WO2014147224A2 - Dispositif de raccordement permettant d'introduire du matériau matrice dans une chambre de réception pourvue de fibres de renforcement d'un semi-produit de pièce structurale, système d'introduction pourvu d'un tel dispositif de raccordement, et procédé d'introduction de matériau matrice - Google Patents

Dispositif de raccordement permettant d'introduire du matériau matrice dans une chambre de réception pourvue de fibres de renforcement d'un semi-produit de pièce structurale, système d'introduction pourvu d'un tel dispositif de raccordement, et procédé d'introduction de matériau matrice Download PDF

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Publication number
WO2014147224A2
WO2014147224A2 PCT/EP2014/055713 EP2014055713W WO2014147224A2 WO 2014147224 A2 WO2014147224 A2 WO 2014147224A2 EP 2014055713 W EP2014055713 W EP 2014055713W WO 2014147224 A2 WO2014147224 A2 WO 2014147224A2
Authority
WO
WIPO (PCT)
Prior art keywords
connecting device
receiving
matrix material
structural component
semifinished product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2014/055713
Other languages
German (de)
English (en)
Other versions
WO2014147224A3 (fr
Inventor
Valentine Troi
Oliver Schennach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUPERTEX COMPOSITES GmbH
Original Assignee
SUPERTEX COMPOSITES GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SUPERTEX COMPOSITES GmbH filed Critical SUPERTEX COMPOSITES GmbH
Publication of WO2014147224A2 publication Critical patent/WO2014147224A2/fr
Publication of WO2014147224A3 publication Critical patent/WO2014147224A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/0272—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using lost heating elements, i.e. heating means incorporated and remaining in the formed article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B29C70/446—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/542—Placing or positioning the reinforcement in a covering or packaging element before or during moulding, e.g. drawing in a sleeve
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C2035/0211—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould resistance heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/086—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers and with one or more layers of pure plastics material, e.g. foam layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/88—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced

Definitions

  • German Patent Application 10 2013 205 072.0 is incorporated herein by reference.
  • the invention relates to a connecting device for introducing matrix material in a provided with reinforcing fibers receiving space of a structural component semifinished product.
  • the invention further relates to a feed system with such a connection device and to a method for feeding matrix material into a receiving space of a structural component semifinished product provided with reinforcing fibers.
  • a structural component semifinished product has two hollow-cylindrical wall elements which delimit a receiving space. In the receiving space reinforcing fibers are arranged, which must be impregnated with a matrix material for the production of a fiber-reinforced structural component. After the structural component semifinished product has been brought into a desired desired shape, matrix material is introduced into the receiving space, so that the reinforcing fibers are impregnated with the matrix material. By curing the matrix material, the fiber-reinforced structural component is formed.
  • the introduction of the matrix material follows by generating a pressure difference to the environment or the ambient pressure, ie by generating a negative pressure or an overpressure.
  • a pressure difference to the environment or the ambient pressure, ie by generating a negative pressure or an overpressure.
  • pressure differences especially at too high pressure, to various problems.
  • leakage occurs, so that the matrix material no longer or only partially reaches the receiving space.
  • there are undesirable deformations of the wall elements, in particular of the inner wall element which lead to shifts of the reinforcing fibers and / or to a changing wall thickness of the structural component.
  • the introduction of the matrix material can be done only with a comparatively slow with a small pressure difference.
  • the invention has for its object to provide a connection device that allows the introduction of matrix material into the receiving space of the structural component semi-finished product in a simple and fast manner.
  • This object is achieved by a connection device with the features of claim 1.
  • the matrix material can be introduced most quickly into the receiving space by generating a high overpressure, since a higher pressure difference can be generated in comparison to a negative pressure.
  • the matrix material enters the receiving space and impregnates the reinforcing fibers of the structural component semifinished product.
  • the first sealing unit serves to seal the receiving space relative to the environment, so that the matrix material emerging from the first channel can not escape into the environment before it enters the receiving space.
  • a second channel which opens into the interior of the structural component semifinished product delimited by the inner wall element.
  • the internal pressure in the interior is adjustable and to the pressure in the receiving space or the pressure of the matrix material customizable.
  • a pressure medium is introduced into the interior space via the second channel, so that the internal pressure forms a counter-pressure to the overpressure of the matrix material, whereby deformation of the inner wall element is avoided.
  • the second sealing unit is used to seal the receiving space relative to the interior, so that the matrix material can not escape into the interior during insertion or the pressure medium can not escape into the receiving space.
  • the connecting device according to the invention is preferably used for introducing the matrix material into the receiving space with overpressure, however, the connection device according to the invention can equally be used for introducing the matrix material into the receiving space with negative pressure.
  • the first channel is connected to a first pump for generating an overpressure and / or underpressure, by means of which the matrix material can be introduced into the receiving space.
