CN105538592A - Preparation method for novel carbon fiber composite automobile parts - Google Patents
Preparation method for novel carbon fiber composite automobile parts Download PDFInfo
- Publication number
- CN105538592A CN105538592A CN201510940940.3A CN201510940940A CN105538592A CN 105538592 A CN105538592 A CN 105538592A CN 201510940940 A CN201510940940 A CN 201510940940A CN 105538592 A CN105538592 A CN 105538592A
- Authority
- CN
- China
- Prior art keywords
- preparation
- superficial layer
- fibre composite
- carbon fibre
- matrix resin
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14008—Inserting articles into the mould
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C2045/14237—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity
- B29C2045/14245—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity using deforming or preforming means outside the mould cavity
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Reinforced Plastic Materials (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a preparation method for novel carbon fiber composite automobile parts. The preparation method comprises the steps of preparing carbon fiber composite surface layers through the hot-pressing technology, placing the surface layers into dies, injecting bottoms into the dies in an injection molding mode, connecting the bottoms to the carbon fiber composite surface layers in the injection molding process and finally obtaining corresponding automobile interior trim parts. Compared with the prior art, the automobile parts prepared through the method have the strength and the surface texture of carbon fiber composites and can be conveniently connected to surrounding parts, and mass production can be realized.
Description
Technical field
The invention belongs to auto parts and components and manufacture field, be specifically related to a kind of preparation method of novel carbon fiber composite auto parts and components.
Background technology
Lightweight has become the trend of world car development at present.Automotive light weight technology is exactly under the intensity ensureing automobile and security performance prerequisite, reduces the kerb weight of automobile as much as possible, thus improves the dynamic property of automobile, reduces fuel consumption, reduces exhaust pollution.
Carbon fibre composite is that the one of automobile lightweight is selected.Along with country is for the raising day by day of automotive energy-saving emission-reducing index, carbon fibre composite has also become the important directions of current Automobile Enterprises research in the application of automobile.
The structure of many auto parts and components is comparatively complicated, the connection of itself and surrounding components is comparatively difficult, particularly many automotive upholsteries, they are obtained by thermoplastic resin injection moulding, there is many buckles, be connected with the auto parts and components of surrounding, if such buckle is processed by carbon fibre composite, difficulty very, and carbon fibre composite toughness is poor, easily destroy when mounted, therefore need a kind of new technique to obtain carbon fibre composite automotive upholstery, make its intensity namely having carbon fibre composite and superficial makings, also can be connected with surrounding components easily simultaneously.
Summary of the invention
For solving the problems of the technologies described above; the invention provides a kind of preparation method of novel carbon fiber composite auto parts and components; the intensity of the existing carbon fibre composite of the auto parts and components prepared and superficial makings; also can be connected with surrounding components easily simultaneously, and can also large-scale production be met.
The preparation method of a kind of novel carbon fiber composite auto parts and components provided by the invention, comprises the following steps:
(1) carbon fibre composite prepreg is prepared;
(2) by the agent of the mould of superficial layer spraying lockhole;
(3) carbon fibre composite superficial layer is prepared;
(4) spray releasing agent, be positioned over by carbon fibre composite superficial layer in final part forming die, matched moulds, heating, temperature is raised to lower than matrix resin fusing point 10 DEG C;
(5) enter matrix resin to injection moulding in final part forming die, the demoulding after pressurize, obtain final exemplar.
Carbon fibre composite described in step (1) be have in the plain cloth in fixed orientation direction, twills, satin fabric, one-way fabric, multi-axial tricot one or more;
Further, in step (1), prepreg can adopt any one mode of melt impregnation, powder infusion method or fiber shuffling method to prepare;
Further, in step (1), prepreg matrix resin is thermoplastic resin, is the one in polypropylene, polyamide-based resin, polyphenylene sulfide, polyethers resin.Matrix resin mainly plays adhesive action.
