• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
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    • 专利摘要:
    METHOD AND APPLIANCE FOR MANUFACTURING A CONTINUOUS COMPOSITE TUBE, AND USE OF A COMPOSITE TUBE. A method for making a continuous composite tube, which comprises translating an inner tube lining through a manufacturing station, wherein the manufacturing station comprises a winding station and a consolidation station located at a distance downstream from the winding station; wrapping a composite tape over the inner tube liner at the winding station to form a layer of tape; consolidate the layer of composite tape over the inner tube lining in a consolidation zone of the consolidation station by pressing and heating the tape.
    公开号:BR112013022531B1
    申请号:R112013022531-9
    申请日:2012-03-05
    公开日:2021-01-05
    发明作者:Marcus Antonius Ivonne Kremers
    申请人:Ao&G Holding B.V.；
    IPC主号:
    专利说明:

    [001] The invention relates to a method for making a continuous composite tube, more specifically a thermoplastic composite tube.
    [002] Pipes with a long length are known and are often used in subsea or subsurface applications or as overland flow lines, although the application is not limited to these. A continuous tube is, for example, preferably used in exploration, production, intervention and drilling applications, on land and at sea, where the greatest benefits can be found at sea. Such applications can often require lengths of several hundred meters to several kilometers of tubes.
    [003] Steel tubes are commonly used, which, however, have disadvantages, such as corrosion, fatigue, elastic fracture, weld sensitivity, weight, etc. In addition, transporting a relatively long steel tube through spiral pipes can be difficult. In addition, to manufacture long steel tubes, different sections of steel tube are usually welded together, which can be a lengthy manufacturing process, where the weld line can result in a weak spot in the tube.
    [004] Therefore, an attempt was made to produce composite tubes of relatively long length. Different technologies are known, such as braiding or filament winding, etc. to produce a composite tube, either in sections or in a more or less continuous process.
    [005] It is known that there are several methods for making a composite tube of a long length (continuous tube). For example, a production line of winding machines is used that wrap dry fibers or a prepreg fiber and resin prepreg tape over the inner lining or front layer, to build a laminate of several layers of tape or fiber. The structure of the composite tube may or may not be bonded, in which the structural elements are loose and not structurally bonded to each other, or which is called bonded, in which the elements are structurally connected and form a solid structure. In addition, the structure of the composite tube may be based on a thermoset or thermoplastic polymer.
    [006] A significant pre-tension in the tape and / or fibers in the tape can be used to provide the consolidation pressure during curing for thermoset composite or consolidation for thermoplastic composite. After creating the laminate, the laminate is cured or consolidated by applying heating. For unalloyed pipe, heat curing or consolidation can be omitted and loose layers can be used as they are or covered with an extruded polymer layer.
    [007] Various methods for making a composite pipe with a long length are known.
    [008] United States patent US3494812, for example, discloses a conventional method for making a tube where a wall consisting of two spiral webs is provided. An inner lining is extruded against the wall in a heated liquid state. The inner lining is adhesive-bonded to the inner surface of the wall during contact and cooling, thus forming a seamless glove-shaped lining. In addition, an outer metallic layer is glued to the outer surface of the wall.
    [009] The patent application published as WO2006107196 discloses an example of a tape laying method, where a tube core is provided by a carrier. A strip of fiber material is then pressed onto the core of the tube using a heated pressure roller.
    [0010] Patent application published as WO9803030 discloses a method for producing a hollow tube of fiber-reinforced thermoplastic resin. The method comprises providing a base layer formed by pultrusion, spiraling a plurality of sublayers in the base layer using a plurality of wrapping stations and consolidating the plurality of sublayers using heated rollers and compaction heads.
    [0011] United States patent US3769127 discloses a device for producing reinforced tube with continuously wound filament, the device of which comprises a tubular mandrel around which a plurality of resin-impregnated threads are wound by a plurality of winding stations. A curing station, curing the plurality of coiled fibers by heating them, resulting in a cured tube.
    [0012] US patent application US2003209312 discloses a process for the manufacture of a fiber-reinforced thermoplastic tube member. The process comprises providing a tube member, wrapping a reinforcement fiber around the tube member at an angle to form a first layer, wrapping a reinforcement fiber around the first layer at an angle different from the angle of the first layer to form a second layer, and wrapping a protective wrap around the second layer, consolidating the tube member and the layers wrapped around it by heating.
    [0013] US patent application US2009250134 discloses a composite tube manufactured by a process providing a coating, wrapping a heat resistant tape around the coating, wrapping fiber reinforced thermoplastic strips around the heat resistant tape, and consolidating the fiber-reinforced strips using heat. The heat resistant tape forms a non-stick barrier mechanically separating the coating from the fiber-reinforced layer.
    [0014] US patent application US2010062249 discloses a manufacturing process for a pre-impregnated sheet. The process consists of providing a removable sheet on a mandrel, providing a layer of resin on the removable sheet and wrapping the wire around the layer of resin to form a pre-impregnated sheet.
