• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a device for baking / consolidating a textile preform pre-impregnated with a polymer, characterized in that it comprises: a. a die, devoid of heating and cooling means, comprising a molding face reproducing the shape of the textile preform and a mounting interface; b. tight bagging of the preform on the die; vs. vacuum extraction means of the interior of the bagging comprising the textile preform; d. a thermal block, comprising induction heating means and a receiving interface cooperating with the mounting interface of the matrix for its positioning and heat transfer between said matrix and said thermal block.
    公开号:FR3051135A1
    申请号:FR1670220
    申请日:2016-05-10
    公开日:2017-11-17
    发明作者:Jose Feigenblum
    申请人:RocTool SA；
    IPC主号:
    专利说明:

    The invention relates to a device and a method for molding and consolidating a textile preform. The invention belongs to the field of consolidation / firing of a preform consisting of a lamination of fibrous plies pre-impregnated with a thermosetting or thermoplastic polymer.
    According to the prior art, the folds constituting the preform are draped manually or by means of a draping machine on a matrix reproducing the shape of the part to be obtained. The techniques for draping plies pre-impregnated with a thermosetting or thermoplastic polymer are known from the prior art and are not discussed further. After the draping, the stratification obtained and the matrix are bagged tightly by a tarpaulin. The inside of said tarpaulin, comprising the textile preform, is drawn under vacuum and placed either in an oven or in an autoclave, in order to bring the preform, matrix and bagging assembly to a consolidation or pressure cooking temperature.
    Both the autoclave and the oven are frequently unique means of production in a manufacturing facility and constitute strangulation in the production flow, especially in the case of thermosetting matrix composite whose resin has a finite open time for carrying out the cooking. In addition, the rise in temperature of the assembly consisting of the tool and the preform to the cooking / consolidation temperature is long in such means.
    Also, many autonomous tools, including their own heating means have been developed. Said devices comprise integrated heating means, in the form of electrical resistances, oil circulation ducts, or inductors. However, the integration of these heating means in the tooling is expensive in terms of machining.
    WO2015 / 155369 discloses a baking device / consolidation of a textile preform, self-heating and interchangeable matrix. This device of the prior art is more particularly adapted to the production of a large part but remains complex in its design to integrate the heating and cooling means with regard to smaller parts, whose surface is less than or equal to about 1m2. The invention aims to solve the disadvantages of the prior art and concerns for this purpose a device for baking / consolidating a textile preform pre-impregnated with a polymer comprising: a. a die, devoid of heating and cooling means, comprising a molding face reproducing the shape of the textile preform and a mounting interface; b. tight bagging of the preform on the die; vs. vacuum extraction means of the interior of the bagging comprising the textile preform; d. a thermal block, comprising induction heating means and a receiving interface cooperating with the mounting interface of the matrix for its positioning and heat transfer between said matrix and said thermal block.
    Thus the heating means are not worn by the matrix which remains simple embodiment. The mounting interface makes it possible to use the same thermal block for a plurality of tools. The invention is advantageously implemented according to the embodiments and variants described below, which are to be considered individually or in any technically operative combination.
    Advantageously, the thermal block comprises cooling means
    According to an embodiment more particularly adapted to the firing of a textile preform pre-impregnated with a thermosetting resin, the device which is the subject of the invention comprises: e. a sealed enclosure and locking means of said enclosure on the matrix; f. means for mounting the pressure inside the sealed enclosure
    Advantageously, the thermal block of the device which is the subject of the invention comprises: di. a medium comprising the receiving interface and a heating interface; dii. a thermal accumulator, heated by the induction heating means; diii. means for communicating the heat of the heat accumulator to the support by the heating interface.
    This embodiment makes it possible to limit the need for electrical power for supplying the heating means of the thermal block while benefiting from the advantages of induction heating.
    Advantageously, the cooling means comprise a circuit for circulating a coolant in the support.
    Advantageously, the cooling means comprise a circuit for circulating a coolant around the heat accumulator.
