CN105109058A - Process for forming composite product through plastic film used for replacing large complex mold - Google Patents
Process for forming composite product through plastic film used for replacing large complex mold Download PDFInfo
- Publication number
- CN105109058A CN105109058A CN201510556417.0A CN201510556417A CN105109058A CN 105109058 A CN105109058 A CN 105109058A CN 201510556417 A CN201510556417 A CN 201510556417A CN 105109058 A CN105109058 A CN 105109058A
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- product
- carbon cloth
- resin
- supporting plate
- foam
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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
- 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
- B29C70/34—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
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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 invention relates to a process for forming a composite product through a plastic film used for replacing a large complex mold. The process includes the steps that firstly, a forming supporting plate is coated with a mold release agent, then a carbon fiber sheet of the proper thickness is laid on the forming supporting plate, the carbon fiber sheet is evenly coated with a proper amount of resin, processed foam is placed on the carbon fiber sheet, and then a carbon fiber sheet is laid on the foam in the same way; finally, a proper amount of rubber sucking felt is placed on the peripheries of the carbon fiber sheets, sealing rubber strips are pasted, the plastic film with the proper width and length is pasted onto the sealing rubber strips, and it is guaranteed that sealing is complete; and finally, vacuumizing pipes are inserted into the two ends of the product, and the product is placed in an oven for heating and vacuumizing forming at the same time. In the vacuumizing process, redundant resin and bubbles in the carbon fiber sheets are scraped to the periphery of the product through a plastic scraper blade, and it is guaranteed that the surface of the formed carbon fiber product is smooth, bright and free of bubbles. The forming supporting plate and the plastic film are adopted for replacing the expensive forming mold, so that cost is low; operation is easy, and no excessive manpower or complex forming auxiliary equipment is needed.
Description
Technical field
The present invention relates to a kind of technique of composite product, be specifically related to a kind of without mould and complicated auxiliary equipment, the plastic sheeting that production cost is lower replaces the technique of large complicated mould-forming composite material goods.
Background technology
Large in the past, one side has the composite product of complex model shaping, need expensive mould (die cost about 150,000) and auxiliary equipment, and shaping rear product surface has the defects such as pin hole, needs to carry out process of spraying paint.The Product processing cycle is long, and production cost is high, sprays paint big for environment pollution.
Summary of the invention
For the problems referred to above, main purpose of the present invention is to provide a kind of without mould and complicated auxiliary equipment, and the plastic sheeting that production cost is lower replaces the technique of large complicated mould-forming composite material goods.
The present invention solves above-mentioned technical problem by following technical proposals: a kind of plastic sheeting replaces the technique of large complicated mould-forming composite material goods, and described technique comprises the steps:
Step (1): select shaping supporting plate;
Step (2), cleaned out by shaping supporting plate, surface is coated with mould release;
Step (3), paving material; Shaping supporting plate upper berth material after step (2) process, the order of material laying is: the upper surface of shaping supporting plate is followed successively by lower floor's carbon cloth, foam and upper strata carbon cloth from the bottom up;
(4) periphery of the material, completed in step (3) is spread and is inhaled glue felt;
(5), by plastic foil be layered on the surface of the product of the process of step (4), seal with sealing joint strip;
(6), product vacuumizes: product vacuumizes in shaping process, with plastic scrapers, unnecessary resin and bubble scraped product periphery;
(7), product is dried;
(8), finished product is obtained after solidification.
In specific embodiment of the present invention, the shaping supporting plate in step (1) elects safety glass, metallic plate or ganoid plastic plate as.
In specific embodiment of the present invention, step (3) specifically comprises the steps:
Step (301): be layered on by lower floor's carbon cloth in the middle of shaping supporting plate, is then coated in the surface of lower floor's carbon cloth uniformly, resin and lower floor's carbon cloth is fully infiltrated by the resin mixing, be stirred;
Step (302): curved surface foam Digit Control Machine Tool being processed into the one side moulding that to be plane another side be needs, one deck resin is coated with uniformly in the upper and lower surface of foam, then the plane of foam is adjacent to lower floor's carbon cloth, thus foam is layered on lower floor's carbon cloth;
Step (303): the surface resin mixing, be stirred being coated in uniformly upper strata carbon cloth, makes resin and upper strata carbon cloth fully infiltrate;
Step (304): then the curved surface of foam is adjacent to upper strata carbon cloth, thus upper strata carbon cloth is layered on foam.