    [0015] Disadvantages of known composite tubes are, for example, limited external pressure resistance for unalloyed tube, micro-cracks for thermoset tube, limited impact resistance for thermoset tube, limited chemical resistance, limited resistance to rapid gas decompression, limited winding for thermoset tubes, limited internal pressure resistance, etc.
    [0016] Furthermore, these conventional processes may require that the product be manufactured in a single production step. Also, conventional manufacturing processes impose a limit on the time period to manufacture the tube, in the case of a thermoset laminate and / or a limit on the production speed. In addition, conventional processes usually require complex production machinery.
    [0017] In addition, relatively high tensile strength may be required which may result in tape and / or fiber breakage while pre-tensioning the tape and / or fibers is applied and may result in relatively high residual stresses in the tube . The use of pre-tension during the manufacturing process implies using a relatively high winding angle for the fibers and / or the tape. Pre-tensioning during the process can induce a torsion load on the inner lining or substrate that can deform the tube and can have a negative effect on the quality and / or the mechanical strength of the tube.
    [0018] Furthermore, it is known that, for the manufacture of thermoset or thermoplastic consolidated tubes or laminates, tape laying or fiber laying processes can be used, in which none or a limited pre-tension is used. In the area where the tape is applied to the product, called the pinch point area, a pressure body, such as a roller or shoe, is used to apply pressure to the laminate in order to consolidate the tape on the substrate, in the area of tightening point.
    [0019] An example for the manufacture of continuous thermoplastic composite tube is described in the patent application published as WO2006107196. The patent application published as WO2006107196 describes an apparatus for making a fiber-reinforced tube. The tape is wrapped around the inner lining of the tube, while the tape is pressed onto the inner lining of the tube at the clamping point by a pressure roller providing a line contact. Then, the tape is simultaneously wound and pressed onto the inner lining of the tube. Optionally, heating the tape at the pinch point can be applied. A next layer of ribbon can be wound and pressed onto a layer of previously wound ribbon. However, drawbacks of this method are, for example, limited processing speed and / or complex machinery.
    [0020] Due to these drawbacks, conventional composite tubes are not widely used in applications, especially at sea, underwater, downhole, drilling and high pressure.
    [0021] An object of the invention is to provide a method for producing a composite tube of relatively long length which avoids at least one of the above mentioned drawbacks, while maintaining the advantages.
    [0022] To this end, the invention provides a method for making a composite tube comprising: providing an inner tube lining; translating an inner tube liner through a fabrication station, wherein the fabrication station comprises a separate winding station and a separate consolidation station located at a distance downstream from the winding station; and, wrapping a composite tape over the inner tube lining at the winding station to form a tape layer, characterized by: consolidating the composite tape layer on the inner tube lining in a consolidation zone of the consolidation station by applying pressure to the layer tape, where pressure is applied by an external pressure body by applying external pressure to the tape layer and applying heat to the tape layer where at least pressure is applied over a consolidation area encompassing an axial length and at least part of the circumference of the inner tube lining; and, transferring the inner tube lining once again through the fabrication station and the consolidation station, in which the ribbon layer is wrapped in a previously wrapped and consolidated ribbon layer.
    [0023] The present invention relates to a process mainly for making connected pipe. A bonded or consolidated laminate has better mechanical performance, has the capacity to withstand compression loads, such as external pressure, handle combined and off-axis load cases and is better resistant to rapid gas decompression.
    [0024] The present invention is mainly used to manufacture thermoplastic composite tube, although the use of thermoset plastic composite material is also possible. Another possibility is to use dry fiber filament tow to manufacture a dry fiber preform, which is infused with a polymer resin in a subsequent manufacturing step. The advantage of using thermoplastic composite for a long continuous tube with a consolidated bonded laminate is the greater ductility and tolerable deformation of the material, providing impact resistance, winding capacity, residual mechanical resistance and toughness.
    [0025] With the method according to the invention, a consolidated continuous thermoplastic composite tube can be manufactured. Such a connected tube has better resistance to external pressure, better resistance to internal pressure, capacity to support loads that are off-axis towards the fiber direction, better winding capacity than thermoset composite tube. If the inner liner, the composite and possibly the liner material are made from the same thermoplastic polymer, all layers can be welded together to provide a tube system that has better resistance to rapid gas decompression than tubes Conventional composites, which are either bonded, or combine different materials in the tube, resulting in less interface resistance between different materials.
    [0026] For example, a tube can be manufactured using a single material concept, meaning that the material of the tape matrix can be the same or similar to the material of the inner lining of the tube, and the same as that of the outer lining, resulting in better merger and consolidation, and thus, better performance.
    [0027] By first wrapping the tape over the inner tube lining and then downstream of the winding station, consolidating the tape over the inner tube lining, the tube can be manufactured in a predictable and controlled manner. Since the winding and consolidation of the tape are spatially separated along the longitudinal axis of the inner tube lining, both processes can be carried out independently of each other and therefore can be better controlled. In fact, the ribbon consolidation is decoupled from the ribbon winding.
