CN103817832B - Mould and use the method that this mould carries out vacuum infusion molding - Google Patents
Mould and use the method that this mould carries out vacuum infusion molding Download PDFInfo
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- CN103817832B CN103817832B CN201310450438.5A CN201310450438A CN103817832B CN 103817832 B CN103817832 B CN 103817832B CN 201310450438 A CN201310450438 A CN 201310450438A CN 103817832 B CN103817832 B CN 103817832B
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- 238000000465 moulding Methods 0.000 title claims abstract description 92
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000009755 vacuum infusion Methods 0.000 title claims abstract description 26
- 239000002131 composite material Substances 0.000 claims abstract description 23
- 239000011347 resin Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 150000001875 compounds Chemical class 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004744 fabric Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000003351 stiffener Substances 0.000 claims description 3
- 238000001802 infusion Methods 0.000 abstract description 7
- 230000010412 perfusion Effects 0.000 description 8
- 239000000047 product Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 229920013657 polymer matrix composite Polymers 0.000 description 2
- 239000011160 polymer matrix composite Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 241000937378 Everettia interior Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- -1 and Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of vacuum infusion molding process for compound mould, it is applicable to the sandwich structure composite material of thick size.This mould includes base and molding panel, and wherein, base has center tapped through hole and the step part of cincture drop-center that drop-center connects with drop-center；Molding panel is supported on step part, and molding panel is provided with multiple water conservancy diversion aperture；Inside and outside two seals groove and the multiple edge-wise threads through holes between these sealed grooves it are provided with on step part.The invention still further relates to use the vacuum infusion molding method of above-mentioned mould.Owing to bottom pouring type resin infusion can be used, the dryspot easily occurred in composite inner when effectively eliminating the big thickness of VARI technological forming or sandwich structure composite material；Simultaneously as be provided with multiple water conservancy diversion aperture on molding panel, improve the surface quality of goods.
Description
Technical field
The invention belongs to a kind of novel die technology for polymer matrix composites liquid molding, relate to
And the structure design of a kind of big thickness or sandwich structure composite material vacuum perfusion process mould.
Background technology
Mould be composite product molding main technique equipment, in order to determine article shape,
Control outer rim and obtain good surface quality.Owing to completing being solidified into of composite on mould
Type, so the quality on composite product that manufactures and designs of composite material shaping mould affects relatively big,
Require the reasonable in design of mould.The structure of composite material shaping mould along with process change and
Change, representational have vacuum assisted resin perfusion (Vacuum Assisted Resin Infusion,
I.e. VARI) technique.VARI technique is widely used on aircraft, unmanned plane, such as the illiteracy of big aircraft
Skin, swing spar etc..At present, VARI technique is utilized to prepare big thickness or sandwich structure composite wood
Common single flat plate mold is often used during material, at preform upper and lower surface lay grooves,
From up to down carried out resin infusion by one end, the shortcoming of this mode is, owing to preform is upper and lower
Surface lay grooves, the air spots of the composite product of institute's molding, and resin are difficult to
Penetrate into preform lower surface, thus cause inside that the defects such as dry spot easily occur.
Summary of the invention
Present invention aim to address existing polymer matrix composites liquid molding mould therefor not
Foot, proposes a kind of vacuum infusion molding process for compound use being applicable to big thickness, sandwich structure composite material
Mould and use the vacuum infusion molding method of this mould, thus surface when can eliminate forming composite
The most gentle internal dryspot occurred.
To this end, according to an aspect of the present invention, it is provided that a kind of vacuum infusion molding process for compound mould, suitable
Sandwich structure composite material for thick size, it is characterised in that described mould includes:
Base, it has center tapped through hole, the Yi Jihuan that drop-center connects with described drop-center
Step part around described drop-center；
Molding panel, it is supported on described step part, and described molding panel is provided with multiple water conservancy diversion
Aperture；
Wherein, described step part is provided with inside and outside two seals groove and to be positioned at described inside and outside twice close
Multiple edge-wise threads through holes between envelope groove.