  • the second channel is connected to a second pump, which serves for adjusting the internal pressure and by means of which accordingly an overpressure and / or negative pressure in the interior can be generated.
  • the structural component semifinished product can be arranged in a component mold when introducing the matrix material, so that an undesired deformation of a second outer wall element is avoided.
  • a connecting device allows a simple and effective way of sealing the receiving space relative to the Surroundings.
  • the structural component semifinished product is inserted with its end into the receiving opening.
  • the pressing element By means of the pressing element, the receiving element is pressed in the direction of the outer wall element, so that a circumferential sealing point is created between the outer wall element and the receiving element.
  • the pressing element Preferably, the pressing element generates a surface pressure of the receiving element, so that a flat sealing area is formed.
  • the first sealing unit is thus designed such that the receiving element is pressed by the application of radial forces by means of the pressing element to the outer wall element, so that the receiving space is sealed from the environment.
  • a connection device enables in a simple manner a mounting or dismounting on the outer wall element.
  • the structural component semifinished product is introduced into the receiving openings of the pressing element and of the receiving element.
  • the sealing point is generated.
  • the connection device is easy to disassemble.
  • a connection device enables in a simple manner the setting of the radial contact pressure and thus the setting of the corresponding sealing effect. Due to the tapered inner diameter of the contact pressure element is increasingly pressed against the outer wall element with increasing screwing of the pressing on the receiving element. As a result, the sealing effect is increasingly increased.
  • a connection device enables an improved sealing effect. By the at least one elastic sealing element, a flat sealing area is generated with the outer wall element.
  • a connection device according to claim 6 enables in a simple manner the production of a flat sealing area. The fact that the elastic sealing element is arranged in a gap between the receiving element and the pressing element, this is deformed when attaching or screwing the contact pressure, so that the flat sealing area arises.
  • a connection device enables the formation of a flat sealing area in a simple manner. Due to the fact that the elastic sealing element is arranged on an inner side of the receiving element facing the outer wall element, it is increasingly deformed with increasing contact pressure, so that a flat and adjustable sealing area is created.
  • connection device allows a simple structure. Due to the one-piece design, the first sealing unit itself or the receiving element itself need not be sealed relative to the base body.
  • a connecting device ensures a rapid insertion of the matrix material into the receiving space. Due to the fact that the sealing units have to seal off the receiving space from the surroundings and the interior, pressure is exerted on the wall elements in the direction of the receiving space by the sealing units, which pressure is particularly high when the matrix material is introduced with high overpressure a narrowing of the receiving space in the region of the sealing units can lead.
  • the at least one spacer a minimum distance between the wall elements is ensured, so that the matrix material can be freely introduced into the receiving space. The at least one spacer thus ensures that despite a high contact pressure exerted by the first sealing unit, a minimum distance between the wall elements for easy introduction of the matrix material is ensured.
  • a connection device ensures a simple and rapid introduction of the matrix material.
  • the spacer can be introduced into the receiving space over the entire circumference, so that a narrowing of the receiving space over the entire circumference is avoided.
  • the matrix material can be introduced unhindered into the receiving space.
  • a connecting device allows easy insertion and accelerated curing of the matrix material.
  • a voltage can be applied to the reinforcing fibers of the structural component semifinished product via the electrically conductive connection element, so that a current flow arises along the reinforcing fibers. This generates heat which accelerates the introduction and hardening of the matrix material.
  • the first connection element and / or the spacer is made of metal.
  • a connecting device has a simple construction and ensures the sealing of the receiving space with respect to the surroundings. environment.
  • the connection element extends, for example, through the base body and abuts against the at least one spacer. In this way, a flow of current from the connection element via the at least one spacer to the reinforcing fibers can be generated.
  • the connection element via the at least one spacer to the reinforcing fibers can be generated.
  • connection element is formed, for example, in one piece with the base body or screwed into the base body, whereby a seal against the environment is achieved by the screw connection.
  • connection element extends through the main body, so that a passage opening of the connection element opens into a main body interior.
  • the passage opening and the main body interior form the first channel for feeding the matrix material into the receiving space.
  • a connection device ensures a simple way of sealing the interior space with respect to the receiving space. After being introduced into the inner space, the contact element rests against the inner side of the first, inner wall element, so that the inner space is sealed off from the receiving space.
  • the second channel is formed in the abutment element. By the second channel thus the internal pressure can be adjusted in the interior.
  • the contact element is designed such that in the inserted state, a radial contact pressure is generated on the inner wall element.
  • the abutment element thus exerts radial forces on the inner wall element.
  • the at least one spacer ensures that a minimum distance between the wall elements is ensured.
