CN105109060A - Vacuum assisted resin injection process for preparing fiber composite material - Google Patents
Vacuum assisted resin injection process for preparing fiber composite material Download PDFInfo
- Publication number
- CN105109060A CN105109060A CN201510595541.8A CN201510595541A CN105109060A CN 105109060 A CN105109060 A CN 105109060A CN 201510595541 A CN201510595541 A CN 201510595541A CN 105109060 A CN105109060 A CN 105109060A
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- China
- Prior art keywords
- guiding
- fiber preform
- release cloth
- vacuum
- mould
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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
Abstract
The invention discloses a vacuum assisted resin injection process for preparing a fiber composite material. When a center point injection mode is adopted, a plurality of layers of soft materials are laid under a glue injection seat; when a linear injection mode is adopted, a pipeline is laid among products for reducing the distance of a flowing channel, a glue guide pipe is wrapped with a flow guide net for preventing the glue guide pipe from making indentations on the surfaces of the products, the glue guide pipe is separated from the surface of a prefabricated part, direct contact is avoided, and the height between the glue guide pipe and the prefabricated part is approximately 10-50 mm; at an extracting opening, a layer of narrow strong-core felt strip wrapped with demolding cloth serves as a gas guide channel, the gas guide channel is also separated from the edge of the prefabricated body, and the height between the gas guide channel and the prefabricated body is approximately 50-100 mm. By means of the process, resin glue volume and bubbles in laminated plates can be reduced, and the voidage is reduced.
Description
Technical field
The present invention relates to a kind of vacuum guiding and forming technique of fibrous material.
Background technology
Vacuum imports shaping (VacuumAssistedResinInjection, be called for short VARI) be a kind of low cost process preparing composite, reinforcing material (glass fibre " is done " on mould upper berth, carbon fiber, Sandwich materials etc.), then spread vacuum bag, and the vacuum of extracting out in system, in mold cavity, form a negative pressure, the pressure utilizing vacuum to produce is pressed into resin in fibrage by the pipeline overlay, and allows resin infiltrate reinforcing material and is finally full of whole mould and obtains required product.Adopt in this technical process, the key factor affecting product properties and apparent mass is exactly whether various auxiliary material lay layouts on precast body fiber are reasonable.The effect of flow-guiding screen is the water conservancy diversion speed accelerating resin, and the resin guide time has directive significance to the rational resin of selection, because must within the gel time of resin, resin guide completes and complete wetting.The air guide channel of bleeding point is particularly important, it can take the bubble in resin importing process and inside fiber preform away, if emptying standoff effects mechanical property can not can be formed in goods, if do not control the resin gel quantity of air guide port simultaneously, resin can be siphoned away in a large number and form poor glue defect.Adopt when central point or line injection and can form impression in the position of injecting glue pipeline or injecting glue seat, affect apparent mass and performance.
Summary of the invention
The object of this invention is to provide a kind of vacuum guiding and forming technique preparing fibrous composite, for solving the defect existed in prior art, ensureing mechanical property and the surface quality of composite product.
Technical scheme provided by the invention is:
A kind of vacuum guiding and forming technique preparing fibrous composite, fiber preform laid by mould, fiber preform arranges release cloth, release cloth arranges flow-guiding screen, flow-guiding screen arranges injected rubber hose, injected rubber hose lower end is provided with injecting glue seat, flexible material is laid below injecting glue seat, finally on mould, lay vacuum bag by fiber preform, release cloth, flow-guiding screen and injected rubber hose encase, at the bleeding point place of vacuum bag side, release cloth is wrapped up one deck strong core felt fillet as air guide channel, and be connected with vavuum pump, height between strong core felt fillet and fiber preform is 50-100mm.
Described flexible material selects glass mat or strong core felt.
Between described vacuum bag and mould, sealing joint strip is set.
A kind of vacuum guiding and forming technique preparing fibrous composite, fiber preform laid by mould, fiber preform arranges release cloth, release cloth arranges flow-guiding screen, parcel injected rubber hose in the middle of flow-guiding screen, height between injected rubber hose and fiber preform is 10-50mm, finally on mould, lay vacuum bag by fiber preform, release cloth, flow-guiding screen and injected rubber hose encase, at the bleeding point place of vacuum bag side, release cloth is wrapped up one deck strong core felt fillet as air guide channel, and be connected with vavuum pump, height between strong core felt fillet and fiber preform is 50-100mm.
Between described vacuum bag and mould, sealing joint strip is set.
