CN111455565A - Profiling three-dimensional fabric - Google Patents

Profiling three-dimensional fabric Download PDF

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Publication number
CN111455565A
CN111455565A CN201910049989.8A CN201910049989A CN111455565A CN 111455565 A CN111455565 A CN 111455565A CN 201910049989 A CN201910049989 A CN 201910049989A CN 111455565 A CN111455565 A CN 111455565A
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Prior art keywords
profiling
fiber
layer
plane
continuous
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CN201910049989.8A
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Chinese (zh)
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缪云良
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Jiangsu Tianniao High Technology Co ltd
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Jiangsu Tianniao High Technology Co ltd
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Priority to CN201910049989.8A priority Critical patent/CN111455565A/en
Publication of CN111455565A publication Critical patent/CN111455565A/en
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    • 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
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/76—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres otherwise than in a plane, e.g. in a tubular way
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

The invention provides a profiling three-dimensional fabric which comprises an X-Y plane profiling unit layer and a Z-direction fiber bundle penetrating through the X-Y plane profiling unit layer, wherein the X-Y plane profiling unit layer comprises at least one continuous fiber profiling layer and a plurality of fiber mesh felt layers, and the X-Y plane profiling unit layers are arranged in a Z-direction laminated mode. Through the at least one continuous fiber profiling layer arranged on the X-Y plane profiling unit layer, the profiling continuity of the finally-formed profiling three-dimensional fabric plane fiber is good, and the laying mode and the angle of the continuous fiber can be designed strongly; meanwhile, the X-Y plane profiling unit layers of the adjacent layers are connected and fixed through the penetration arrangement of the Z-direction fiber bundles.

Description

Profiling three-dimensional fabric
Technical Field
The invention relates to the technical field of composite materials, in particular to a profiling three-dimensional fabric.
Background
This section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
The novel aircraft flies at the hypersonic speed for a long time in the near space, and for improving the flying speed and the performance/function of the novel aircraft, the novel aircraft is developing towards light weight and high performance, the structural appearance of the novel aircraft is changed into a pneumatic profiling special-shaped cross section from axial symmetry, and the designability of the structure and the performance of the composite material is strong, so that the development requirements of the novel aircraft are met, therefore, the bearing parts of the novel aircraft, such as bearing frames, rudders, ventral fins, side plates and other special-shaped parts, are gradually changed into full composite materials by metal materials, and the fiber prefabricated body is adopted as a reinforcement framework, but the profiles of the parts are complex, and the existing fiber prefabrication is difficult to meet the high requirements of light weight.
The existing reports about profiled-section fiber preforms disclose variable-section or profiled-section three-dimensional fabrics formed by three-dimensional weaving, the fabrics form variable sections by moving, increasing, decreasing, segmenting and the like of weaving yarns or are formed by interweaving in the length direction of profiled sections, once the fabrics are subjected to post-processing treatment, short fibers are formed, the content of profiled-section continuous fibers is reduced, and the profiling reinforcement of the continuous fibers is difficult to meet; the existing 2.5D process can not integrally form hollow bearing frame fabric containing wing profiles; in addition, the common three-dimensional fabric with the Z-direction continuous fibers penetrating through and connected with the plane woven fabric layer adopts the 0-degree and 90-degree fiber interwoven plane woven fabric profiling layer, the 0-degree and 90-degree fibers are broken at the splicing part of the special-shaped cross section or the edge of the outline, the content of the continuous fibers in the plane is low, and the high requirement on the mechanical performance of the bearing part in the high-temperature environment cannot be met.
Disclosure of Invention
In view of the above, there is a need to provide a profiled three-dimensional fabric that can meet the profiling reinforcement of continuous fibers.
The technical scheme provided by the invention is as follows:
a copying three-dimensional fabric comprises an X-Y plane copying unit layer and a Z-direction fiber bundle penetrating through the X-Y plane copying unit layer, wherein the X-Y plane copying unit layer comprises at least one continuous fiber copying layer and a plurality of fiber mesh felt layers, and the X-Y plane copying unit layers are arranged in a Z-direction laminated mode.