    [0028] In addition, using an inner tube lining, a mandrel to manufacture the composite tube can be omitted. The tape is wound directly over the inner tube liner and is then consolidated into the inner tube liner to form an integrated layer with the inner tube liner. Additional tape layers can be rolled up and consolidated into the previous tape layer on the tube. Since no mandrel is required, there is no limit to using multiple winding and consolidation stations. In conventional pultrusion processes, or in the conventional Drostholm continuous filament winding process, a mandrel is used that is supported on one side, inside the manufacturing station. In such processes, only one manufacturing station can be used. Also, the process according to the invention can be repeated by repeating the production process, for example, by translating the tube again through the manufacturing station. Therefore, the process has no limit on the thickness of the composite laminate and the process can be scalable, depending on the required thickness.
    [0029] A continuous composite tube can be obtained, so that joints to connect discrete sections of tube can be omitted and / or minimized, and installation and / or operation can be implemented more quickly.
    [0030] The inner tube lining can be understood to be an inner lining of plastic tube and / or a composite tube comprising at least one layer of already consolidated tape. A composite tape is understood to include a fiber-reinforced plastic tape.
    [0031] By consolidating the tape on the inner tube lining, by pressing the tape layer along a consolidation area on the inner tube lining, a significant length of the tape layer in the axial direction of the inner tube lining can be consolidated in one go. In addition, the consolidation area extends over at least a part of the circumference of the inner tube lining in such a way that a significant area, both axial and circumferential, can be consolidated at once. Thus, the processing speed of the inner tube lining can be increased over the prior art methods which consolidate, for example, at the clamping point.
    [0032] The consolidation area comprises a substantial circumferential section of the tube, which can be referred to as axial-circumferential consolidation. In a preferred embodiment, the consolidation zone extends over approximately the complete circumference of the tube, and thus along a predetermined axial length of the tube, the tape layer can be consolidated along the entire circumference of the tube , which can further increase the processing speed. This also ensures that all parts of the laminate are consolidated, and that areas of unconsolidated material cannot occur. For example, instead of two or three subsequent consolidation areas each extending over half or one third of the circumference of the inner tube lining respectively, a single consolidation area extending over the complete circumference of the lining can be provided. inner tube, which results in improved quality.
    [0033] In particular, when using a non-reinforced thermoplastic tube inner liner, applying pressure over an area avoids using high local pressure and could result in damage or collapse of the inner liner. This risk of collapse can be increased with the heat that can be applied to the consolidation zone, which will decrease the strength and stiffness of the unreinforced internal lining. Applying pressure over a larger area is contrary to prior art methods, such as laying the fiber, where a roll or shoe is used at the point of tightening, where the tape comes into contact with the inner tube lining. In such processes only a very local contact, line type, is used. This results in a small area over which pressure can be applied. In order to provide a high enough consolidating force, high pressures are used in the prior art methods.
    [0034] By applying pressure to a consolidation area with a significant axial length according to the invention, a complete consolidation can be provided and / or an increased processing speed can be obtained, unlike the prior art, where consolidation it is made along a line or short consolidation area, usually usually at or near the line of the pinch point, for example, with a roller or shoe pressing on the tape and / or laminate.
    [0035] The manufacturing performance can increase since the consolidation of the tape on the inner tube lining can be done over a consolidation area along an axial length of the tube, which can be much longer than in the conventional method . The axial length, for example, can be from approximately 5 cm to approximately several meters. It may be evident that the axial length depends on several parameters, such as the diameter of the tube and / or the tape material and / or the thickness of the tape and / or the processing time of the tape material. The diameter of a tube can be, for example, typically 2.54 cm or 63.5 cm or any diameter in between. According to the invention, external pressure is applied to the tape layer in the consolidation area, and therefore the tape can be arranged on the inner tube lining, with very little or almost no pre-tension on the tape and / or ribbon fibers.
    [0036] External pressure is applied by a pressure body, which is external to the tape and / or to the inner tube lining. When supplying pressure through a pressure body, pressure does not need to be supplied by the tape, so the tape may have little or no pre-tension. Also, by winding the tape with limited pre-tension, several winding angles may be possible, and the tape can even be arranged on the inner tube liner at an angle of approximately 0 ° to the axial axis of the inner tube liner. . Thus, improved mechanical performance of the composite tube can be obtained. In some prior art methods, pressure is usually provided by pre-tensioning the tape while winding the tape over the tube. Thereafter, heat is applied for consolidation. Since pre-traction of the fibers in the tape can result in residual stresses in the tube after consolidation, the mechanical performances may be lower than that of a tube manufactured according to the invention.
    [0037] In fact, according to the invention, the orientation of the consolidation area is decoupled from the orientation of the tape, whereas according to the prior art, the consolidation area at or near the line of the clamping point has the same orientation as the ribbon, approximately perpendicular to the ribbon direction. In this way, according to the invention, the extension of the consolidation area can be increased, which can reduce the pressure required for a given production speed and makes it possible to consolidate without a mandrel, on an internal tube covering flexible.
    [0038] An additional advantage is that the pressure body is only dependent on the diameter of the tube, and not on the winding angle, as is the case in the conventional method, in which a pressure body is used perpendicular to the direction of the tape. The consolidation station can be relatively easily scaled for different pipe diameters, a large pipe diameter requires only a larger size, for example, diameter of at least the pressure body.