    Advantageously, the heating interface comprises a conformation sheet. Thus, said conformation sheet provides a perfect mechanical contact at the heating interface and reduces the thermal contact resistance between the thermal accumulator and the support.
    Similarly, the matrix mounting interface includes a conformation sheet. The invention also relates to a method for baking or consolidating a textile preform pre-impregnated with a polymer, using the device according to the invention according to any one of its embodiments, which method comprises the steps consisting of: i. bag the preform previously draped over the matrix; ii. vacuum the inside of the bagging: iii. transfer the matrix and the bagged preform to the heat block; iv. subject the preform to a thermal baking consolidation cycle by regulating the temperature of the preform by heating and cooling the thermal block
    According to an embodiment suitable for baking a textile preform impregnated with a thermosetting polymer, the method which is the subject of the invention comprises, between steps ii) and iv), a step of increasing the pressure in the enclosure The invention is explained below according to its preferred embodiments, in no way limiting, and with reference to FIG. 1, showing in sectional views the device that is the subject of the invention in an embodiment grouping together all the optional features of it. Figure 1A in the cooling phase and Figure 1B in the heating phase.
    According to this exemplary embodiment, the device according to the invention comprises a matrix (110) on which is draped a textile preform (100) consisting of a lamination of fibrous folds pre-impregnated with a thermosetting or thermopastic polymer. Said preform (100) is bagged on the matrix (110) by means of a vacuum cover (120), implementing sealing means (121) so that the space between the matrix (110) ) and the vacuum cover, comprising the preform (100) is sealed. According to this exemplary embodiment, the matrix (110) comprises ducts (111) opening into said space, which ducts are connected to a suction pump (not shown) so as to draw this space to vacuum. A sealed enclosure (130) enclosing the preform is locked to the die by suitable assembly means (132). Said enclosure comprises a conduit (132) connected to a pump in order to increase the pressure in said enclosure. Thus, this upper assembly comprising the matrix (110) the bagging means and the sealed chamber constitutes an autonomous assembly, allowing the implementation of the pressure cycle corresponding to the consolidation / cooking of the textile preform.
    The thermal consolidation / firing cycle of the textile preform is obtained by placing the upper assembly on a thermal block, which thermal block comprises, according to this exemplary embodiment: a support (140) consisting of a material having a good thermal conductivity, for example, an aluminum alloy; a base (150) preferably consisting of a refractory material transparent to the magnetic field, for example a concrete or a ceramic; - A thermal accumulator (160) consisting of a material capable of being heated by induction.
    The base comprises an induction circuit comprising one or more inductors (151) flowing in cavities formed in said base, and connected to a high frequency current generator, typically between 10 kHz and 100 kHz.
    The support (140) comprises channels (141) for the circulation of a heat transfer fluid for cooling said support. The matrix is connected to the support (140) via a standard profile interface, so that a plurality of upper sets, corresponding to the same shape or to different shapes is likely to take position on the block. thermal. The mounting surface of the matrix, which surface ensures the positioning of said matrix on the receiving surface of the support (140) advantageously comprises a shaping sheet (112). Said conformation sheet is for example brazed to the assembly surface of the matrix and consists of a material having a good thermal conductivity but malleable, such as copper or nickel, so that said conformation sheet compensates for slight differences in shape between the assembly surface of the die and the support receiving surface (140).
    On the face opposite to the receiving face, the support comprises a heating surface capable of coming into contact with the thermal accumulator. Advantageously, the heating surface comprises a shaping foil (142) brazed to said heating surface and able to compensate for slight differences in shape between said accumulator (160) and the heating surface of the support (140). Figure 1A, in the absence of heating, the accumulator (160) is not in contact with the heating surface. However, said accumulator (160) is nevertheless maintained at a so-called holding temperature via the inductors. The contact resistance between the accumulator (160) and the heating surface is high and the thermal transfer between the heat accumulator (160) and the support (140) is reduced.