Preferably, the continuous fiber profiling layer of the profiling three-dimensional fabric is formed by surrounding the outline and the interior of the profiling three-dimensional fabric with continuous fibers on the same plane, the continuous fibers in each continuous fiber profiling layer are arranged in the circumferential direction or in the direction center, the continuous fibers are arranged in the circumferential direction and/or in the side-by-side arrangement with the outline of the profiling three-dimensional fabric, and the direction center is arranged in the direction of the continuous fibers between the outlines of the profiling three-dimensional fabric towards the center of the profiling three-dimensional fabric.
Preferably, the continuous fibers in each of the continuous fiber conformal layers are uniformly distributed.
Preferably, the profiling three-dimensional fabric plane comprises a frame body and a side wing extending outwards from the frame body, and the circumferentially arranged dominant continuous fibers extend from the frame body to the end part of the side wing.
Preferably, the width of flank is greater than the width of framework, and circumference sets up continuous fibers conformal layer still includes thickening portion flank middle zone, thickening portion sets up between the dominant continuous fibers of circumference setting and extends to flank tip side by side rather than extending to flank tip side by side between the dominant continuous fibers of thickening portion flank middle zone for circumference setting and extend to flank tip side by side rather than between the dominant continuous fibers, or the dominant continuous fibers of circumference setting close one by one from inside to outside at flank tip to with thickening portion flank middle zone surround inside and profile modeling setting side by side.
Preferably, the thickened side wing middle region is arranged centrally in the wing width direction.
Preferably, the X-Y plane profiling unit interlamination includes interlamination short fiber introduced from the fiber net felt, and the plane profiling unit interlamination includes interlamination short fiber introduced from the fiber net felt.
Preferably, the Z-direction fiber bundles are arrayed and vertically arranged on the X-Y plane profiling unit layer; and the distance between the adjacent Z-direction fiber bundles on the X-Y plane profiling unit layer is 2.0-4.0 mm; the continuous fiber profiling layer and the Z-direction fiber bundle account for 80-95% of the whole mass.
Preferably, the interlayer density of the X-Y plane profiling unit layer is 10-30 layers/cm; the volume density of the profiling three-dimensional fabric is 0.70-1.00g/cm3。
Preferably, the fibers in the contoured solid fabric include at least one of carbon fibers, graphite fibers, or silicon carbide fibers.
Compared with the prior art, the profiling three-dimensional fabric provided by the invention comprises an X-Y plane profiling unit layer and a Z-direction fiber bundle penetrating through the X-Y plane profiling unit layer, wherein the X-Y plane profiling unit layer comprises at least one continuous fiber profiling layer and a plurality of fiber mesh felt layers, and the plurality of X-Y plane profiling unit layers are arranged in a Z-direction laminated manner. The continuous fiber profiling layer is arranged on the X-Y plane profiling unit layer, so that the profiling continuity of the plane fiber of the finally-formed profiling three-dimensional fabric is good, the structure of the profiling three-dimensional fabric formed by continuous fiber profiling can be enhanced, and the laying mode and the angle of the continuous fiber can be designed strongly; meanwhile, the X-Y plane profiling unit layers of the adjacent layers are connected and fixed through the penetration arrangement of the Z-direction fiber bundles.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of a profile woven fabric according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of the X-Y plane profiling cell layer stacking shown in FIG. 1.
FIG. 3 is a schematic diagram of the structure of the X-Y plane profiling unit layer in FIG. 2 in one embodiment.
FIG. 4 is a schematic structural view of a contoured circumferentially disposed continuous fiber contoured layer in accordance with one embodiment of the present invention.
FIG. 5 is a schematic structural view of a contoured circumferentially disposed continuous fiber contoured layer in another embodiment of the present invention.
