CN105965918A - Manufacturing process for automobile engine hood assembly of carbon fiber composite - Google Patents
Manufacturing process for automobile engine hood assembly of carbon fiber composite Download PDFInfo
- Publication number
- CN105965918A CN105965918A CN201610339785.4A CN201610339785A CN105965918A CN 105965918 A CN105965918 A CN 105965918A CN 201610339785 A CN201610339785 A CN 201610339785A CN 105965918 A CN105965918 A CN 105965918A
- Authority
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- China
- Prior art keywords
- manufacturing process
- carbon fibre
- carbon fiber
- resin
- mould
- 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
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 19
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 239000011347 resin Substances 0.000 claims abstract description 25
- 239000006260 foam Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000004744 fabric Substances 0.000 claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 27
- 239000000835 fiber Substances 0.000 claims description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 25
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 150000001721 carbon Chemical class 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- DZQLQEYLEYWJIB-UHFFFAOYSA-O 4-ammoniobutanal Chemical compound [NH3+]CCCC=O DZQLQEYLEYWJIB-UHFFFAOYSA-O 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 208000016261 weight loss Diseases 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
Abstract
The invention discloses a manufacturing process for an automobile engine hood assembly of a carbon fiber composite. The manufacturing process for the automobile engine hood assembly of the carbon fiber composite is characterized by comprising the steps that (1) carbon fiber materials, PVC foam and resin are selected; (2) an RTM mould is cleaned and coated with a releasing agent; (3) the RTM mould is coated with a gel coat; (4) carbon fiber fabric comprising an automobile body outer covering part layer and an automobile body structural layer is laid, and a PVC foam layer is evenly added between the two layers; (5) the mould is closed and clamped; (6) the resin is injected into the mould; (7) curing is conducted; (8) the mould is opened, demoulding is conducted and the molded automobile engine hood assembly is taken out; and (9) the taken-out automobile engine hood assembly is polished and brightened. According to the manufacturing process for the automobile engine hood assembly of the carbon fiber composite, an inner plate of a conventional steel work is removed, the inner plate and an outer plate are integrated, one-time forming is simple in step and low in cost, it is also guaranteed that performance requirements are met at the same time, and the manufacturing process for the automobile engine hood assembly of the carbon fiber composite has relatively good application prospects.
Description
Technical field
The invention belongs to automobile part production technique field, more particularly, it relates to a kind of carbon fibre composite car engine cap assembly manufacturing process.
Background technology
Along with development, people are more and more higher to the moulding of car and performance requirement.Alleviating automobile sole mass is to reduce one of fuel oil consumption and the most effective measure reducing discharge, and the report that ABAL of the world proposes is pointed out, car mass often reduces 10%, it is possible to decrease the oil consumption of 6%～8%.Existing automobile engine cover mostly is metal structure, integral body quality weight, and power demand is big, thus to driving engine and suspension arrangement to require height, impact is dangerous big.
Summary of the invention
Present invention aim to address the problem that prior art exists, it is provided that one can alleviate body quality, cost of manufacture is low, and anti-impact force performance is good, improves carbon fiber automobile engine cover of complete vehicle structure performance and preparation method thereof.
To achieve these goals, the technical scheme that the present invention takes is this carbon fibre composite car engine cap assembly manufacturing process provided, it is characterised in that comprise the steps: 1) select carbon fibre material, PVC foam and resin；2) cleaning RTM mold, coating release agent；3) it is coated with gel coat；4) carbon fibre fabric laying, is provided with body outer panel layer and body structure layer, the most uniformly adds PVC froth bed；5) matched moulds clamping；6) resin injects mould；7) solidification；8) the bonnet assembly of molding is taken out in the die sinking demoulding；9) the bonnet assembly taken out is polished and light processes.
Step 1) middle selection eastern beautiful carbon fiber 3K/12K laying making body outer panel layer, select eastern beautiful carbon fiber 12K/24K or 48K to make body structure layer, resin selection is advanced in years schemes R135 epoxy resin and H1366 curing agent resin.
Step 4) in, by eastern beautiful carbon fiber according to body outer panel 3K/12K, select laying angle [± 45 °]2Laying angle [0 °/45 °/90 °/-45 °] is selected with body structure layer 12K/24K or 48K2Carrying out laying, between described body outer panel layer and body structure layer, 2.5～3.5mm thick PVC foams are uniformly added at middle part, and surrounding adds the PVC foam that 4.5-6mm is thick.
The carbon fibre fabric completed is used and is laser-cut into suitable shape, place in RTM mold, carry out matched moulds clamping by upper and lower mould alignment pin and locking mechanism.
In step 6) before, mould is heated to 50～60 DEG C and preheats.
Preparing resin material, epoxy resin and curing agent resin 1:1 proportioning by corresponding proportioning, the content (percentage by weight) of carbon fibre fabric is 50-60%, and the content of epoxide resin material is 40-50%.