In this aspect of the invention, mould can be carried out owing to being provided with center tapped through hole on base
Bottom pouring type resin infusion from the bottom up, this bottom pouring type resin infusion mode is more existing from top to bottom
Resin infusion mode is more beneficial for the whole composite of resin penetration, such that it is able to effectively eliminate VARI work
The dryspot easily occurred in composite inner when the big thickness of skill molding or sandwich structure composite material；
Simultaneously as be provided with multiple water conservancy diversion aperture on molding panel, resin can be good by these water conservancy diversion apertures
Penetrate into composite, thus avoid the big thickness of VARI technological forming or sandwich structure composite material
The defect that time bottom, application goods bottom surface caused by grooves is uneven, improves the surface matter of goods
Amount.
Preferably, form one between described molding panel and the described drop-center of described base to be used for filling
The cavity of note resin.
Preferably, it is embedded with sealing joint strip, described molding panel and institute in described inside and outside two seals groove
State base to be fixed together by means of described edge-wise threads through hole evacuation.Led to by edge-wise threads
Hole is to evacuation between inside and outside two seals groove, and being not required to extra securing member will be fixed to by molding panel
On base, thus avoid the impact using securing member may profile flatness be produced.
Preferably, described molding panel is stiffener plate.
Preferably, the middle body of described molding panel is curved surface and peripheral portion is plane.Middle body
For the plastic composite material preformed body having curved surface requirement of curved surface, and peripheral portion is plane can realize
The evacuation of molding panel and base is fixed.
Preferably, also including multiple guide pillar, its one end is fixed on the basal surface of described drop-center, separately
One end coordinates with the basal surface of described molding panel to support described molding panel.Guide pillar can prop up further
Support molding panel thus prevent it in molding process because of be heated or pressurized and deform.
Preferably, the plurality of water conservancy diversion aperture is evenly distributed on described molding panel.
Preferably, the plurality of water conservancy diversion aperture is circular hole.
According to another aspect of the present invention, it is provided that the above-mentioned vacuum infusion molding process for compound mould of a kind of use
The method carrying out vacuum infusion molding, it is characterised in that comprise the steps:
Lay ground floor release cloth, preform, the second pull-up successively on the molding panel of described mould
Mould cloth, exhaust tube also seal with sealing joint strip and vacuum bag；
Described exhaust tube is connected with external vacuum pump with the cavity evacuation to described mould；
Screw thread vacuum adapter one end is connected the other end with the center tapped through hole on the base of described mould
It is connected with resin syringe thus after described vacuum step, carries out vacuum infusion molding.
Preferably, described method also includes by means of long bolt through the edge-wise threads through hole on described mould
By described molding panel upwards jack-up to carry out the step of the demoulding.The setting of edge-wise threads through hole not only can be used
Realize evacuation thus molding panel is fixed to base, and can be used to coordinate with long bolt help de-
Mould.
By with reference to embodiment disclosed below, these and other aspects of the present invention will obtain
To clearly illustrating.
Accompanying drawing explanation
The structurally and operationally mode of the present invention and further purpose and advantage will be by below in conjunction with attached
The description of figure is better understood, wherein, and the element that identical reference marker mark is identical:
Fig. 1 shows according to the preferred embodiment of the present invention after vacuum perfusion process die assembly
Top view；
Fig. 2 be in Fig. 1 vacuum perfusion process mould along the partial sectional view of AA line；
Fig. 3 is the schematic diagram of the base of vacuum perfusion process mould in Fig. 1；
Fig. 4 is the schematic diagram of the molding panel of vacuum perfusion process mould in Fig. 1；
Fig. 5 is that the vacuum using vacuum perfusion process mould according to the preferred embodiment of the present invention fills
The flow chart of injection forming method；
Fig. 6 is the technique encapsulation schematic diagram of vacuum infusion molding method in application drawing 5.