    [0039] Preferably, the pressurization of the tape over the inner tube lining is controlled by force, so that preferably, the pressure body is controlled by force, as opposed to a pressure body controlled by geometry. A force-controlled pressure body can accommodate irregularities in the inner tube lining and / or an irregular tube inner lining, for example, an oval tube inner lining due to winding. Also, by a force-controlled pressure body, the pressure applied to the tape layer can be more or less approximately evenly distributed over the consolidation area, on which the pressure is applied.
    [0040] A geometry-controlled pressure body would be, for example, a solid matrix with a fixed opening geometry, which, if an irregular tube inner liner is used, results in different pressures along the circumference of the tube, resulting in in a lower quality tube. A force controlled pressure body can be a flexible pressure body, which can comprise a vacuum between the tube and the pressure body to generate the contact pressure, of course many variants of a force controlled pressure body are possible.
    [0041] Using a pressure body, in particular a force-controlled flexible pressure body, to press the tape over the inner tube liner, the tape can be pressed over the inner tube liner over a relatively large surface area in the axial and circumferential direction of the inner tube lining. Such a flexible pressure body is controlled by force and can be easily scaled to different pipe diameters. In fact, a force-controlled pressure body is a flexible pressure body. For example, the pressure body can comprise multiple fingers that can be predicted subsequently and / or over a part of the circumference that each finger can be spring-loaded to provide control by force, such a pressure body can be considered as a body pressure controlled by flexible force. The finger itself can have a fixed geometry to contact the tape layer, or it can have a flexible geometry, for example, because of a rubber tip, to contact the tape layer. Many variants are possible. Several embodiments are possible.
    [0042] Preferably, the flexible pressure body is flexible in the axial direction, but also in the circumferential direction, allowing for optimal accommodation and / or correction of irregularities.
    [0043] Advantageously, the pressure is provided by a pressure body, which is in sliding contact with the tape layer during the translation of the inner tube lining. With this pressure body, the pressure body can press the inner tube lining in approximately continuous pressure while translating the inner tube lining through the manufacturing station. Also, due to the sliding contact, the irregularities in the tape layer can be approximately leveled to a certain extent.
    [0044] During the consolidation of the tape layer it is also heated to connect and / or fuse the layer in the inner tube lining or a layer of previously wound tape. The tape can be heated and / or the tape layer can be heated. The heat can be applied before the pressure is applied, or the heat can be applied simultaneously and in the same place as the applied pressure. In addition to heating, preheating can be applied to at least partially melt the tape layer and / or the inner tube liner.
    [0045] Heating can be carried out indirectly, for example, via infrared, gas, hot air, induction, laser, microwave, or directly, via contact heating. Preferably, the tape is heated by contact heating to minimize losses and to maximize the heat exchange between the heating device and the tape.
    [0046] Advantageously, the body is heated under pressure and provides heating by contact for the transfer of heat to the tube during contact with the tube, while pressurizing. During pressing of the pressure body, heat can be transferred to the tape to fuse the tape and / or tape components to consolidate the tape over the inner tube lining.
    [0047] Optionally, in the consolidation zone also cooling can be applied to the tape and / or laminate to freeze the laminate. The consolidation zone can then, for example, comprise first heating and / or preheating, then at least pressing and then cooling. First, heating and / or preheating can be applied to melt the tape at least partially in a heating and / or preheating zone, then at least pressure can be applied to melt the tape with the previous layer in a pressure zone. After that, the tape can be cooled to freeze the molten tape in a cooling zone. In addition to providing cooling, the production speed can be increased. Alternatively, after a consolidation zone, a cooling zone providing only cooling, can be arranged. In a consolidation zone, at least one pressure zone is provided, while advantageously simultaneous heating is provided. Similar to heating, cooling can be provided by contact cooling.
    [0048] Also, optionally, multiple consolidation zones can be applied. Each consolidation zone comprises at least pressing and heating, optionally preheating and more optionally cooling. Consolidation zones can be mutually different at least in the pressure and / or temperature provided or by heating or cooling. For example, temperature and / or pressure can be increased from one consolidation zone to another consolidation zone.
    [0049] By providing internal pressure in the inner tube lining during consolidation, the external pressure applied by the pressure body can be applied more effectively. In addition, the internal pressure can decrease the ovalization of the inner tube lining which can occur due to the winding of the tube.
    [0050] Adhesion of the tape on the inner tube lining and / or a previous layer of tape is usually obtained without the application of an adhesive interface layer, but this can also be done. An adhesive interface layer needs to be consolidated or cured, also by applying heat and pressure, which can be done by the method according to the invention to increase the processing speed and / or the quality.
    [0051] In the area of the clamping point, the use of a local roller or shoe can be used to assist the first consolidation of the tape in the inner lining of the tube, in combination with the aforementioned consolidation zone for pressing and heating downstream of the winding station. The clamping point area is located on the winding station.
    [0052] The body or bodies in the pressure consolidation zone can be either rotating around the inner lining of the tube, in the approximately circumferential direction, or at an angle, translating in the axial direction of the tube, for example, in a type machine caterpillar, or stationary (neither translation nor rotation). In addition, the pressure body or bodies themselves may be rollers or non-rolling elements. The non-rolling elements have sliding contact with the material of the tape and / or the inner tube lining.