After treating resin injection, stand 40～80 minutes, place into the heating realization solidification through 150～190 minutes in the environment of 110～130 DEG C.
The present invention is compared with prior art, have the advantage that the bonnet assembly that carbon fibre composite car engine cap assembly manufacturing process of the present invention produces is compared with traditional metal material truck bonnet, the material behavior of carbon fiber Automobile Part can be embodied very well, one-shot forming step is simple, low cost, can guarantee that again simultaneously and meets performance requirement.It not only has high intensity, high-modulus and corrosion-resistant and light weight, resisting fatigue, sealing, vibration damping and good insulation preformance.
Detailed description of the invention
Below by the description to embodiment, the detailed description of the invention of the present invention is described in further detail.
The technical scheme that the present invention takes is this carbon fibre composite car engine cap assembly manufacturing process provided, it is characterised in that comprise the steps: 1) select carbon fibre material, PVC foam and resin；2) cleaning RTM mold, coating release agent；3) it is coated with gel coat；4) carbon fibre fabric laying, is provided with body outer panel layer and body structure layer, the most uniformly adds PVC froth bed；5) matched moulds clamping；6) resin injects mould；7) solidification；8) the bonnet assembly of molding is taken out in the die sinking demoulding；9) the bonnet assembly taken out is polished and light processes.
For making technique scheme more detailed and concrete, the present invention also provides for optimal technical scheme further below, to obtain satisfied practical function:
Step 1) middle selection eastern beautiful carbon fiber 3K/12K laying making body outer panel layer, select eastern beautiful carbon fiber 12K/24K or 48K to make body structure layer, resin selection is advanced in years schemes R135 epoxy resin and H1366 curing agent resin.
Step 4) in, by eastern beautiful carbon fiber according to body outer panel 3K/12K, select laying angle [± 45 °]2Laying angle [0 °/45 °/90 °/-45 °] is selected with body structure layer 12K/24K or 48K2Carrying out laying, between described body outer panel layer and body structure layer, 2.5～3.5mm thick PVC foams are uniformly added at middle part, and surrounding adds the PVC foam that 4.5-6mm is thick.
The carbon fibre fabric completed is used and is laser-cut into suitable shape, place in RTM mold, carry out matched moulds clamping by upper and lower mould alignment pin and locking mechanism.
In step 6) before, mould is heated to 50～60 DEG C and preheats.
Preparing resin material, epoxy resin and curing agent resin 1:1 proportioning by corresponding proportioning, the content (percentage by weight) of carbon fibre fabric is 50-60%, and the content of epoxide resin material is 40-50%.
After treating resin injection, stand 40～80 minutes, place into the heating realization solidification through 150～190 minutes in the environment of 110～130 DEG C.
A kind of embodiment that the present invention provides, the most uniformly adds 3mmPVC foam at body outer panel and body structure layer.Surrounding adds the PVC foam that 5mm is thick.Put in RTM mold after completing；Mould is heated to 50～60 DEG C, resin by injection；After treating resin injection, standing 1 as a child, is placed in the heating through 3 hours in the environment of 125 DEG C, obtains the bonnet of carbon fibre composite；The demoulding, carries out grinding process to exemplar, carries out light process.
The present invention uses carbon fibre composite exemplar quality only about 3.4kg, loss of weight 4.4kg compared with raw steel product 7.8kg, and light weight effect reaches 56%, and weight loss effect is obvious.The present invention eliminates the inner panel of conventional steel product, by inner and outer plates integrator, and for improving rigidity, have employed sandwich foamed sandwich structure, and wherein, the peripheral regions at hood uses foam thick for 5mm, to improve integral rigidity；Zone line have employed foam thick for 3mm in order to improve dent resistance；Peripheral regions also increases the laying of composite for improving torsion and bending stiffness.
The bonnet assembly that carbon fibre composite car engine cap assembly manufacturing process of the present invention produces is with traditional metal material truck bonnet comparatively speaking, the material behavior of carbon fiber Automobile Part can be embodied very well, one-shot forming step is simple, low cost, can guarantee that again simultaneously and meets performance requirement.It not only has high intensity, high-modulus and corrosion-resistant and light weight, resisting fatigue, sealing, vibration damping and good insulation preformance.
The knot present invention is exemplarily described above; but the present invention is not limited to aforesaid way; as long as using improving or directly applying to other occasion of the various unsubstantialities that method is conceived and technical scheme is carried out of the present invention, all fall within protection scope of the present invention.