Description of reference numerals
100 priming by vacuum moulds
1 base
11 drop-center 12 center tapped through holes
Sealed groove in 13 step parts 14
15 outer seal groove 16 edge-wise threads through holes
2 molding panels
21 water conservancy diversion apertures
101 ground floor release cloth 102 preforms
103 second layer release cloth 104 exhaust tubes
105 sealing joint strip 106 vacuum bags
107 screw thread vacuum adapters
Detailed description of the invention
As requested, the detailed description of the invention of the present invention will be disclosed here.It is to be understood, however, that
Embodiments disclosed herein is only the exemplary of the present invention, and it can be presented as various shape
Formula.Therefore, the detail disclosed here is not to be considered as limiting, and is merely possible to right and wants
The basis asked and as instruct those skilled in the art in reality any appropriate in the way of different
The representational basis of the ground application present invention, including using various features described herein and combining here
It is likely not to have the feature clearly disclosed.
As shown in Figures 1 to 4, use according to the vacuum infusion molding process for compound of the preferred embodiment of the present invention
Mould 100 includes base 1 and molding panel 2.It is high-visible from Fig. 2 and Fig. 3, during base 1 has
Centre groove 11 connects with drop-center 11 and is suitable to the center screw thread being connected with external screw-thread vacuum adapter
Through hole 12 and the step part 13 around drop-center 11.High-visible from Fig. 2 and Fig. 4, become
Profile plate 2 is supported on step part 13, and is provided with multiple water conservancy diversion aperture 21 on molding panel 2,
These water conservancy diversion apertures 21 are preferably circular, and are preferably evenly distributed through on molding panel 2.Work as forming surface
When plate 2 and base 1 are assembled together, with regard to shape between the drop-center 11 of molding panel 2 and base 1
Become one for the cavity irrigating resin.Due to the setting of center tapped through hole 12, mould 100 can be adopted
Carrying out resin infusion with bottom pouring type, this mode is conducive to permeating whole preform, thus can be used for big
Thickness, the vacuum infusion molding process for compound of sandwich structure composite material, and, resin is also by forming surface
Water conservancy diversion aperture 21 on plate 2 permeates, so that the product surface after molding is smooth, homogeneous.
The most as shown in Figures 2 and 3, step part 13 is provided with inside and outside two seals groove, i.e. interior
Sealed groove 14 and outer seal groove 15, and shape between interior sealed groove 14 and outer seal groove 15
Become to have edge-wise threads through hole 16.In the present embodiment, step part 13 is provided with four edges altogether
Tapped through hole 16, they are uniformly distributed along the periphery of interior sealed groove 14.Preferably, interior sealed groove
14 and outer seal groove 15 in be all embedded with sealing joint strip (not shown).By edge-wise threads through hole 16
Evacuation, makes to become between interior sealed groove 14 and outer seal groove 15 vacuum state, thus by forming surface
Plate 2 and base 1 are fixed together.Setting due to edge-wise threads through hole 16, it is no longer necessary to any volume
Molding panel 2 can be fixed on base 1 by outer securing member.
In the present embodiment, it should be appreciated that the size of sealing joint strip can be according to inside and outside two seals
The size of groove adjusts accordingly；Base 1, molding panel 2 and base 1 and molding panel 2
Between can adjust accordingly according to actual needs for the size of the cavity etc. that irrigates resin；Water conservancy diversion aperture
The size of 21 and arrangement adjust accordingly also dependent on being actually needed.It is to say, due to actually used
In, product size inconsistent, the size of each ingredient of mould, shape and arrangement all can bases
Needs adjust accordingly.But no matter how the size of mould 100, shape adjust, all should be at this
Within bright protection domain.
In addition, it is necessary to explanation, in the present embodiment, molding panel 2 is stiffener plate.Separately
In outer embodiment, if it is desired, i.e. when goods need to have curved surface, molding panel 2 can also
Peripheral portion is plane for curved surface to be arranged with centre part.Middle body is that curved surface can meet goods song
Face requirement, and peripheral portion is plane that the evacuation between molding panel 2 and base 1 can be facilitated to fix.
Preferably, in the above-described embodiment, it is also possible to include multiple for supporting in molding panel 2
The guide pillar (not shown) of centre part.These guide pillar one end can be fixed to the drop-center 11 of base 1
On basal surface, the other end coordinates with the basal surface of molding panel 2 to support molding panel 2.Guide pillar is permissible
Molding panel 2 is played the effect of support further, thus prevents molding panel 2 at molding process
Middle because of be heated or pressurized and deform.It is to say, when the profile of preformed member is that curvature is relatively big or curvature becomes
When changing bigger curved surface, can be according to positive position fixing difference in the drop-center 11 of base 1
Height and difformity coordinate the guide pillar in face, are supported molding panel 2.