    Figure 1B, during heating, the temperature of the accumulator is increased, so that it expands thermally and comes into contact with the heating surface of the support (140). The contact resistance drops, and the heat accumulator transmits its heat to the support. Said heat accumulator (160) has no structural function in the device object of the invention. Its constitution is thus chosen to optimize its response to induction heating and its ability to transfer heat to the support (140). According to a particular embodiment, detail Z, said accumulator is of honeycomb structure, each cell (165) being filled with a phase change material having latent heat transition. Advantageously, the phase change material is chosen so that its transition temperature is close to the holding temperature of the thermal accumulator. By way of example, if the holding temperature is of the order of 200 ° C., the phase-change material is, for example, an organic material such as a polyol. If the holding temperature is higher, for example of the order of 400 ° C, or more, the phase change material is for example a salt. According to these examples, the phase change material changes from the solid state, at low temperature, to the liquid state at a higher temperature by absorbing latent heat of transition. By passing from the high temperature phase to the low temperature phase the phase change material solidifies and restores said latent heat of transition. The combination of the honeycomb structure and the presence of a phase change material makes it possible to increase the apparent thermal inertia of the heat accumulator (160) during its maintenance at the holding temperature, while maintaining a cooling capacity. fast heating up to the heating temperature.
    The cooling of the matrix and consequently of the preform is achieved by the circulation of the heat transfer fluid in the channels (141) of the suport. Advantageously, the base (150) comprises ducts (152) for the supply of a heat transfer fluid around the heat accumulator (160) so as to accelerate its cooling to its holding temperature after the heating phase and maintaining the temperature of the matrix.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    1. Device for cooking / consolidating a textile preform pre-impregnated with a polymer, characterized in that it comprises: a. a die, devoid of heating and cooling means, comprising a molding face reproducing the shape of the textile preform and a mounting interface; b. Waterproof bagging of the preform on the matrix; vs. Vacuum drawing means of the interior of the bagging comprising the textile preform; d. a thermal block, comprising induction heating means and a reception interface cooperating with the matrix mounting interface for its positioning and the heat transfer between said matrix and said thermal block
    [2" id="c-fr-0002]
    2. Device according to claim 1, wherein the thermal block comprises cooling means.
    [3" id="c-fr-0003]
    3. Device according to claim 1, comprising: e. a sealed enclosure and locking means of said enclosure on the matrix; f. means for mounting the pressure inside the sealed enclosure.
    [4" id="c-fr-0004]
    4. Device according to any one of claims 1 to 3, wherein the thermal block comprises: di. a medium comprising the receiving interface and a heating interface; dii. a thermal accumulator, heated by the induction heating means; diii. means for communicating the heat of the heat accumulator to the support by the heating interface.
    [5" id="c-fr-0005]
    5. Device according to claim 4, wherein the cooling means comprise a circuit for the circulation of a heat transfer fluid in the support.
    [6" id="c-fr-0006]
    6. Device according to claim 5, wherein the cooling means comprise a circuit for circulating a coolant around the heat accumulator.
    [7" id="c-fr-0007]
    7. Device according to claim 4, wherein the heating interface comprises a conformation sheet.
    [8" id="c-fr-0008]
    The apparatus of any one of claims 1 to 7, wherein the matrix mounting interface comprises a conformation sheet.
    [9" id="c-fr-0009]
    9. A method for baking or consolidating a textile preform pre-impregnated with a polymer, implementing a device according to any one of the preceding claims, characterized in that it comprises the steps of: i. bag the preform previously draped over the matrix; ii. vacuum the inside of the bagging: iii. transfer the matrix and the bagged preform to the heat block; iv. subjecting the preform to a thermal baking consolidation cycle by regulating the temperature of the preform by heating and cooling the thermal block.