In specific embodiment of the present invention, described resin is the mixture of one or more in unsaturated-resin, epoxy resin or vinylite.
In specific embodiment of the present invention, inhale glue felt in step (4) and be placed on lower floor's carbon fiber periphery; In step (5), sealing joint strip is attached on the flange of shaping supporting plate, and then sticks plastic film seal; Gap is left between sealing joint strip and suction glue felt.
In specific embodiment of the present invention, in described step (6), product vacuumizes use vacuum pump evacuation, vacuumizes later vacuum for more than-0.09MPa.
In specific embodiment of the present invention, in described step (7), product is dried, and concrete bake out temperature is 40-100 DEG C.
In specific embodiment of the present invention, in described step (8), the time range of solidification is 0.5-4 hour.
In specific embodiment of the present invention, described foam is the mixture of one or more in expanded polyester, polyvinyl chloride, acrylonitrile one styrene, Polymethacrylimide, polyurethane.
In specific embodiment of the present invention, the mixture of one or more in polyvinyl chloride, expanded polyester, nylon, polypropylene elected as by described plastic foil.
Positive progressive effect of the present invention is: plastic sheeting provided by the invention replaces the technique of large complicated mould-forming composite material goods to have the following advantages: adopt shaping supporting plate and plastic foil to replace expensive mould, cost is very low; Simple to operate, operation mobility is good, does not need a large amount of manpower and complicated shaping auxiliary equipment; Vacuumize while heat in forming process, and with plastic scrapers, unnecessary resin and bubble are scraped, shaping rear product surface is bright, formation skeleton is obvious, without obvious bubble, back segment is not used to carry out process of spraying paint again, production link shortens, reduce production cost, improve production efficiency, need not to spray paint the pollution that can reduce environment in rear road; Shaping rear plastic foil is attached to product surface, product surface can be protected not to be scratched in rear road machining process, and product surface need not extra pasting protective film, reduces product cost.
Accompanying drawing explanation
Fig. 1 is the illustraton of model that plastic foil replaces die composite material product forming process.
Detailed description of the invention
Present pre-ferred embodiments is provided, to describe technical scheme of the present invention in detail below in conjunction with accompanying drawing.
Fig. 1 is the illustraton of model that plastic foil replaces die composite material product forming process, and as shown in Figure 1, in the present invention, whole finished product comprises: shaping supporting plate 1, lower floor's carbon cloth 2, foam 3, upper strata carbon cloth 4, suction glue felt 5, sealing joint strip 6, plastic foil 7.
The composite manufactured in Fig. 1 comprises the steps:
Step (1): select shaping supporting plate 1; Shaping supporting plate 1 can elect safety glass, metallic plate or ganoid plastic plate as.
Step (2), cleaned out by shaping supporting plate 1, surface is coated with mould release;
Step (3), paving material; Shaping supporting plate 1 upper berth material after step (2) process, the order of material laying is: the upper surface of shaping supporting plate 1 is followed successively by lower floor's carbon cloth 2, foam 3 and upper strata carbon cloth 4 from the bottom up;
Step (3) specifically comprises the steps:
Step (301): lower floor's carbon fiber 2 cloth is layered in the middle of shaping supporting plate 1, then the resin mixing, be stirred is coated in uniformly the surface of lower floor's carbon cloth 2, resin and lower floor's carbon cloth are fully infiltrated;
Step (302): curved surface foam 3 being processed into the moulding for plane another side being simultaneously needs with Digit Control Machine Tool (CNC), one deck resin is coated with uniformly in the upper and lower surface of foam, then the plane of foam 3 is adjacent to lower floor's carbon cloth, thus foam 3 is layered on lower floor's carbon cloth 2;
Step (303): the surface resin mixing, be stirred being coated in uniformly upper strata carbon cloth 4, makes resin and upper strata carbon cloth 4 fully infiltrate;
Step (304): then the curved surface of foam is adjacent to upper strata carbon cloth 4, thus upper strata carbon cloth 4 is layered on foam 3.
Resin above can elect the mixture of one or more in unsaturated-resin, epoxy resin or vinylite as.