FIG. 6 is a schematic structural view of a profiled circumferentially disposed continuous fiber profile layer in yet another embodiment of the present invention.
FIG. 7 is a schematic representation of the structure of a centrally located, continuous fiber shaping layer in accordance with one embodiment of the present invention.
Description of reference numerals:
profiling three-dimensional fabric 1
X-Y plane profiling unit layer 11
Z-direction fiber bundle 12
Continuous fiber conformal layer 13
Framework region 131
Middle zone of flank 133
Fiber web felt layer 14
Interlaminar short fiber 141
Frame body 3
Side wing 4
The following detailed description further illustrates embodiments of the invention in conjunction with the above-described figures.
Detailed Description
So that the manner in which the above recited objects, features and advantages of embodiments of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. In addition, the features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth to provide a thorough understanding of embodiments of the invention, and the described embodiments are merely a subset of embodiments of the invention, rather than a complete embodiment. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the embodiments of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which embodiments of the present invention belong. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention.
Referring to fig. 1 and 2, the profiling three-dimensional fabric 1 includes a plurality of X-Y plane profiling unit layers 11 and Z-direction fiber bundles 12 passing through the X-Y plane profiling unit layers 11, wherein the X-Y plane profiling unit layers 11 include at least one continuous fiber profiling layer 13 and a plurality of fiber web site layers 14, and the plurality of X-Y plane profiling unit layers 11 are stacked in the Z direction to form the profiling three-dimensional fabric 1. Through the at least one continuous fiber profiling layer 13 arranged on the X-Y plane profiling unit layer 11, the finally formed profiling three-dimensional fabric 1 has good profiling continuity of plane fibers, and the laying mode and the angle of the continuous fibers can be designed strongly; meanwhile, the X-Y plane profiling unit layers 11 of the adjacent layers are connected and fixed with each other through the penetration arrangement of the Z-direction fiber bundles 12.
In some embodiments, referring to fig. 1, the three-dimensional fabric 1 includes a frame 3 and a side wing 4 extending outward from the frame 3, wherein the side wing 4 may be disposed on either side of the frame 3 or on both sides of the opposite side; and in some embodiments, the fibers forming the contoured solid fabric 1 comprise at least one of carbon fibers, graphite fibers, or silicon carbide fibers.
The X-Y plane profiling unit layer 11 is used as a support of an X-Y plane through at least one continuous fiber profiling layer 13, please refer to fig. 4, fig. 5, fig. 6 and fig. 7, and continuous fibers on the same plane in the profiling solid fabric 1 are formed around the contour and the inner part of the profiling solid fabric 1; in some embodiments, the continuous conformable fiber layer is comprised of continuous fibers disposed around the frame 3 and the flaps 4 outside the frame 3; in other embodiments, the continuous fibers predominantly in each of the continuous fiber shaping layers 13 are disposed circumferentially or directed toward the center, wherein the continuous fibers predominantly in the circumferentially disposed continuous fiber shaping layers 13 extend from the frame 3 to the end of the wing 4; the pointing center is arranged such that the continuous fibers are arranged toward the center of the copying solid fabric 1 between the contours of the copying solid fabric 1.
In some embodiments, referring to fig. 4, 5 and 6, the continuous fibers in each continuous fiber shaping layer 13 are uniformly distributed, wherein the continuous fibers in the continuous fiber shaping layer 13 are circumferentially arranged to coincide with and/or be side by side with the contour of the three-dimensional shaped fabric 1. In some embodiments, the frame region 131 of the continuous fiber profiling unit layer 13 surrounds the frame 3, and the frame region 131 is a main body of the continuous profiling unit layer 13 and is used for supporting and surrounding the frame 3.
