EP3372717A1 - Vernadelungsverfahren einer faserschicht - Google Patents

Vernadelungsverfahren einer faserschicht Download PDF

Info

Publication number
EP3372717A1
EP3372717A1 EP18159852.5A EP18159852A EP3372717A1 EP 3372717 A1 EP3372717 A1 EP 3372717A1 EP 18159852 A EP18159852 A EP 18159852A EP 3372717 A1 EP3372717 A1 EP 3372717A1
Authority
EP
European Patent Office
Prior art keywords
needling
fibrous layer
during
head
along
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.)
Granted
Application number
EP18159852.5A
Other languages
English (en)
French (fr)
Other versions
EP3372717B1 (de
Inventor
Hervé EVRARD
Gareth Clarke
Edouard BORIE
Thierry CONSTANT
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.)
ArianeGroup SAS
Original Assignee
ArianeGroup SAS
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 ArianeGroup SAS filed Critical ArianeGroup SAS
Publication of EP3372717A1 publication Critical patent/EP3372717A1/de
Application granted granted Critical
Publication of EP3372717B1 publication Critical patent/EP3372717B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/02—Needling machines with needles
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
    • D04H3/105—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by needling
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling

Definitions

  • the invention relates to a process for needling a fibrous layer, and in particular to producing a fibrous preform by needling bonding a fibrous layer to an underlying fibrous structure.
  • the needling processes are known for the manufacture of fibrous preforms formed of a stack of a plurality of fibrous layers.
  • the fibrous layers are successively stacked on a needling table and needled by action of a needling head.
  • this layer is bonded with the underlying layer (s).
  • the resulting fibrous preform can be densified by a matrix in order to form a part made of composite material.
  • the present invention aims to improve the mechanical properties of composite material parts comprising a fibrous reinforcement formed by needling.
  • the needles of the needling head are offset with respect to the fibrous layer. It follows that, during the second needling step, the needles do not penetrate the holes formed during the first needling step. In this way, a fibrous layer having a more uniform needling is obtained. This makes it possible to obtain a better introduction of the matrix material during the formation of the part, and thus to improve the mechanical properties thereof. The fact that the needles do not penetrate the same holes also makes it possible to reduce the risk of damage to the fibrous layer during needling.
  • the translation performed during the first needling step is performed along an axis of displacement, and the offset direction is non-perpendicular to this axis of displacement.
  • the offset direction is parallel to the axis of displacement.
  • the translation performed during the first needling step is performed along an axis of displacement, and the offset direction is perpendicular to this axis of displacement.
  • the translation performed during the first needling step is performed in a first advancing direction
  • the translation performed during the second needling step is performed in a second advancing direction, opposite the first sense of advance.
  • the fibrous layer is displaced in translation along an axis of displacement during each of the first and second needling steps and the position of the needling head along the axis of displacement is fixed. during each of the first and second needling steps.
  • the fact of making the needling during the stopping phases advantageously reduces the shearing of the fibrous layer during needling and further improves the mechanical properties of the part.
  • the needling head is held stationary and the fibrous layer is displaced by the distance d along the offset direction during the shifting step.
  • the coefficient x is between 0.1 and 0.9, for example between 0.2 and 0.8, for example between 0.3 and 0.7, or even between 0.4 and 0, 6.
  • the present invention also relates to a process for manufacturing a needled multilayer fibrous preform comprising at least the needling bonding of a fibrous layer to an underlying fibrous structure by carrying out a method as described above.
  • a needling machine 100 comprising a needling head 110 provided with needles 111 and a support, constituted here by a table 120, carrying the fibrous layer 10 to needling.
  • the needling head 110 can move vertically, that is to say in the direction Z indicated in the figures, above the table 120.
  • the needling head 110 moves from top to bottom and from bottom to top in the vertical direction Z, as illustrated by the double arrow 112.
  • the needling head 110 is thus driven by a vertical reciprocating movement (that is to say from va-et -sili) relative to the table 120.
  • the needling head 110 carries a determined number of needles 111 which are provided with barbs, hooks or forks to take fibers in the fibrous layer 10 and transfer them therethrough .
  • these needles 111 are arranged in several rows of needles, these rows are visible at the figure 3 .
  • the needles 111 are uniformly distributed over a surface of the needling head 110. Two rows of consecutive needles 111 in the X direction indicated in the figures are separated by a distance noted p .
  • the table 120 extends in horizontal directions X and Y perpendicular to the direction Z (see figure 3 ).