  • a connection device according to claim 14 enables in a simple manner to set the sealing effect of the second sealing unit. Characterized in that the contact element is conical on the outside, the sealing effect is increased in an increasing introduction of the contact element in the interior. The radial contact pressure on the inner wall element is thus increased with increasing insertion of the contact element.
  • a connecting device allows in a simple manner, the setting of the internal pressure in the interior.
  • the second channel is formed in particular in the connection element and possibly also in the contact element.
  • the connecting element may have a spreading effect, so that the connecting element when inserted into the recess of the contact element spreads the contact element and presses its outer side with a higher contact pressure against the inner wall element.
  • connection device enables in a simple way the adjustment of the contact pressure.
  • the contact element is conically formed on the inside, the contact element is radially spread during insertion.
  • the connecting element preferably has an external thread which can be screwed into an internal thread of the contact element.
  • a connecting device ensures in a simple manner, the setting of the internal pressure.
  • a connection device according to claim 18 is simple in construction and ensures the sealing effect of the sealing units.
  • a connection device according to claim 19 enables in a simple manner an improved sealing effect of the second sealing unit.
  • the outer wall element is shortened with respect to the inner wall element of the structural component semifinished product. In this way, the outer wall element can be additionally introduced into the first receiving element and the inner wall element in the second receiving element.
  • the second pressing element the second receiving element is pressed radially against an outer side of the inner wall element, so that in addition to the sealing point formed by the contact element, a further sealing point is produced, which seals the inner space with respect to the receiving space.
  • the receiving elements are preferably arranged on opposite sides of the basic body.
  • the abutment element is arranged on the second pressing element, in particular integrally formed therewith.
  • a connection device ensures the generation of the second sealing point in a simple manner.
  • a connecting device ensures a good sealing effect of the second sealing point. Because the inner wall element is made of a flexible or elastic material, it is deformed by the clamping edge when the second receiving element is pressed, as a result of which a high sealing effect of the second sealing point is produced. The inner wall element is thus clamped between the conically shaped outer side of the contact element and the clamping edge of the second receiving element.
  • a connection device ensures in a simple manner assembly and disassembly of the second sealing unit.
  • the pressing element is screwed onto the receiving element in a simple manner, whereby it is pressed against the outside of the inner wall element.
  • the contact element is arranged on the contact pressure element, so that at the same time the contact element is inserted into the interior and the associated sealing point is generated when screwing the contact pressure element.
  • a connection device allows for easy
  • the pressing element is preferably screwed onto the receiving element.
  • a connection device according to claim 24 allows the generation of two sealing points in a simple manner. By attaching the contact pressure element, the contact element is introduced into the interior, whereby a first sealing point is generated with respect to the inside of the inner wall element. At the same time the receiving element is pressed against the outside of the inner wall member when attaching the Anpressele-, so that a second sealing point is generated.
  • a connecting device has a simple structure and ensures a sealing of the receiving space with respect to the surroundings.
  • a connection device can be produced in a simple manner.
  • the first receiving element and the abutment element are integral with the main body formed from the plastic material.
  • the first pressing member and / or the second connecting element are formed from the plastic material.
  • the receiving elements are preferably formed integrally with the base body of the plastic material.
  • the pressing elements and the contact element are formed from the plastic material, wherein the contact element is preferably formed integrally with the second pressing element.
  • the second connection element is preferably formed of the plastic material.
  • a connection device is reusable.
  • the first receiving element and the contact element are integrally formed with the base body of the metal.
  • the first pressing member and / or the second connecting element are formed from the metal.
  • the receiving elements are preferably formed integrally with the base body of the metal.
  • the contact pressure elements and the abutment element are formed from the metal, wherein the abutment element is preferably formed integrally with the second contact pressure element.
  • the second connection element is preferably formed from the metal. In an embodiment of the contact element made of metal, the associated second connection element can have no spreading action.
  • a feed system enables a simple and rapid introduction of matrix material into the receiving space of the structural component semifinished product.
  • the first pump is connected to the first channel of the connection direction, whereas the second pump is connected to the second channel of the connection device.
  • the closure device By means of the closure device, the interior can be closed in a simple manner at an end which is opposite to the connection device, so that adjustment of the internal pressure is possible in a simple manner. Due to the closure device, the inner wall element does not have to close the interior itself. As a result, a simple production of fiber-reinforced structural components from a structural component semifinished product is made possible.
  • the structural component semifinished product can have a large length and be easily cut to the desired length for the production of fiber-reinforced structural components.
  • the resulting open end is closed by the closure device.
  • the closure device may, for example, have a sealing unit corresponding to the first sealing unit, which is connected in one piece with a contact element which can be inserted into the interior space and closes it.
  • the closure device may, for example, be designed in accordance with the connection device, but instead of a connection element with a passage opening, have a closure element without a passage opening.