Referring to fig. 4 and 5, in some embodiments, the circumferentially-disposed continuous fiber shaping layer 13 further includes a wing intermediate region 133 located on the wing 4, the wing intermediate region 133 being disposed inside the frame region 131 and extending alongside the continuous fibers of the frame region 131 to the end of the wing 4. Referring to fig. 6, in other embodiments, the wing middle regions 133 are disposed between the circumferentially disposed continuous fibers, wherein the circumferentially disposed continuous fibers are closed one by one from outside to inside or from inside to outside at the end portions of the wings 4, and surround the wing middle regions 133 therein and are disposed side by side in a profiling manner. In some embodiments, the flap intermediate region 133 is centered in the width direction of the flap 4 in order to facilitate the combination of the flap intermediate region 133 and the frame region 131 to form the continuous fiber conformal layer 13.
In the laminating process, it is necessary to ensure the mutual fixation of the layers inside the X-Y plane profiling unit layer 11, and in some embodiments, referring to fig. 3, the layers inside the X-Y plane profiling unit layer 11 include interlayer short fibers 141 introduced from the fiber mesh felt layer 14, and the interlayer short fibers 141 pass through the continuous fiber profiling layer 13 from the fiber mesh felt layer 14, so as to ensure the mutual fixation between the fiber mesh felt layer 14 and the continuous fiber profiling layer 13, and avoid the mutual displacement between the layers inside the X-Y plane profiling unit layer 11 during the laminating process.
The X-Y plane profiling unit defines the position of the Z-direction fiber bundles 12 in the X-Y horizontal direction by their penetration, and in some embodiments, the Z-direction fiber bundles 12 are arranged perpendicular to the X-Y plane profiling unit layer 11, the Z-direction fiber bundles 12 are arranged in an array, and the spacing between adjacent Z-direction fiber bundles 12 on the X-Y plane profiling unit layer 11 is 2.0-4.0 mm.
The contoured solid fabric 1 is supported by the continuous fiber contour layer 13 and the Z-direction fiber bundles 12 as a support structure, and thus, in some embodiments, the continuous fibers in the continuous fiber contour layer 13 and the continuous fibers of the Z-direction fiber bundles 12 with a pitch of 2.0-4.0mm may comprise 80-95% of the entire mass of the contoured solid fabric 1. The stability of the structure in the three-dimensional copying fabric 1 is ensured by the design of the quality of the continuous fiber copying layer 13 and the quality of the Z-direction fiber bundle 12.
To further ensure the structural stability of the profiled solid fabric 1, in some embodiments, the interlayer density of the X-Y plane profiled unit layers 11 is 10-30 layers/cm; the volume density of the profiling solid fabric 1 is 0.70-1.00g/cm3。
In order to better illustrate the profiled solid fabric 1 provided by the invention, some examples of the invention are given below:
the first embodiment is as follows:
referring to fig. 1 and 2, a profiling three-dimensional fabric 1 includes a frame 3 located at a middle position and side flaps 4 located at two sides of the frame 3 in a length direction, in this embodiment, the side flaps 4 are disposed at two opposite side edges of the frame 3, and the side flaps 4 are symmetrically disposed at two sides. The frame body 3 and the side wings 4 are formed by laminating 225 layers of X-Y plane copying unit layers 11, and Z-direction fiber bundles 12 penetrating through the X-Y plane copying unit layers 11 are respectively arranged on the frame body 3 and the side wings 4.
In this embodiment, the X-Y plane profiling unit layer 11 is composed of two continuous fiber profiling layers 13 and three fiber net felt layers 14, and the two continuous fiber profiling layers 13 are respectively provided with continuous fibers arranged circumferentially and continuous fibers arranged toward the center. In this embodiment, the thickness of the side wings 4 is greater than that of the frame 3, please refer to fig. 4, the circumferentially arranged dominant continuous fibers include a frame region 131 and a side wing middle region 133 surrounding the periphery of the frame 3, the side wing middle region 133 is arranged between the continuous fibers on the frame region 131 and extends to the end of the side wing 4 side by side with the continuous fibers, and the circumferentially arranged continuous fibers include a portion overlapping the outer contours of the frame 3 and the side wing 4 and a portion arranged on the side wing 4 side by side; in this embodiment, please refer to fig. 7, the continuous fibers pointing to the center are disposed between the contours of the frame 3 toward the center of the frame 3.