  • the table 120 is movable in translation along the axis of displacement constituted by the direction X.
  • the table 120 is here mounted on a post 130 movable in translation in a rail 140 extending along the direction X. The table 120 can thus be moved in rectilinear translation along the axis of displacement X below the needling head 110.
  • the figure 1 shows the needling machine 100 at the beginning of the first needling step.
  • the fibrous layer 10 is displaced in translation along the axis of displacement X in a first advancing direction D1.
  • the fibrous layer 10 may be a single or multidirectional fabric layer or web.
  • the fibers of the fibrous layer 10 may be carbon fibers or ceramic fibers.
  • the position of the needling head 110 along the X and Y directions is unchanged during the first needling step.
  • the needling head 110 is here only driven reciprocally transversely relative to the fibrous layer 10 during the first needling step. In this case, the needling head 110 is only moved vertically back and forth along the direction Z during the first needling step.
  • the fibrous layer 10 could be held fixed and the needling head 110 translated during the first needling step.
  • the figure 2 shows the arrangement of the different elements obtained at the end of the first needling step.
  • the needles 111 penetrate the fibrous layer 10 and form in the latter a first set of holes 11a.
  • Two holes 11a of the first set succeeding one another along the axis of displacement X are spaced from the pitch p which corresponds to the distance separating two consecutive needles 111 along the axis X.
  • the holes 11a correspond to the location where the needles 111 are returned to the fibrous layer 10 during the first needling step.
  • the figure 3 is a perspective view of the fibrous layer obtained after the first needling step showing the first set of holes 11a.
  • the figure 4 is, in turn, a top view of the first fibrous layer 10 on the table 120 just after implementation of the first needling step.
  • the fibrous layer 10 is in a first position relative to the needling head 110 (position illustrated in FIGS. figures 2 and 3 ). In this first position, the needles 111 of the needling head 110 are located opposite holes 11a formed in the fibrous layer.
  • a step of shifting the fibrous layer 10 with respect to the needling head 110 will be carried out.
  • the purpose of this shifting step is to make the needles 111 not go back again. not the holes 11a during the second needling step.
  • the needling head 110 is fixed during the shifting step and it is the fibrous layer 10 which is displaced by a predetermined distance d.
  • d a predetermined distance
  • the fibrous layer 10 was fixed and the needling head movable during the shifting step.
  • the figure 5 illustrates the relative arrangement obtained once the shift step performed. As illustrated in figure 5 the needling head 110 is in a second position with respect to the fibrous layer 10 after the shifting step.
  • the needles 111 are facing areas 12 of the fibrous layer 10 located between the holes 11a of the first set.
  • the needles 111 of the needling head 110 are positioned between holes 11a of the first set to ensure that these needles 111 do not enter the holes 11a during the second needling step.
  • the fibrous layer 10 is displaced in the direction of shift DD which is here is parallel to the axis of displacement X.
  • the fibrous layer has been displaced in the illustrated example by a distance d substantially equal to 0.5 p where p is the distance between two consecutive needles 111 along the offset direction DD (or the X axis).
  • N could alternatively take another value like the value 2, 3 or 4 ... and x could take a value other than 0.5 as long as this value is strictly greater than 0 and strictly less than 1.
  • the product Nx can not not be a whole number.
  • the second needling step is then carried out, the fibrous layer 10 being in the second position at the beginning of the second needling step.
  • the fibrous layer 10 is displaced in translation along the axis of displacement X in a second advancing direction D2.
  • the position of the needling head 110 along the X and Y directions is unchanged during the second needling step.
  • the needling head 110 is here only driven reciprocating transversely relative to the fibrous layer 10 during the second needling step. In this case, the needling head 110 is only moved vertically back and forth along the direction Z during the second needling step. According to one variant, it would however be possible to maintain the fibrous layer 10 fixed and to move the needling head 110 in translation during the second needling step.
  • the second advancing direction D2 is opposite to the first advancing direction D1.
  • the fibrous layer 10 is displaced in translation along the same axis of displacement X as during the first needling step but in an opposite advancing direction D2.
  • the illustrated example therefore relates to a "round-robbing" needling process during which the fibrous layer 10 undergoes the first needling step on the go and undergoes the second return needling step.
  • the needles 111 penetrate the fibrous layer 10 and form in the latter a second set of holes 11b.
  • the advancing speed of the fibrous layer 10, or the needling head if the latter is movable, may be identical during the first and second needling steps.