Below in conjunction with Fig. 5 and Fig. 6 to using vacuum infusion molding process for compound mould to carry out vacuum infusion molding
The preferred implementation of method make description.In the present embodiment, the method comprises the steps:
S1: lay ground floor release cloth 101, preform successively on the molding panel 2 of mould 100
102, second layer release cloth 103, exhaust tube 104 seal 106 with sealing joint strip 105 and vacuum bag,
As shown in Figure 6；
S2: exhaust tube 104 is connected with external vacuum pump (not shown) and takes out with the cavity to mould 100
Vacuum, wherein bleeds direction as shown in arrow V in Fig. 6；
S3: by the center tapped through hole 11 on the base 1 of screw thread vacuum adapter 107 one end and mould 100
The connection other end is connected with resin syringe thus carries out vacuum infusion molding after vacuum step S2,
Wherein perfusion direction is as shown in arrow R in Fig. 6.
S4: by means of long bolt through the edge-wise threads through hole 16 on mould 100 by molding panel 2 to
Upper jack-up is to carry out the demoulding.
Spread between molding panel 2 and preform it should be appreciated that can save in above-mentioned steps S1
The release cloth put, because releasing agent can be scribbled by molding panel 2 upper surface to realize the demoulding.
Using said method and mould to prepare big thickness and foam sandwich construction composite, surface quality is bright
Aobvious raising, internal without dryspot.
The technology contents of the present invention and technical characterstic have revealed that as above, it being understood, however, that the present invention's
Under creative ideas, said structure and shape can be made various changes and improve by those skilled in the art,
Including individually disclosing here or the combination of claimed technical characteristic, it will be apparent that include its of these features
Its combination.These deformation and/or combination each fall within technical field involved in the present invention, and fall into this
Bright scope of the claims.It should be noted that by convention, claim uses single unit
Part is intended to include one or more such element.Additionally, should be by any ginseng in claims
Examine marker configurations for limiting the scope of the present invention.
Claims (9)
1. a vacuum infusion molding process for compound mould, it is adaptable to the sandwich structure composite material of thick size,
It is characterized in that, described mould includes:
Base, it has center tapped through hole, the Yi Jihuan that drop-center connects with described drop-center
Step part around described drop-center；
Molding panel, it is supported on described step part, and described molding panel is provided with multiple water conservancy diversion
Aperture；
Wherein, described step part is provided with inside and outside two seals groove and to be positioned at described inside and outside twice close
Multiple edge-wise threads through holes between envelope groove；
Wherein, the middle body of described molding panel is curved surface and peripheral portion is plane；
Wherein, described mould also includes multiple guide pillar, and its one end is fixed to the basal surface of described drop-center
On, the other end coordinates with the basal surface of described molding panel to support described molding panel.
2. according to the vacuum infusion molding process for compound mould described in claim 1, it is characterised in that described
One is formed for the cavity irrigating resin between molding panel and the described drop-center of described base.
3. according to the vacuum infusion molding process for compound mould described in claim 1, it is characterised in that described
Be embedded with in inside and outside two seals groove sealing joint strip, described molding panel and described base by means of
Described edge-wise threads through hole evacuation and be fixed together.
4. according to the vacuum infusion molding process for compound mould described in claim 1, it is characterised in that described
Molding panel is stiffener plate.
5. according to the vacuum infusion molding process for compound mould described in claim 1, it is characterised in that described
Multiple water conservancy diversion apertures are evenly distributed on described molding panel.
6. according to the vacuum infusion molding process for compound mould described in claim 1, it is characterised in that described
Multiple water conservancy diversion apertures are circular hole.
