CN107553933A - A kind of antarafacial π types carbon fibre composite joint forming method - Google Patents
A kind of antarafacial π types carbon fibre composite joint forming method Download PDFInfo
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- CN107553933A CN107553933A CN201710543089.XA CN201710543089A CN107553933A CN 107553933 A CN107553933 A CN 107553933A CN 201710543089 A CN201710543089 A CN 201710543089A CN 107553933 A CN107553933 A CN 107553933A
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Abstract
The present invention provides a kind of forming method of antarafacial π types carbon fibre composite joint, and paving, two L-types, a U-shaped and convex are carried out respectively on 4 pellets according to Lay up design；Four pellets carry out hot precompressed respectively；It is assembled into one after pre-compacted, lays auxiliary material, certain temperature and pressure-cure are molded to obtain π type products.The technique solve the problems, such as the less π types product of A/F can not laying, solve carbon fibre composite and manufacture complicated π types product problem, reduce the degree-of-difficulty factor of each link, ensure the flatness of composite product surfaces externally and internally.This forming method provides new thinking for manufacture π type carbon fiber composite structure parts.
Description
Technical field
The present invention relates to a kind of antarafacial π types carbon fibre composite joint manufacturing process.
Background technology
With the fast development of modern technologies, higher requirement, carbon fibre composite system are proposed to carbon fibre material
The structural member of work is with high intensity, high-modulus, light-weighted feature with preferable application prospect.Existing π types part mainly uses
Metal material, it is big weight to be present in it, poor corrosion resistance, the shortcomings of service life is short.And carbon fibre composite has than strong
The features such as degree and specific modulus height, product excellent in mechanical performance, safe, designability and parts integrated molding, extensively should
Used in every field, fully meet higher assembly precision requirement.But because carbon fibre composite is in the manufacture smaller π types of A/F
Part can not carry out laying and package curing, and the selection to technique has significant limitation, and traditional-handwork laying can cause π types
The problems such as part corner region bridge formation, uneven thickness, pressure inequality, produces, cause to produce after hardening rich resin, layering, space,
The defects of loose, and then have a strong impact on the reliability and precision of product.
Above mentioned problem should be paid attention to simultaneously in the design and manufacturing process of antarafacial π type carbon fibre composite joints
Solve the problems, such as.
The content of the invention
It is an object of the invention to provide a kind of antarafacial π types carbon fibre composite joint production process, the technique can be real
The making of the less carbon fibre composite π type parts of existing A/F, and solve in π type part manufacturing process, because traditional-handwork is spread
The limitation of layer and the problems such as cause corner region bridges formation, uneven thickness, pressure inequality, cause to produce rich resin after hardening and divide
Layer, space, it is loose the defects of, and then have a strong impact on its performance and precision.
The present invention technical solution be：Carbon fiber prepreg is spread respectively on L-type, U-shaped and convex type mould
Layer, the L-type after paving, U-shaped and convex type mould are subjected to hot pre-compacted；By the L-type after excipient, U-shaped prepreg and convex type mould
Fit together；After pre-compacted, auxiliary material is laid.Preform mould vacuum bag sealing after combination is vacuumized, simultaneously
Apply pressure, be heating and curing shaping, obtains antarafacial π type carbon fibre composite joints.
Preferably, the L-type, U-shaped and convex type mould auxiliary section are filled using same material individual event band.
Preferably, the prepreg is bismaleimide resin using resin, and its resin content is 35% ~ 40%.
Preferably, the side that the ply sequence is engaged by two L-type moulds, a U-shaped mould and a convex type mould
Formula is carried out.
Preferably, the carbon fibre composite π types part A/F is between 15mm to 20mm.
Preferably, the curing process parameter is that pressure is 6bar, and heating-up temperature is carried out under the conditions of being 180 DEG C.
A kind of antarafacial π types carbon fibre composite joint, is made by above-mentioned manufacturing process.
