CN105951277A - Preparation method for curved-surface composite material preform - Google Patents
Preparation method for curved-surface composite material preform Download PDFInfo
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- CN105951277A CN105951277A CN201610504427.4A CN201610504427A CN105951277A CN 105951277 A CN105951277 A CN 105951277A CN 201610504427 A CN201610504427 A CN 201610504427A CN 105951277 A CN105951277 A CN 105951277A
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- thread
- mould
- yarn
- flat
- fabric
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D25/00—Woven fabrics not otherwise provided for
- D03D25/005—Three-dimensional woven fabrics
Abstract
The invention relates to a preparation method for a curved-surface composite material preform. The preparation method comprises the following steps: a, manufacturing a mould; b, measuring length L1 of a longest bus in the length direction of the mould and length L2 of the longest bus in the width direction of the mould; c, manufacturing planar three-dimensional fabric; d, laying the planar three-dimensional fabric on the mould; e, drawing thread ends at the two sides of weft yarns in sequence, and straightening the bus, in the width direction of the mould, of the weft yarns; f, drawing thread ends at the two ends of warp in sequence, and straightening the bus, in the length direction of the mould, of the warp; and g, if the yarn is bent, repeating the steps e and f until the yarn is completely straightened relative to the bus. The preparation method has the beneficial effects that a phenomenon of forming penetrating holes in the thickness direction of the fabric due to yarn adding and reducing of a conventional curved-surface composite material perform can be effectively solved, and the inner quality of the product is guaranteed; and the density uniformity of the fabric is improved, the forming process is simplified, and quick forming can be realized.
Description
Technical field
The present invention relates to the manufacture method of a kind of curved composite structures precast body.
Background technology
The complex manufacturing technology of existing technology mean camber composite preform, forms knitting of prepared product
Thing density uniformity is poor, and interiors of products quality cannot meet demand.
Summary of the invention
The technical problem to be solved in the present invention is: provide the manufacture method of a kind of curved composite structures precast body,
Simplify making step, it is provided that product quality.
The technical solution adopted for the present invention to solve the technical problems is: a kind of curved composite structures precast body
Manufacture method, has following steps: a, makes mould, mould and curved composite structures precast body to be produced
Interior profile match；B, on the length direction of mould, measure longest bus-bar length L1 in the direction,
The width of mould is measured longest bus-bar length L2 in the direction；C, making are by warp thread and weft yarn
The flat and stereo fabric being interwoven, with on longest bus-bar length L1 on length direction and width
Longest bus-bar length L2 is again in warp-wise two ends and broadwise two on the basis of the cloth length of flat and stereo fabric and fabric width
End reserves certain surplus respectively；D, by the flat and stereo fabric in step c according to corresponding direction as far as possible patch
Closing ground to be laid on mould, flat and stereo fabric cloth length is corresponding with the length direction of mould, fabric width and mould
Width is corresponding；E, in order from one end of the cloth length direction of flat and stereo fabric to the other end by root dilazep
Drag the end of a thread at the two ends of weft yarn, or be one group of two ends pulling weft yarn by group with several adjacent weft yarns
The end of a thread, stretches the bus of weft yarn opposing mold width, and after stretching, the end of a thread by the two ends of weft yarn is relative
Mould is fixed；F, in order one end from the fabric width direction of flat and stereo fabric pull warp to the other end by root
The end of a thread at the two ends of yarn, or with adjacent the end of a thread that several warp thread are one group of two ends pulling warp thread by group,
The bus of warp thread opposing mold length direction is stretched, after stretching, the end of a thread opposing mold at the two ends of warp thread is solid
Fixed；G, bending situation according to the yarn of flat fabric, if also having bending, then repeat step e and f,
Until the whole opposing busbars of yarn stretches, form the suitable of curved composite structures precast body, above-mentioned steps e and f
Sequence can be exchanged.
Limit further, in step c, the end of a thread at the two ends of each one thread is marked, or with
Adjacent several one threads are one group, are marked the end of a thread at the two ends often organizing yarn, in order in step e
The end of a thread with the two ends identifying yarn to be pulled in step f.
Limit further, in step e and step f, by fixture by the line at the two ends of yarn to be pulled
Head-clamp is lived, and is then stretched by the bus of yarn opposing mold by the way of pulling back and forth, by folder after stretching
The end of a thread opposing mold at the two ends of warp thread is fixed by tool.
