CN104139529A - Sandwiched composite material forming method - Google Patents
Sandwiched composite material forming method Download PDFInfo
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- CN104139529A CN104139529A CN201410290346.XA CN201410290346A CN104139529A CN 104139529 A CN104139529 A CN 104139529A CN 201410290346 A CN201410290346 A CN 201410290346A CN 104139529 A CN104139529 A CN 104139529A
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- pellicle
- composite material
- forming method
- blank
- sandwich structure
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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
- B29C70/36—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 impregnating by casting, e.g. vacuum casting
Abstract
The invention belongs to the technical field of composite materials. A vacuum auxiliary resin filling process is adopted and a semipermeable membrane is utilized to exhaust air and volatile matter in a prefabricated member. The invention relates to a sandwiched composite material forming method. The method adopts the vacuum auxiliary filling process for forming and comprises the steps of laying a blanking and guiding system, injecting resin, and solidifying for forming. The forming method is characterized in that the blanking and guiding system is provided with a degassing region 1 and a semipermeable membrane, wherein the semipermeable membrane is arranged at the bottom of a panel blank 7 and completely and partially covers the end surface of an exhaust end of a blank, and the degassing region 1 and the semipermeable membrane are partially overlapped. The forming process has the advantages of low material consumption, high degassing efficiency and simple procedures, and can effectively ensure the quality of the sandwiched composite material. The forming method is suitable for preparing a material adopting a fiber fabric as a reinforcing material of a surface plate and a back plate and adopting a rigid material which does not absorb glue as a sandwiched material, and is particularly suitable for preparing small material blocks with sandwiched materials such as ceramics, cork wood and closed-cell foams or a material with holes in the whole plane.
Description
Technical field
The invention belongs to technical field of composite materials, relate to Composites Molding Techniques, particularly sandwich structure composite material molding component technology.
Background technology
The processing of fiber reinforced resin based sandwich structure composite material adopts hand paste, mold pressing, autoclave molding or vacuum assisted resin instillation process conventionally.Wherein, the negative pressure of vacuum of utilizing vacuum assisted resin instillation process realizes the dipping of resin in fiber and fabric thereof, and under vacuum pressure curing molding, have that former is simple, low cost of manufacture, feature that product voidage is low, the solvent-free release of this technique, be a kind of green manufacturing technique, in national defence and all fields of national economy, be widely used.
At present, application RTM or VARI technique are prepared sandwich structure composite material two kinds of methods, a kind of is to adopt " multistep processes " moulding, be about to pure fibre reinforced composites panel and the independent moulding of backboard of sandwich structure both sides, and then with adhesive, panel, sandwich structure and backboard carried out to bonding forming.Another kind is " one-step method " moulding, according to traditional vacuum assisted resin instillation process, upside at composite material prefabricated component is laid permeable medium and demoulding medium, this technique is the less sandwich structure composite material of plastic sandwich material piece size only, when preparing the larger-size sandwich structure composite material of sandwich material piece, its back side usually occurs that resin impregnated is insufficient, dry spot or short circuit phenomenon, causes sandwich structure composite material mass defect even to manufacture failure.
CN 1915650 has introduced a kind of vacuum forming technique of glass fiber reinforced plastics composite material sandwich structure part, first prepare composite skin, internal layer and sandwich layer, with adhesive, three is carried out to bonding formation composite material prefabricated component again, use upper and lower matched moulds that composite material prefabricated component is cured under negative pressure of vacuum.
CN 101352926 has introduced a kind of vacuum auxiliary molding technique of produced by large-sized sandwich composite material, mainly to slot on light foam, foam after fluting is placed in the middle of fiber preform, by slotting resin impregnated to fabric, complete the preparation of core filled composite material product.
For laying flow guide system at sandwich structure composite material prefabricated component upside, the process that downside laying pellicle is realized the manufacture of sandwich structure composite material there is no report at present both at home and abroad.
Summary of the invention
The object of the present invention is to provide a kind of processing method of large-scale sandwich structure composite material, improve the reliability of sandwich structure composite material.
The object of the present invention is achieved like this, adopt vacuum assisted resin instillation process, in routine, lay on the basis of flow guide system, blank downside is laid pellicle, extracts continuously air and volatile matter in prefabricated component out, by the gas emptying in " injecting glue dead band ", realize effective importing of resin, evenly dipping, avoids sandwich material starved defect, improves product quality and production efficiency.