7. the vacuum of the vacuum infusion molding process for compound mould that a kind uses described in any one of claim 1-6
Pouring and molding method, it is characterised in that comprise the steps:
S1: on the molding panel of described mould successively lay ground floor release cloth, preform, second
Layer release cloth, exhaust tube also seal with sealing joint strip and vacuum bag；
S2: described exhaust tube is connected with external vacuum pump with the cavity evacuation to described mould；
S3: screw thread vacuum adapter one end is connected another with the center tapped through hole on the base of described mould
End is connected with resin syringe thus carries out vacuum infusion molding after described vacuum step S2；
Wherein, the middle body of described molding panel is curved surface and peripheral portion is plane；
Wherein, described mould also includes multiple guide pillar, and its one end is fixed to the basal surface of described drop-center
On, the other end coordinates with the basal surface of described molding panel to support described molding panel.
Vacuum infusion molding method the most according to claim 7, it is characterised in that described step S1
It is additionally included in lay release cloth between described molding panel and described preform.
Vacuum infusion molding method the most according to claim 7, it is characterised in that described method is also
Including passing the edge-wise threads through hole on described mould by means of long bolt by described molding panel upwards jack-up
To carry out step S4 of the demoulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450438.5A CN103817832B (en) | 2013-09-26 | 2013-09-26 | Mould and use the method that this mould carries out vacuum infusion molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450438.5A CN103817832B (en) | 2013-09-26 | 2013-09-26 | Mould and use the method that this mould carries out vacuum infusion molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103817832A CN103817832A (en) | 2014-05-28 |
| CN103817832B true CN103817832B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310450438.5A Active CN103817832B (en) | 2013-09-26 | 2013-09-26 | Mould and use the method that this mould carries out vacuum infusion molding |
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| CN (1) | CN103817832B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097329B (en) * | 2014-06-16 | 2016-09-07 | 中国商用飞机有限责任公司 | A kind of method in composite foam sandwich construction shaping, foamed material being carried out resin infusion pretreatment |
| CN108904878B (en) * | 2018-06-22 | 2022-01-07 | 朱波 | Preparation and structure of thermosetting carbon fiber composite artificial limb |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631659A (en) * | 2005-01-07 | 2005-06-29 | 北京玻钢院复合材料有限公司 | Vacuum auxiliary resin penetration process for composite material and mould therefor |
| CN101708658A (en) * | 2009-12-10 | 2010-05-19 | 连云港中复连众复合材料集团有限公司 | Bottom pouring type vacuum perfusion process |
| WO2012026980A2 (en) * | 2010-08-23 | 2012-03-01 | Materia, Inc. | Vartm flow modifications for low viscosity resin systems |
| CN102582092A (en) * | 2012-03-05 | 2012-07-18 | 株洲时代新材料科技股份有限公司 | Vacuum infusion molding method for thick-size carbon fiber product |
| CN203077625U (en) * | 2013-01-16 | 2013-07-24 | 江苏新誉重工科技有限公司 | Production device of standard vacuum-perfusion glass fiber reinforced plastics test panel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2434447A1 (en) * | 2003-06-27 | 2004-12-27 | Eduardo Ruiz | Manufacture of composites through a flexible injection process using a double-cavity or multi-cavity mold |
-
2013
- 2013-09-26 CN CN201310450438.5A patent/CN103817832B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631659A (en) * | 2005-01-07 | 2005-06-29 | 北京玻钢院复合材料有限公司 | Vacuum auxiliary resin penetration process for composite material and mould therefor |
| CN101708658A (en) * | 2009-12-10 | 2010-05-19 | 连云港中复连众复合材料集团有限公司 | Bottom pouring type vacuum perfusion process |
| WO2012026980A2 (en) * | 2010-08-23 | 2012-03-01 | Materia, Inc. | Vartm flow modifications for low viscosity resin systems |
| CN102582092A (en) * | 2012-03-05 | 2012-07-18 | 株洲时代新材料科技股份有限公司 | Vacuum infusion molding method for thick-size carbon fiber product |
| CN203077625U (en) * | 2013-01-16 | 2013-07-24 | 江苏新誉重工科技有限公司 | Production device of standard vacuum-perfusion glass fiber reinforced plastics test panel |
Non-Patent Citations (1)
| Title |
|---|
| 《真空辅助树脂注射成型(VARI)研究进展》;赵晨辉等;《玻璃钢/复合材料》;20090131(第1期);第80-84页 * |
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| CN103817832A (en) | 2014-05-28 |
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