    [0053] As an embodiment, the pressure body can be stationary in relation to the tape and / or the inner tube lining, for example, with non-rolling elements, so that the pressure body can be approximately continuously in contact with the tape during translation of the inner tube lining through the manufacturing station. A more or less continuous production process may be possible and relatively long lengths of composite tube can be manufactured as a continuous composite tube. With such a body or such pressure bodies, the pressure body can approximately continuously press the tape over the inner tube lining, while transferring the inner tube lining, through the manufacturing station. As a stationary pressure body, we mean a pressure body that is fixedly attached to the fixed world, unlike the prior art, in which a pressure shoe rotates around the tube.
    [0054] By providing a stationary pressure body, instead of, for example, a rotating pressure body, the pressure body can be simpler and more cost-effective. For example, a series of shoes that are positioned circumferentially around the inner tube liner can be used to press the tape over the inner tube liner. The pressure bodies can be arranged in such a way that the complete circumference of the inner tube lining can be pressed without allowing gaps between the pressure areas. To avoid gaps between the different pressure areas of different pressure bodies, the pressure areas can be partially overlapping. In particular, this may be possible when the pressure bodies are arranged in an axial direction, one after the other. The tape can be wound in a spiral, at an angle to the longitudinal direction of the inner tube liner, over the inner tube liner, but the tape can also be arranged axially at an angle of approximately 0 ° over the inner tube liner. , since the tape is wound over the inner tube lining with minimal or approximately zero pre-tension of the tape. Advantageously, another layer of tape is wound over the inner tube lining. Thus, a plurality of layers of tape can be wound over the inner tube liner to produce a composite tube. After having wrapped each layer of ribbon, the ribbon layer can be consolidated. Also, a few layers of tape can be wrapped around themselves and these few layers of tape can then be consolidated at once. If a layer of tape is wound and consolidated on a layer of previous consolidated tape, the tube already has some mechanical rigidity and performance, and can already be loaded, during production, for example, the tube can be wound between each layer of tape . It is not necessary to manufacture the complete tube first before the tube can be wound. The complete tube can therefore be manufactured in several stages. The process can be scalable, with a single fabrication station and multiple layers of tape can be laid out and a complete finished product can be made.
    [0055] In one embodiment, the inner tube lining and / or the tape is of thermoplastic material and / or comprises thermoplastic material, to improve adhesion of the tape to the inner tube lining and / or for improved tube flexibility characteristics . Similarly, the tape and / or the inner tube lining may be of thermoset material, or in a dry fiber form, possibly stabilized with binder powder.
    [0056] The invention also relates to an apparatus for manufacturing a continuous composite tube. According to the invention, the apparatus comprises a pressure body, which supplies pressure to the tape layer along an axial length of the inner tube lining to consolidate the tape layer.
    [0057] The invention also refers to the use of a composite tube.
    [0058] The invention will be further elucidated based on the exemplary embodiments, which are represented in the drawings. Exemplary embodiments are given by way of non-limiting illustration of the invention.
    [0059] In the drawings:
    [0060] Fig. 1 shows a schematic representation of a first embodiment of an apparatus according to the invention.
    [0061] Fig. 2 shows a schematic representation of a second embodiment of an apparatus according to the invention.
    [0062] Fig. 3 shows schematic representations of pressure bodies for use in an apparatus according to the invention.
    [0063] Fig. 4 shows schematic representations of flexible pressure bodies for use in an apparatus according to the invention.
    [0064] Fig. 5 shows schematic representations of heating devices for use in a device according to the invention.
    [0065] Fig. 6 shows schematic representations of winding for use in an apparatus according to the invention.
    [0066] Fig. 7 shows a schematic representation of an embodiment of a winding zone and a consolidation zone according to the invention.
    [0067] Note that the figures are only schematic representations of embodiments of the invention that are given by way of non-limiting example. In the figures, identical or corresponding parts are designated with the same reference numbers.
    [0068] Fig. 1 shows a schematic representation of an apparatus 1 according to the invention. The apparatus 1 for making a continuous composite tube here comprises a manufacturing station 2 and two spools 3, 4. An inner lining of plastic tube 5, preferably thermoplastic, is wound on the spool 3. During the manufacture of the composite tube 6, the inner lining of tube 5 is transferred through manufacturing station 2 and wound on spool 4. Thus, a spiral composite tube 6 can be obtained.
    [0069] The manufacturing station 2 comprises a winding station 7 and a consolidation station 8. In the winding station, a composite tape 9, preferably thermoplastic, is disposed on the inner tube lining 5 to form a layer of tape 10a on the inner tube lining 5, in the winding zone 14. The tape 9 can be a fiber-reinforced tape. The tape 9 can be arranged in paths 10 ways approximately close to each other. A small gap 9a between the tape paths 10 is acceptable or a small overlap between the tape paths 10 is acceptable. In figure 1, the interval 9a is exaggerated. The gap or overlap is small in relation to the width of the tape path 10. Ideally, the tape paths 10 abut against each other. By providing a force-controlled pressure body, such a gap and / or overlap can be more easily accommodated,
    [0070] Examples of winding tape 9 over the inner lining of tube 5 are given in Fig. 5. Fig. 6a shows winding with a concentric fiber spool. Fig. 6b shows winding with rotating winding heads. Fig. 6c shows winding with fixed winding heads where the tube is in translation and rotation. Fig. 6d shows braiding of the tape over the inner tube lining and Fig. 6e shows winding of the tape, by translating the winding head and rotating the inner tube lining.