The sandwich structure composite material forming method the present invention relates to, adopt the moulding of vacuum assisted resin instillation process, comprise the processes such as base and flow guide system laying, resin injecting glue, curing molding, it is characterized in that: described flow guide system is with degas zone 1, base and flow guide system also comprise pellicle 2, pellicle is placed in panel blank 7 bottoms all or part of covering blank exhaust end end face, and degas zone 1 partly overlaps with pellicle, and laying structure as shown in Figures 1 and 2.
The sandwich structure composite material forming method the present invention relates to, adopt the moulding of vacuum assisted resin instillation process, comprise the processes such as base and flow guide system laying, resin injecting glue, curing molding, it is characterized in that: base and flow guide system also comprise pellicle, degas zone 1 partly overlaps with pellicle 2, degas zone is placed in the pellicle lower floor of exhaust end one side panel blank bottom, and with the overlapping 10mm～30mm of pellicle, structure as shown in Figure 1.
The sandwich structure composite material forming method the present invention relates to, adopt the moulding of vacuum assisted resin instillation process, comprise the processes such as base and flow guide system laying, resin injecting glue, curing molding, it is characterized in that: base and flow guide system also comprise pellicle, degas zone 1 partly overlaps with pellicle 2, the pellicle of degas zone and blank exhaust end end face partly overlaps, and degas zone is not higher than pellicle height, and structure as shown in Figure 2.
The sandwich structure composite material forming method the present invention relates to, adopt the moulding of vacuum assisted resin instillation process, comprise the processes such as base and flow guide system laying, resin injecting glue, curing molding, it is characterized in that: base and flow guide system also comprise pellicle, pellicle is can demoulding medium.
The sandwich structure composite material forming method the present invention relates to, adopt the moulding of vacuum assisted resin instillation process, comprise the processes such as base and flow guide system laying, resin injecting glue, curing molding, it is characterized in that: base and flow guide system also comprise pellicle, in blank exhaust end end, pellicle width is identical with prefabricated component width, is highly not less than sandwich structure layer 6, in other direction, pellicle size is than the monolateral large 20mm～50mm of prefabricated component, and laying structure as shown in Figure 3.
The sandwich structure composite material forming method the present invention relates to, consumptive material consumption is low, and degassing efficiency is high, resin-dipping is evenly complete, and operation is simple, and qualification rate is high, can effectively guarantee the product quality of sandwich structure composite material.The reinforcing material that is applicable to panel and backboard is fabric, sandwich material is the preparation that hard is not inhaled glue, thickness homogeneous material, and being specially adapted to sandwich material is the preparation that its circumradiuses that extend out size such as pottery, cork wood, closed-cell foam are not more than small-size materials piece or the interior material with holes of integral face of 100mm.
Accompanying drawing explanation
The pellicle laying structure schematic diagram of the forming method that accompanying drawing 1 the present invention relates to
The another kind of pellicle laying structure schematic diagram of the forming method that accompanying drawing 2 the present invention relates to
The technique laying structural representation of the forming method that accompanying drawing 3 the present invention relates to
The technique laying structural representation of the forming method that accompanying drawing 4 the present invention relates to
1-degas zone, 2-pellicle, 3-demoulding medium, 4-permeable medium, 5-backboard blank, 6-laminboard layer, 7-panel blank, 8-injected rubber hose, 9-deaeration pipe, 10-mould, 11-gum-injecting port, 12-bleeding point.
The specific embodiment
Below in conjunction with embodiment, the invention will be further described.Embodiment is only described further summary of the invention, not as the restriction to summary of the invention.
Embodiment mono-
The sandwich structure composite material of effective dimensions 980mm * 580mm of take in time processing plate thickness 5mm, ceramic laminboard layer thickness 15mm, back plate thickness 20mm, face is dull and stereotyped to be elaborated to inventing the moulding process relating to for example.
The Woven glass cloth EWR600 plain weave fabric of 1000mm * 600mm of take is backboard blank 5 and panel blank 7, and Woven glass cloth individual layer surface density is 600g/m
2, 12 layers of panel blank alignment and congruences, 46 layers of backboard blank alignment and congruences, take the length of side 11mm of one deck solid matter, the hexagon aluminium oxide ceramics of thickness 15 mm is laminboard layer 6.
