CN108437306B - Composite material microwave indirect heating mold and curing method - Google Patents
Composite material microwave indirect heating mold and curing method Download PDFInfo
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- CN108437306B CN108437306B CN201810325089.7A CN201810325089A CN108437306B CN 108437306 B CN108437306 B CN 108437306B CN 201810325089 A CN201810325089 A CN 201810325089A CN 108437306 B CN108437306 B CN 108437306B
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- 239000002131 composite material Substances 0.000 title claims abstract description 91
- 238000010438 heat treatment Methods 0.000 title claims abstract description 37
- 238000001723 curing Methods 0.000 title abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 22
- 239000011159 matrix material Substances 0.000 claims abstract description 18
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 17
- 239000004917 carbon fiber Substances 0.000 claims abstract description 17
- 239000003365 glass fiber Substances 0.000 claims abstract description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004744 fabric Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 239000012945 sealing adhesive Substances 0.000 claims description 5
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 229920003192 poly(bis maleimide) Polymers 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 239000009719 polyimide resin Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- -1 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 150000003624 transition metals Chemical group 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims 1
- 238000011415 microwave curing Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 3
- 239000000805 composite resin Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000011157 advanced composite material Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000009461 vacuum packaging Methods 0.000 description 1
Images
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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- 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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
A microwave indirect heating mould for composite material and its solidifying method features that the microwave is absorbed by the microwave absorbing surface of said indirect heating mould, and the microwave energy is converted into heat energy for heating and solidifying the part made of composite material. The invention can realize the effective heating and curing of the multi-directional layering carbon fiber reinforced resin matrix composite material and the glass fiber reinforced resin matrix composite material, has a series of advantages of short curing time, low energy consumption and the like, greatly improves the microwave curing efficiency of the composite material parts, and provides theoretical basis and technical support for the industrial application of the composite material microwave curing technology.
Description
Technical Field
The invention relates to a composite material heating mold and a curing method, in particular to a composite material microwave heating mold and a curing method, and specifically relates to a composite material microwave indirect heating mold and a curing method.
Background
The advanced composite material has many excellent characteristics of high specific strength and specific modulus, good fatigue resistance, good corrosion resistance, good integral formability and the like, and the application of the composite material on the airplane in a large amount can not only obviously reduce the structural weight of the airplane and improve the performance of the airplane, but also greatly reduce the number of parts, simplify the assembly process and shorten the manufacturing period. At present, the composite material is widely used for main bearing parts of wings and fuselages, the dosage of the composite material on parts with complex curved surfaces such as air inlet channels is more and more, and the composite material is developed towards the directions of integral forming and co-curing.
At present, the composite material is mainly formed by heating, pressurizing, curing and molding by an autoclave process. The autoclave curing process is characterized in that resistance wires are used for heating air and then circularly flowing under the action of a fan, the composite material is heated in a convection heat transfer and heat conduction mode, the surface of the composite material is firstly heated, and then the heat is transferred to the inside. The heating rate of the composite part is slow, the temperature difference in the thickness direction of the part is large, the forming period is long, air and a die are heated to high temperature, and the energy consumption is high. The microwave curing method proposed by the applicant in the earlier stage is characterized in that electromagnetic waves directly penetrate through the composite material, the composite material is uniformly heated inside and outside at the same time, the heating speed is high, the forming period is short, the composite material is selectively heated by microwaves, air and a mold are not heated, and the energy consumption is low.
However, through a great deal of research, the applicant finds that microwaves are difficult to penetrate and heat multi-directionally-layered carbon fiber reinforced resin matrix composite materials, and the microwave curing glass fiber reinforced resin matrix composite materials have low heating efficiency and the like. Aiming at the problems, the invention provides a composite material microwave indirect heating mould and a curing method. The invention can realize the effective heating and curing of the multi-directional layering carbon fiber reinforced resin matrix composite material and the glass fiber reinforced resin matrix composite material, has a series of advantages of short curing time, low energy consumption and the like, greatly improves the microwave curing efficiency of the composite material parts, and provides theoretical basis and technical support for the industrial application of the composite material microwave curing technology.
Disclosure of Invention
The invention aims to provide a composite material microwave indirect heating mold and a composite material microwave indirect heating method, aiming at the problems that microwaves are difficult to penetrate through and heat a multidirectional spreading carbon fiber reinforced resin matrix composite material, the heating efficiency of a microwave curing glass fiber reinforced resin matrix composite material is low, and the like.