(4) periphery of the material, completed in step (3) is spread and is inhaled glue felt 5;
(5), by plastic foil 7 be layered on the surface of the product of the process of step (4), seal with sealing joint strip 6; Inhale glue felt 5 in step (5) and be placed on lower floor's carbon fiber 2 periphery; Sealing joint strip 6 is attached on the flange of shaping supporting plate 1, and then sticks plastic foil 7 and seal; Gap 8 is left between sealing joint strip 6 and suction glue felt 5.
Be the periphery that the suction glue felt of about 4MM is layered on product by thickness, with rag, resin unnecessary for shaping supporting plate edge cleaned out, then paste sealing joint strip, finally plastic foil is layered on product surface sealing joint strip good seal.
(6), product vacuumizes: product vacuumizes in shaping process, with plastic scrapers, unnecessary resin and bubble scraped product periphery.Product vacuumizes use vacuum pump evacuation, vacuumizes later vacuum for more than-0.09MPa.
(7), product is dried: in described step (7), product is dried, and in described step (7), product is dried, and concrete bake out temperature is 40-100 DEG C.The resin cure temperature that concrete bake out temperature is different with the time is different
(8), finished product is obtained after solidification.In described step (8), the time range of solidification is 0.5-4 hour.
In concrete utilization of the present invention, foam is the mixture of one or more in expanded polyester (PET), polyvinyl chloride (PVC), acrylonitrile one styrene (SAN), Polymethacrylimide (PMI), polyurethane (PU).The mixture of one or more in polyvinyl chloride (PVC), expanded polyester (PET), nylon, polypropylene (PP) elected as by plastic foil.
Here is specific embodiment:
Examples of implementation 1:
First cleaned out by shaping supporting plate, surface is coated with mould release.Carbon cloth is layered in the middle of supporting plate, then the resin mixing, be stirred is coated in carbon cloth surface uniformly, resin and carbon cloth are fully infiltrated.
Foam Digit Control Machine Tool (CNC) being processed into one side for plane is simultaneously the curved surface of required moulding, is coated with one deck resin uniformly, then spreads carbon cloth according to the method for the first step at foam surface at foam surface.
Be the periphery that the suction glue felt of about 4MM is layered on product by thickness, with rag, resin unnecessary for shaping supporting plate edge cleaned out, then paste sealing joint strip, finally plastic foil is layered on product surface sealing joint strip good seal.
Regulate the temperature of baking oven, bake out temperature is 40-100 DEG C, installs vacuum-pumping tube at product two ends, vavuum pump is adjusted to vacuum for more than-0.09MPa, then puts into baking oven and vacuumize shaping.In forming process before resin does not solidify, along a direction, unnecessary resin and bubble are scraped product periphery with plastic scrapers.After 0.5-4 hour products solidifying, just can obtain product surface light, without obvious bubble, one side has the large part composite product of complicated shape.
Adopt shaping supporting plate and plastic foil to replace expensive mould, cost is very low; Simple to operate, operation mobility is good, does not need a large amount of manpower and complicated shaping auxiliary equipment; Vacuumize while heat in forming process, and with plastic scrapers, unnecessary resin and bubble are scraped, shaping rear product surface is bright, formation skeleton is obvious, without obvious bubble, back segment is not used to carry out process of spraying paint again, production link shortens, reduce production cost, improve production efficiency, need not to spray paint the pollution that can reduce environment in rear road; Shaping rear plastic foil is attached to product surface, product surface can be protected not to be scratched in rear road machining process, and product surface need not extra pasting protective film, reduces product cost.
Shaping subsidiary materials cost required for the present invention is lower, uses shaping liner plate and plastic foil to replace mould; Finally adopting vacuumizes shaping, unnecessary resin and bubble is scraped in forming process with plastic scrapers, shaping rear product surface light, bubble-free, and to spray paint process without the need to rear road, production cost is low, and environmental pollution is little.Owing to not having large-scale mould, operate also fairly simple, a lot of manpowers and auxiliary equipment, can not reduce production cost and manufacturing expense greatly.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications; these changes and improvements all fall in the claimed scope of the invention, and application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. plastic sheeting replaces a technique for large complicated mould-forming composite material goods, it is characterized in that: described technique comprises the steps:
Step (1): select shaping supporting plate;
Step (2), cleaned out by shaping supporting plate, surface is coated with mould release;
Step (3), paving material; Shaping supporting plate upper berth material after step (2) process, the order of material laying is: the upper surface of shaping supporting plate is followed successively by lower floor's carbon cloth, foam and upper strata carbon cloth from the bottom up;
(4) periphery of the material, completed in step (3) is spread and is inhaled glue felt;
(5), by plastic foil be layered on the surface of the product of the process of step (4), seal with sealing joint strip;
(6), product vacuumizes: product vacuumizes in shaping process, with plastic scrapers, unnecessary resin and bubble scraped product periphery;
(7), product is dried;
(8), finished product is obtained after solidification.