Take 1 layer of 20 order, filament diameter is 0.4mm, is of a size of the woven polyethylene net of 930mm * 560mm as permeable medium 4; Pellicle 2 for surface density be 105g/m
2epoxy type Dahltexx, maximum contour dimension is 1050mm * 660mm, exhaust end diagonal angle clip, clip size 25mm * 30mm, fold height 30mm.
The ventilative high temperature weldering of the 1 layer of thick 1090mm * 690mm of 0.5mm of usining cloth is as demoulding medium 3.
Using the Woven glass cloth of 2 layers of 1000mm * 250mm as degas zone 1.
Using the spiral stream guidance pipe of the long Φ 12mm of 980mm and 940mm respectively as injected rubber hose 8 and deaeration pipe 9.
On plane mould 10, blank exhaust end aligns with pellicle clip, laying structure as shown in Figure 3, lay pellicle, panel blank, ceramic block laminboard layer, backboard blank, demoulding medium, permeable medium successively, the pellicle that exhaust end has been exceeded to blank after having spread is turned up, be covered on blank exhaust end surface, by accompanying drawing 2 lay degas zone glass fabrics, degas zone and the overlapping 20mm of blank exhaust end end face; Lay deaeration pipe 9 and bleeding point 12 formation degas systems.
Demoulding medium covers prefabricated component blank completely.
Permeable medium is vertical direction lay placed in the middle above the demoulding medium with resin flows direction, and in gum-injecting port direction one side, permeable medium is concordant with prefabricated component, injected rubber hose 8 is laid on permeable medium, adopt " line style " injecting glue, gum-injecting port 11 is arranged in to the two ends of injected rubber hose, as shown in Figure 3.
Under vacuum≤-0.098MPa condition, vacuum impregnating gum resin, solidifies at room temperature 53 minutes, obtaining thickness is the ceramic core filled composite material flat board of 40.3mm, effective dimensions 980mm * 580mm, and planar surface is smooth, and inner impregnation is complete, without bubble, without starved, quality is good.
Embodiment bis-
The foam core filled composite material flat board of effective dimensions 980mm * 680mm in time processing plate thickness 15mm, foam core layer thickness 20mm, back plate thickness 30mm, face of take is example, and the moulding process that invention is related to is elaborated.
The Woven glass cloth EWR600 plain weave fabric of 1000mm * 720mm of take is backboard blank 5 and panel blank 7, and Woven glass cloth individual layer surface density is 600g/m
2, neat superimposed 69 layers of backboard blank, neat superimposed 35 layers of panel blank, usings the polyurethane foam flat board with through hole of 1000mm * 720mm * 20mm as laminboard layer 6.
Take 2 layer of 20 order, filament diameter is 0.4mm, and size is respectively the woven polyethylene net of 950mm * 700mm, 950mm * 680mm as permeable medium 4, pellicle 2 for surface density be 105g/m
2epoxy type Dahltexx, maximum contour dimension is 1040mm * 800mm, 2 clip sizes are respectively 20mm * 50mm, fold height 50mm.
The ventilative high temperature weldering of the 1 layer of thick 1140mm * 860mm of 0.5mm of usining cloth is as demoulding medium 3.
Using the EWR600 Woven glass cloth of 2 layers of 1000mm * 280mm as degas zone 1.
Using the spiral stream guidance pipe of the long Φ 12mm of 980mm and 950mm respectively as injected rubber hose 8 and deaeration pipe 9.
On plane mould 10, blank exhaust end aligns with pellicle clip, laying structure as shown in Figure 4, lay Woven glass cloth for degas zone, pellicle, panel blank, the dull and stereotyped laminboard layer of polyurethane foam, backboard blank, demoulding medium, permeable medium successively, the overlapping 70mm of degas zone and pellicle, the pellicle that after having spread, exhaust end is exceeded to blank is turned up, and is covered on blank exhaust end surface, lay deaeration pipe 9 and bleeding point 12 formation degas systems, structural representation as shown in Figure 1.
Demoulding medium covers prefabricated component blank completely.
Permeable medium is vertical direction lay placed in the middle above the demoulding medium with resin flows direction, in gum-injecting port direction one side, two-layer permeable medium is concordant with prefabricated component, injected rubber hose 8 is laid on permeable medium, adopt " U-shaped " injecting glue, gum-injecting port 11 is arranged in to the Liang Ge corner of " U-shaped " injected rubber hose, as shown in Figure 4.