Further, the carbon fiber thickness that in step (1), prepreg adopts is 0.5mm-1mm;
Further, the concrete steps preparing carbon fibre composite superficial layer in step (3) are: prepreg lay prepared by step (1) in carbon fibre composite superficial layer mould, adopt hot-forming mode to prepare; Pressure, the temperature of heating is relevant according to selected melting point resin.Superficial layer mould leaves locating slot, band heating and quick cooling function, and the upper limit that can heat up is higher than thermoplastic resin fusing point 30 DEG C-50 DEG C;
In step (4), final part forming die superficial layer is consistent with carbon fibre composite superficial layer mould, has locating slot, and when carrying out superficial layer lay, the locating slot of carbon fibre composite superficial layer agrees with mutually with the locating slot of final part forming die.
Matrix resin described in step (5) is consistent with the matrix resin of prepreg in step (1), and both interfaces can effectively be merged like this.
In step (5), the temperature of injection moulding cavity is higher than matrix resin fusing point 10 DEG C-20 DEG C, such maintenance matrix resin has good mobility, effectively can inject mould, the back side of carbon fibre composite superficial layer can be carried out efficient melting after injecting mould simultaneously, thus promote that the matrix resin of injection and carbon fiber surface surface layer can be good at combining;
Dwell time in step (5) controls at 40 seconds-70 seconds, and during pressurize, mold temperature is set to lower than matrix resin fusing point 50 DEG C.
The present invention adopts heat pressing process to prepare carbon fibre composite superficial layer, afterwards superficial layer is positioned in mould, mould injected by the mode of injection moulding in bottom and is connected with carbon fibre composite superficial layer in the process of injection moulding, finally obtaining corresponding automotive upholstery.Compared with prior art, the intensity of the existing carbon fibre composite of the product that the present invention prepares and superficial makings, also can be connected with surrounding components easily simultaneously, and can also meet large-scale production.
Detailed description of the invention
In the scheme of concrete employing: inside gadget prepared in example is below automobile gear shift panel, the back side complexity very of gearshift panel, and connect buckle also unusual complexity, carbon fibre composite part cannot be prepared by integrated mode.
Embodiment 1
A preparation method for novel carbon fiber composite auto parts and components, comprises the following steps:
The matrix resin adopted in example is below polypropylene (PP), the T300 twill carbon fiber of the permanent refreshing 3K in the carbon fiber Jiangsu adopted.
(1) melt impregnation is first adopted to prepare polypropylene preimpregnation carbon fiber plate, concrete grammar is: the carbon fiber extending yarn is entered heating Dilvar zone with the polypropylene film of upper and lower surface and release liners under the traction of carry-over pinch rolls, molten condition is heated to Deng resin, and adopt the pre-dipping machine of dry state to flatten after carbon fiber rapid osmotic dipping, cooling, namely obtains corresponding preimpregnation sheet material;
Adopt water cutting machine to be sheared by obtained preimpregnation sheet material, obtain superficial layer preimpregnation sheet material;
(2) on superficial layer mould, spray lockhole agent, and be heated to 200 DEG C;
(3) by 3 layers of well cutting surperficial preimpregnation sheet material put into mould, preheating 30s, afterwards matched moulds, pressurize 20s, the rear demoulding, cooling, obtain carbon fibre composite superficial layer;
(4) obtained carbon fibre composite superficial layer is put into the mould of final product, the locating slot of superficial layer must agree with the locating slot of mould, matched moulds, mold heated to 180 DEG C.
(5) adopt injection machine matrix resin to be injected the mould of final product, wherein the temperature of injection moulding cavity is 200 DEG C, afterwards pressurize 60s, and pressurize temperature is 150 DEG C, and the demoulding afterwards obtains final product.
Drop weight test is carried out to final product, breaking does not appear in exemplar, the situation such as stripping, meet the related request of automotive upholstery.
Embodiment 2
A preparation method for novel carbon fiber composite auto parts and components, comprises the following steps:
The matrix resin adopted in example is below polyamide (PA6), the T300 plain weave carbon fiber of the carbon fiber toray 6K adopted.
(1) melt impregnation is first adopted to prepare polyamide preimpregnation carbon fiber plate, concrete grammar is: the carbon fiber extending yarn is entered heating Dilvar zone with the polyamide film of upper and lower surface and release liners under the traction of carry-over pinch rolls, molten condition is heated to Deng resin, and adopt the pre-dipping machine of dry state to flatten after carbon fiber rapid osmotic dipping, cooling, namely obtains corresponding preimpregnation sheet material;
Adopt water cutting machine to be sheared by obtained preimpregnation sheet material, obtain superficial layer preimpregnation sheet material;
(2) on superficial layer mould, spray lockhole agent, and be heated to 280 DEG C;
(3) by 3 layers of well cutting surperficial preimpregnation sheet material put into mould, preheating 30s, afterwards matched moulds, pressurize 20s, the rear demoulding, cooling, obtain carbon fibre composite superficial layer;
(4) obtained carbon fibre composite superficial layer is put into the mould of final product, the locating slot of superficial layer must agree with the locating slot of mould, matched moulds, mold heated to 260 DEG C.
