WO2016020316A1 - Fabrication d'une matière textile de renforcement pour un matériau composite à base de fibres - Google Patents

Fabrication d'une matière textile de renforcement pour un matériau composite à base de fibres Download PDF

Info

Publication number
WO2016020316A1
WO2016020316A1 PCT/EP2015/067797 EP2015067797W WO2016020316A1 WO 2016020316 A1 WO2016020316 A1 WO 2016020316A1 EP 2015067797 W EP2015067797 W EP 2015067797W WO 2016020316 A1 WO2016020316 A1 WO 2016020316A1
Authority
WO
WIPO (PCT)
Prior art keywords
thread system
thread
fabric
threads
weaving
Prior art date
Application number
PCT/EP2015/067797
Other languages
German (de)
English (en)
Inventor
Benedikt WENDLAND
Christopher Lenz
Thomas Gries
Original Assignee
Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen
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 Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen filed Critical Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen
Publication of WO2016020316A1 publication Critical patent/WO2016020316A1/fr

Links

Classifications

    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/002With diagonal warps or wefts

Definitions

  • the present invention relates to a method for producing a textile reinforcing material for a fiber composite material.
  • Such fiber composites regularly consist of a textile embedded in a matrix material and are characterized by a high specific strength. Such materials are therefore used in particular in automotive or aerospace engineering.
  • WO 2011/095262 A1 discloses a multiaxial weaving method which is also known to the person skilled in the art as "open reed weaving technology" (ORW). Technology) is known.
  • ORW open reed weaving technology
  • two additional thread systems are woven into the fabric at almost freely adjustable angles. This is done by two laterally displaceable needle systems, which laterally guide the multiaxial threads and can lower them for binding.
  • the immersion of the threads is made possible by an open top Riet.
  • the lateral laying of the multi-axial threads is done in a zig-zag pattern with a maximum offset of 30 cm.
  • the object of the invention is therefore to solve the problems described with reference to the prior art, at least in part, and in particular to provide a method by which textile reinforcement can be produced for a fiber composite material that is characterized by a high multiaxial loading capacity.
  • a reinforcing material for a fiber composite material is to be specified, which is characterized by a high multiaxial resilience.
  • the method proposed herein for producing a textile reinforcing material for a fiber composite material comprises at least the following steps: a) weaving a fabric having a plurality of warp threads and a plurality of weft threads with a weaving machine;
  • the proposed method for producing a textile reinforcing material for a fiber composite material is carried out in particular according to the open reed weaving method.
  • the open-reed weaving method is known in principle to a person skilled in the art and is described in particular on page 2, line 32 to page 4, line 4 of WO 2011/095262 A1 (the description of which is fully incorporated herein by reference).
  • the method can be carried out in particular with a weaving machine which supports the open-reed weaving Technology dominates.
  • the textile reinforcing material produced by the proposed method is used to produce a fiber composite material.
  • the textile reinforcing material is embedded in a matrix material after its production.
  • Duroplast, an elastomer or a thermoplastic can be used in particular as matrix materials.
  • a fabric of the textile reinforcing material is woven with a plurality of warp threads and a plurality of weft threads with a weaving machine.
  • a weaving machine which in particular dominates the open-reed weaving technology, is also known in particular from page 9, line 1 to page 14, line 32 of WO 2011/095262 AI (the description there is here fully the subject of the description made).
  • the warp threads and weft threads are crossed at right angles.
  • the warp threads form the carrier, in which successively the weft threads are drawn from a first selvedge to a second selvedge.
  • the warp threads run parallel to a longitudinal side of the fabric and the weft threads parallel to a transverse side of the fabric.
  • a first thread system is woven in at an angle to the warp threads and weft threads during step a).
  • a second thread system is woven obliquely to the warp threads and weft threads during step a) (and optionally at the same time as step b)).
  • the first thread system and the second thread system are therefore additional thread systems in addition to the warp threads and weft threads.
  • the first thread system is, in particular, a first thread that is woven obliquely into the fabric or a plurality of first threads that are woven obliquely into the fabric and extend in particular parallel to one another.
  • the second thread system is in particular, a second thread that is woven obliquely into the fabric, or a plurality of second threads that are woven obliquely into the fabric and that extend in particular parallel to one another.
  • the majority of the first threads of the first thread system and / or the plurality of second threads of the second thread system run in particular in an identical (but staggered) pattern to one another and / or in particular with an offset in a weft direction of the weft threads and / or with an offset parallel to the warp threads.
  • the warp threads, the weft threads, the first thread system and / or the second thread system preferably consist essentially of glass fibers, carbon fibers, ceramic fibers, aramid fibers, boron fibers, basalt fibers, steel fibers, natural fibers and / or nylon fibers.
  • first thread system and the second thread system or the first threads of the first thread system and the second threads of the second thread system in particular over its entire length, not parallel to the warp threads and weft threads, but relative to the warp threads and weft threads at an acute or obtuse angle, in particular the first thread system and / or the second thread system may extend at an angle of 45 ° to the warp threads and / or weft threads.
  • step d) during steps a) to c), at least one first overlapping region is produced with a first overlapping direction between the first thread system and the second thread system, wherein the first thread system and the second thread system run parallel in the at least one first overlapping region and together form a loop.
  • the execution of steps a) to d) takes place in particular at least partially simultaneously.
  • the at least one first overlapping region is an area in which the first thread system and the second thread system in particular run perfectly parallel. This means in particular that the first thread system and the second thread system in which at least one overlap region substantially over its entire length touching.
  • a loop is to be understood in particular as meaning a region of the first thread system and of the second thread system which extends between two bonding points.
  • Abbindeddling applies here an area of the fabric in which the first thread of the first thread system and the second thread of the second thread system are secured by a warp thread and / or a weft thread to the fabric. Furthermore, the warp threads and the weft threads intersect at the setting points. In addition, the first thread of the first thread system and the second thread of the second thread system can run in the binding points between the warp threads and weft threads, so that the first thread of the first thread system and the second thread of the second thread system clamped in the setting points in particular between the warp threads and wefts are. After embedding the fabric in the matrix material, the matrix material serves as an adhesive which bonds the first thread system and the second thread system in the at least one overlapping region.