  • the first pump is arranged on the side of the connection device, whereas the first pump is arranged on the side of the closure device when the matrix material is supplied with negative pressure.
  • the invention is further based on the object to provide a method which allows the introduction of matrix material into the receiving space of the structural component semifinished product in a simple and rapid manner. This object is achieved by a method having the features of claim 29.
  • the advantages of the method according to the invention correspond to the already described advantages of the delivery system according to the invention and the connection device according to the invention. The method can be developed in particular according to claims 1 to 28.
  • the structural component semifinished product has a first inner wall element, which is surrounded by a second outer wall element.
  • the wall elements are designed as hollow profiles, in particular hollow cylindrical. Preferably, the wall elements have a round or oval cross-section.
  • the wall members define a receiving space extending in a longitudinal direction in a radial direction or a transverse direction. In the receiving space reinforcing fibers are arranged, which must be soaked to form a fiber-reinforced structural component with a matrix material.
  • the inner wall element bounds an interior space.
  • the first inner wall element and / or the second outer wall element are preferably formed in one piece.
  • the first inner wall element and / or the second outer wall element are made of a bendable material, in particular a plastic material.
  • the first inner wall element and / or the second outer wall element are formed from a thermoplastic and / or elastomeric plastic material.
  • the inner wall element and / or the outer wall element are made of an elastically deformable material.
  • the deformation or bending can take place before and / or after the introduction of the matrix material.
  • a fiber-reinforced structural component is formed.
  • the first wall element and / or the second wall element can be removed as needed. Because the first wall element and / or the second wall element are formed from an elastically deformable material, in particular a plastic material, removal is possible in a simple manner. Due to the preferably one-part design of the first wall element and / or the second wall element, the fiber-reinforced structural component after removal on a smooth and burr-free surface. Due to this high surface quality, the surface of the structural component does not have to be reworked.
  • FIG. 1 shows a feeding system with a connecting device according to a first exemplary embodiment for introducing matrix material into a structural component semi-finished product
  • FIG. 2 shows a connecting device according to a second exemplary embodiment
  • a feeding system with a connecting device according to a third exemplary embodiment Hereinafter, a first embodiment of the invention will be described with reference to FIG. 1.
  • a feed system 1 serves to feed a matrix material 2 into a structural component semifinished product 3.
  • the structural component semifinished product 3 has a first inner wall element 4, which is surrounded by a second outer wall element 5.
  • the wall elements 4, 5 are hollow-cylindrical in shape and preferably arranged concentrically to a central longitudinal axis M s .
  • the wall elements 4, 5 are formed from a manually bendable material, in particular an elastically deformable plastic material.
  • the wall elements 4, 5 of one of the materials rubber, PCV, PE, PA, PU, PTFE and / or silicone.
  • the wall elements 4, 5 delimit in a radial direction or in a transverse direction a receiving space 6 which extends in a longitudinal direction.
  • reinforcing fibers 7 are arranged, which must be impregnated with the Materixmateri- al 2 to form a fiber-reinforced structural component.
  • the reinforcing fibers 7 are, for example, glass fibers, carbon fibers, aramid fibers, basalt fibers, hemp, flax, cotton or mixtures thereof.
  • the inner wall element 4 defines an inner space 8. Since the structural component semifinished product 3 is tubular, the annular receiving space 6 and the inner space 8 are open at both ends of the structural component semifinished product 3.
  • the feed system 1 has a connection device 9 and two pumps 10, 11.
  • a first pump 10 serves to introduce the matrix material 2 into the receiving space 6, whereas a second pump 11 serves to set an internal pressure pi in the interior 8.
  • the pumps 10, 1 1 are shown in Fig. 1 only schematically.
  • the connecting device 9 has a first main body 12, on which a first sealing unit 13 and a second sealing unit 14 are arranged.
  • the first basic body 12 is illustrated in FIG. 1 by dashed lines.
  • the first base body 12 is hollow-cylindrical in shape and defines a first base body interior 15.
  • a bore 16 is formed with an internal thread 17 into which a first connection element 18 with an associated external thread 19 is screwed.
  • the connection element 18 has a first passage opening 20, which opens into the main body interior 15.
  • the first sealing unit 13 has a first annular receiving element 21 with a first receiving opening 22 into which the structural component semifinished product 3 can be inserted.
  • the receiving element 21 is formed integrally with the base body 12. The inner sides of the receiving element 21 and the base body 12 are flush with each other.
  • an external thread 23 is formed, on which a first pressing element 24 with an associated internal thread 25 can be screwed.
  • the pressing element 24 has a second receiving opening 26, through which the structural component semifinished product 3 can be inserted.
  • an elastic sealing element 27 is arranged in one of the receiving element 21 and the pressing member 24 limited gap.
  • the sealing element 27 is annular and deformable for sealing.