The beneficial effects of the invention are as follows：The present invention is a kind of antarafacial π types carbon fibre composite joint manufacturing process and institute
π type joints are obtained, relative to steel π type joints, there is the advantages that light weight, corrosion-resistant.It is less to solve A/F simultaneously
The problem of narrow shape π type joints can not carry out artificial laying, broader window is provided for carbon fibre composite.Because of A/F
π type part craft laying in the range of 15mm ~ 20mm is difficult, and span prepreg is difficult to paving in fact, frame occurs in corner region
The defects of bridge, layering and uneven thickness.The technique can manufacture the π type parts in the range of 15mm ~ 20mm, and make π type parts turning
Region bridge formation situation is obviously improved, and surfaces externally and internally is smooth, and dimensional accuracy improves, and many of traditional handicraft can be avoided to lack
Fall into, expand the π type part scope of applications.And the technique reduces each link degree-of-difficulty factor of the making of π type parts, practical guarantee
The stability of product quality.
Brief description of the drawings
Fig. 1-1 to Fig. 1-4 is the mould structure schematic diagram of antarafacial π type carbon fibre composite joints of the embodiment of the present invention；
Wherein：1 and 2 be L-type mould, and 3 be U-shaped mould, and 4 be convex type mould.
The schematic cross-section of the U-shaped part assembling die of Fig. 2 carbon fibre composites；
Wherein：1 and 2 be L-type mould, and 3 be U-shaped mould, and 4 be convex type mould.
Fig. 3 is the schematic cross-section of antarafacial π type carbon fibre composite joints of the embodiment of the present invention.
Fig. 4 is the schematic diagram of fabrication technology of antarafacial π type carbon fibre composite joints of the embodiment of the present invention.
Embodiment
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Such as Fig. 1, shown in Fig. 2, the present embodiment provides a kind of manufacturing process of antarafacial π types carbon fibre composite joint, will
Carbon fiber prepreg laying on L-type, U-shaped and convex type mould；L-type after paving, U-shaped and convex are subjected to hot precompressed respectively
It is real；L-type after excipient, U-shaped prepreg and convex type mould are fitted together；After pre-compacted, auxiliary material is laid.
As shown in figure 4, laying 107, release cloth 103, barrier film 106, airfelt are laid successively on combination mould 101
104th, the auxiliary material of vacuum bag 105, sealing joint strip 102 is set between vacuum bag and mould, using external vacuum bag take out very
Sky, 180 DEG C of heating, while apply 6bar pressure-cures and be molded to obtain antarafacial π type carbon fibre composite joints.
A kind of antarafacial π types carbon fibre composite joint, is made by above-mentioned manufacturing process.
The beneficial effect of the present embodiment is：A kind of manufacturing process of antarafacial π types carbon fibre composite joint of the present embodiment
And gained π type parts, have the advantages that light weight, intensity are high, corrosion-resistant relative to metal material manufacture π type parts.But carbon fiber is answered
During condensation material π type layings, π type part craft laying of the A/F in the range of 15mm ~ 20mm is difficult, and prepreg is difficult to spread
There is the defects of bridge formation, layering and uneven thickness in tangible corner region.This technological design can produce A/F 15mm ~
20mm π type parts, solve the problems, such as narrow bending mould laying difficulty.And many defects of traditional lay-up process are improved, are avoided
Build bridge, layering and it is in uneven thickness the problems such as appearance, reduce the π type product production times, lay-up process degree-of-difficulty factor reduce, protect
The advantages that demonstrate,proving product inside and outside surface quality.
A kind of antarafacial π types carbon fibre composite joint of the present invention, can ensure that π types product has more excellent quality, make
Make easily, service life is longer, beneficial to use.
In addition to the implementation, patented product of the present invention can also have other embodiment.It is all to use equivalent substitution or wait
The technical scheme that effect conversion is formed, in the protection domain for all falling within this patent requirement.
Claims (7)
- A kind of 1. forming method of antarafacial π types carbon fibre composite joint, it is characterised in that：By carbon fiber prepreg L-type, Laying respectively is carried out on U-shaped and convex type mould, the L-type after paving, U-shaped and convex type mould are subjected to hot pre-compacted；After excipient L-type, U-shaped prepreg and convex type mould fit together；After pre-compacted, auxiliary material is laid；By the preform after combination The sealing of mould vacuum bag vacuumizes, while applies pressure, and be heating and curing shaping, obtains antarafacial π type carbon fibre composite joints.