  • the first thread system and the second thread system form over the at least one first overlapping region a, in particular straight, connection between two longitudinal sides, two transverse sides and / or one longitudinal side and one transverse side of the fabric.
  • the fabric can have further thread systems running obliquely to the warp threads and weft threads, which form further overlapping areas, so that the fabric has further reinforcing directions.
  • the first thread system and the second thread system are laid in a zigzag pattern during steps b) and c).
  • the zig-zag pattern is a pattern of short stretches lined up at equal angles (repeated) so that their ends describe two parallel lines or arcs.
  • the zig-zag pattern in a weft direction has a maximum offset of 30 cm (centimeters).
  • the offset is preferably 5 cm to 30 cm.
  • the weft direction extends in particular parallel to the weft threads.
  • an "offset" is understood in particular to mean the shortest connection between two (adjacent) corner points of the zig-zag pattern parallel to the weft threads, and it is also advantageous if the first thread system and the second thread system are in the at least one first overlapping region Furthermore, it is advantageous if the first thread system and the second thread system have at least over the at least one first overlapping area two longitudinal sides, two transverse sides and / or one longitudinal side and one transverse side of the fabric This means, in particular, that the first thread system and / or the second thread system extend to one edge or both edges of the fabric, the connection being (essentially) rectilinear.
  • a force between two longitudinal sides, two transverse sides or a longitudinal side and a transverse side of the fabric is transferable.
  • the at least one first overlap region with a length of 1 to 500 mm (millimeters) is produced.
  • the length of the at least one first overlap region is preferably 1 mm to 35 mm.
  • a tensile strength is achieved between the first fiber system and the second fiber system, which corresponds to 95% of the tensile strength of a comparable continuous fiber.
  • a third thread system is woven obliquely to the warp threads and weft threads, wherein the first thread system, the second thread system and the third thread system each offset by one third of a laying width to each other, so that at least a second overlap region is generated with a second overlapping direction between the first thread system, second thread system or third thread system.
  • the laying width is to be understood in particular the width of the offset of the zigzag movement of the individual needles.
  • a reinforcing material for a fiber composite material which has a fabric to which a first thread system and a second thread system is attached, wherein the first thread system and the second thread system obliquely to warp threads and weft threads of the fabric and wherein the first thread system and the second thread system form at least a first overlap region with a first overlap direction.
  • a weaving machine with shedding elements through which a weaving shed limited by warp can be formed, further comprising means for entry of a weft thread in the shed in a weft direction and a displacement drive, which drives a displacement device in the weft direction, through which a first thread system or a second thread system in the weft direction can be moved, wherein the displacement drive can be controlled by a control device and wherein the control device is set up and provided for carrying out the method according to the invention.
  • FIGS. show particularly preferred embodiments of the invention, but this is not limited thereto.
  • the same components are provided in the figures with the same reference numerals. They show schematically:
  • FIG. 1 a first embodiment of a textile reinforcing material produced by the proposed method
  • FIG. 2 is an enlarged view of an overlapping area shown in FIG. 1
  • FIG 3 shows a second embodiment of a textile reinforcing material produced by the proposed method.
  • the fabric 1 shows a first exemplary embodiment of a textile reinforcing material 1 with a fabric 2.
  • the fabric 2 has a longitudinal side 14 and a transverse side 15 and comprises a multiplicity of warp threads 3 and weft threads 4 shown in FIG Fabric 2, according to steps a) to c) of the proposed method, a first thread system 6 and a second thread system 7 were woven into the fabric 2 at an angle to the warp threads 3 and the weft threads 4.
  • the first thread system 6 is shown in the figures as solid lines and the second thread system 7 as dashed lines.
  • the first thread system 6 consists of a plurality of first threads 17 and the second thread system 7 of a plurality of second threads 18, each offset parallel and in a weft direction 12 to each other.
  • the first threads 17 of the first thread system 6 and the second threads 18 of the second thread system 7 are each woven into the fabric 2 in a zigzag pattern 11 and have an offset 13 in the weft direction 12 between corner points 5 adjacent in the longitudinal direction 19 on.
  • step d) of the method between the first thread system 6 and the second thread system 7 produces a plurality of first overlapping regions 8 with a first overlapping direction 9, the first thread system 6 and the second thread system 7 running parallel in the first overlapping regions 8 and together at least one loop 10 shown in FIG form. Furthermore, the first overlapping areas 8 each have a length 16 in the first overlapping direction 9. The first thread system 6 and the second thread system 7 form a plurality of straight connections over the entire fabric 2 via the first overlapping regions 8.
  • FIG. 2 shows an enlarged view of the area marked II in FIG. 1. Further, the parallel course of a first thread 17 of the first thread system 6 and a second thread 18 of the second thread system 7 is shown in FIG. 2, FIG. 2 shows the warp threads 3 and weft threads 4 of the fabric 2 interlinked at right angles. which together form a plurality of loops 10 between bonding points 20.
  • 3 shows a second embodiment of a textile reinforcing material 1 with a fabric 2. This second embodiment differs from the first embodiment shown in FIG. 1 of the textile reinforcing material 1 by a third thread system 21, which is also inclined to the in FIG 2 warp threads 3 and weft threads 4 were woven into the fabric 2.
  • the first thread system 6 (shown with solid lines), the second thread system 7 (shown with roughly dashed lines) and the third thread system 21 (shown with fine dashed lines) each offset by one third of a laying width 22 to each other, so that a plurality of second Overlap sberei- Chen 23 are formed with a second overlap direction 24.
  • the textile reinforcing material 1 thus has a plurality of first overlap regions 8 with a first overlap direction 9 and a plurality of second overlap regions 23 with a second overlap device 24.
  • the method according to the invention and the reinforcing material according to the invention advantageously permit a multiaxial force transmission over the entire fabric width of the fabric.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)