In this embodiment, the interlayer density of the X-Y plane profiling unit layer 11 is 15.0 layers/cm; the upper and lower fiber net felt layers 14 of the X-Y plane profiling unit layer 11 have the surface density of 20g/m2The fiber mat layer 14 located at the middle position is a carbon fiber mat having an area density of 20g/m2The belt-shaped net felt is paved to form the net. Thus, the X-Y plane profiling unit layer 11 formed by the two continuous fiber profiling layers 13 and the three fiber mat layers 14 has an areal density of 380g/m2。
In this embodiment, in order to fix the X-Y plane profiling unit layers 11, please refer to fig. 3, a plurality of interlayer continuous fibers 141 penetrate through the continuous fiber profiling layer 13; the interlaminar continuous fibers 141 are formed by needling the fiber web felt layer 14, wherein the needling density of the two fiber web felt layers 14 positioned at the outer side is 4-5 needles/cm2And the fiber net felt layer 14 formed of the belt-like net felt has a needling density of 3 to 4 needles/cm2。
In this embodiment, please refer to fig. 2, the Z-direction fiber bundles 12 are perpendicular to the plane formed by the X-Y plane profiling unit layer 11, and the distance between two adjacent Z-direction fiber bundles 12 is 2.1 mm; in this embodiment, the Z-direction fiber bundle 12 is a 6K single-strand fiber bundle.
The frame body 3 and the side flaps 4 of the three-dimensional fabric 1 formed in this example are equal in height and have a bulk density of 0.75g/cm3(ii) a The outline dimension of the finally formed profiling three-dimensional fabric 1 is 1500mm in length, 580mm in width and 150mm in height; wherein the side flap 4 has a length of 380mm and a width of 200 mm.
Example two:
the contoured solid fabric 1 of this embodiment is substantially the same as that of embodiment 1, except that: in this embodiment, the frame body 3 and the side flaps 4 are formed by laminating 375X-Y plane copying unit layers 11, wherein the X-Y plane copying unit layers 11 are formed by one continuous fiber copying layer 13 and two fiber mat layers 14.
In this embodiment, please refer to fig. 5, the continuous fiber shaping layer 13 is circumferentially disposed, the circumferentially disposed dominant continuous fiber is a frame region 131 disposed at the periphery of the frame 3, the frame region 131 is closed one by one from inside to outside at the end of the side wing 4, the continuous fiber further includes a side wing middle region 133 disposed on the side wing 4, and the frame region 131 surrounds the side wing middle region 133 inside and is shaped side by side. In the present embodiment, the continuous fiber conformal layer 13 is formed by laying 12K carbon fibers in a single strand according to the structure shown in fig. 5 by a fiber laying device.
In this embodiment, the interlayer density of the X-Y plane profiling unit layer 11 is 25 layers/cm, and the surface density of the two fiber net felt layers 14 is 15g/m2The carbon fiber net felt and the surface density of the carbon fiber net felt are 25g/m2Is formed by laying the belt-shaped felt layer. The surface density of the X-Y plane profiling unit layer 11 formed by the one continuous fiber profiling layer 13 and the two fiber net felt layers 14 is 280g/m2。
In this embodiment, in order to fix the X-Y plane profiling unit layers 11, please refer to fig. 2, a plurality of interlayer continuous fibers 141 penetrate through the continuous fiber profiling layer 13; in this embodiment, the interlaminar continuous fibers 141 are formed by needling the fibrous web batt layer 14, where the needling density is from 2 to 3 needles/cm2。
In the embodiment, the fixing between each layer of the X-Y plane profiling unit layer 11 is realized through the Z-direction fiber bundles 12, wherein the Z-direction fiber bundles 12 are perpendicular to the plane formed by the X-Y plane profiling unit layer 11, the distance between two adjacent Z-direction fiber bundles 12 is 2.4mm, and the Z-direction fiber bundles 12 are three 3K fiber bundles.