    [10" id="c-fr-0010]
    10. The method of claim 9, implementing a device according to claim 3, comprising, between steps ii) and iv) a step of increasing the pressure in the sealed chamber.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3455044B1|2020-10-07|Device and method for moulding and consolidating a textile preform
    CA2718485C|2016-11-01|Device for converting materials using induction heating and deformable compacting means
    EP1728411A1|2006-12-06|Method of heating materials in order to produce objects and device for implementing said method
    EP3119585B1|2019-06-05|Device and process for welding thermoplastic composite material parts
    CA2945246A1|2015-10-15|Device for heating a mold
    EP0567387B1|1996-07-10|Hot pressing apparatus for the production of articles under simultaneous rise of temperature and pressure
    EP3221136B1|2019-01-02|Apparatus and method for vulcanizing tyres
    EP3151990B1|2019-02-20|Method for manufacturing a part out of a metal matrix composite material, and related device
    EP3455045B1|2021-05-05|Method and device for heating a mould
    LU100895B1|2018-12-18|APPARATUS AND METHODS FOR ENERGY STORAGE AND RECOVERY
    FR3016548A1|2015-07-24|THREE-DIMENSIONAL PRINTING DEVICE BY THE MOLTEN FILAMENT DEPOSITION METHOD OF ALL LAYERED MATERIALS
    WO2008142337A2|2008-11-27|Method and device for heating tubular or solid parts by induction heating
    EP3281769A1|2018-02-14|Moulding device for carrying out hot moulding and cold moulding methods
    EP3700695B1|2021-10-13|Process and apparatus for bulk metallic glass casting
    WO2021123456A1|2021-06-24|Method and tool for the manufacture of a quadrangular shell made of composite material
    CN213082054U|2021-04-30|Vulcanizer supports frame
    FR2882202A1|2006-08-18|Rotating electrical machine e.g. alternator, cooling device for e.g. hybrid vehicle, has conduits that allow exchanging vapor produced by heating liquid between envelope and tank, and transferring condensed liquid toward envelope by gravity
    FR3104481A1|2021-06-18|Molding tool for manufacturing a part of molding material and associated molding process
    FR2995551A1|2014-03-21|Mold for rotary molding device, has heating resistive unit that is incorporated in thickness of internal wall of each half-cavity, where temperature of internal wall is raised so as to raise internal temperature of mold
    KR101426337B1|2014-09-11|Method for drawing up pipe against component
    FR3056828A1|2018-03-30|THERMAL CONTROL DEVICE
    EP3504057A1|2019-07-03|Hot-pressing press tool, method of operating it, and corresponding installation and method of manufacture
    同族专利:
    公开号 | 公开日
    EP3455044A1|2019-03-20|
    CN109414843B|2021-05-25|
    EP3455044B1|2020-10-07|
    TWI726099B|2021-05-01|
    KR20190017778A|2019-02-20|
    TW201808593A|2018-03-16|
    KR102314958B1|2021-10-19|
    MX2018013825A|2019-08-05|
    US11007730B2|2021-05-18|
    US20190202148A1|2019-07-04|
    CN109414843A|2019-03-01|
    CA3022796A1|2017-11-16|
    JP2019514757A|2019-06-06|
    FR3051135B1|2019-05-31|
    WO2017194640A1|2017-11-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5002476A|1989-11-24|1991-03-26|Lockheed Corporation|Tooling for composite parts|
    US5410132A|1991-10-15|1995-04-25|The Boeing Company|Superplastic forming using induction heating|
    US5556565A|1995-06-07|1996-09-17|The Boeing Company|Method for composite welding using a hybrid metal webbed composite beam|
    FR3015919A1|2013-12-31|2015-07-03|Roctool|DEVICE FOR HEATING A MOLD|
    US5252160A|1990-11-15|1993-10-12|Auto Air Composites, Inc.|Method of manufacturing a metal/composite spinner cone|
    US5530227A|1991-04-05|1996-06-25|The Boeing Company|Method and apparatus for consolidating organic matrix composites using induction heating|