    [0071] Downstream of the winding station 7, the consolidation station 8 is positioned. In the consolidation station 8, the tape 9 is consolidated on the inner lining of tube 5, by pressing, heating and optionally cooling, as shown in Fig. 2, of the tape 9 in the consolidation zone 13. In the embodiment of Fig. 1, the consolidation zone 13 comprises the consolidation area 16, having a length L, for pressing the tape layer 10a. The pressure body 11 and the consolidation area 16 are schematically drawn here. It is evident that the pressure body 11 applies pressure along an axial length L of the inner tube lining 5 and at least a part of the circumference of the inner tube lining 5, preferably along the entire circumference.
    [0072] The consolidation of the tape layer is done by applying pressure and heat to the tape layer 10a. The pressing and heating of the tape layer 10a is done here at the same location and at the same time, in the consolidation area 16, so that an optimal fusion of the tape layer 10a in the inner tube lining 5 can be obtained. By providing consolidation of the tape layer 10a on the inner lining of the tube 5 at a distance downstream from the winding of the tape 9, a controlled process can be achieved.
    [0073] Fig. 2 shows another embodiment of the invention, in which additionally a cooling zone 18 and a preheating zone 17 are provided. In the cooling zone 18, a cooling device 19 is arranged, and in the preheating zone 17, a preheating device 20 is arranged. First, there can be preheating to melt at least partially the tape 9 in the preheating zone 17, then pressure can be applied in combination with heat to melt the tape 9 in the previous layer in the pressure zone 16. Thereafter, there may be cooling to freeze the molten tape in the cooling zone 18. Also, multiple consolidation zones can be provided, for example, in the same consolidation station or in multiple consolidation stations. Many variants are possible.
    [0074] Instead of the shown embodiment, the heating device 12 can be omitted and the preheating device can be replaced by a heating device, so that pressure and heat are applied to consolidate the tape layer, although not in the same location.
    [0075] To consolidate the tape 9 on the inner lining of tube 5, a pressure body 11 and a heating device 12 are provided. In the examples shown in Fig. 1 and Fig. 2, the pressure body 11 is stationary with respect to the tube and / or the inner tube lining and / or the tape. The inner lining of tube 5 is in translation while the pressure body 11 is fixedly mounted and stationary with respect to the translation tube. Also, in the illustrated embodiments, the heating device 12 is stationary with respect to the tube and / or the inner tube lining and / or the tape. The pressure body 11 and the heating device 12 are arranged in such a way that pressure and heat are applied to the consolidation area 16 of the inner tube lining 5, simultaneously, in the same location. Advantageously, the pressure body 11 is arranged to provide pressure on a part of the circumference of the inner tube lining, as well. Thus, along the consolidation area 16 of the inner tube lining 5, the tape layer 10a is consolidated into the inner tube lining 5.
    [0076] Fig. 3 gives multiple examples of pressure bodies 11 that can be used. Fig. 4 gives multiple examples of flexible pressure bodies that can be used
    [0077] Fig. 7 shows that the consolidation takes place in a consolidation zone 13 at a distance downstream of a winding zone 14. In the winding zone 14, the tape is wound over the inner tube lining 5, the point where the tape 9 contacts the inner lining of tube 5 is usually referred to as the clamping point line 15. Dissociated from the winding of the tape 9, is the consolidation of the tape layer 10a, which takes place in the consolidation zone 13 of the station consolidation 8. The consolidation of the tape layer 10a on the inner tube lining 5 by pressing and heating is carried out along an axial length L of the inner tube lining 5. Depending on the configuration of the pressure body 11, the consolidation extends over a circumferential section or over the complete circumference of the inner tube liner, such that the tape layer 10a is consolidated into the inner tube liner 5, over an area of the inner liner of tube 5. Fig. 3a shows a pressure body, which can be compressed locally, for example, a rubber shoe, which can, for example, be stationary in relation to the tape and / or the inner tube lining, and which may be in sliding contact with the tape and / or the inner tube lining. Other pressure bodies can also be positioned stationary. Fig. 3b shows the compression between a heated tree and a matrix. Fig. 3c shows the heating and compression between a matrix and the inner tube lining. Fig. 3d shows the pressure, supplying compressed air along an axial length of the inner tube lining 5. Fig. 3e shows the translational pressure of the inner tube lining 5 through a bath with compressed fluid. Fig. 3f shows the pressing, providing traction on a coiled belt around the inner tube lining 5.