One of the technical schemes of the invention is as follows:
a composite microwave indirect heating mould is characterized in that: the mould consists of a supporting truss, a wave-transmitting panel, a heat-insulating layer and a wave-absorbing molded surface; the supporting truss is mechanically connected with the wave-transmitting panel and is used for supporting the wave-transmitting panel; the surface of the wave-transmitting panel is provided with a groove for placing a heat insulation layer and a wave-absorbing molded surface, the heat insulation layer is positioned at the bottom of the groove, and the composite material to be heated and cured is placed on the wave-absorbing molded surface. The height of the wave-absorbing molded surface is consistent with the height of the periphery of the wave-transmitting panel, namely the upper surface of the wave-absorbing molded surface is flush with the upper surface of the wave-transmitting panel.
The supporting truss is composed of smooth transition metal structures, such as stainless steel round tubes, and no sharp corners or burrs exist on the surface and the connection part of the supporting truss.
The wave-transmitting panel is made of materials with good wave-transmitting performance and certain rigidity and hardness, such as glass fiber reinforced resin matrix composite materials, ceramics, polytetrafluoroethylene and the like; the periphery of the groove on the surface of the wave-transmitting panel adopts circular arc transition with the diameter not less than 5mm, and no transition sharp corner exists.
The heat insulation layer is made of materials with good heat insulation performance (such as glass fiber cloth, asbestos cloth and the like) and is used for reducing heat loss of the wave-absorbing molding surface to the wave-transmitting panel and the surrounding environment.
The wave-absorbing profile is composed of chopped carbon fiber felt reinforced resin matrix composite materials, the length of chopped carbon fibers is 3 mm-20 mm (preferably 4 mm-6 mm), the volume fraction of the chopped carbon fibers is 42% -58% (preferably 48.5% -52.5%), and the thickness of the wave-absorbing profile is 5 mm-15 mm (preferably 8 mm-12 mm); when the use temperature is below 150 ℃, the resin matrix of the wave-absorbing profile adopts low-temperature resin systems such as epoxy resin or bismaleimide resin, and when the use temperature is above 150 ℃, the resin matrix of the wave-absorbing profile adopts high-temperature resin systems such as polyimide resin; the periphery of the wave-absorbing molded surface is in arc transition with the radius not less than 5mm, and a transition sharp corner does not exist; the peripheral edge of the wave-absorbing molded surface is at least 50mm larger than the peripheral edge of the composite material part to be cured.
The second technical scheme of the invention is as follows:
a microwave indirect curing method for composite materials is characterized by comprising the following steps: when the thickness of the composite material part to be cured is not more than 5mm, directly and sequentially placing demoulding cloth, the composite material part to be cured, the demoulding cloth, the adhesive absorption cloth, the nonporous isolation film, the ventilated felt, the vacuum bag and the like on the microwave indirect heating mould; when the thickness of the composite material part to be cured is more than 5mm, sequentially placing demoulding cloth, the composite material part to be cured, demoulding cloth, adhesive absorption cloth, a non-porous isolating film, a wave absorbing layer, an air felt, a vacuum bag and the like on the microwave indirect heating mould; the vacuum bag is sealed by a sealing adhesive tape and vacuumized; when the composite material part to be cured is a zero-adhesive-absorption composite material system, auxiliary materials such as adhesive absorption cloth and the like are not required to be arranged; when the composite material part to be cured is a simple structure such as a flat plate or a single-curvature laminated plate, the material, the shape and the thickness of the wave-absorbing layer are consistent with those of the wave-absorbing surface of the mold, and when the composite material part to be cured is a complex structure such as a double-curvature or multi-curvature laminated plate, the wave-absorbing layer is formed by a flexible wave-absorbing diaphragm (such as a carbon black silica gel diaphragm) with the wave-absorbing performance equivalent to that of the wave-absorbing surface of the mold; the microwave indirect heating mould is placed in the microwave cavity, and a metal structure on the mould is well contacted with the metal wall surface of the microwave cavity (common ground), so that the phenomena of discharging, igniting and arc discharge in a strong electromagnetic environment are avoided; and during curing, measuring the temperature of the composite part and the wave-absorbing profile in real time, and adjusting the power in the microwave cavity in real time by adopting the difference between the measured temperature of the wave-absorbing profile and the set curing temperature until the composite part is completely cured.
The invention has the beneficial effects that:
the invention can realize the effective heating and curing of the multi-directional layering carbon fiber reinforced resin matrix composite material and the glass fiber reinforced resin matrix composite material, has a series of advantages of short curing time, low energy consumption and the like, greatly improves the microwave curing efficiency of the composite material parts, and provides theoretical basis and technical support for the industrial application of the composite material microwave curing technology.
Drawings
FIG. 1 is a composite microwave indirect heated mold and vacuum packaging system of the present invention;
in the figure: the composite material comprises a supporting truss 1, a wave-transmitting panel 2, a heat-insulating layer 3, a wave-absorbing profile 4, demoulding cloth 5, a composite material part 6, a rubberized fabric 7, a non-porous isolating membrane 8, a wave-absorbing layer 9, an air-permeable felt 10, a vacuum bag 11 and a sealing adhesive tape 12.