  • the impact frequency of the needles 111 on the fibrous layer 10 may be identical during the first and second needling steps.
  • Two holes 11b of the second set succeeding one another along the axis of displacement X are spaced from pitch p .
  • the fibrous layer has an alternation between the holes 11a of the first set and the holes 11b of the second set when moving along the axis of displacement X. Due to the realization of the shifting step, the impact of the needles 111 carried by the needling head 110 will not be performed in the holes 11a of the first set during the second needling step.
  • the fibrous layer illustrated in FIGS. Figures 6 and 7 comprising the first set of holes 11a and the second set of holes 11b, offset from the first set.
  • the holes 11a and 11b of the first and second assemblies are formed in the same fibrous layer 10. The realization of the offset step between the first and second needling stages thus makes it possible to standardize the distribution of the needling points without damaging them. the fibrous layer.
  • each of the first and second needling steps there may be an alternation of translation phases along the axis of displacement and of stop phases along this axis, the needling of the fibrous layer being achieved by the needling head during the stop phases.
  • the translation performed during the first and second needling steps are performed incrementally.
  • the needling is advantageously carried out only during the stopping phases.
  • alternation between the translation phases of the fibrous layer along the axis of displacement and the stopping phases of this fibrous layer can be performed, the needling being performed during these stop phases. It is also possible, during each of the first and second needling steps, to alternate between phases of translation of the needling head along the axis of displacement and the stopping phases of this needling head.
  • the invention also relates to the variant where the displacement is carried out continuously during the needling steps.
  • the needles of the needling head may also have an elongated shape giving them a flexibility limiting the shear of the fibrous layer.
  • the example just described illustrates the needling of a single fibrous layer. It is not beyond the scope of the invention when the fibrous layer needled by the process according to the invention is positioned on an underlying fibrous structure.
  • the fibrous structure may comprise one or more fibrous layers, for example interconnected by needling.
  • the needling produced allows fibers of the fibrous layer 10 to penetrate into the underlying fibrous structure, thus ensuring the connection of the fibrous layer to this structure.
  • a fibrous preform is thus obtained for forming the fibrous reinforcement of a piece of composite material to be obtained.
  • a second fibrous layer can be positioned thereon.
  • This second fibrous layer may then be needled by the method according to the invention in order to be connected to the first underlying layer.
  • a descent step may be imposed on the table 120 to control the penetration depth of the needles within the first and second fibrous layers.
  • the process can be repeated by stacking at least one third fibrous layer on the first and second fibrous layers.
  • FIG. figure 8 shows in the lower part the fibrous layer 10 before performing the first needling step (no hole has yet been made).
  • the fibrous layer 10 has been represented after completion of the first needling step before and after the shift step in the direction DD (the position of the holes 11a shown in the upper part corresponds to the position before shift).
  • the middle part of the figure 8 illustrates, for its part, the fibrous layer after the second needling step in which there is presence of holes 11b of the second set alternating with the holes 11a of the first set.
  • the invention is however not limited to carrying out an offset along an offset direction DD parallel to the axis of displacement X, as will be described below.
  • the figure 9 illustrates the case of an offset in a direction of shift DD transverse and not perpendicular to the axis of displacement X.
  • the offset direction DD forms an angle substantially equal to 45 ° with the axis X.
  • the fibrous layer 10 is translated in a second advancing direction D2, opposite to the first advancing direction D1 , during the second needling step.
  • a fibrous preform of a composite material part can be formed by performing a needling process as described above. Once this preform obtained, it is possible in known manner to form a matrix in the porosity of this preform.
  • the matrix densifying the fibrous preform may be organic, ceramic or carbon.
  • Various methods of forming a matrix known per se, can be envisaged, for example the injection of a liquid polymer and the thermal treatment of the latter in order to crosslink it, and possibly to pyrolyze it, in order to form the matrix. . It is also possible to use a gaseous densification method in which the matrix is formed by infiltration with a precursor in the gaseous state.
  • the composite material part obtained may be a valve body or a valve needle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
EP18159852.5A 2017-03-07 2018-03-05 Vernadelungsverfahren einer faserschicht Active EP3372717B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1751829A FR3063744B1 (fr) 2017-03-07 2017-03-07 Procede d'aiguilletage d'une couche fibreuse