2. plastic sheeting according to claim 1 replaces the technique of large complicated mould-forming composite material goods, it is characterized in that: the shaping supporting plate in step (1) elects safety glass, metallic plate or ganoid plastic plate as.
3. plastic sheeting according to claim 1 replaces the technique of large complicated mould-forming composite material goods, it is characterized in that: step (3) specifically comprises the steps:
Step (301): be layered on by lower floor's carbon cloth in the middle of shaping supporting plate, is then coated in the surface of lower floor's carbon cloth uniformly, resin and lower floor's carbon cloth is fully infiltrated by the resin mixing, be stirred;
Step (302): curved surface foam Digit Control Machine Tool being processed into the one side moulding that to be plane another side be needs, one deck resin is coated with uniformly in the upper and lower surface of foam, then the plane of foam is adjacent to lower floor's carbon cloth, thus foam is layered on lower floor's carbon cloth;
Step (303): the surface resin mixing, be stirred being coated in uniformly upper strata carbon cloth, makes resin and upper strata carbon cloth fully infiltrate;
Step (304): then the curved surface of foam is adjacent to upper strata carbon cloth, thus upper strata carbon cloth is layered on foam.
4. plastic sheeting according to claim 3 replaces the technique of large complicated mould-forming composite material goods, it is characterized in that: described resin is the mixture of one or more in unsaturated-resin, epoxy resin or vinylite.
5. plastic sheeting according to claim 1 replaces the technique of large complicated mould-forming composite material goods, it is characterized in that: inhale glue felt in step (4) and be placed on lower floor's carbon fiber periphery; In step (5), sealing joint strip is attached on the flange of shaping supporting plate, and then sticks plastic film seal; Gap is left between sealing joint strip and suction glue felt.
6. plastic sheeting according to claim 1 replaces the technique of large complicated mould-forming composite material goods, it is characterized in that: in described step (6), product vacuumizes use vacuum pump evacuation, vacuumize later vacuum for more than-0.09MPa.
7. plastic sheeting according to claim 1 replaces the technique of large complicated mould-forming composite material goods, it is characterized in that: in described step (7), product is dried, and concrete bake out temperature is 40-100 DEG C.
8. plastic sheeting according to claim 1 replaces the technique of large complicated mould-forming composite material goods, it is characterized in that: in described step (8), the time range of solidification is 0.5-4 hour.
9. plastic sheeting according to claim 1 replaces the technique of large complicated mould-forming composite material goods, it is characterized in that: described foam is the mixture of one or more in expanded polyester, polyvinyl chloride, acrylonitrile one styrene, Polymethacrylimide, polyurethane.
