square and rounded with a flat tray, are shown in figure 4.
  • the use of the conductor 31 as a support for the spiral winding of the circumferential reinforcement 8 allows the manufacture of a lattice frame for reinforcing a seamless product.
  • the longitudinal reinforcing elements 2 are fed into the frame formation zone, indicated by the dotted line in FIG. 1, through the holes in the bearing 13 of the bypass roller bearing 12. Having passed through the holes of the bearing 13, the longitudinal reinforcing elements 2 fall into the longitudinal grooves of the conductor 31, along which before entering the head of the extruder 18.
  • the connection between the longitudinal reinforcing elements 2 and the circumferential reinforcement 8 at the points of mutual intersection is carried out on the jig 31 under the action of the pressure roller 7.
  • the circumferential reinforcing elements 8 after passing the bypass roller 12 are sent to a stacker containing a guide roller 14 and a pinch roller 7 mounted on the faceplate 15 with the possibility of rotation around the longitudinal axis of the formed product and with the possibility of trajectory along the generatrix defined by the shape of the conductor profile, as shown in FIG. 5 and 6.
  • the elements of longitudinal reinforcement 2 are laid, and the pressure roller 7 is pressed against them and connects the elements of longitudinal reinforcement 2 and the turns of the circumferential reinforcement 8. That is, the circumferential reinforcement 8 is subsequently fed first to the guide roller 14 then onto the pinch roller 7 of the stacker, which carries out the spiral winding operation.
  • circumferential reinforcement and longitudinal reinforcing elements made of metal and nonmetallic materials, including combining them with each other in various combinations.
  • a method of obtaining a reinforced polymer pipe includes a spiral winding of the circumferential reinforcement 8 on the longitudinal reinforcing elements 2, connecting them at the intersection to obtain a lattice reinforcing frame and subsequent extrusion deposition on the frame of the polymer matrix 24 to form the pipe body in the extruder head 18, cooling on the cooler 23 and cutting the pipe into segments of a given length by the cutting device 27.
  • the peripheral reinforcement 8 is fed to the bypass roller 12, configured to the implementation of the circumferential reinforcement 8 of at least one turn on the surface of the specified roller 12 coaxially to the coils of the spiral winding, and after exiting the bypass roller 12, the circumferential reinforcement 8 firstly fed to the guide roller 14, then to the stacker pressure roller 7.
  • the longitudinal reinforcing elements 2 in the zone of the formation of the frame are sent through holes in the bearing 13 of the bearing of the bypass roller 12, while the longitudinal reinforcing elements 2 and the circumferential reinforcement 8 are connected to each other at the points of their intersection under the action of the pressure roller 7 by squeezing liquid onto the surface of the reinforcement binder and wetting the junction; after which the reinforcing frame is fed into the second heating zone 17, where the final bonding of the frame is carried out by final polymerization of the binder.
  • the glued reinforcing cage is directed into the extruder forming cavity formed by the mandrel 21 and the outer forming sleeve 22, while the polymer is injected through the offset head 18 mounted above the mandrel 21.
  • a method of producing a metal-polymer reinforced pipe includes spiral winding of a circular reinforcement 8 onto longitudinal reinforcing elements 2, connecting them at intersections to obtain a lattice reinforcing carcass, and then extruding a polymer matrix onto said carcass to form a pipe body, cooling and cutting the pipe into segments of a given length.
  • the circumferential reinforcement 8 is fed to the bypass roller 12, configured to provide at least one turn of the circumferential reinforcement 8 along the surface of the specified roller 12 coaxially to the spiral windings, and after exiting the bypass roller 12, the circumferential reinforcement is fed first to the guide roller 14, then to the stacker pressure roller 7.
  • the clamping roller 7 of the stacker for connecting the metal circumferential reinforcement 8 with the metal longitudinal reinforcing elements 2 is made in the form of a welding roller electrode with the possibility of electrical contact welding.
  • the longitudinal reinforcing elements 2 are guided into the frame formation zone through the holes in the bearing 13 of the bypass roller 12, and the longitudinal reinforcing elements 2 and the circumferential reinforcement 8 are connected to each other at the points of mutual intersection by the pressure roller 7 due to their welding.