Beneficial effect of the present invention:
Vacuum guiding and forming technique provided by the invention, can control resin gel quantity, reduces resin and flows out, increase bleeding point passage, avoid the defect at injecting glue point place simultaneously, final mechanical property and the surface quality ensureing composite product.
Accompanying drawing explanation
Fig. 1 is the injecting glue position view one (central point injection) of present invention process.
Fig. 2 is the injecting glue position view two (medium line injection) of present invention process.
Fig. 3 is the bleeding point position view of present invention process.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As Fig. 1, the present embodiment is to provide the vacuum guiding and forming technique preparing fibrous composite adopting central point injection, mould 1 is laid fiber preform 2, fiber preform 2 is arranged release cloth 3, release cloth 3 is arranged flow-guiding screen 4, flow-guiding screen 4 is arranged injected rubber hose 5, injected rubber hose 5 lower end is provided with injecting glue seat 6, injecting glue seat 6 lays flexible material 7 below, finally on mould 1, lay vacuum bag 8 by fiber preform 2, release cloth 3, the gum-injecting port of flow-guiding screen 4 and injected rubber hose 5 encases, at the bleeding point place of vacuum bag 8 side, release cloth 3 is wrapped up one deck strong core felt fillet 9 as air guide channel, and be connected with vavuum pump by exhaust tube 10, height between strong core felt fillet 9 and fiber preform 2 is 50-100mm.Flexible material selects glass mat or strong core felt.Sealing joint strip 11 is set between vacuum bag 8 and mould 1, by sealing joint strip 11, vacuum bag is sealed.
As Fig. 2, when adopting medium line injection, in order to reduce runner distance, injected rubber hose 5 is laid in the middle of fiber preform 2, in order to avoid injected rubber hose 5 is in fiber preform 2 surface indentation, injected rubber hose flow-guiding screen is wrapped up, be separated with precast body surface, avoid direct contact, be highly about 10-50mm between the two; As Fig. 3, at bleeding point place, release cloth 3 is wrapped up one deck strong core felt fillet 9 as air guide channel, and be connected with vavuum pump with exhaust tube 10, also with precast body edge separation, be highly about 50-100mm, the amount that resin is pumped can be reduced, better the bubble in laminate is taken away, reduce voidage.
Claims (5)
1. prepare the vacuum guiding and forming technique of fibrous composite for one kind, it is characterized in that, fiber preform laid by mould, fiber preform arranges release cloth, release cloth arranges flow-guiding screen, flow-guiding screen arranges injected rubber hose, injected rubber hose lower end is provided with injecting glue seat, flexible material is laid below injecting glue seat, finally on mould, lay vacuum bag by fiber preform, release cloth, flow-guiding screen and injected rubber hose encase, at the bleeding point place of vacuum bag side, release cloth is wrapped up one deck strong core felt fillet as air guide channel, and be connected with vavuum pump, strong core felt fillet and fibre preforms height are 50-100mm.
2. a kind of vacuum guiding and forming technique preparing fibrous composite according to claim 1, is characterized in that, described flexible material selects glass mat or strong core felt.
3. a kind of vacuum guiding and forming technique preparing fibrous composite according to claim 1, is characterized in that, arrange sealing joint strip between described vacuum bag and mould.
4. prepare the vacuum guiding and forming technique of fibrous composite for one kind, it is characterized in that, fiber preform laid by mould, fiber preform arranges release cloth, release cloth arranges flow-guiding screen, parcel injected rubber hose in the middle of flow-guiding screen, height between injected rubber hose and fiber preform is 10-50mm, finally on mould, lay vacuum bag by fiber preform, release cloth, flow-guiding screen and injected rubber hose encase, at the bleeding point place of vacuum bag side, release cloth is wrapped up one deck strong core felt fillet as air guide channel, and be connected with vavuum pump, strong core felt fillet and fibre preforms height are 50-100mm.