Publications (2)

Publication Number Publication Date
EP3372717A1 true EP3372717A1 (de) 2018-09-12
EP3372717B1 EP3372717B1 (de) 2019-12-18

Family

ID=59699738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18159852.5A Active EP3372717B1 (de) 2017-03-07 2018-03-05 Vernadelungsverfahren einer faserschicht

Country Status (3)

Country Link
US (1) US10793982B2 (de)
EP (1) EP3372717B1 (de)
FR (1) FR3063744B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023124122A1 (zh) * 2021-12-30 2023-07-06 隆基绿能科技股份有限公司 一种碳纤维预制体及其生产方法、耐高温碳碳复合体

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090038129A1 (en) * 2007-08-09 2009-02-12 Oskar Dilo Maschinenfabrik Kg Device and Method for Needling a Nonwoven Web
EP2816147A1 (de) * 2013-06-20 2014-12-24 Messier-Bugatti-Dowty Tisch und Verfahren zur Vernadelung einer Textilstruktur, die aus einer ringförmigen Faservorform gebildet wird, mit radialer Versetzung des Vernadelungskopfs

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US460805A (en) 1891-10-06 Augusta whiffle
GB1145761A (en) * 1965-09-13 1969-03-19 Ici Ltd Nonwoven fabrics and a process for making them
US3431611A (en) * 1966-09-16 1969-03-11 Gen Electric Method for forming nonwoven electric blanket shells
US3909891A (en) 1972-01-18 1975-10-07 Dilo Kg Oskar Needling Apparatus
US3845529A (en) * 1972-08-31 1974-11-05 Riegel Textile Corp Apparatus and process for tacking fabrics
US4790052A (en) 1983-12-28 1988-12-13 Societe Europeenne De Propulsion Process for manufacturing homogeneously needled three-dimensional structures of fibrous material
FR2557550B1 (fr) 1983-12-28 1986-05-30 Europ Propulsion Procede et appareillage pour la fabrication de structures tridimensionnelles de revolution
US4878278A (en) 1987-08-05 1989-11-07 Wangner Systems Corporation Method for manufacture of paper making fabrics
AT400852B (de) 1994-05-02 1996-04-25 Fehrer Textilmasch Vorrichtung zum nadeln eines kreisförmigen, insbesondere kreisringförmigen faservlieses
US5662855A (en) 1994-05-17 1997-09-02 The B.F. Goodrich Company Method of making near net shaped fibrous structures
FR2741634B1 (fr) 1995-11-27 1998-04-17 Europ Propulsion Procede pour la realisation de preformes fibreuses destinees a la fabrication de pieces annulaires en materiau composite
US6568050B2 (en) * 2001-02-26 2003-05-27 Messier-Bugatti Method and installation for advancing a needled fiber plate
FR2824084B1 (fr) 2001-04-30 2003-08-01 Messier Bugatti Alimentation aiguilleteuse par bande spirale continue
US7430790B1 (en) * 2005-04-26 2008-10-07 Don Bowles Felting machine
WO2014194307A1 (en) 2013-05-31 2014-12-04 Advanced Carbon Technologies, Llc Methods of manufacturing low density cloth preform