In this example, the frame 3 and the side flaps 4 of the three-dimensional fabric 1 finally formed were set to be equal in height and the bulk density thereof was 0.97g/cm3And the outline dimension of the finally formed profiling solid fabric 1 is as follows: the length is 1500mm, the width is 580mm, and the height is 150 mm; wherein the side flap 4 has a length of 380mm and a width of 200 mm.
Example three:
the three-dimensional fabric 1 of the present embodiment is basically the same as those of embodiments 1 and 2, except that in the present embodiment, the frame 3 and the side flaps 4 are formed by 192 layers of X-Y plane copying unit layers 11; wherein, the X-Y plane profiling unit layer 11 comprises two continuous fiber profiling layers 13 and three fiber net felt layers 14.
The two continuous fiber profiling layers 13 are respectively continuous fibers which are arranged circumferentially and arranged pointing to the center, and in the embodiment, the continuous fibers which are arranged pointing to the center are the same as those in the embodiment 1; referring to fig. 6, in the present embodiment, the continuous fibers arranged in the circumferential direction include a frame region 131 and a wing middle region 133, the frame region 131 is located on the wing 4 and is closed from inside to outside, and the frame region 131 is located on the periphery of the wing middle region. In this example, the circumferentially disposed continuous fibers were formed by 204tex of silicon carbide fiber laid in two plies by a fiber placement device.
In this embodiment, the fibrous mat layers 14 on the bottom and top layers are each 20g/m in areal density2The fiber net felt between the bottom layer and the top layer 14 is 20g/m of surface density2The belt-shaped net felt is formed by paving; in this embodiment, the interlayer density between the X-Y plane-shaped unit layers 11 is 16 layers/cm, and the surface density of the X-Y plane-shaped unit layers 11 formed by the two continuous fiber-shaped layers 13 and the three fiber mat layers 14 is 386g/m2。
In this embodiment, referring to fig. 3, a plurality of needle punched fibers are disposed on the continuous fiber profiling layer 13Interlaminar continuous fibers 141 formed from the web batt layer 14; wherein the needling density of the top and bottom fibrous web felt layers 14 is 6-7 needles/cm2And the needling density of the fiber net felt layer 14 formed by the belt-shaped net felt is 4-5 needles/cm2。
In this embodiment, the Z-direction fiber bundles 12 are single-strand fiber bundles of 12K, and the distance between two adjacent Z-direction fiber bundles 12 is 4.0 mm.
In this embodiment, the frame body 3 and the side flaps 4 of the three-dimensional fabric 1 to be finally formed are arranged at the same height, and the volume density of the three-dimensional fabric 1 is 0.72g/cm3The final contoured three-dimensional fabric 1 is formed with the following overall dimensions: 1400mm in length, 510mm in width and 120mm in height, wherein the side flaps 4 are 420mm in length and 140mm in width.
In conclusion, the X-Y plane profiling unit layer 11 is formed by the continuous fiber profiling layer 13 and the fiber net felt layer 14, the X-Y plane profiling unit layer 11 is arranged in a laminated mode, and the Z-direction fiber bundle 12 penetrates through the X-Y plane profiling unit layer 11 to form the finally formed profiling three-dimensional fabric 1; the X-Y plane profiling unit layers 11 of the profiling three-dimensional fabric 1 formed in the invention are uniform in layer, and the content of the Z-direction fiber bundles 12 is uniform, so that the overall structure of the finally formed overall profiling three-dimensional fabric 1 can be more stable; in addition, in the invention, the continuous fiber profiling layer 13 and the fiber net felt layer 14 are fixed by needling the interlayer continuous fibers 141 formed by the fiber net felt layer 14, and in the manufacturing process, needling operation is simple, so that the continuous fiber profiling layer 13 and the fiber net felt layer 14 are conveniently fixed.