Abstract

L'invention concerne un procédé de fabrication d'une matière textile de renforcement (1) pour un matériau composite à base de fibres, comprenant au moins les étapes suivantes : a) tissage d'un tissu (2) ayant une pluralité de fils de chaîne (3) et une pluralité de fils de trame (4) à l'aide d'un métier à tisser ; b) tissage d'un premier système de fils (6) de manière oblique par rapport aux fils de chaîne (3) et fils de trame (4) au cours de l'étape a) ; c) tissage d'un second système de fils (7) de manière oblique par rapport aux fils de chaîne (3) et fils de trame (4) au cours de l'étape a) ; et d) génération d'au moins une première zone de chevauchement (8) ayant une première direction de chevauchement (9) entre le premier système de fils (6) et le second système de fils (7) au cours des étapes a) à c), le premier système de fils (6) et le second système de fils (7) s'étendant dans l'au moins une première zone de chevauchement (8) parallèlement à travers au moins une boucle (10).
PCT/EP2015/067797 2014-08-07 2015-08-03 Fabrication d'une matière textile de renforcement pour un matériau composite à base de fibres WO2016020316A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014111268.7 2014-08-07
DE102014111268.7A DE102014111268A1 (de) 2014-08-07 2014-08-07 Herstellung eines textilen Verstärkungsmaterials für einen Faserverbundwerkstoff

Publications (1)

Publication Number Publication Date
WO2016020316A1 true WO2016020316A1 (fr) 2016-02-11

