CN102140731B - Weaving method of reinforced fabric with groove-shaped abnormal cross section and weaving convex die thereby - Google Patents
Weaving method of reinforced fabric with groove-shaped abnormal cross section and weaving convex die thereby Download PDFInfo
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- CN102140731B CN102140731B CN 201110060927 CN201110060927A CN102140731B CN 102140731 B CN102140731 B CN 102140731B CN 201110060927 CN201110060927 CN 201110060927 CN 201110060927 A CN201110060927 A CN 201110060927A CN 102140731 B CN102140731 B CN 102140731B
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Abstract
The invention relates to a weaving method of reinforced fabric with a groove-shaped abnormal cross section and a weaving convex die thereby, wherein the groove-shaped reinforced fabric can be woven and formed in an integral weaving method. The weaving method of the reinforced fabric with the groove-shaped abnormal cross section comprises the following steps of: (a) combining a fabric core die and a complementary die into a weaving convex die, and weaving a reinforced fabric outside the weaving convex die, wherein the fabric core die has a groove-shaped abnormal cross section, the inner profile perimeter on any cross section of the woven reinforced fabric is equal to the outer profile perimeter of the fabric core die on the cross section; and (b) after weaving the reinforced fabric, removing the complementary die from the weaving convex die, applying an external force directing the inner part of the fabric core die to the reinforced fabric to completely attach the reinforced fabric to the outer surface of the fabric core die, thereby accomplishing the formation of the composite reinforced fabric with the groove-shaped abnormal cross section. By using the complementary die, the method simplifies the forming and manufacturing process, so that fibers in the reinforced fabric are uniformly distributed, and therefore the reinforced fabric has favorable forming effect.
Description
Technical field
The present invention relates to a kind of braiding manufacturing approach of groove shape odd-shaped cross section composite reinforced fiber and the braiding formpiston of employing.
Background technology
Reinforced fiber is the key component of high-performance composite materials, in composite, plays a part to gain in strength, improve performance, has determined performance of composites to a great extent.
Current, profile is that the composite reinforced fiber of standard revolving body (cylinder, circular cone, round platform etc.) adopts the integral weaving method manufacturing mostly.Adopt the reinforced fiber good integrity of integral weaving manufactured, Fiber Distribution is even, and is excellent with the composite materials property and the electrical property of its making, is used widely at aerospace field.
Along with the continuous development of science and technology, the profile of composite becomes increasingly complex, and wherein, the composite that has the groove tee section uses more and morely, and this reinforced fiber that just need produce same groove tee section is carried out compound.
But because the surface of fabric core has groove; When adopting integral weaving method braiding reinforced fiber; The braiding yarn receives in the braiding process than hightension control, and fabric can't be attached at fabric core groove surfaces fully, can't realize the moulding of the groove shape complex profile of reinforced fiber.
Summary of the invention
The present invention provides a kind of braid method of groove shape odd-shaped cross section reinforced fiber, can adopt integral weaving method weaving forming.
The braiding formpiston that the present invention also provides above-mentioned preparation method to adopt.
The braid method of said groove shape odd-shaped cross section reinforced fiber may further comprise the steps:
(a) fabric core and compensating mold are combined into the braiding formpiston; In the outside of braiding formpiston braiding reinforced fiber; The fluted shape odd-shaped cross section of said fabric core mould, the reinforced fiber that is woven equals the outer mold surface girth of fabric core on this cross section on this cross section at the interior profile girth on arbitrary cross section;
(b) after the reinforced fiber braiding is accomplished; Compensating mold is withdrawn from the braiding formpiston; Reinforced fiber is applied the external force of pointing to fabric core inside, make reinforced fiber be attached at the outer surface of fabric core fully, accomplish the moulding of groove shape odd-shaped cross section composite reinforced fiber.
Compensating mold can adopt various forms, as long as the reinforced fiber that is woven equals the outer mold surface girth of fabric core on this cross section on this cross section at the interior profile girth on arbitrary cross section.