- 2. antarafacial π types carbon fibre composite joint manufacturing process as claimed in claim 1, it is characterised in that：The prepreg The use of resin is bismaleimide resin, its resin content is 35% ~ 40%.
- 3. the manufacturing process of antarafacial π types carbon fibre composite joint as claimed in claim 1, it is characterised in that：The laying The mode that mode is engaged by L-type mould, U-shaped mould and convex mold is carried out.
- 4. such as the manufacturing process of claim 3 antarafacial π type carbon fibre composite joints, it is characterised in that：The π types product A/F is in the range of 15mm to 20mm.
- 5. the manufacturing process of antarafacial π types carbon fibre composite joint as claimed in claim 3, it is characterised in that：The L-type, U Type is filled with convex type mould auxiliary section using same material individual event band.
- 6. the manufacturing process of antarafacial π type carbon fibre composite joints as described in claim any one of 1-5, it is characterised in that： The curing process parameter is that pressure is 6bar, and heating-up temperature is carried out under the conditions of being 180 DEG C.
- 7. a kind of antarafacial π types carbon fibre composite joint, is made as the manufacturing process described in claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710543089.XA CN107553933A (en) | 2017-07-05 | 2017-07-05 | A kind of antarafacial π types carbon fibre composite joint forming method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710543089.XA CN107553933A (en) | 2017-07-05 | 2017-07-05 | A kind of antarafacial π types carbon fibre composite joint forming method |
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| CN107553933A true CN107553933A (en) | 2018-01-09 |
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| CN201710543089.XA Pending CN107553933A (en) | 2017-07-05 | 2017-07-05 | A kind of antarafacial π types carbon fibre composite joint forming method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332051A (en) * | 2018-04-12 | 2018-07-27 | 江苏恒神股份有限公司 | Carbon fiber composite pressure vessel connector |
| CN109591321A (en) * | 2018-12-18 | 2019-04-09 | 江苏新扬新材料股份有限公司 | A kind of engine contains the forming method and its manufactured outer culvert casing of casing outside |
| CN109732945A (en) * | 2019-01-24 | 2019-05-10 | 上海伽材新材料科技有限公司 | A kind of secondary forming process of composite material |
| CN114683587A (en) * | 2022-04-13 | 2022-07-01 | 华东交通大学 | Carbon fiber composite material T-shaped joint and manufacturing method and repairing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104162996A (en) * | 2014-06-30 | 2014-11-26 | 江苏恒神纤维材料有限公司 | A manufacturing process of a carbon-fibre composite material U-shaped part |
| CN105643958A (en) * | 2014-11-14 | 2016-06-08 | 江西昌河航空工业有限公司 | Forming tool and method for composite |
-
2017
- 2017-07-05 CN CN201710543089.XA patent/CN107553933A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104162996A (en) * | 2014-06-30 | 2014-11-26 | 江苏恒神纤维材料有限公司 | A manufacturing process of a carbon-fibre composite material U-shaped part |
| CN105643958A (en) * | 2014-11-14 | 2016-06-08 | 江西昌河航空工业有限公司 | Forming tool and method for composite |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332051A (en) * | 2018-04-12 | 2018-07-27 | 江苏恒神股份有限公司 | Carbon fiber composite pressure vessel connector |
| CN109591321A (en) * | 2018-12-18 | 2019-04-09 | 江苏新扬新材料股份有限公司 | A kind of engine contains the forming method and its manufactured outer culvert casing of casing outside |
| CN109732945A (en) * | 2019-01-24 | 2019-05-10 | 上海伽材新材料科技有限公司 | A kind of secondary forming process of composite material |
| CN114683587A (en) * | 2022-04-13 | 2022-07-01 | 华东交通大学 | Carbon fiber composite material T-shaped joint and manufacturing method and repairing method thereof |
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Application publication date: 20180109 |
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| RJ01 | Rejection of invention patent application after publication |