  • the first sealing unit 13 serves to seal the receiving space 6 with respect to an environment 58.
  • the second sealing unit 14 has a contact element 28, which serves to abut against an inner side of the inner wall element 4 and can be inserted into the inner space 8.
  • the contact element 28 is formed integrally with the base body 12. Due to the one-piece design of the main body interior 15 is closed at one of the receiving opening 22 opposite side.
  • the abutment element 28 extends through the main body interior 15 and through the receiving openings 22 and 26, so that the space bounded by the abutment element 28 and by the base body 12 or the receiving element 21 and the pressing element 24 forms an annular space.
  • the abutment element 28 is conically formed on an outer side, so that the outer diameter increases in the direction of the end connected to the main body 12.
  • two sealing projections 29, 30 spaced apart in the direction of a center longitudinal axis M A are arranged.
  • the contact element 28 is hollow-cylindrical and has a recess in the form of a passage opening 31.
  • the contact element 28 is conically formed on an inner side, so that the passage opening 31 tapers.
  • the contact element 28 has an internal thread 32 into which a second connecting element 33 with an associated external thread 34 can be screwed.
  • the connecting element 33 is used when screwing as a spreading element for the contact element 28.
  • the connecting element 33 is also formed in a hollow cylindrical shape and has a through hole 35.
  • the second sealing unit 14 serves to seal the receiving space 6 with respect to the interior 8.
  • the passage opening 20 of the first connection element 18 and the annular main body interior 15 form a first channel 36 for feeding the matrix material 2 into the receiving space 6.
  • the passage opening 31 of the abutment element 28 and the passage opening 35 of the second connection element 33 form a second one Channel 37 for adjusting the internal pressure pi in the interior 8.
  • a spacer 38 is provided, which is insertable into the receiving space 6.
  • the stand holder 38 is hollow-cylindrical in shape and has a plurality of spacer channels 39 for the matrix material 2.
  • the spacer 38 has in the direction of the central longitudinal axis M A a length L H , which is greater than a distance L s of the connection element 18 to the distal end of the receiving element 21. This ensures on the one hand that in the region of the first sealing unit 13 of the receiving space 6 is not narrowed and on the other hand, a contact with the connection element 18 is possible.
  • connection element 18 and the spacer 38 are electrically conductive and in contact with each other.
  • the connection element 18 and the spacer 38 are preferably made of metal.
  • the feed system 1 has a closure device 40.
  • the locking device 40 comprises a second base body 41, which is formed in a hollow cylindrical shape and defines a second basic body interior 42.
  • a discharge element 43 is arranged, which forms a passage opening 44.
  • the discharge element 43 is included For example, formed and screwed in accordance with the connection element 18.
  • the closure device 40 has a third sealing unit 45, which is designed in accordance with the first sealing unit 13.
  • the sealing unit 45 accordingly has a third receiving element 46 with a receiving opening 47 and an associated external thread 48.
  • the receiving element 46 is formed integrally with the base body 41.
  • An associated pressing element 49 has a receiving opening 50 and an internal thread 51. Between the receiving element 46 and the pressing member 49, an elastic sealing element 52 is arranged.
  • the closure device 40 For closing the interior 8, the closure device 40 has a contact element 53 which can be inserted into the interior 8 and has two sealing projections 54, 55 arranged along a central longitudinal axis M v .
  • the contact element 53 is formed integrally with the main body 41.
  • the closure device 40 has a spacer 56 with spacer channels 57.
  • the connecting device 9 and the closure device 40 are formed from a plastic material.
  • An exception to this are the electrically conductive spacers 38, 56 and the electrically conductive connection element 18 and the electrically conductive discharge element 43, which are formed of metal.
  • the connection device 9 and the closure device 40 may be formed entirely of metal.
  • the feed system 1 has a component mold 59 which is formed from two mold halves which can be firmly connected to one another.
  • the component form 59 forms an open-end cavity, which serves to receive the structural component semifinished product 3.
  • the component form 59 or its cavity has a circular cross-sectional shape which corresponds to the circular cross-sectional shape of the structural component semifinished product 3, so that the structural component semifinished product 3 arranged in the cavity rests against the component form 59 with the outer wall element 5.
  • the component mold 59 is made of a non-metallic material, such as wood or a modeling material.
  • the feed system 1 has an electrical energy source 70, which is electrically conductively connected to the first connection element 18 and the discharge element 43. By means of the electrical energy source 70, a voltage U can be applied to the reinforcing fibers 7.
  • the assembly and operation of feeder s system 1 is as follows:
  • the spacers 38 and 56 are inserted end-to-end through openings A 2 , B 2 in the receiving space 6.
  • the pressing element 24 and the connecting element 33 is released.
  • the structural component semifinished product 3 is inserted with its end into the receiving openings 26 and 22, so that the contact element 28 is simultaneously introduced through an opening Ai into the interior 8.