Family

ID=53800966

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/067797 WO2016020316A1 (fr) 2014-08-07 2015-08-03 Fabrication d'une matière textile de renforcement pour un matériau composite à base de fibres

Country Status (2)

Country Link
DE (1) DE102014111268A1 (fr)
WO (1) WO2016020316A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0263392A2 (fr) * 1986-10-01 1988-04-13 Meidai Chemical Co., Ltd. Tissu tétra-axial et métier à tisser des tissus triaxiaux
WO2003012184A2 (fr) * 2001-07-31 2003-02-13 Tetraxial S.R.L. Tissu tetraxial et machine permettant de fabriquer ledit tissu
WO2011095262A1 (fr) * 2010-02-06 2011-08-11 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Procédé et métier à tisser pour la production de tissus à effets trame supplémentaires

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1366124A (fr) * 1963-05-28 1964-07-10 Procédé et dispositif de tissage destinés à la confection d'un tissu comportant des fils de renforcement obliques supplémentaires, et tissu en résultant
DE8137512U1 (de) * 1981-12-23 1982-06-16 Kirson Patentverwertung und Vertriebsges.mbH, 8425 Neustadt Verstaerkungsgelege fuer flaechige produkte
DE10297843T5 (de) * 2002-12-27 2005-12-01 Tecminho Multiaxiales Textilgewebe und Webstuhl zu dessen Herstellung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0263392A2 (fr) * 1986-10-01 1988-04-13 Meidai Chemical Co., Ltd. Tissu tétra-axial et métier à tisser des tissus triaxiaux
WO2003012184A2 (fr) * 2001-07-31 2003-02-13 Tetraxial S.R.L. Tissu tetraxial et machine permettant de fabriquer ledit tissu
WO2011095262A1 (fr) * 2010-02-06 2011-08-11 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Procédé et métier à tisser pour la production de tissus à effets trame supplémentaires

Also Published As

Publication number Publication date
DE102014111268A1 (de) 2016-02-11

Similar Documents

Publication Publication Date Title
DE69417760T2 (de) Dreidimensionales gewebe und verfahren zu dessen herstellung
DE68909928T2 (de) Struktur mit orientierten fasern und verfahren zur herstellung.
DE19928635C1 (de) Verfahren zur Herstellung multiaxialer Kettengewirke
WO2013127460A1 (fr) Tissu pour l'utilisation dans des matériaux composites, et procédé de production de tissu et d'un corps en matériau composite
EP1112400B1 (fr) Procede pour produire une structure multiaxiale a partir de fils multifilaments
DE19624912C2 (de) Maschine zur Herstellung vorkonfektionierter Verstärkungsgelege
DE19716666A1 (de) Beanspruchungsgerechtes Verstärkungsgebilde
DE102008058270B4 (de) Textilmaschine
DE69002389T2 (de) Textilarmierung zum Herstellen von verschiedenen Komplexen und Verfahren zu deren Herstellung.
DE102011109231A1 (de) Verstärkungshalbzeug für Organobleche und Verfahren zu dessen Herstellung
DE102013014586B4 (de) Knotenlos gewirktes Netz mit diagonalem Schussfadenverlauf und Verfahren zur Herstellung
DE102007038931B4 (de) Fadenlagennähwirkstoffe
WO2016020316A1 (fr) Fabrication d'une matière textile de renforcement pour un matériau composite à base de fibres
EP2465982B1 (fr) Tissu pour l'utilisation dans des matières composites et procédé de fabrication du tissu et d'un corps en matière composite
EP3714091B1 (fr) Tissu unidirectionnel et son utilisation
DE102014105795B4 (de) Textilbetonteil und Verfahren zu dessen Herstellung
EP1723278B1 (fr) Complexe multiaxial
EP0680529A1 (fr) Procede et dispositif permettant de realiser des configurations textiles du type filet
DE102010015339B4 (de) Gelege-Anordnung
DE102013221176B4 (de) Verfahren zur Herstellung von maschenfreien multiaxialen Gelegen
DE102004052414B3 (de) Verfahren zum Herstellen einer eine biaxiale Gitterstruktur aufweisenden Kettenwirkware mit großen Gitteröffnungen
WO2014180846A1 (fr) Métier à tisser servant à fabriquer un tissu et tissu
DE3330900A1 (de) Verfahren zur herstellung eines gewebes, insbesondere foerderbandgewebes
DE202014009963U1 (de) Gewirk mit unidirektional verlaufenden Fasern
DE102012107895B3 (de) Verfahren zur Herstellung eines drapierfähigen Geleges

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15748213

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15748213

Country of ref document: EP

Kind code of ref document: A1