    DE4215231C1|1992-05-09|1993-05-13|Dornier Luftfahrt Gmbh, 8031 Wessling, De|Arrangement for mfg. fibre reinforced thermoplastic components - including unit for accommodating component, pressurising unit for assembled component and heating unit|
    US6979807B2|2003-08-13|2005-12-27|The Boeing Company|Forming apparatus and method|
    US8790485B2|2005-02-25|2014-07-29|Bell Helicopter Textron Inc.|Single vacuum debulk composite panel repair|
    US10493740B2|2005-06-22|2019-12-03|Roctool|Device and method for compacting and consolidation of a part in composite material with a thermoplastic matrix reinforced by continuous fibers, particularly fibers of natural origin|
    WO2012131112A2|2011-04-01|2012-10-04|Roctool|Device and method for compacting/consolidating a part made of a composite material having a thermoplastic matrix reinforced by continuous fibers, in particular fibers of natural origin|
    GB2447964B|2007-03-29|2012-07-18|Gurit Uk Ltd|Moulding material|
    DE102008029058A1|2008-06-18|2009-12-24|GKN Aerospace Services Limited, East Cowes|Method and mold for making fiber reinforced composite components with microwaves|
    DE202009001959U1|2009-03-11|2010-07-29|Kunststoffinstitut für die mittelständische Wirtschaft NRW GmbH|mold|
    DE102009052835A1|2009-11-13|2011-05-19|Dr. Ing. H.C. F. Porsche Aktiengesellschaft|Method for producing a component from a fiber-reinforced material|
    RU2630256C2|2012-06-19|2017-09-06|Роктул|Die mould with flash heating and cooling|
    CN102975374B|2012-09-29|2015-09-23|航天材料及工艺研究所|The manufacture method of carbon fiber composite material main beam cap for fan blade and manufacturing installation|
    US9358703B2|2013-07-09|2016-06-07|The Boeing Company|Thermoplastic sandwich structures|DE202017101759U1|2017-03-27|2018-06-28|Hotset Gmbh|Heating insert for a master mold and Urformwerkzeug|
    CN111070726A|2019-12-13|2020-04-28|中国航空制造技术研究院|Integral forming method of fiber reinforced SiC-based composite material reinforced thermal bearing structure|
    CN112277339B|2020-10-10|2021-12-28|江西洪都航空工业集团有限责任公司|Manufacturing method of small V-shaped double-curvature composite material part|
    法律状态:
    2017-05-30| PLFP| Fee payment|Year of fee payment: 2 |
    2017-11-17| PLSC| Publication of the preliminary search report|Effective date: 20171117 |
    2018-05-31| PLFP| Fee payment|Year of fee payment: 3 |
    2019-05-31| PLFP| Fee payment|Year of fee payment: 4 |
    2020-05-29| PLFP| Fee payment|Year of fee payment: 5 |
    2021-05-28| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1670220A|FR3051135B1|2016-05-10|2016-05-10|DEVICE AND METHOD FOR MOLDING AND CONSOLIDATING A TEXTILE PREFORM|
    FR1670220|2016-05-10|FR1670220A| FR3051135B1|2016-05-10|2016-05-10|DEVICE AND METHOD FOR MOLDING AND CONSOLIDATING A TEXTILE PREFORM|
    TW106115448A| TWI726099B|2016-05-10|2017-05-10|Device and method for molding and consolidating a textile preform|
    KR1020187035557A| KR102314958B1|2016-05-10|2017-05-10|Apparatus and method for molding and solidifying prefabricated articles|
    JP2018559722A| JP6990664B2|2016-05-10|2017-05-10|Methods and equipment for casting and solidifying fiber preforms|
    MX2018013825A| MX2018013825A|2016-05-10|2017-05-10|Device and method for moulding and consolidating a textile preform.|
    CA3022796A| CA3022796A1|2016-05-10|2017-05-10|Device and method for moulding and consolidating a textile preform|
    US16/098,857| US11007730B2|2016-05-10|2017-05-10|Device and method for molding and consolidating a textile preform|
    PCT/EP2017/061240| WO2017194640A1|2016-05-10|2017-05-10|Device and method for moulding and consolidating a textile preform|
    CN201780039543.6A| CN109414843B|2016-05-10|2017-05-10|Apparatus and method for molding and consolidating textile preforms|
    EP17721746.0A| EP3455044B1|2016-05-10|2017-05-10|Device and method for moulding and consolidating a textile preform|
    [返回顶部]