Limiting further, the material of curved composite structures precast body is carbon fiber, quartz glass fibre, carbonization
Silica fibre, boron nitride fiber, alumina fibre, alkali-free glass fibre, high-strength glass fibre, low dielectric glass
In glass fiber, high-modulus glass fiber, basalt fibre, hdpe fiber and aramid fiber one
Plant or several.
Limiting further, the organizational structure of flat and stereo fabric is 2.5D structure, orthogonal three-dimensional structure or 2.5D
Add normal direction structure.
Limiting further, flat and stereo fabric is woven flat and stereo fabric.
The invention has the beneficial effects as follows:
1, conventional curved-surface composite preform can be prevented effectively from because adding, subtract yarn in fabric thickness direction shape
Become the phenomenon of penetrability hole, it is ensured that interiors of products quality；
2, improve the density uniformity of fabric, and use weaving equipment effectively to be controlled by reed further
The uniformity of fabric count yarn density processed；
3, moulding process is simplified, it is possible to achieve rapid shaping.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings；
Fig. 1 is that the master of one of which curved composite structures precast body to be produced in the present invention shows depending on status architecture
It is intended to；
Fig. 2 is the section of the width of one of which curved composite structures precast body to be produced in the present invention
Figure；
Fig. 3 is the section of the length direction of one of which curved composite structures precast body to be produced in the present invention
Figure；
Fig. 4 is the easy structure schematic diagram of the flat and stereo fabric of the present invention；
Fig. 5 is the structural representation of the flat and stereo fabric of the 2.5D structure of the present invention；
Wherein, 1. warp thread, 2. weft yarn, 3. the end of a thread.
Detailed description of the invention
The manufacture method of a kind of curved composite structures precast body, has following steps:
A, make mould, mould and curved composite structures precast body to be produced as shown in Figure 1,2 and 3
Interior profile match.
B, on the length direction of mould, measure longest bus-bar length L1 in the direction, at the width of mould
Degree measures longest bus-bar length L2 in the direction on direction.
C, make the flat and stereo fabric that is interwoven by warp thread 1 and weft yarn 2, with on length direction
The cloth length that longest bus-bar length L2 is flat and stereo fabric on long bus length L1 and width and fabric width
On the basis of reserve certain surplus respectively at warp-wise two ends and broadwise two ends again, this surplus is for as follow-up
Step pulls the basis of yarn.
The end of a thread 3 at the two ends of each one thread is marked by manufacturing process simultaneously, or with adjacent
Several one threads are one group, are marked the end of a thread 3 at the two ends often organizing yarn, in order in step e and step
Rapid f identifies the end of a thread 3 at the two ends of yarn to be pulled.
D, the flat and stereo fabric in step c is snugly laid on mould according to corresponding direction as far as possible,
Flat and stereo fabric cloth length is corresponding with the length direction of mould, fabric width is corresponding with the width of mould.
E, in order one end from the cloth length direction of flat and stereo fabric pull weft yarn 2 to the other end by root
The end of a thread 3 at two ends, or with adjacent the end of a thread that several weft yarns 2 are one group of two ends pulling weft yarn 2 by group
3, the bus of weft yarn 2 opposing mold width is stretched, by the end of a thread 3 phase at the two ends of weft yarn 2 after stretching
Mould is fixed.
F, in order one end from the fabric width direction of flat and stereo fabric pull warp thread 1 to the other end by root
The end of a thread 3 at two ends, or with adjacent the end of a thread that several warp thread 1 are one group of two ends pulling warp thread 1 by group
3, the bus of warp thread 1 opposing mold length direction is stretched, by the end of a thread 3 phase at the two ends of warp thread 1 after stretching
Mould is fixed.
G, bending situation according to the yarn of flat fabric, if also having bending, then repeat step e and f,
Until the whole opposing busbars of yarn stretches, form curved composite structures precast body.
The order of above-mentioned steps e and f can be exchanged.In step e and step f, will wait to draw by fixture
The end of a thread 3 at the two ends of the yarn dragged is clamped, then by the mother of yarn opposing mold by the way of pulling back and forth
Line stretches, and is fixed by the end of a thread 3 opposing mold at the two ends of warp thread 1 by fixture after stretching.