Detailed Description
The invention is further described below with reference to the figures and examples.
The first embodiment.
This example uses 24 layers of carbon fiber reinforced bismaleimide resin composite laminate as the composite part (6) to be cured, in a lay-up sequence of [0/+45/-45/90]5The microwave indirect heating die comprises a support truss (1), a wave-transmitting panel (2), a heat-insulating layer (3) and a wave-absorbing profile (4), wherein the size of a part is 300mm × 300mm × 3mm, the curing temperature is 200 ℃, the support truss (1) is formed by welding stainless steel pipes with the outer diameter of 40mm and the inner diameter of 36mm, the wave-transmitting panel (2) is made of wave-transmitting ceramics, the size of 500mm × 500mm × 30mm, the size of a groove is 400mm × 400mm × 12mm, a corner around the groove is a quarter circular arc with the radius of 8mm, the support truss (1) and the ceramic wave-transmitting panel (2) are connected through a threaded wave-absorbing machine, the surface of the joint is polished smooth and free of sharp corners and burrs, the heat-insulating layer (3) is formed by 16 layers of glass fiber cloth, the thickness is 2mm, the profile (4) is made of chopped carbon fiber feltThe reinforced polyimide resin composite material is prepared by chopped carbon fibers with the length of 5mm and the volume fraction of 50 percent, the wave-absorbing profile size is 399mm × 399mm × 10mm, the peripheral corners are quarter arcs with the radius of 7.8mm, and the highest service temperature is 350 ℃.
After laying, pasting an aluminum foil adhesive tape around the composite material part (6), reserving glue flowing holes, and placing the composite material part (6) and a series of vacuum auxiliary materials on a microwave indirect heating mould. The placing sequence is sequentially demoulding cloth (5), a composite material part to be cured (6), demoulding cloth (5), a non-porous isolating membrane (8), an air-permeable felt (10), a vacuum bag (11) and the like; the vacuum bag (11) is sealed by a sealing adhesive tape (12) and vacuumized, and the vacuum degree is-0.098 MPa. Placing the prepared microwave indirect heating mould in a microwave cavity, wherein the stainless steel supporting truss (1) is in good contact with the metal wall surface of the microwave cavity; during curing, the temperature of the composite part (6) and the wave-absorbing molded surface (4) is measured in real time, and the power in the microwave cavity is adjusted in real time by adopting the difference between the measured temperature of the wave-absorbing molded surface (4) and the set curing temperature until the composite part (6) is completely cured.
Example two.
This example uses 200 plies of glass fibre reinforced epoxy resin composite laminate as the composite part (6) to be cured, in a lay-up sequence [0/90 ]]100The microwave indirect heating die comprises a supporting truss (1), a wave-transmitting panel (2), a heat-insulating layer (3) and a wave-absorbing molded surface (4), wherein the size of the part is 300mm × 300mm × 20mm, the curing temperature is 120 ℃, the supporting truss (1) is formed by welding stainless steel pipes with the outer diameter of 40mm and the inner diameter of 36mm, the wave-transmitting panel (2) is made of glass fiber reinforced epoxy resin composite materials, the size of 500mm × 500mm × 30mm, the size of a groove is 400mm × 400mm × 12mm, corners around the groove are quarter arcs with the radius of 8mm, the supporting truss (1) and the glass fiber reinforced epoxy resin composite material wave-transmitting panel (2) are mechanically connected through threads, the surface of the connection is polished smooth, sharp corners and burrs do not exist, the heat-insulating layer (3) is made of asbestos cloth with the thickness of 2mm, and the microwave indirect heating die is of the microwave indirect heating die typeThe surface (4) is made of chopped carbon fiber felt reinforced bismaleimide resin composite materials, the length of the chopped carbon fibers is 5mm, the volume fraction of the carbon fibers is 50%, the size of the wave-absorbing profile is 399mm × 399mm × 10mm, the peripheral corners are quarter arcs with the radius of 7.8mm, and the maximum service temperature is 180 ℃.
After layering is finished, a composite part (6) and a series of vacuum auxiliary materials are placed on a microwave indirect heating mould in sequence, wherein the demoulding cloth (5), the composite part to be cured (6), the demoulding cloth (5), an adhesive absorption cloth (7), a non-porous isolation film (8), a wave absorbing layer (9), an air permeable felt (10), a vacuum bag (11) and the like are arranged in sequence, the vacuum bag (11) is sealed by a sealing adhesive tape (12) for vacuumizing, the vacuum degree is-0.098 MPa, the wave absorbing layer (9) is made of a silica gel diaphragm with the carbon black content of 45%, the size is 300mm × 300mm × 8mm, the prepared microwave indirect heating mould is placed in a microwave cavity, a stainless steel support truss (1) is in good contact with the metal wall surface of the microwave cavity, the temperatures of the composite part (6) and a wave absorbing profile (4) are measured in real time during curing, and the power in the microwave cavity is adjusted in real time by adopting the difference between the measured temperature of the profile (4) and the set curing temperature until the composite part (6) is completely cured.