    [0078] Fig. 4a shows the pressure supply with a three-point belt that is wrapped around the inner tube lining 5. Fig. 4b shows the pressure supply by rollers placed radially around the inner tube lining 5. Fig. 4c shows the pressing with a spring. Fig. 4D shows the pressing with a ring-shaped pressure device, while Fig. 4e shows a flexible shoe. Pressure bodies shown in Fig. 3 and Fig. 4 can, in some embodiments, be positioned stationary with respect to the tape and / or the inner tube lining.
    [0079] The pressure is preferably applied along an axial length of the inner tube lining and / or over a circumferential part of the inner tube lining, such that an area of the inner tube lining 5 is subjected to pressure to consolidate the tape layer 10a in that area. As can be seen, for example, in the devices of Fig. 3b, 3c, 3e and 3f and Fig. 4. Advantageously, during pressing, with the pressure device, the inner lining of tube 5 is internally pressurized, in order to minimize the collapse of the inner tube lining 5.
    [0080] For consolidation, heating is also applied. Heating can be provided by a heating device 12 which can heat the inner tube lining directly, for example, that the heating device 12 heats the tape and / or the inner tube lining, or indirectly, for example, the device heating element 12 heats the pressure body 11, which in turn heats the tape and / or the inner tube lining. The heating devices can be positioned stationary in relation to the tape and / or the inner tube lining. Also, a heating device can be combined with a pressure device, for example, a heated shoe that can apply pressure to the tape and / or the inner tube lining.
    [0081] Fig. 5 shows some embodiments of a heating device 12 that can be applied. For example, Fig. 5a shows heating by a gas or hot air torch. Fig. 5b shows heating by means of ultrasound waves. Fig. 5c shows heating by infrared radiation. Fig. 5d shows heating by conduction (heating by contact). Fig. 5e shows induction heating. Fig. 5F shows microwave heating. Fig. 5g shows laser heating. In one embodiment, heating can be accomplished by generating an electric current in a resistance element. For active cooling, for example, the methods shown in Fig. 4a and Fig. 4d can be used. With the method of Fig. 5a, cooled air is blown against the product, and with the method of Fig. 5d a cooled contact element is brought into contact with the tube.
    [0082] Heating is preferably carried out along an axial length of the inner tube lining and / or over a circumferential part of the inner tube lining, similarly to the application of pressure to provide a consolidation. Preferably, heating is applied simultaneously with pressing and in the same place. By heating the inner tube lining 5 and / or the tape 9, the melting of the tape layer 10a in the inner tube lining 5 can be improved.
    [0083] Preferably, the inner tube lining 5 and / or the tape 9 are heated by contact heating, to increase the heat exchange with the tape and / or the inner tube lining and to improve the melting between the tape 9 and the inner lining of tube 5. Advantageously, the pressure body 11 itself is heated. By pressing the heated pressure body 11 onto the tape 9 and the inner tube liner 5, the tape 9 and the inner tube liner 5 are heated. Likewise, cooling can be carried out.
    [0084] The manufacture of the composite tube can be a continuous process, which means that during the translation of the inner tube lining 5, through the fabrication station 2, the tape layer 10a is consolidated on the inner tube lining 5. During consolidation, the pressure body 11 is in contact with the tape 9 to press the tape 9 on the inner lining of tube 5. Preferably, the pressure body 11 is controlled by force, which can result in a pressure distribution relatively uniform over the area, in particular, when the pressure body 11 is in sliding contact with the tape layer 10a.
    [0085] An additional layer of tape can be wrapped over the inner tube lining 5 on top of the tape layer already present on the inner tube lining 5. For example, another manufacturing station can be provided downstream of the manufacturing station 2. Also, when the spool 3 is free of the inner tube lining 5 and the tube 6 is wound around the spool 4, the spool 3, 4 can be changed and the process can start again. An additional layer of tape is then wound on top of the layer of tape present when the inner tube liner 5 is processed again through the manufacturing station 2. Many layers of tape can be wrapped over the inner tube liner 5, for example, up to 40 or more layers of tape can be wrapped. Preferably, each layer of tape 10a is consolidated after it has been wound and another layer of tape 10a is wound on a layer of previously consolidated tape. Alternatively and / or in addition, a few layers of tape can be rolled up on top of each other and then can be consolidated at once. However, the number of layers of tape thus consolidated is limited, preferably to six or less. This is contrary to the prior art, where usually all layers of tape are pre-wound and then consolidated at once.
    [0086] Many variants will be evident to the person skilled in the art. All variants are understood to be within the scope of the invention as defined in the following claims.
    权利要求:
    Claims (13)
    [0001]
    1. A method for making a continuous composite tube (1), comprising: providing an inner tube lining (5); transfer an inner tube lining (5) through a fabrication station (2), where the fabrication station (2) comprises a separate winding station (7) and a separate consolidation station (8) located at a distance downstream of the winding station (7); and wrapping a composite tape (9) over the inner tube liner (5) in the winding station (7) to form a tape layer (10a), characterized by: consolidating the composite tape layer (10a) in the inner liner of tube (5) in a consolidation zone (13) of the consolidation station (8) applying pressure to the tape layer (10a), where pressure is applied by an external pressure body (11) applying external pressure to the tape layer (10a) and applying heat to the tape layer (10a) where at least pressure is applied over a consolidation area (16) encompassing an axial length (L) and at least part of the circumference of the inner tube lining (5) ; and transfer the inner tube lining (5) again through the fabrication station (2) and the consolidation station (8), in which the tape layer (10a) is previously wrapped in a tape layer (10a) rolled and consolidated.