Under vacuum≤-0.098MPa condition, priming by vacuum vinylite, solidifies at room temperature 50 minutes, obtaining thickness is the foam core filled composite material flat board of 64.5mm, effective dimensions 980mm * 680mm, and planar surface is smooth, inner impregnation completely, without bubble, without dry spot, quality is good.
Embodiment tri-
With time processing plate thickness 6mm, cork wood laminboard layer thickness 20mm, back plate thickness 10mm, in face, the cork wood core filled composite material flat board of effective dimensions 1450mm * 700mm is example, and the moulding process that invention is related to is elaborated.
The plain weave carbon fibre fabric of 1500mm * 720mm of take is backboard blank 5 and panel blank 7, and carbon fibre fabric individual layer surface density is 400g/m
2, neat superimposed 35 layers of backboard blank, neat superimposed 21 layers of panel blank, usings the double-deck neat close-packed arrays of rectangle Balsa cork wood piece of 40mm * 20mm * 10mm as laminboard layer 6.
Take 1 layer of 20 order, filament diameter is 0.4mm, is of a size of the woven polyethylene net of 1450mm * 700mm as permeable medium 4; Pellicle 2 for surface density be 105g/m
2epoxy type Dahltexx, maximum contour dimension is 1550mm * 780mm, 2 clip sizes are respectively 25mm * 30mm, fold height 30mm.
The ventilative high temperature weldering of the 1 layer of thick 1580mm * 800mm of 0.5mm of usining cloth is as demoulding medium 3.
Using the plain weave carbon fibre fabric of 3 layers of 1500mm * 250mm as degas zone 1.
Using the spiral stream guidance pipe of the long Φ 12mm of 1480mm and 1450mm respectively as injected rubber hose 8 and deaeration pipe 9.
On plane mould 10, blank exhaust end aligns with pellicle clip, laying structure as shown in Figure 4, the fine fabric of carbon, pellicle, panel blank, cork wood piece laminboard layer, backboard blank, demoulding medium, permeable medium for lay degas zone successively, the overlapping 50mm of degas zone and pellicle, the pellicle that after having spread, exhaust end is exceeded to blank is turned up, and is covered on blank exhaust end surface, lay degassed pipeline 9 and bleeding point 12 formation degas systems, structural representation as shown in Figure 1.
Demoulding medium covers prefabricated component blank completely.
Permeable medium is placed in demoulding medium top, at the lay placed in the middle of the vertical direction with resin flows direction, in gum-injecting port direction one side, permeable medium is concordant with prefabricated component, injecting glue pipeline 8 is laid on permeable medium, adopt " line style " injecting glue, gum-injecting port 11 is arranged in to the two ends of injected rubber hose, as shown in Figure 3.
Under vacuum≤-0.098MPa condition, vacuum injecting glue vinylite SW905-2, within at room temperature 55 minutes, solidify, obtaining thickness is the cork wood core filled composite material flat board of 35.9mm, effective dimensions 1450mm * 700mm, planar surface is smooth, inner impregnation completely, without bubble, without starved, quality is good.
Claims (6)
1. a sandwich structure composite material forming method, adopt the moulding of vacuum assisted resin instillation process, comprise the processes such as base and flow guide system laying, resin injecting glue, curing molding, it is characterized in that: described flow guide system is with degas zone (1), base and flow guide system also comprise pellicle (2), pellicle is placed in panel blank (7) bottom all or part of covering blank exhaust end end face, and degas zone (1) partly overlaps with pellicle (2).
2. sandwich structure composite material forming method according to claim 1, it is characterized in that: base and flow guide system also comprise pellicle, degas zone (1) partly overlaps with pellicle (2), degas zone is placed in the pellicle lower floor of exhaust end one side panel blank bottom, with the overlapping 10mm～30mm of pellicle.
3. sandwich structure composite material forming method according to claim 1, it is characterized in that: base and flow guide system also comprise pellicle, degas zone (1) partly overlaps with pellicle (2), the pellicle of degas zone and blank exhaust end end face partly overlaps, and degas zone is not higher than pellicle height.
4. sandwich structure composite material forming method according to claim 2, it is characterized in that: base and flow guide system also comprise pellicle, degas zone (1) partly overlaps with pellicle (2), the pellicle of degas zone and blank exhaust end end face partly overlaps, and degas zone is not higher than pellicle height.
5. according to any one sandwich structure composite material forming method described in claim 1～4, it is characterized in that: pellicle is can demoulding medium.