  • the contact pressure element 24 is screwed onto the contact element 21, so that by means of the first sealing unit 13 a sealing effect is achieved.
  • the sealing effect is achieved by pressing the receiving element 21 against the outer wall element 5 and by deformation and contact of the sealing element 27 on the wall element 5.
  • the connecting element 33 is screwed into the contact element 28, whereby the contact element 28 is pressed with a higher contact pressure against the inside of the inner wall element 4. As a result, and by the sealing projections 29, 30, a sealing effect is achieved.
  • the connecting element 9 is in contact with the spacer 38.
  • the closure device 40 is mounted in a corresponding manner.
  • the contact pressure element 49 is released.
  • the structural component semifinished product 3 is then introduced into the receiving openings 50 and 47, whereby the contact element 53 is simultaneously introduced through an opening into the inner space 8 and closes the latter due to the sealing projections 54, 55.
  • the contact pressure element 49 is screwed onto the receiving element 46.
  • the pump 10 is connected to the connection element 18 and the pump 1 1 to the connection element 33. Furthermore, the electrical energy source 70 is electrically conductively connected to the connection element 18 and the output element 43 and, by means of the energy source 70, a voltage U is applied to the amplification fibers 7, so that a current flow takes place through them. Due to the flow of current, the connection devices 9, the structural component semifinished product 3 and the closure device 40 are heated. As a result, the viscosity of the matrix material 2 is lowered during introduction, so that the introduction is simplified. By means of the pump 10, the matrix material 2 is introduced into the receiving space 6 at a pressure p m or overpressure.
  • the matrix material 2 flows through the through-opening 20, the main body interior 15 and the spacer channels 39 into the receiving space 6. If the receiving space 6 is filled, the material 2 flows through the spacer channels 57, the main body interior 42 and the passage opening 44 in the environment 58.
  • the sealing unit 13 seals the receiving space 6 from the surroundings 58. Accordingly, the sealing unit 45 seals the receiving space 6 from the environment 58, so that the matrix material 2 can only escape through the discharge element 43 and be collected there.
  • the internal pressure pi must be adjusted in order to avoid impairing the quality of the later fiber-reinforced structural component.
  • the internal pressure pi is set via the second channel 37 by means of the second pump 11. If the matrix material 2 is introduced with an overpressure, a pressure medium, for example air, is pumped into the interior 8 by means of the second pump 11. As a result, an undesirable deformation of the inner wall element 4 is avoided. To avoid undesired deformation of the outer wall element 5, the outer wall element 5 surrounding the component mold 59 is additionally used.
  • the structural component semifinished product 3 After introduction of the matrix material 2, the structural component semifinished product 3 has to harden in its at least partially curved desired shape.
  • the electrical voltage U For easy introduction of the matrix material 2 and for accelerating the curing is applied to the terminal 18 and the discharge element 43, the electrical voltage U, so that via the connection element 18, the spacer 38, the reinforcing fibers 7, the spacer 56 and the discharge element 43, a current flow is generated, the matrix material 2 during insertion and heated in the receiving space 6.
  • the disassembly of the connecting device 9 and the closure device 40 follows after curing in the reverse manner to the assembly.
  • the receiving element 21 of the sealing unit 13 is not formed flush with the base body 12 in contrast to the first embodiment.
  • the receiving element 21 has a hollow cylindrical portion 60 and a tapered portion 61, which are integrally formed with each other.
  • the external thread 23 is formed.
  • the elastic sealing element 27 is arranged on the inner wall element 5 facing the inside.
  • the sealing element 27 is formed, for example, as a ring with a rectangular cross-section or as a band.
  • the third embodiment differs from the first embodiment by the formation of the second sealing unit 14.
  • the second sealing unit 14 has a second receiving element 62 with an associated receiving opening 63.
  • the receiving element 62 is arranged on a side facing the receiving element 21 side on the base body 12 and formed integrally therewith.
  • the receiving element 62 has an external thread 64, onto which an associated second pressing element 66 can be screwed by means of an internal thread 65.
  • the pressing member 66 has, according to the first sealing unit 13 has a tapered inner diameter for adjusting the contact pressure of the receiving element 62 to the wall element 4.
  • the contact element 28 is arranged concentrically to the central longitudinal axis M v on the contact pressure element 66 and formed integrally therewith.
  • the pressing element 66 has a receiving opening 67 arranged concentrically to the central longitudinal axis M v for insertion of the connecting element 33.
  • the contact element 28 forms a gap 68 with the receiving element 62 for clamping the wall element 4.
  • the receiving opening 63 tapers in its inner diameter in the direction of the contact element 28, so that the receiving element 62 forms an annular clamping edge 69 at its free end.