(5) adopt injection machine matrix resin to be injected the mould of final product, wherein the temperature of injection moulding cavity is 260 DEG C, afterwards pressurize 60s, and pressurize temperature is 200 DEG C, and the demoulding afterwards obtains final product.
Drop weight test is carried out to final product, breaking does not appear in exemplar, the situation such as stripping, meet the related request of automotive upholstery.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a preparation method for novel carbon fiber composite auto parts and components, is characterized in that, described preparation method comprises following
Step:
(1) carbon fibre composite prepreg is prepared;
(2) by the agent of the mould of superficial layer spraying lockhole;
(3) carbon fibre composite superficial layer is prepared;
(4) spray releasing agent, be positioned over by carbon fibre composite superficial layer in final part forming die, matched moulds, heating, temperature is raised to lower than matrix resin fusing point 10 DEG C;
(5) enter matrix resin to injection moulding in final part forming die, the demoulding after pressurize, obtain final exemplar.
2. preparation method according to claim 1, it is characterized in that, step (1) described carbon fibre composite be have in the plain cloth in fixed orientation direction, twills, satin fabric, one-way fabric, multi-axial tricot one or more.
3. preparation method according to claim 1 and 2, is characterized in that, in step (1), prepreg can adopt any one mode of melt impregnation, powder infusion method or fiber shuffling method to prepare.
4. preparation method according to claim 1, is characterized in that, in step (1), prepreg matrix resin is thermoplastic resin, is the one in polypropylene, polyamide-based resin, polyphenylene sulfide, polyethers resin.
5. preparation method according to claim 1 and 2, is characterized in that, the carbon fiber thickness that in step (1), prepreg adopts is 0.5mm-1mm.
6. preparation method according to claim 1, it is characterized in that, the concrete steps preparing carbon fibre composite superficial layer in step (3) are: prepreg lay prepared by step (1) in carbon fibre composite superficial layer mould, adopt hot-forming mode to prepare.
7. preparation method according to claim 1, is characterized in that, in step (4), final part forming die superficial layer is consistent with carbon fibre composite superficial layer mould, has locating slot.
8. preparation method according to claim 1, is characterized in that, matrix resin described in step (5) is consistent with the matrix resin of prepreg in step (1).
9. the preparation method according to claim 1 or 8, is characterized in that, in step (5), the temperature of injection moulding cavity is higher than matrix resin fusing point 10 DEG C-20 DEG C.
10. the preparation method according to claim 1 or 9, is characterized in that, the dwell time in step (5) controls at 40 seconds-70 seconds, and during pressurize, mold temperature is set to lower than matrix resin fusing point 50 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940940.3A CN105538592A (en) | 2015-12-16 | 2015-12-16 | Preparation method for novel carbon fiber composite automobile parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940940.3A CN105538592A (en) | 2015-12-16 | 2015-12-16 | Preparation method for novel carbon fiber composite automobile parts |
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| Publication Number | Publication Date |
|---|---|
| CN105538592A true CN105538592A (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510940940.3A Pending CN105538592A (en) | 2015-12-16 | 2015-12-16 | Preparation method for novel carbon fiber composite automobile parts |
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| Country | Link |
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| CN (1) | CN105538592A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110545974A (en) * | 2017-04-26 | 2019-12-06 | 亚科赛福林阿尔曼有限公司 | Molded part, method for producing a molded part, method for bonding a molded part to an object, and use of a fabric or a mesh |
-
2015
- 2015-12-16 CN CN201510940940.3A patent/CN105538592A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110545974A (en) * | 2017-04-26 | 2019-12-06 | 亚科赛福林阿尔曼有限公司 | Molded part, method for producing a molded part, method for bonding a molded part to an object, and use of a fabric or a mesh |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160504 |