    [0002]
    2. Method according to claim 1, characterized in that the pressure is applied by a pressure body (11).
    [0003]
    Method according to either of claims 1 or 2, characterized in that the pressing of the tape layer (10a) is controlled by force.
    [0004]
    Method according to either of claims 2 or 3, characterized in that during consolidation the pressure body (11) is in sliding contact with the tape layer (10a) to press the tape layer (10a) on the inner tube lining (5).
    [0005]
    Method according to any one of claims 1 to 4, characterized in that it further comprises providing internal pressure to the inner tube lining (5) during consolidation.
    [0006]
    Method according to any one of claims 1 to 5, characterized in that it further comprises heating the tape layer (10a) simultaneously at the same place as the pressing of the tape layer (10a).
    [0007]
    Method according to any one of claims 1 to 6, characterized in that the heating is provided by contact heating.
    [0008]
    8. Apparatus for manufacturing a continuous composite tube (1), to carry out the method defined in claim 1, whose apparatus comprises a manufacturing station (2) arranged to allow translation of an inner tube lining (5) through it, in that the manufacturing station (2) comprises a separate winding station (7) for winding a composite tape (9) on the inner tube lining (5) to form a layer of tape (10a), characterized in that it comprises a separate consolidation station (8) at a distance downstream from the winding station (7) to consolidate the tape layer (10a) on the inner tube lining (5), applying pressure and heat to the tape layer (10a ), in which pressure is applied over a consolidation area (16) comprising an axial length (L) and at least part of the circumference of the inner tube lining (5).
    [0009]
    Apparatus according to claim 8, characterized in that a pressure body (11) is provided to apply pressure to the tape layer (10a).
    [0010]
    10. Apparatus according to claim 9, characterized by the fact that the pressure body (11) is controlled by force.
    [0011]
    Apparatus according to any one of claims 8 to 10, characterized in that the pressure body (11) is in sliding contact with the tape layer (10a) during consolidation.
    [0012]
    Apparatus according to any one of claims 8 to 11, characterized in that it further comprises a heating device (12) for heating the tape layer (10a) simultaneously and at the same place as the pressing of the tape layer (10a ).
    [0013]
    Apparatus according to claim 12, characterized in that the heating device (12) is arranged to heat the pressure body (11) to provide heating by contact.
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    同族专利:
    公开号 | 公开日
    EP2681040B1|2015-07-08|
    MY164691A|2018-01-30|
    DK2681040T3|2015-08-10|
    ES2544614T3|2015-09-02|
    CA2828925A1|2012-09-07|
    EP2681040A1|2014-01-08|
    RU2013143052A|2015-04-10|
    CA2828920C|2017-10-03|
    CN103501989A|2014-01-08|
    AU2012223810A1|2013-10-17|
    EP2681041B1|2015-06-24|
    IL228263A|2016-12-29|
    RU2592595C2|2016-07-27|
    MX339659B|2016-05-31|
    EP2681041A1|2014-01-08|
    CA2828920A1|2012-09-07|
    US10226892B2|2019-03-12|
    NL2006335C2|2012-09-04|
    AU2012223811B2|2017-05-25|
    CN103501989B|2016-01-13|
    ES2544615T3|2015-09-02|
    MX336522B|2016-01-18|
    BR112013022528A2|2016-11-29|
    DK2681041T3|2015-08-10|
    AU2012223811A1|2013-10-17|
    MX2013010049A|2014-08-01|
    CN103501988B|2016-08-24|
    MY164692A|2018-01-30|
    RU2013143053A|2015-04-10|
    WO2012118379A1|2012-09-07|
    IL228262A|2016-12-29|
    RU2592539C2|2016-07-20|
    CA2828925C|2018-06-19|
    AU2012223810B2|2016-06-23|
    CN103501988A|2014-01-08|
    US10144171B2|2018-12-04|
    US20140020766A1|2014-01-23|
    BR112013022528B1|2020-04-22|
    BR112013022531A2|2016-11-29|
    MX2013010103A|2014-04-14|
    WO2012118378A1|2012-09-07|
    US20140020819A1|2014-01-23|
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    法律状态:
    2018-02-06| B25A| Requested transfer of rights approved|Owner name: AOANDG HOLDING B.V. (NL) |
    2018-04-03| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-10-01| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-06-09| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|
    2020-11-10| B09A| Decision: intention to grant|
    2021-01-05| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 05/03/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    NL2006335A|NL2006335C2|2011-03-03|2011-03-03|Method for manufacturing continuous composite tube, apparatus for manufacturing continuous composite tube.|
    NL2006335|2011-03-03|
    PCT/NL2012/050134|WO2012118379A1|2011-03-03|2012-03-05|Method for manufacturing continuous composite tube, apparatus for manufacturing continuous composite tube|
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