The material of curved composite structures precast body is carbon fiber, quartz glass fibre, silicon carbide fibre, nitridation
Boron fibre, alumina fibre, alkali-free glass fibre, high-strength glass fibre, dielectric glass fibre, Gao Mo
One or more in amount glass fibre, basalt fibre, hdpe fiber and aramid fiber.
The organizational structure of flat and stereo fabric is that 2.5D structure, orthogonal three-dimensional structure or 2.5D add normal direction structure.
Flat and stereo fabric is woven flat and stereo fabric.
As a example by making curved composite structures precast body as shown in Figure 1,2 and 3, the making side to the present invention
Method is further described.
Longest bus-bar length L2 on the width of this curved composite structures precast body is 1700mm, length side
Longest bus-bar length L1 upwards is 2200mm, and precast body thickness is 11mm, and precast body uses low-angle 2.5D
Structure, fiber volume fraction is 40%～43%.
The manufacture method of a kind of curved composite structures precast body, is characterized in that: have following steps:
A, making mould, mould matches with the interior profile of curved composite structures precast body to be produced.
B, to measure longest bus-bar length L1 in the direction on the length direction of mould be 2200mm,
Measuring longest bus-bar length L2 in the direction on the width of mould is 1700mm.
C, stood by the woven plane of 2.5D structure that is interwoven by warp thread 1 and weft yarn 2 of weaving equipment weaving
Body fabric, with longest bus-bar length L1 on length direction and longest bus-bar length L2 on width
Reserve 60mm's respectively at warp-wise two ends and broadwise two ends again for the cloth length of flat and stereo fabric and the basis of fabric width
Surplus, cloth length=L1+60mm × 2, fabric width=L2+60mm × 2, contain according to product thickness 11mm and fiber volume
Amount be 40%～43% requirement to calculate the number of plies of this woven flat and stereo fabric be 15 layers, columns is 1584 row.
The end of a thread 3 at the two ends of each one thread is marked by weaving process simultaneously, or with adjacent 3
Yarn is one group, is marked the end of a thread 3 at the two ends often organizing yarn, in order in step e and step f
In identify the end of a thread 3 at two ends of yarn to be pulled.
D, the flat and stereo fabric in step c is snugly laid on mould according to corresponding direction as far as possible,
Flat and stereo fabric cloth length is corresponding with the length direction of mould, fabric width is corresponding with the width of mould.Now
Part warp thread 1 and weft yarn 2 are likely to be at case of bending.
E, in order one end from the cloth length direction of flat and stereo fabric will be treated by fixture to the other end by root
The end of a thread 3 at two ends of the weft yarn 2 pulled is clamped, or is one group with adjacent 3 weft yarns 2 and leads to by group
Cross fixture to clamp, the end of a thread 3 at the two ends of weft yarn 2 to be pulled then by latitude by the way of pulling back and forth
The bus of yarn 2 opposing mold width stretches, and after stretching, the end of a thread 3 at the two ends of weft yarn 2 is passed through fixture
Opposing mold is fixed.
F, in order one end from the fabric width direction of flat and stereo fabric will be treated by fixture to the other end by root
The end of a thread 3 at two ends of the warp thread 1 pulled is clamped, or is one group with adjacent 3 warp thread 1 and leads to by group
Cross fixture to be clamped by the end of a thread 3 at the two ends of warp thread 1 to be pulled, then will be through by the way of pulling back and forth
The bus of yarn 1 opposing mold length direction stretches, and after stretching, the end of a thread 3 at the two ends of warp thread 1 is passed through fixture
Opposing mold is fixed.
G, bending situation according to the yarn of flat fabric, if also having bending, then repeat step e and f,
Until the whole opposing busbars of yarn stretches, form curved composite structures precast body.