6. according to any one sandwich structure composite material forming method described in claim 1～4, it is characterized in that: base and flow guide system also comprise pellicle, in blank exhaust end end, pellicle width is identical with prefabricated component width, highly be not less than sandwich structure layer (6), in other direction, pellicle size is than the monolateral large 20mm～50mm of prefabricated component.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107599450A (en) * | 2017-10-24 | 2018-01-19 | 山东非金属材料研究所 | A kind of sandwich material forming method |
| WO2017059512A3 (en) * | 2015-10-05 | 2018-04-05 | Uniao Brasileira De Educacao E Assistencia | Laminated composite and micronized composite made of raphia hookeri, and structural panel made from same |
| CN108297453A (en) * | 2018-01-02 | 2018-07-20 | 唐山宏正机械设备有限公司 | A method of utilizing Mold Making glass fibre reinforced plastics casing |
| 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 |
| CN114103173A (en) * | 2021-11-12 | 2022-03-01 | 湖南弘辉科技有限公司 | Method for forming cylinder wall of large-size gas flow guide pipe |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101077628A (en) * | 2006-05-26 | 2007-11-28 | 西门子公司 | A method for casting a component and a component comprising at least partly of fibre-reinforced plastic laminate |
| CN101352926A (en) * | 2008-09-08 | 2009-01-28 | 中国船舶重工集团公司第七二五研究所 | Vacuum auxiliary molding technique produced by large-sized sandwich composite material |
| CN101623932A (en) * | 2008-07-10 | 2010-01-13 | 上海艾郎风电科技发展有限公司 | Blade root end pouring device for wind mill |
| US20100108245A1 (en) * | 2007-03-20 | 2010-05-06 | Mitsubishi Heavy Industries, Ltd. | Method of vacuum-assisted rtm |
| US20110049426A1 (en) * | 2008-05-14 | 2011-03-03 | Hexcel Composites, Ltd. | Moulding processes |
| CN103182784A (en) * | 2013-03-26 | 2013-07-03 | 中材科技风电叶片股份有限公司 | Vacuum infusion forming method for carbon fiber composite structure member |
| CN103753829A (en) * | 2013-12-18 | 2014-04-30 | 奇瑞汽车股份有限公司 | RTM preform and RTM rapid forming die applying the same |
-
2014
- 2014-06-25 CN CN201410290346.XA patent/CN104139529B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101077628A (en) * | 2006-05-26 | 2007-11-28 | 西门子公司 | A method for casting a component and a component comprising at least partly of fibre-reinforced plastic laminate |
| US20100108245A1 (en) * | 2007-03-20 | 2010-05-06 | Mitsubishi Heavy Industries, Ltd. | Method of vacuum-assisted rtm |
| US20110049426A1 (en) * | 2008-05-14 | 2011-03-03 | Hexcel Composites, Ltd. | Moulding processes |
| CN101623932A (en) * | 2008-07-10 | 2010-01-13 | 上海艾郎风电科技发展有限公司 | Blade root end pouring device for wind mill |
| CN101352926A (en) * | 2008-09-08 | 2009-01-28 | 中国船舶重工集团公司第七二五研究所 | Vacuum auxiliary molding technique produced by large-sized sandwich composite material |
| CN103182784A (en) * | 2013-03-26 | 2013-07-03 | 中材科技风电叶片股份有限公司 | Vacuum infusion forming method for carbon fiber composite structure member |
| CN103753829A (en) * | 2013-12-18 | 2014-04-30 | 奇瑞汽车股份有限公司 | RTM preform and RTM rapid forming die applying the same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017059512A3 (en) * | 2015-10-05 | 2018-04-05 | Uniao Brasileira De Educacao E Assistencia | Laminated composite and micronized composite made of raphia hookeri, and structural panel made from same |
| CN107599450A (en) * | 2017-10-24 | 2018-01-19 | 山东非金属材料研究所 | A kind of sandwich material forming method |
| CN108297453A (en) * | 2018-01-02 | 2018-07-20 | 唐山宏正机械设备有限公司 | A method of utilizing Mold Making glass fibre reinforced plastics casing |
| 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 |
| CN114103173A (en) * | 2021-11-12 | 2022-03-01 | 湖南弘辉科技有限公司 | Method for forming cylinder wall of large-size gas flow guide pipe |
| CN114103173B (en) * | 2021-11-12 | 2024-04-19 | 湖南弘辉科技有限公司 | Forming method of large-size gas flow guide pipe cylinder wall |
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