  • shock pulses are transmitted to the pressure roller electrode 7, synchronized with the moment of intersection of the longitudinal reinforcing elements 2 and the circumferential reinforcement 8, as well as with the moment of applying a current pulse to the pressure roller electrode 7.
  • the welded reinforcing cage is sent to the extruder forming cavity formed by the mandrel 21 and the outer forming sleeve 22, while the polymer is injected through the offset head 18 mounted above the mandrel 21.
  • the method of producing a combined metal-polymer reinforced pipe in the first embodiment includes the spiral winding of the circumferential reinforcement 8 onto the longitudinal reinforcing elements 2, joining them at the intersections to obtain a lattice reinforcing frame, and subsequent extrusion applying a polymer matrix to the specified frame to form the pipe body, cooling and cutting the pipe into segments of a given length.
  • the circumferential reinforcement 8 is made on the basis of non-metallic materials, and the longitudinal reinforcing elements 2 are made on the basis of metallic materials, then before the spiral winding operation, the non-metallic reinforcement 8 is impregnated with a liquid polymer binder, after the impregnation, the circumferential reinforcement 8 is passed through a hot forming die 10 and then through the heating zone 9 for preliminary incomplete polymerization of the surface layer of the binder, after which the peripheral reinforcement 8 is fed to the bypass roller 12, in made with the possibility of the circumferential reinforcement 8 at least one turn on the surface of the specified roller 12 coaxially to the coils of the spiral winding, and after leaving the bypass roller 12, the circumferential reinforcement 8 is subsequently fed first to the guide roller 14, then to the pressure roller 7 of the stacker.
  • the longitudinal reinforcing elements 2 are guided into the frame formation zone through the holes in the bearing 13 of the bypass roller 12.
  • the longitudinal reinforcing elements 2 and the circumferential reinforcement 8 are connected to each other at the points of mutual intersection on the conductor 31 under the action of the pressure roller 7 by pulling onto the surface a liquid binder from a circular reinforcement 8 and wetting the longitudinal reinforcing elements 2 at the junction; after which the reinforcing frame is fed into the second heating zone 17, where the final bonding of the frame is carried out by final polymerization of the binder;
  • glued combined reinforcing frame is sent to the extruder forming cavity formed by the mandrel 21 and the outer forming sleeve 22, while the polymer is injected through the offset head 18 mounted above the mandrel 21.
  • the method of producing a combined metal-polymer reinforced pipe in the second embodiment includes the spiral winding of the circumferential reinforcement 8 onto the longitudinal reinforcing elements 2, joining them at the intersections to obtain a lattice reinforcing carcass, and then extruding the polymer matrix onto the frame to form the pipe body, cooling and cutting pipes to segments of a given length.
  • the circumferential reinforcement 8 is based on metallic materials
  • the longitudinal reinforcing elements 2 are based on non-metallic materials.
  • the longitudinal non-metallic reinforcing elements 2 are impregnated with a liquid polymer binder, passed through a hot forming die 5, then through a heating zone 6 for preliminary incomplete polymerization of the surface layer of the binder.
  • the non-metallic reinforcing elements 2 enter the conductor 31 into the frame formation zone, where they are fed through the holes in the bearing 13 of the bypass roller bearing 12,
  • connection between the longitudinal non-metallic reinforcing elements 2 and the circumferential reinforcement 8 at the points of mutual intersection is carried out under the action of the pressure roller 7 by squeezing the liquid binder onto the surface and wetting the joint with it; after which the reinforcing frame is fed into the heating zone 17, where the final bonding of the frame is carried out by the final polymerization of the binder;
  • glued combined reinforcing frame is sent to the extruder forming cavity formed by the mandrel 21 and the outer forming sleeve 22, while the polymer is injected through the offset head 18 of the extruder mounted above the mandrel 21.
  • the device for forming the circumferential reinforcement of a hollow hollow product includes a coil 11 with the material of the circumferential reinforcement 8, a support for laying the circumferential reinforcement made in the form of a conductor 31, and a stacker of the circumferential reinforcement 8 containing a guide roller 14 and a pressure roller 7 mounted on the faceplate 15 with the possibility of rotation around the longitudinal axis of the formed composite product.