Although the embodiments of the present invention have been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the embodiments of the present invention.

Claims (10)

1. A profile modeling three-dimensional fabric is characterized in that: the fiber bundle forming device comprises an X-Y plane profiling unit layer and a Z-direction fiber bundle penetrating through the X-Y plane profiling unit layer, wherein the X-Y plane profiling unit layer comprises at least one continuous fiber profiling layer and a plurality of fiber mesh felt layers, and the plurality of X-Y plane profiling unit layers are arranged in a Z-direction laminated mode.
2. The contoured solid fabric of claim 1, wherein: the continuous fiber profiling layer of the profiling three-dimensional fabric is formed by surrounding the outline and the interior of the profiling three-dimensional fabric with continuous fibers on the same plane, each continuous fiber profiling layer is provided with dominant continuous fibers in a circumferential direction or a direction center, the continuous fibers and the profiling three-dimensional fabric are overlapped and/or arranged side by side in the circumferential direction, and the direction center is set to be the direction of the continuous fibers between the profiles of the profiling three-dimensional fabric towards the center of the profiling three-dimensional fabric.
3. The contoured solid fabric of claim 2, wherein: and the continuous fibers which are dominant in each continuous fiber profiling layer are uniformly distributed.
4. The contoured solid fabric of claim 2, wherein: the profile modeling three-dimensional fabric plane comprises a frame body and a side wing, wherein the frame body extends outwards to form the side wing, and the circumferentially arranged dominant continuous fibers extend to the end part of the side wing from the frame body.
5. The contoured solid fabric of claim 4, wherein: the continuous fiber profiling layer arranged in the circumferential direction further comprises a flank middle region, wherein the flank middle region is circumferentially arranged, the dominant continuous fibers are arranged between the dominant continuous fibers and extend to the end portions of the flanks side by side, or the dominant continuous fibers arranged in the circumferential direction are closed one by one from inside to outside at the end portions of the flanks, and the flank middle region is surrounded inside the flank middle region and is arranged in a profiling mode side by side.
6. The contoured solid fabric of claim 5, wherein: the wing middle region is centrally disposed in the wing width direction.
7. The contoured solid fabric of claim 1, wherein: the X-Y plane profiling unit interlamination layer comprises interlamination short fibers introduced from the fiber net felt.
8. The contoured solid fabric of claim 1, wherein: the Z-direction fiber bundle array is vertically arranged on the X-Y plane profiling unit layer; and the distance between the adjacent Z-direction fiber bundles on the X-Y plane profiling unit layer is 2.0-4.0 mm; the continuous fiber profiling layer and the Z-direction fiber bundle account for 80-95% of the whole mass.
9. The contoured solid fabric of claim 1, wherein: the interlayer density of the X-Y plane profiling unit layer is 10-30 layers/cm; the volume density of the profiling three-dimensional fabric is 0.70-1.00g/cm3。
10. The contoured solid fabric of claim 1, wherein: the fiber in the profiling solid fabric comprises at least one of carbon fiber, graphite fiber or silicon carbide fiber.
CN201910049989.8A 2019-01-18 2019-01-18 Profiling three-dimensional fabric Pending CN111455565A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112779645A (en) * 2020-12-28 2021-05-11 南京玻璃纤维研究设计院有限公司 Multilayer combined structure three-dimensional fabric and preparation method thereof
CN112779646A (en) * 2020-12-31 2021-05-11 南京玻璃纤维研究设计院有限公司 Tubular three-dimensional fabric and rapid forming preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112779645A (en) * 2020-12-28 2021-05-11 南京玻璃纤维研究设计院有限公司 Multilayer combined structure three-dimensional fabric and preparation method thereof
CN112779646A (en) * 2020-12-31 2021-05-11 南京玻璃纤维研究设计院有限公司 Tubular three-dimensional fabric and rapid forming preparation method thereof

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