CN108016052A - A kind of forming method of carbon fibre pipe fitting - Google Patents
A kind of forming method of carbon fibre pipe fitting Download PDFInfo
- Publication number
- CN108016052A CN108016052A CN201711015936.1A CN201711015936A CN108016052A CN 108016052 A CN108016052 A CN 108016052A CN 201711015936 A CN201711015936 A CN 201711015936A CN 108016052 A CN108016052 A CN 108016052A
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- carbon fiber
- fiber prepreg
- carbon
- forming method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The present invention provides a kind of forming method of carbon fibre pipe fitting, it includes the following steps：Airbag is set with mandrel surface；After being laid with carbon fiber prepreg on the surface of the airbag, extract plug out, airbag is loaded into molding die；Pressurize for air bag inflator, while molding die is heated, after carbon fiber prepreg forms tubular structure, the cooling demoulding, obtains the carbon fibre pipe fitting.Compared with prior art, the present invention has following beneficial effect：The present invention can reduce cost while rod piece excellent properties are ensured.
Description
Technical field
The present invention relates to a kind of forming method of carbon fibre pipe fitting, belong to technical field of composite materials.
Background technology
Carbon fibre composite has high ratio modulus, high intensity, counter-bending, thermal coefficient of expansion is small, light-weight, self lubricity
The features such as good, have been more and more widely used in fields such as aerospace, automobile making, sports equipments.Carbon fiber composite
The moulding process of material is generally coated with technique using winding process, RTM techniques and carbon fiber prepreg, passes through the demoulding after curing molding
Extract core out, just obtain the pipe fitting of a full carbon fiber.In use, some accessories are installed on pipe fitting, if full carbon
Fiber fittings, can only be by punching, tapping come retaining element, and window should not be opened excessive, and no person can break because of axial direction fibre
Split influences whole pipe fitting performance too much.
The shaping efficiency of carbon fibre pipe fitting is low, and conventional curing uses autoclave forming process and pultrusion molding process,
Autoclave forming process, excellent product performance are of high cost；Pultrusion molding process product cost is low, but poor performance (can only pultrusion
0 ° of fiber), application range is narrow.
The content of the invention
For in the prior art the defects of, the object of the present invention is to provide a kind of forming method of carbon fibre pipe fitting.
The present invention is achieved by the following technical solutions：
The present invention provides a kind of forming method of carbon fibre pipe fitting, it includes the following steps：
Airbag is set with mandrel surface；
After being laid with carbon fiber prepreg on the surface of the airbag, extract plug out, airbag is loaded into molding die；
Pressurize for air bag inflator, while molding die is heated, after carbon fiber prepreg forms tubular structure, drop
The temperature demoulding, obtains the carbon fibre pipe fitting.
Preferably, the diameter of the plug is according to the inner wall circumference calculating of carbon fibre pipe fitting, specific formula for calculation
For：Pipe fitting for face size for " length " × " width " × " thickness ", required diameter of mandrel=[(length-thickness * 1.2)+
(width-thickness * 1.2)]/π.
Preferably, the carbon fiber prepreg is made of carbon fiber yarn and epoxy resin, the carbon fiber yarn
Percetage by weight is 60~80%, and the percetage by weight of the epoxy resin is 20~40%.
Preferably, the laying method of the carbon fiber prepreg is：The carbon fiber prepreg that will be cut
It is placed on platform, control carbon fiber prepreg is parallel with plug, rolls plug, and carbon fiber prepreg just wraps up one layer in plug
On.
Preferably, the angle of the carbon fiber prepreg is 0 °, 90 °, 45 ° or -45 °.
Preferably, it is 1.5MPa to the air bag inflator pressure.
Compared with prior art, the present invention has following beneficial effect：
1st, the present invention is used in die cost, laying man-hour, molding man-hour, form removal man-hour, equipment, and hot pressing is compared in energy consumption
Tank has very big cost advantage；
2nd, product fibre structure and compactness extent are suitable with autoclave technique, properties of product and autoclave molding pipe fitting phase
When.
Brief description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the flow chart of the forming method of the carbon fibre pipe fitting of the present invention.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following embodiments will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment 1
As shown in Figure 1, present embodiments providing the forming method of the carbon fiber square tube of a 40mm × 40mm × 2mm, have
Body includes the following steps：
The diameter of plug is designed according to the computational methods of [(40-2*1.2)+(40-2*1.2)]/π；
Airbag is set with mandrel surface；
After being laid with carbon fiber prepreg on the surface of the airbag, extract plug out, airbag is loaded into molding die；
Pressurize by air bag inflator of the pressure of 1.5MPa, while molding die is heated, treat carbon fiber prepreg shape
Into after pipe fitting type structure, the cooling demoulding, obtains the carbon fibre pipe fitting；Wherein, the carbon fiber prepreg by carbon fiber yarn and
Epoxy resin forms, and the surface density of the carbon fiber yarn is 25~250g/m2, the percetage by weight of the epoxy resin is
20%, the percetage by weight of carbon fiber yarn is 80%, and the angle of carbon fiber prepreg is 0 °.