  • a bypass roller 12 is mounted coaxially with it, and a coil 1 1 with the material of the circumferential reinforcement 8 is placed on its side with the possibility of feeding the circumferential reinforcement 8 to the specified bypass roller 12 in a direction approximately perpendicular to the axis of the formed product and with the possibility of the implementation of the circumferential reinforcement 8 at least one turn on the surface of the specified roller 12 coaxially to the turns of the subsequent spiral winding.
  • a device for producing a reinforced polymer seamless hollow product including coils 1 and 11 with material longitudinal reinforcing elements and circumferential reinforcement, respectively, a support for laying circumferential reinforcement and moving longitudinal reinforcing elements, made in the form of a conductor 31, a stacker of circumferential reinforcing elements containing a guide roller 14 and a pressure roller 7 mounted on the faceplate 15 to rotate around the longitudinal axis of the device , the extruder 19 and the cooling system 23 located in series in the direction of movement of the formed product, as well as the pulling mechanisms 26 and the cut-off 27.
  • the coil 11 with the material of the circumferential reinforcement 8 is located on the side of the conductor 31, and the coils 1 with the longitudinal frame 2 are installed on the basis of the claimed device, as shown in FIG. 3, giving it stability with its weight (to reduce the mass of the base and for the compactness of the device).
  • a bypass roller 12 is mounted directly in front of it, configured to make at least one turn on the surface of said roller 12 coaxially with the coils of spiral winding, while the extruder 19 is installed on the side of the longitudinal axis of the device and is equipped with an offset head 18 made with the ability to inject liquid polymer into the molding cavity of the extruder formed by the mandrel 21 and the outer forming sleeve 22 mounted on the longitudinal axis of the device.
  • the formed and dried fiberglass bundles in the form of longitudinal reinforcing elements 2 are guided through holes in the bearing 13 of the bypass roller bearing 12 into the grooves of the conductor 31, through which they uniformly move in the longitudinal direction under the influence of the pulling device 27, entering the extrusion zone and moving further from the extruded pipe to exit the device.
  • the glued frame is included in the extrusion head to form a polymer matrix of the pipe walls.
  • the molten polymer in front of the mandrel 21 passes along the surface of the heat-resistant non-metallic washer 20, while the internal and external surfaces of the molded polymer reinforced pipe are cooled, which allows to obtain the desired structure of the polymer matrix with the desired ratio of the amorphous and crystalline phase.
  • refrigerant for external cooling of the molded polymer reinforced pipe, refrigerant is used, mainly in the form of fog, obtained from compressed air and cooling liquid in the cooler 23.
  • the plug 25 of the internal cooling system of the molded pipe is fixed to the end of the tube 4, which supplies coolant to its cavity.
  • a cutting device 27 is mounted that is movably mounted at a speed corresponding to the speed of movement of the molded polymer reinforced pipe.
  • a roller conveyor is arranged sequentially in the direction of movement of the formed polymer reinforced pipe, equipped with a system for collecting coolant and returning it to the cooling system (not shown in the drawing).
  • a distinctive feature of the claimed technology follows, providing for the storage of district reinforcement on the side of the device for continuous production of reinforced polymer pipes and the supply of peripheral reinforcement "from the side", that is, in the direction actually perpendicular to the longitudinal axis of the molded product, allows you to provide almost unlimited in time and volume continuous operation of the production line.
  • the dimensions of the coil with the supply of material of the circumferential reinforcement are not limited, which allows to significantly increase the specified supply of the material of the circumferential reinforcement, increase productivity, reduce the cost of production.
  • tape district reinforcement equivalent in cross-sectional area to a round wire, leads to a decrease in the wall thickness of the pipe and to a corresponding decrease in polymer consumption while maintaining the strength of the composite pipe.
  • metal tape for reinforcing allows to increase the welding area of longitudinal and circumferential reinforcement, which significantly increases the strength of the connection and the stability of the strength characteristics of the frame.
  • the welding area of a single contact is not more than 1 mm 2 , which provides a tensile force of at least 30 kg.