5. a kind of vacuum guiding and forming technique preparing fibrous composite according to claim 4, is characterized in that, arrange sealing joint strip between described vacuum bag and mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510595541.8A CN105109060A (en) | 2015-09-17 | 2015-09-17 | Vacuum assisted resin injection process for preparing fiber composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510595541.8A CN105109060A (en) | 2015-09-17 | 2015-09-17 | Vacuum assisted resin injection process for preparing fiber composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105109060A true CN105109060A (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510595541.8A Pending CN105109060A (en) | 2015-09-17 | 2015-09-17 | Vacuum assisted resin injection process for preparing fiber composite material |
Country Status (1)
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| CN (1) | CN105109060A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563855A (en) * | 2016-01-27 | 2016-05-11 | 江苏恒神股份有限公司 | Novel device and technology for manufacturing ultra-thick composite plate by means of vacuum infusion |
| CN106182806A (en) * | 2016-07-11 | 2016-12-07 | 威海光威复合材料股份有限公司 | The preparation method of fibre reinforced composites crossbeam |
| CN106641578A (en) * | 2016-12-23 | 2017-05-10 | 江苏玖尚新材料有限公司 | Seamless installation method of pipeline external protective layer |
| CN107635755A (en) * | 2015-03-06 | 2018-01-26 | 布勒特耶自动控制设备有限责任公司 | System for processing fibre-composite component |
| CN112318894A (en) * | 2020-09-02 | 2021-02-05 | 广东众森实业发展有限公司 | Method for producing product by vacuum leading-in process and product |
| CN113524722A (en) * | 2021-07-27 | 2021-10-22 | 中航西安飞机工业集团股份有限公司 | Composite material hat-shaped reinforced wall plate VARI forming resin flow infiltration device and method |
| CN114083811A (en) * | 2021-10-20 | 2022-02-25 | 山东非金属材料研究所 | Integrated forming method for multi-surface complex composite shell containing boss |
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| CN102166826A (en) * | 2011-01-19 | 2011-08-31 | 中国科学院宁波材料技术与工程研究所 | Forming process of fiber reinforced thermoplastic composite material |
| CN102328441A (en) * | 2011-09-30 | 2012-01-25 | 天津德风科技有限公司 | Process for producing glass reinforced plastic through strong core mat vacuum infusion |
| CN102501394A (en) * | 2011-11-22 | 2012-06-20 | 上海沥高科技有限公司 | Vacuum infusion molding process for compound material and flow guide net thereof |
| CN104015375A (en) * | 2014-06-04 | 2014-09-03 | 洛阳双瑞风电叶片有限公司 | Filling molding method of large-thickness area composite product |
| CN104527094A (en) * | 2014-12-16 | 2015-04-22 | 镇赉新源复合材料科技有限公司 | Vacuum bag traceless pressing molding process and vacuum bag traceless pressing molding device of wind generating set glass fiber reinforced plastic part |
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2015
- 2015-09-17 CN CN201510595541.8A patent/CN105109060A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102166826A (en) * | 2011-01-19 | 2011-08-31 | 中国科学院宁波材料技术与工程研究所 | Forming process of fiber reinforced thermoplastic composite material |
| CN102328441A (en) * | 2011-09-30 | 2012-01-25 | 天津德风科技有限公司 | Process for producing glass reinforced plastic through strong core mat vacuum infusion |
| CN102501394A (en) * | 2011-11-22 | 2012-06-20 | 上海沥高科技有限公司 | Vacuum infusion molding process for compound material and flow guide net thereof |
| CN104015375A (en) * | 2014-06-04 | 2014-09-03 | 洛阳双瑞风电叶片有限公司 | Filling molding method of large-thickness area composite product |
| CN104527094A (en) * | 2014-12-16 | 2015-04-22 | 镇赉新源复合材料科技有限公司 | Vacuum bag traceless pressing molding process and vacuum bag traceless pressing molding device of wind generating set glass fiber reinforced plastic part |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107635755A (en) * | 2015-03-06 | 2018-01-26 | 布勒特耶自动控制设备有限责任公司 | System for processing fibre-composite component |
| CN107635755B (en) * | 2015-03-06 | 2021-02-02 | 布勒特耶自动控制设备有限责任公司 | System for processing fiber composite components |
| CN105563855A (en) * | 2016-01-27 | 2016-05-11 | 江苏恒神股份有限公司 | Novel device and technology for manufacturing ultra-thick composite plate by means of vacuum infusion |
| CN106182806A (en) * | 2016-07-11 | 2016-12-07 | 威海光威复合材料股份有限公司 | The preparation method of fibre reinforced composites crossbeam |
| CN106641578A (en) * | 2016-12-23 | 2017-05-10 | 江苏玖尚新材料有限公司 | Seamless installation method of pipeline external protective layer |
| CN112318894A (en) * | 2020-09-02 | 2021-02-05 | 广东众森实业发展有限公司 | Method for producing product by vacuum leading-in process and product |
| CN113524722A (en) * | 2021-07-27 | 2021-10-22 | 中航西安飞机工业集团股份有限公司 | Composite material hat-shaped reinforced wall plate VARI forming resin flow infiltration device and method |
| CN114083811A (en) * | 2021-10-20 | 2022-02-25 | 山东非金属材料研究所 | Integrated forming method for multi-surface complex composite shell containing boss |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151202 |
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| RJ01 | Rejection of invention patent application after publication |