Comparative example 1
This comparative example provides the autoclave molding method of the carbon fiber square tube of a 40mm × 40mm × 2mm, specific bag
Include following steps：
Make square core rod；
By carbon fiber prepreg after core surface laying, it is placed in external mold and is molded；
Progress pressurized, heated, curing and demolding in autoclave are sent into after making vacuum bag, and core rod is extracted out.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (6)
1. a kind of forming method of carbon fibre pipe fitting, it is characterised in that include the following steps：
Airbag is set with mandrel surface；
After being laid with carbon fiber prepreg on the surface of the airbag, extract plug out, airbag is loaded into molding die；
Pressurize for air bag inflator, while molding die is heated, after carbon fiber prepreg forms tubular structure, cooling is de-
Mould, obtains the carbon fibre pipe fitting.
2. the forming method of carbon fibre pipe fitting as claimed in claim 1, it is characterised in that the diameter of the plug is fine according to carbon
The inner wall circumference calculating of pipe fitting is tieed up, specific formula for calculation is：For the pipe fitting that face size is " length " × " width " × " thickness ", institute
Diameter of mandrel=[(length-thickness * 1.2)+(width-thickness * 1.2)]/π needed.
3. the forming method of carbon fibre pipe fitting as claimed in claim 1, it is characterised in that the carbon fiber prepreg is fine by carbon
Yarn and epoxy resin composition are tieed up, the percetage by weight of the carbon fiber yarn is 60~80%, the weight percent of the epoxy resin
Number is 20~40%.
4. the forming method of carbon fibre pipe fitting as claimed in claim 1, it is characterised in that the laying of the carbon fiber prepreg
Method is：The carbon fiber prepreg cut is placed on platform, control carbon fiber prepreg is parallel with plug, rolls core
Rod, carbon fiber prepreg just wrap up one layer on plug.
5. the forming method of the carbon fibre pipe fitting as described in claim 1 or 3, it is characterised in that the carbon fiber prepreg
Angle is 0 °, 90 °, 45 ° or -45 °.
6. the forming method of carbon fibre pipe fitting as claimed in claim 1, it is characterised in that be to the air bag inflator pressure
1.5MPa。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711015936.1A CN108016052A (en) | 2017-10-25 | 2017-10-25 | A kind of forming method of carbon fibre pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711015936.1A CN108016052A (en) | 2017-10-25 | 2017-10-25 | A kind of forming method of carbon fibre pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108016052A true CN108016052A (en) | 2018-05-11 |
Family
ID=62079599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711015936.1A Pending CN108016052A (en) | 2017-10-25 | 2017-10-25 | A kind of forming method of carbon fibre pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108016052A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110815851A (en) * | 2019-11-21 | 2020-02-21 | 航天特种材料及工艺技术研究所 | Forming method of revolving body composite material component |
| CN111531975A (en) * | 2020-05-06 | 2020-08-14 | 上海电气集团股份有限公司 | Carbon fiber bar and manufacturing method thereof |
| CN112743875A (en) * | 2020-12-29 | 2021-05-04 | 东莞泰合复合材料有限公司 | Composite material workpiece forming method and composite material workpiece |
| CN113733597A (en) * | 2021-09-15 | 2021-12-03 | 广东汇天航空航天科技有限公司 | Composite material part forming method, closed beam and automobile |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020760A (en) * | 2017-03-16 | 2017-08-08 | 泰山体育产业集团有限公司 | A kind of tubular composite material part forming methods |
-
2017
- 2017-10-25 CN CN201711015936.1A patent/CN108016052A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020760A (en) * | 2017-03-16 | 2017-08-08 | 泰山体育产业集团有限公司 | A kind of tubular composite material part forming methods |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110815851A (en) * | 2019-11-21 | 2020-02-21 | 航天特种材料及工艺技术研究所 | Forming method of revolving body composite material component |
| CN111531975A (en) * | 2020-05-06 | 2020-08-14 | 上海电气集团股份有限公司 | Carbon fiber bar and manufacturing method thereof |
| CN112743875A (en) * | 2020-12-29 | 2021-05-04 | 东莞泰合复合材料有限公司 | Composite material workpiece forming method and composite material workpiece |
| CN113733597A (en) * | 2021-09-15 | 2021-12-03 | 广东汇天航空航天科技有限公司 | Composite material part forming method, closed beam and automobile |
| CN113733597B (en) * | 2021-09-15 | 2022-12-20 | 广东汇天航空航天科技有限公司 | Composite material part forming method, closed beam and automobile |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180511 |