  • the outer wall element 5 is removed from the end of the structural component semifinished product 3, so that the inner wall element 4 with the reinforcing fibers 7 arranged thereon is exposed.
  • the length of the part of the outer wall element 5 to be removed depends on the size of the structural component semifinished product 3 and the associated gen connection device 9 from. Typically, the length to be removed is between 2 cm and 10 cm.
  • the spacer 38 is inserted, leaving a free end outside of the receiving space 6.
  • the screw connection of the first sealing unit 13 is first released.
  • the pressing member 66 is completely removed from the receiving member 62.
  • the connection element 33 is removed from the contact element 28.
  • the structural component semifinished product 3 is introduced through the receiving openings 26 and 22 into the main body interior 15. The insertion takes place until the outer wall element 5 has reached the end of the receiving element 21 or the main body interior 15 and the inner wall element 4 emerges from the main body interior 15 again through the receiving opening 67.
  • the inner wall element 4 is increasingly stretched, at the same time due to the formation of the receiving element 62, the gap 68 is increasingly reduced until the clamping edge 69, the inner wall element 4 clamped.
  • the connecting device 9 according to the invention enables a simple and rapid introduction of matrix material 2 into the receiving space 6, as a result of which low cycle times in the production of fiber-reinforced structural components can be achieved for industrial use.
  • the introduction of matrix material 2 with a high pressure p m or overpressure is made possible by the connecting device 9 according to the invention, whereby the receiving space 6 can be formed with a comparatively small radial dimension, so that the later fiber-reinforced structural component has a comparatively low weight .
  • the internal pressure pi in the inner space 8 geometry control of the inner wall element 4 and the reinforcing fibers 7 is made possible, so that fiber distortions or fiber compaction can be effectively avoided and the later fiber-reinforced structural component has a high quality.
  • p m For the pressure p m applies in particular: p m > 1.5 bar, in particular p m > 3.0 bar, in particular p m > 4.5 bar, and in particular p m > 6.0 bar.
  • p m 1.5 bar
  • p m > 6.0 bar By the surface pressure or the surface pressure of the sealing units 13, 14 on the one hand a frictional connection between the structural component semifinished product 3 and the connecting device 9 achieved and on the other hand, a simultaneous introduction of matrix material 2 and an adjustment of the internal pressure pi allows, as the receiving space 6 opposite the environment 58 and against the interior 8 is sealed.
  • direct mounting onto the cut-off structural component semifinished product 3 is possible, so that shortening of the outer wall element 5 and possibly the reinforcing fibers 7 can be avoided.
  • the connecting device 9 provides a second sealing unit 14 with a high sealing effect, since two sealing points are generated due to the conical clamping.
  • the spacer 38 ensures despite the flat radial contact pressure easy insertion of the matrix material 2 with the lowest possible resistance.
  • the spacer 38 in conjunction with the spacer 56 of the closure device 40 allows a current flow for accelerated curing of the matrix material 2.
  • the connection device 9 can be heated up to 80 ° C by introducing a current flow through the reinforcing fibers 7 before introducing the matrix material 2 , wherein the viscosity of the matrix material 2 and its flow properties are positively influenced.
  • a design of the connecting device 9 and / or the closure device 40 made of plastic material - with the exception of the electrically conductive components - is simple and inexpensive.
  • an embodiment of the connecting device 9 and / or the closure device 40 made of metal allows easy cleaning and reuse.
  • the connecting device 9 makes it possible to introduce the matrix material 2 with a pressure p m and an associated internal pressure pi of up to 20 bar.
  • the air contained in the receiving space 6 can escape during the introduction of the matrix material 2.
  • 8 hot air or steam can be introduced into the interior. As a result, heating of the connecting device 9 is possible, whereby the flow properties of the matrix material 2 with a pressure p m and an associated internal pressure pi of up to 20 bar.
  • Matrix material 2 can be improved.
  • the matrix material 2 has a lower viscosity due to the heated connection device 9 and the heated structural component semifinished product 3, which enables a simpler and faster introduction and accelerated hardening.
  • the second wall element 5 has an outer diameter D, for which the following preferably applies: 10 mm ⁇ D ⁇ 200 mm, in particular 15 mm ⁇ D ⁇ 150 mm, and in particular 20 mm ⁇ D ⁇ 100 mm.
  • the second wall element 5 furthermore has a radial wall thickness W 2 or W, wherein preferably: 5 ⁇ D / W ⁇ 30 and in particular 10 ⁇ D / W ⁇ 20.
  • the second wall element 5 preferably has a hardness of at most 100 Shore A, in particular of at most 90 Shore A, and in particular of at most 80 Shore A on. Due to the design of the second wall element 5, on the one hand, sufficient stability against pressure difference is achieved.