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090038129A1 (en) * 2007-08-09 2009-02-12 Oskar Dilo Maschinenfabrik Kg Device and Method for Needling a Nonwoven Web
EP2816147A1 (de) * 2013-06-20 2014-12-24 Messier-Bugatti-Dowty Tisch und Verfahren zur Vernadelung einer Textilstruktur, die aus einer ringförmigen Faservorform gebildet wird, mit radialer Versetzung des Vernadelungskopfs

Also Published As

Publication number Publication date
US20180258566A1 (en) 2018-09-13
EP3372717B1 (de) 2019-12-18
FR3063744B1 (fr) 2021-06-04
FR3063744A1 (fr) 2018-09-14
US10793982B2 (en) 2020-10-06

Similar Documents

Publication Publication Date Title
EP2067757B1 (de) Herstellungsverfahren von Verbundwerkstoffteilen mit Karbonfaserverstärkung
EP2841631B1 (de) In einem stück dreidimensional gewebter faserzuschnitt zur herstellung einer plattform mit einer geschlossenen kastenstruktur für einen turbomaschinenlüfter aus einem verbundmaterial
EP2791405B1 (de) Faserstruktur zur verstärkung von verbundwerkstoffteilen mit einem teil mit reduzierter dicke
CA2147040C (fr) Procede et machine pour la realisation d'une armature pour une piece de matiere composite
EP3052685B1 (de) Faserstruktur mit gruppierung von flottierungen
CA2860379C (fr) Piece de renfort a section en .pi. en materiau composite, notamment plate-forme de souffante de turbomachine, et son procede de fabrication
EP0573353A1 (de) Hochtemperaturbeständiger Verbundwerkstoff mit Honigwabenstruktur und Verfahren zu seiner Herstellung
EP3302943B1 (de) Verfahren zum imprägnieren einer hohlen fasrigen textur
EP3313651B1 (de) Siliciumcarbidfaserbehandlungsverfahren
EP3372717B1 (de) Vernadelungsverfahren einer faserschicht
WO2013088041A2 (fr) PREFORME FIBREUSE A SECTION EN π NOTAMMENT POUR PLATE-FORME DE SOUFFLANTE EN MATERIAU COMPOSITE
FR3071257A1 (fr) Procede d'injection d'une suspension chargee dans une texture fibreuse et procede de fabrication d'une piece en materiau composite
EP1397546B1 (de) Vernadelungsmaschine mit glattem tisch
EP1054091B1 (de) Unidirektionale Bahn aus Kohlenstofffasern
EP2813610B1 (de) Zugvorrichtung mit nadeln für zu vernadelnde spiralförmige faserbahn
FR3085126A1 (fr) Procede de fabrication d'une preforme composite pour la fabrication d'un panneau composite a geometrie a double courbure
EP3372718B1 (de) Herstellungsverfahren einer vernadelten faserstruktur
EP3350139A1 (de) Teil aus einem verbundwerkstoff
CA2617676A1 (fr) Dispositif de tricotage pour la confection d'un textile double face epais
FR2890398A1 (fr) Etoffe complexe pour moulage par infusion
FR2653142A1 (fr) Materiau composite et son procede de realisation.
FR2718756A1 (fr) Procédé et machine pour la réalisation d'une armature en forme de bloc pour une pièce de matière composite.
WO2014184474A1 (fr) Procédé de fabrication de pièces composites non planes
WO2018073512A1 (fr) Procede de fabrication d'un renfort textile, et renfort associe
FR2832739A1 (fr) Procede de realisation d'une preforme textile multidirectionnelle, dispositif pour sa mise en oeuvre et preforme ainsi obtenue

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180305

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20190723

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602018001629

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1214705

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200115

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20191218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200318

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200318

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200513

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200418

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602018001629

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1214705

Country of ref document: AT

Kind code of ref document: T

Effective date: 20191218

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

26N No opposition filed

Effective date: 20200921

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200305

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200305

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210331

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602018001629

Country of ref document: DE

Representative=s name: CBDL PATENTANWAELTE GBR, DE

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230612

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240320

Year of fee payment: 7

Ref country code: GB

Payment date: 20240320

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20240329

Year of fee payment: 7

Ref country code: FR

Payment date: 20240328

Year of fee payment: 7