As preferred version, the contacted outer mold surface shape of compensating mold and fabric core matches, and compensating mold and fabric core are fit together, and being combined into outer mold surface is the braiding formpiston of plane and/or convex surface; And after compensating mold and fabric core die combination, the girth of braiding formpiston outer mold surface equals the outer mold surface girth of fabric core on arbitrary cross section.
Reinforcement fabrics profiled groove shape can
shape,
shape,
-shaped or formed by changing the shape of one or several grooves.
The employed raw material of reinforced fiber are prior art, like one or more of quartz fibre, carbon fiber, silicon carbide fibre, boron nitride fiber, alkali-free glass fibre, high-strength glass fibre, dielectric glass fibre, high-modulus glass fiber, basalt fibre, hdpe fiber, aramid fiber.
The braided structure of reinforced fiber adopts prior art, like two dimension through volumes, two-dimentional weft knitting, shallow friendship direct connection, the curved couplet of shallow friendship, three-dimensional four-way, three-dimensional five to one or more of, 3 D multi-directional, quadrature three-dimensional.
The thickness of reinforced fiber is prior art, is generally 0.5mm～40mm, and the fiber volume fraction of reinforced fiber in composite is generally 30%～55%.
The braiding formpiston that said braid method adopts.
Advantage of the present invention is to use compensating mold; The groove that remedies the fabric core has been simplified forming manufacture technique to the disadvantage that moulding process brings, and the internal fiber of reinforced fiber is evenly distributed; The molding effect of reinforced fiber is good, has improved the mechanical property and the electrical property of composite.
Description of drawings
Fig. 1 weaves the process sketch map for the present invention;
Fig. 2 is a die assembly sketch map of the present invention;
Fig. 3 is a compensating mold schematic cross-section of the present invention;
Fig. 4 is a groove shape odd-shaped cross section reinforced fiber sketch map of the present invention;
Among the figure, reinforced fiber in the 1-braiding process, 2-fabric core, 3-compensating mold, 4-groove.
The specific embodiment
Below in conjunction with specific embodiment the present invention is done further to set forth in detail.
Develop groove shape odd-shaped cross section quartz fibre reinforced fiber as shown in Figure 4, fabric thickness is 20mm, and concrete steps are following:
(1) with reference to Fig. 1,2,3, make wooden compensating mold 3, compensating mold 3 will match with the outer mold surface that contacts of fabric core 2, and the arc length c of compensating mold 3 on arbitrary cross section equals two line segment a and arc length b sum;
(2) with reference to Fig. 1,2, fabric core 2 and compensating mold 3 are combined into the braiding formpiston, at the outer mold surface of the braiding formpiston quartz fibre of arranging, adopt integral weaving method braiding quartz fibre reinforced fiber 1;
(3) with reference to Fig. 4; After reinforced fiber 1 braiding is accomplished, compensating mold 3 is withdrawn from the braiding formpiston, apply at groove 4 places of reinforced fiber 1 and point to the inner external force of fabric core; Make reinforced fiber 1 be attached at the outer surface of fabric core 2 fully, accomplish the moulding of groove shape odd-shaped cross section reinforced fiber.
Quartz fibre reinforced fiber after the detection moulding: the groove fabric thickness is 19mm, and other positions are 20mm, and difference is less than 1mm; The groove fiber volume fraction is 45%, and other positions are 43%, and difference is not more than 2%; The slit thickness of groove fabric and fabric mandrel surface is 2mm, less than 3mm; Show and adopt the quartz fibre reinforced fabric fiber of this method development to be evenly distributed, molding effect is good.
Claims (4)
1. the braid method of a groove shape odd-shaped cross section reinforced fiber is characterized in that may further comprise the steps:
(a) fabric core and compensating mold are combined into the braiding formpiston; In the outside of braiding formpiston braiding reinforced fiber; The fluted shape odd-shaped cross section of said fabric core mould, the reinforced fiber that is woven equals the outer mold surface girth of fabric core on this cross section on this cross section at the interior profile girth on arbitrary cross section;
(b) after the reinforced fiber braiding is accomplished; Compensating mold is withdrawn from the braiding formpiston; Groove in reinforced fiber applies the external force of pointing to fabric core inside, makes reinforced fiber be attached at the outer surface of fabric core fully, accomplishes the moulding of groove shape odd-shaped cross section composite reinforced fiber.