  • the welding contact increases to 4 mm 2
  • the welding area increases to 9 mm with a proportional increase in the strength of the welded joint.
  • the claimed technology expands the range of products obtained, allowing it to be used for the manufacture of many types of polymer composite pipes and other types of tubular polymer composite products in one stage, in a continuous mode.
  • the claimed technology allows you to:
  • a decrease in the stages of the manufacturing process increases the quality of finished products and reduces their cost.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulding By Coating Moulds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention se rapporte aux techniques de production de tubes polymères renforcés. Le procédé et le dispositif de formation d'un renfort enveloppant pour un article creux étiré consiste à enrouler en spirale un renfort enveloppant, avant quoi le renfort enveloppant est disposé sur un dévideur capable d'effectuer avec le renfort enveloppant au moins une spire à la surface du dévideur coaxialement aux spires de l'enroulement en spirale. Le résultat technique consiste en une meilleure qualité des articles finis tout en réduisant la consommation énergétique et les coûts intrinsèques de production, et tout en simplifiant l'équipement du fait qu'il n'est plus nécessaire de se préoccuper des ressources en matériau pour former une carcasse enveloppante autour de l'axe longitudinal de l'article; on réduit également plusieurs fois le nombre d'arrêts du fait de l'épuisement du matériau consommable pour le renfort enveloppant (transversal). On améliore les conditions d'utilisation de matériaux en bande pour le renfort enveloppant de tube composites étant donné que la cinématique d'alimentation du matériau consommable pour le renfort enveloppant; on a recours uniquement à la courbure transversale sans courbure longitudinale du renfort enveloppant; on réduit la consommation en polymère grâce à l'utilisation d'un renfort enveloppant en bande tout en préservant la résistance du tube composite, et en élargissant l'éventail des produits fini par une seule technologie.
PCT/RU2016/000841 2016-06-28 2016-12-01 Dispositif et procédé de production de tubes polymères renforcés WO2018004378A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2016125798 2016-06-28
RU2016125798A RU2626039C1 (ru) 2016-06-28 2016-06-28 Способ формирования окружного армирования цельнотянутого полого изделия, способ получения армированной полимерной трубы (варианты) и устройства для осуществления указанных способов

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Publication number Priority date Publication date Assignee Title
RU2720086C9 (ru) * 2019-08-06 2020-06-26 Акционерное общество "ПОЛИМАК" Многослойная полимерная армированная труба, способ ее непрерывного изготовления и устройство для осуществления способа
RU2709276C1 (ru) * 2019-08-13 2019-12-17 Акционерное общество "ПОЛИМАК" Способ непрерывного изготовления полимерной армированной трубы и устройство для его осуществления
RU2718473C1 (ru) * 2019-11-09 2020-04-08 Акционерное общество "ПОЛИМАК" Способ непрерывного изготовления многослойной полимерной армированной трубы и линия для осуществления способа

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261991A (en) * 1986-04-30 1993-11-16 Dana Corporation Composite tubular elements and methods of fabrication
US6620475B1 (en) * 2000-08-10 2003-09-16 Hydril Company Structure for wound fiber reinforced plastic tubing and method for making
RU2492047C1 (ru) * 2012-03-14 2013-09-10 Юрий Максимович Петров Способ непрерывного изготовления металлополимерной армированной трубы повышенной прочности и устройство для его осуществления
WO2016099686A1 (fr) * 2014-11-05 2016-06-23 Clph, Llc Dispositifs de cathéter et leurs procédés de fabrication

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261991A (en) * 1986-04-30 1993-11-16 Dana Corporation Composite tubular elements and methods of fabrication
US6620475B1 (en) * 2000-08-10 2003-09-16 Hydril Company Structure for wound fiber reinforced plastic tubing and method for making
RU2492047C1 (ru) * 2012-03-14 2013-09-10 Юрий Максимович Петров Способ непрерывного изготовления металлополимерной армированной трубы повышенной прочности и устройство для его осуществления
WO2016099686A1 (fr) * 2014-11-05 2016-06-23 Clph, Llc Dispositifs de cathéter et leurs procédés de fabrication

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