  • the wall elements 4, 5 are preferably formable such that a radius of curvature of the structural component semifinished product 1 of less than 10 D, in particular less than 8 D, in particular less than 6 D, and in particular less than 4 D can be achieved.
  • the wall elements 4, 5 are preferably made of plastic, in particular of a thermoplastic material.
  • the wall thickness Wi of the first wall element 4 and / or the wall thickness W 2 of the second wall element 5 may be the same or different.
  • the wall thicknesses Wi and / or W 2 are preferably between 1 mm and 6 mm, in particular between 1.5 mm and 5 mm, and in particular between 2 mm and 4 mm.
  • the structural component semifinished product 3 or the wall elements 4, 5 are of tubular design, wherein the openings to the receiving space 6 and the interior 8 are formed on the front side.
  • the connecting device 9 and the closure device 40 are adapted in their cross-sectional shape to the cross-sectional shape of the wall elements 4, 5.
  • the structural component semifinished product 3 preferably has a length of less than 10 m, in particular less than 6 m, in particular less than 4 m, in particular less than 3 m, in particular less than 2.5 m and in particular less than 2 m up.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Moulding By Coating Moulds (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

Dispositif de raccordement (9) qui comporte un premier canal (36), pour l'introduction de matériau matrice (2) dans une chambre de réception (6) pourvue de fibres de renforcement (7) d'un semi-produit (3) de pièce structurale. Un second canal (37) sert à réguler la pression interne dans un espace interne (8) du semi-produit (3) de pièce structurale. Une première unité d'étanchéité (13) servant à étanchéifier la chambre de réception (6) par rapport à l'environnement (58) est située sur un corps de base (12). En outre, une seconde unité d'étanchéité (14) servant à étanchéifier la chambre de réception (6) par rapport à l'espace interne (8) est située sur le corps de base (12). Ledit dispositif de raccordement (9) permet l'introduction simple et rapide du matériau matrice (2).
PCT/EP2014/055713 2013-03-22 2014-03-21 Dispositif de raccordement permettant d'introduire du matériau matrice dans une chambre de réception pourvue de fibres de renforcement d'un semi-produit de pièce structurale, système d'introduction pourvu d'un tel dispositif de raccordement, et procédé d'introduction de matériau matrice Ceased WO2014147224A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013205072.0 2013-03-22
DE102013205072.0A DE102013205072A1 (de) 2013-03-22 2013-03-22 Anschlussvorrichtung zum Einbringen von Matrixmaterial in einen mit Verstärkungsfasern versehenen Aufnahmeraum eines Strukturbauteil-Halbzeugs sowie Zuführsystem mit einer derartigen Anschlussvorrichtung und Verfahren zum Zuführen von Matrixmaterial

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WO2014147224A2 true WO2014147224A2 (fr) 2014-09-25
WO2014147224A3 WO2014147224A3 (fr) 2015-01-22

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PCT/EP2014/055713 Ceased WO2014147224A2 (fr) 2013-03-22 2014-03-21 Dispositif de raccordement permettant d'introduire du matériau matrice dans une chambre de réception pourvue de fibres de renforcement d'un semi-produit de pièce structurale, système d'introduction pourvu d'un tel dispositif de raccordement, et procédé d'introduction de matériau matrice

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DE102015201346A1 (de) * 2015-01-27 2016-07-28 Bayerische Motoren Werke Aktiengesellschaft Insertsystem und Verfahren zum Abdichten eines Inserts gegenüber einem Vorformling
CN112883533B (zh) * 2019-11-29 2024-04-30 上海飞机制造有限公司 复合材料c型梁铺丝方法、系统、铺丝机及存储介质

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010129975A2 (fr) 2009-05-15 2010-11-18 Universitaet Innsbruck Élément structural et procédé de fabrication

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GB727657A (en) * 1951-10-17 1955-04-06 Donald Salisbury Green Improvements in or relating to the manufacture of laminated, resin-impregnated hollow articles such as boat-hulls
US3896206A (en) * 1973-06-25 1975-07-22 Babcock & Wilcox Co Method for forming and curing a fiber reinforced hollow epoxy shaft
DE2928293C2 (de) * 1979-07-13 1986-08-07 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Verfahren zum Gewebeimprägnieren durch Harzinjektion
CN1149143C (zh) * 2000-05-08 2004-05-12 张鸣 塑料挤出串联式定型套模具及其制造方法
US7811495B2 (en) * 2005-01-26 2010-10-12 University Of Maine System Board Of Trustees Composite construction members and method of making
DE102010019666A1 (de) * 2010-04-28 2011-11-03 Technische Universität Dresden Aktorisches, sensorisches und/oder generatorisches Faserverbundbauteil und Verfahren zu seiner Herstellung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010129975A2 (fr) 2009-05-15 2010-11-18 Universitaet Innsbruck Élément structural et procédé de fabrication

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