10. plastic sheeting according to claim 1 replaces the technique of large complicated mould-forming composite material goods, it is characterized in that: the mixture of one or more in polyvinyl chloride, expanded polyester, nylon, polypropylene elected as by described plastic foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510556417.0A CN105109058A (en) | 2015-09-02 | 2015-09-02 | Process for forming composite product through plastic film used for replacing large complex mold |
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| CN201510556417.0A CN105109058A (en) | 2015-09-02 | 2015-09-02 | Process for forming composite product through plastic film used for replacing large complex mold |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729835A (en) * | 2016-03-30 | 2016-07-06 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Integral curing device and method for stiffened wall plate composite structure |
| CN106863841A (en) * | 2017-04-24 | 2017-06-20 | 青岛百适优复合材料制造有限公司 | A kind of composite vacuum assisted resin infusion method |
| WO2017101492A1 (en) * | 2015-12-16 | 2017-06-22 | 上海晋飞新材料科技有限公司 | Process for manufacturing bottom plate of high-speed rail equipment cabin using composite material |
| CN107225775A (en) * | 2016-03-25 | 2017-10-03 | 上海艾郎风电科技发展（集团）有限公司 | Hand pastes technique and the device for it |
| CN108943768A (en) * | 2017-05-26 | 2018-12-07 | 波音公司 | Object flexible vacuum is fixed to complex surface |
| CN109203562A (en) * | 2018-09-20 | 2019-01-15 | 彭灿 | A method of improving binding paper box intensity |
| CN109291308A (en) * | 2017-07-24 | 2019-02-01 | 深圳光启高等理工研究院 | The production method of prepreg |
| CN110803251A (en) * | 2019-12-20 | 2020-02-18 | 杭州友凯船艇有限公司 | Flat plate type composite material rowing boat with balancing device |
| CN113021954A (en) * | 2021-03-22 | 2021-06-25 | 苏州红典新材料科技有限公司 | Large-scale component preparation system of VARTM (vacuum vapor deposition) process |
| US20220111604A1 (en) * | 2020-10-09 | 2022-04-14 | The Boeing Company | Placement and compaction of multiple objects via vacuum heads with floating end effectors |
| US12030266B2 (en) | 2020-03-13 | 2024-07-09 | The Boeing Company | Scrolls that vacuum secure objects to complex surfaces |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017101492A1 (en) * | 2015-12-16 | 2017-06-22 | 上海晋飞新材料科技有限公司 | Process for manufacturing bottom plate of high-speed rail equipment cabin using composite material |
| CN107225775A (en) * | 2016-03-25 | 2017-10-03 | 上海艾郎风电科技发展（集团）有限公司 | Hand pastes technique and the device for it |
| CN105729835A (en) * | 2016-03-30 | 2016-07-06 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Integral curing device and method for stiffened wall plate composite structure |
| CN106863841A (en) * | 2017-04-24 | 2017-06-20 | 青岛百适优复合材料制造有限公司 | A kind of composite vacuum assisted resin infusion method |
| CN108943768B (en) * | 2017-05-26 | 2022-07-29 | 波音公司 | Flexible vacuum attachment of objects to complex surfaces |
| CN108943768A (en) * | 2017-05-26 | 2018-12-07 | 波音公司 | Object flexible vacuum is fixed to complex surface |
| US11654669B2 (en) | 2017-05-26 | 2023-05-23 | The Boeing Company | Flexible vacuum securement of objects to complex surfaces |
| CN109291308A (en) * | 2017-07-24 | 2019-02-01 | 深圳光启高等理工研究院 | The production method of prepreg |
| CN109203562A (en) * | 2018-09-20 | 2019-01-15 | 彭灿 | A method of improving binding paper box intensity |
| WO2021120336A1 (en) * | 2019-12-20 | 2021-06-24 | 杭州友凯船艇有限公司 | Flat-type composite rowboat having balancing device |
| CN110803251A (en) * | 2019-12-20 | 2020-02-18 | 杭州友凯船艇有限公司 | Flat plate type composite material rowing boat with balancing device |
| US12030266B2 (en) | 2020-03-13 | 2024-07-09 | The Boeing Company | Scrolls that vacuum secure objects to complex surfaces |
| US20220111604A1 (en) * | 2020-10-09 | 2022-04-14 | The Boeing Company | Placement and compaction of multiple objects via vacuum heads with floating end effectors |
| US11904558B2 (en) * | 2020-10-09 | 2024-02-20 | The Boeing Company | Placement and compaction of multiple objects via vacuum heads with floating end effectors |
| CN113021954A (en) * | 2021-03-22 | 2021-06-25 | 苏州红典新材料科技有限公司 | Large-scale component preparation system of VARTM (vacuum vapor deposition) process |
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| CB02 | Change of applicant information |
Address after: 201108 Shanghai, Cao Cao Road, No. 13, No. 1, building C1, floor 2, building F1, No. 14, building 1, Minhang District Applicant after: Shanghai Cedar Composites Technology Co., Ltd. Applicant after: Shanghai Jin Fei Polytron Technologies Inc. Address before: 201108 Shanghai, Cao Cao Road, No. 13, No. 1, building C1, floor 2, building F1, No. 14, building 1, Minhang District Applicant before: Shanghai Cedar Composites Technology Co., Ltd. Applicant before: SHANGHAI CEDAR COMPOSITES TECHNOLOGY CO. LTD. |
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Application publication date: 20151202 |
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| RJ01 | Rejection of invention patent application after publication |