2. the braid method of groove shape odd-shaped cross section reinforced fiber as claimed in claim 1; It is characterized in that; The contacted outer mold surface shape of compensating mold and fabric core matches, and compensating mold and fabric core are fit together, and being combined into outer mold surface is the braiding formpiston of plane and/or convex surface; And after compensating mold and fabric core die combination, the girth of braiding formpiston outer mold surface equals the outer mold surface girth of fabric core on arbitrary cross section.
3. according to claim 1 or claim 2 the braid method of groove shape odd-shaped cross section reinforced fiber is characterized in that the thickness of reinforced fiber is 0.5～40mm.
4. the braiding formpiston that each said braid method adopts among the claim 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110060927 CN102140731B (en) | 2011-03-15 | 2011-03-15 | Weaving method of reinforced fabric with groove-shaped abnormal cross section and weaving convex die thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110060927 CN102140731B (en) | 2011-03-15 | 2011-03-15 | Weaving method of reinforced fabric with groove-shaped abnormal cross section and weaving convex die thereby |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102140731A CN102140731A (en) | 2011-08-03 |
| CN102140731B true CN102140731B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110060927 Active CN102140731B (en) | 2011-03-15 | 2011-03-15 | Weaving method of reinforced fabric with groove-shaped abnormal cross section and weaving convex die thereby |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088546B (en) * | 2012-12-29 | 2014-07-02 | 中材科技股份有限公司 | New-structure three-dimensional fabric and its knitting method |
| CN109652918B (en) * | 2018-11-30 | 2020-06-05 | 湖北三江航天江北机械工程有限公司 | Special-shaped curved surface quasi-three-dimensional fabric and weaving process method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1457973A (en) * | 2003-05-30 | 2003-11-26 | 北京东方慧辰碳纤维科技有限公司 | Fiber reinforced drawn and extruded pipe with woven structure and its preparing method |
| CN1614114A (en) * | 2004-11-30 | 2005-05-11 | 中材科技股份有限公司 | Method for knitting 3D multi-directional braided fabric in size reduced profile of composite material |
| CN1932101A (en) * | 2006-10-09 | 2007-03-21 | 天津工业大学 | Weaving process in two-dimensional conic-casing loom |
| CN101085551A (en) * | 2007-07-11 | 2007-12-12 | 郝跟进 | Preparation method for on-line pulling and extruding glass steel tube with multilayer annular weaving structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001018300A (en) * | 1999-07-05 | 2001-01-23 | Unitta Co Ltd | Production of helical-toothed timing belt |
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2011
- 2011-03-15 CN CN 201110060927 patent/CN102140731B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1457973A (en) * | 2003-05-30 | 2003-11-26 | 北京东方慧辰碳纤维科技有限公司 | Fiber reinforced drawn and extruded pipe with woven structure and its preparing method |
| CN1614114A (en) * | 2004-11-30 | 2005-05-11 | 中材科技股份有限公司 | Method for knitting 3D multi-directional braided fabric in size reduced profile of composite material |
| CN1932101A (en) * | 2006-10-09 | 2007-03-21 | 天津工业大学 | Weaving process in two-dimensional conic-casing loom |
| CN101085551A (en) * | 2007-07-11 | 2007-12-12 | 郝跟进 | Preparation method for on-line pulling and extruding glass steel tube with multilayer annular weaving structure |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-18300A 2001.01.23 |
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| CN102140731A (en) | 2011-08-03 |
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Effective date of registration: 20220104 Address after: 210012, No. 30, Xi An Road, Yuhua West Road, Jiangsu, Nanjing Patentee after: NANJING FIBERGLASS RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address before: 210012, No. 30, Xi An Road, Yuhua West Road, Jiangsu, Nanjing Patentee before: SINOMA SCIENCE & TECHNOLOGY Co.,Ltd. |
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