Claims (7)
1. a carbon fibre composite car engine cap assembly manufacturing process, it is characterised in that include
Following steps: 1) select carbon fibre material, PVC foam and resin；2) cleaning RTM mold, is coated with the demoulding
Agent；3) it is coated with gel coat；4) carbon fibre fabric laying, is provided with body outer panel layer and body structure layer,
The most uniformly add PVC froth bed；5) matched moulds clamping；6) resin injects mould；7) solid
Change；8) the bonnet assembly of molding is taken out in the die sinking demoulding；9) the bonnet assembly taken out is polished
And light processes.
2. according to the carbon fibre composite car engine cap assembly manufacturing process described in claim 1,
It is characterized in that: step 1) middle selection eastern beautiful carbon fiber 3K/12K laying making body outer panel layer,
Selecting eastern beautiful carbon fiber 12K/24K or 48K to make body structure layer, resin is selected and is stepped figure R135 epoxy
Resin and H1366 curing agent resin.
3. according to the carbon fibre composite car engine cap assembly manufacturing process described in claim 2,
It is characterized in that: step 4) in, by eastern beautiful carbon fiber according to body outer panel 3K/12K, select paving
Layer angle [± 45 °]2Laying angle [0 °/45 ° is selected with body structure layer 12K/24K or 48K
/ 90 °/-45 °]2Carry out laying, between described body outer panel layer and body structure layer in
Portion uniformly adds 2.5～3.5mm thick PVC foams, and surrounding adds the PVC foam that 4.5-6mm is thick.
4. according to the carbon fibre composite car engine cap assembly manufacturing process described in claim 3,
It is characterized in that: the carbon fibre fabric completed is used and is laser-cut into suitable shape, place RTM mould
In tool, carry out matched moulds clamping by upper and lower mould alignment pin and locking mechanism.
5. according to the carbon fibre composite car engine cap assembly manufacturing process described in claim 1,
It is characterized in that: in step 6) before, mould is heated to 50～60 DEG C and preheats.
6. according to the carbon fibre composite car engine cap assembly manufacturing process described in claim 2,
It is characterized in that: prepare resin material, epoxy resin and curing agent resin 1:1 proportioning by corresponding proportioning,
The content (percentage by weight) of carbon fibre fabric is 50-60%, and the content of epoxide resin material is 40-50%.
7. according to the carbon fibre composite car engine cap assembly manufacturing process described in claim 1,
It is characterized in that: after treating resin injection, stand 40～80 minutes, place into the ring of 110～130 DEG C
In border, the heating through 150～190 minutes realizes solidification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610339785.4A CN105965918A (en) | 2016-05-21 | 2016-05-21 | Manufacturing process for automobile engine hood assembly of carbon fiber composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610339785.4A CN105965918A (en) | 2016-05-21 | 2016-05-21 | Manufacturing process for automobile engine hood assembly of carbon fiber composite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105965918A true CN105965918A (en) | 2016-09-28 |
Family
ID=56956085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610339785.4A Pending CN105965918A (en) | 2016-05-21 | 2016-05-21 | Manufacturing process for automobile engine hood assembly of carbon fiber composite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105965918A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106828613A (en) * | 2017-03-02 | 2017-06-13 | 湖南三合汽车新材料有限公司 | A kind of automobile engine cover and its manufacture craft |
| CN109747721A (en) * | 2017-11-06 | 2019-05-14 | 江苏越科新材料有限公司 | A kind of novel light weight combined type carbon fiber bonnet and preparation method thereof |
| CN112248497A (en) * | 2020-09-28 | 2021-01-22 | 湖北红岸车辆科技有限公司 | Car as a house automobile body integrated into one piece technology and car as a house |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496400A (en) * | 2013-09-27 | 2014-01-08 | 奇瑞汽车股份有限公司 | Carbon fiber composite automobile radiator upper cross beam assembly and manufacturing method thereof |
| CN103753829A (en) * | 2013-12-18 | 2014-04-30 | 奇瑞汽车股份有限公司 | RTM preform and RTM rapid forming die applying the same |
-
2016
- 2016-05-21 CN CN201610339785.4A patent/CN105965918A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496400A (en) * | 2013-09-27 | 2014-01-08 | 奇瑞汽车股份有限公司 | Carbon fiber composite automobile radiator upper cross beam assembly and manufacturing method thereof |
| CN103753829A (en) * | 2013-12-18 | 2014-04-30 | 奇瑞汽车股份有限公司 | RTM preform and RTM rapid forming die applying the same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106828613A (en) * | 2017-03-02 | 2017-06-13 | 湖南三合汽车新材料有限公司 | A kind of automobile engine cover and its manufacture craft |
| CN109747721A (en) * | 2017-11-06 | 2019-05-14 | 江苏越科新材料有限公司 | A kind of novel light weight combined type carbon fiber bonnet and preparation method thereof |
| CN112248497A (en) * | 2020-09-28 | 2021-01-22 | 湖北红岸车辆科技有限公司 | Car as a house automobile body integrated into one piece technology and car as a house |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160928 |
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