Claims (6)
1. a manufacture method for curved composite structures precast body, is characterized in that: have following steps:
A, making mould, described mould matches with the interior profile of curved composite structures precast body to be produced；
B, on the length direction of mould, measure longest bus-bar length L1 in the direction, at the width of mould
Degree measures longest bus-bar length L2 in the direction on direction；
The flat and stereo fabric that c, making are interwoven by warp thread (1) and weft yarn (2), with length direction
On longest bus-bar length L1 and the cloth that longest bus-bar length L2 is flat and stereo fabric on width long
Certain surplus is reserved respectively at warp-wise two ends and broadwise two ends again with on the basis of fabric width；
D, the flat and stereo fabric in step c is snugly laid on mould according to corresponding direction as far as possible,
Flat and stereo fabric cloth length is corresponding with the length direction of mould, fabric width is corresponding with the width of mould；
E, pull weft yarn (2) to the other end by root from one end of the cloth length direction of flat and stereo fabric in order
The end of a thread (3) at two ends, or be one group with adjacent several weft yarns (2) and pull weft yarn (2) by group
The end of a thread (3) at two ends, the bus of weft yarn (2) opposing mold width is stretched, by weft yarn after stretching
(2) the end of a thread (3) opposing mold at two ends is fixed；
F, pull warp thread (1) to the other end by root from the one end in the fabric width direction of flat and stereo fabric in order
The end of a thread (3) at two ends, or be one group with adjacent several warp thread (1) and pull warp thread (1) by group
The end of a thread (3) at two ends, the bus of warp thread (1) opposing mold length direction is stretched, by warp thread after stretching
(1) the end of a thread (3) opposing mold at two ends is fixed；
G, bending situation according to the yarn of flat fabric, if also having bending, then repeat step e and f,
Until the whole opposing busbars of yarn stretches, form curved composite structures precast body,
The order of above-mentioned steps e and f can be exchanged.
The manufacture method of curved composite structures precast body the most according to claim 1, is characterized in that:
In step c, the end of a thread (3) at the two ends of each one thread is marked, or with adjacent several one threads
It is one group, the end of a thread (3) at the two ends often organizing yarn is marked, in order in step e and step f
Identify the end of a thread (3) at the two ends of yarn to be pulled.
The manufacture method of curved composite structures precast body the most according to claim 1, is characterized in that:
In step e and step f, by fixture, the end of a thread (3) at the two ends of yarn to be pulled is clamped, then lead to
The bus of yarn opposing mold is stretched by the mode that coming over pulls back drags, by fixture by warp thread (1) after stretching
The end of a thread (3) opposing mold at two ends is fixed.
The manufacture method of curved composite structures precast body the most according to claim 1, is characterized in that: institute
The material of the curved composite structures precast body stated is carbon fiber, quartz glass fibre, silicon carbide fibre, nitridation
Boron fibre, alumina fibre, alkali-free glass fibre, high-strength glass fibre, dielectric glass fibre, Gao Mo
One or more in amount glass fibre, basalt fibre, hdpe fiber and aramid fiber.
The manufacture method of curved composite structures precast body the most according to claim 1, is characterized in that: institute
The organizational structure of the flat and stereo fabric stated is that 2.5D structure, orthogonal three-dimensional structure or 2.5D add normal direction structure.
The manufacture method of curved composite structures precast body the most according to claim 1, is characterized in that: institute
The flat and stereo fabric stated is woven flat and stereo fabric.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106637592A (en) * | 2016-11-18 | 2017-05-10 | 王财农 | High-strength fabric |
| CN108591335A (en) * | 2018-03-25 | 2018-09-28 | 哈尔滨工程大学 | A kind of metal net buffer structure and preparation method thereof with auxetic characteristic |
| CN110004558A (en) * | 2019-04-15 | 2019-07-12 | 苏州赛力菲陶纤有限公司 | A kind of preparation method of heatproof substrate |
| CN112680861A (en) * | 2020-12-11 | 2021-04-20 | 江苏恒力化纤股份有限公司 | Police helmet made of composite material and preparation method thereof |
| CN113858650A (en) * | 2020-06-30 | 2021-12-31 | 中国航发商用航空发动机有限责任公司 | Method for manufacturing composite annular parts |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106637592A (en) * | 2016-11-18 | 2017-05-10 | 王财农 | High-strength fabric |
| CN108591335A (en) * | 2018-03-25 | 2018-09-28 | 哈尔滨工程大学 | A kind of metal net buffer structure and preparation method thereof with auxetic characteristic |
| CN110004558A (en) * | 2019-04-15 | 2019-07-12 | 苏州赛力菲陶纤有限公司 | A kind of preparation method of heatproof substrate |
| CN113858650A (en) * | 2020-06-30 | 2021-12-31 | 中国航发商用航空发动机有限责任公司 | Method for manufacturing composite annular parts |
| CN112680861A (en) * | 2020-12-11 | 2021-04-20 | 江苏恒力化纤股份有限公司 | Police helmet made of composite material and preparation method thereof |
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| CN105951277B (en) | 2018-01-09 |
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