The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
The present invention is not concerned with parts which are the same as or can be implemented using prior art techniques.
Claims (6)
1. A composite microwave indirect heating mould is characterized in that: the mould consists of a supporting truss, a wave-transmitting panel, a heat-insulating layer and a wave-absorbing molded surface; the supporting truss is mechanically connected with the wave-transmitting panel and is used for supporting the wave-transmitting panel; the surface of the wave-transmitting panel is provided with a groove for placing a heat insulation layer and a wave-absorbing molded surface, the heat insulation layer is positioned at the bottom of the groove, and the composite material to be heated and cured is placed on the wave-absorbing molded surface; the support truss is a smooth transition metal structural part, and the metal structural part is well contacted with the metal wall surface of the microwave cavity and is grounded so as to avoid the phenomena of discharging, igniting and arcing in a strong electromagnetic environment; the wave-transmitting panel is made of materials with good wave-transmitting performance and certain rigidity and hardness, the periphery of the groove on the surface of the wave-transmitting panel is in arc transition with the diameter not less than 5mm, and transition sharp corners do not exist; the wave-absorbing profile is made of chopped carbon fiber felt reinforced resin matrix composite materials, the length of the chopped carbon fibers is 4 mm-6 mm, the volume fraction of the chopped carbon fibers is 48.5% -52.5%, and the thickness of the wave-absorbing profile is 8 mm-12 mm; when the use temperature is below 150 ℃, the resin matrix of the wave-absorbing profile adopts epoxy resin or bismaleimide resin, and when the use temperature is above 150 ℃, the resin matrix of the wave-absorbing profile adopts polyimide resin; the periphery of the wave-absorbing molded surface is in arc transition with the radius not less than 5mm, and a transition sharp corner does not exist; the peripheral edge of the wave-absorbing molded surface is at least 50mm larger than the peripheral edge of the composite material part to be cured;
when the thickness of the composite material part to be cured is not more than 5mm, directly and sequentially placing demoulding cloth, the composite material part to be cured, the demoulding cloth, the adhesive absorption cloth, the nonporous isolation film, the breathable felt and the vacuum bag on the microwave indirect heating mould; when the thickness of the composite material part to be cured is more than 5mm, sequentially placing demoulding cloth, the composite material part to be cured, the demoulding cloth, the adhesive absorption cloth, the nonporous isolation film, the wave absorbing layer, the breathable felt and the vacuum bag on the microwave indirect heating mould; the vacuum bag is sealed by a sealing adhesive tape and vacuumized; when the composite material part to be cured is a zero-adhesive-absorption composite material system, an adhesive absorption cloth does not need to be arranged; when the composite material part to be cured is of a flat plate or single-curvature laminated plate structure, the wave-absorbing layer is consistent with the wave-absorbing profile of the die in material, shape and thickness, and when the composite material part to be cured is of a double-curvature or multi-curvature laminated plate structure, the wave-absorbing layer is formed by a flexible wave-absorbing diaphragm which has equivalent wave-absorbing performance to the wave-absorbing profile of the die; the microwave indirect heating mould is arranged in the microwave cavity; and during curing, measuring the temperature of the composite part and the wave-absorbing profile in real time, and adjusting the power in the microwave cavity in real time by adopting the difference between the measured temperature of the wave-absorbing profile and the set curing temperature until the composite part is completely cured.
2. The composite microwave indirect heated mold of claim 1, wherein: the metal structural part is a stainless steel round pipe, and the surface and the joint of the metal structural part are free of sharp corners and burrs.
3. The composite microwave indirect heated mold of claim 1, wherein: the wave-transparent panel is made of glass fiber reinforced resin matrix composite, ceramic, polytetrafluoroethylene or glass.
4. The composite microwave indirect heated mold of claim 1, wherein: the heat insulation layer is made of materials with good heat insulation performance and used for reducing heat loss of the wave-absorbing molded surface to the wave-transmitting panel and the surrounding environment.
5. The composite microwave indirect heated mold of claim 4, wherein: the heat insulation layer is made of glass fiber cloth and asbestos cloth.
6. The composite microwave indirect heating mold of claim 1, wherein the flexible wave-absorbing membrane is a carbon black silica gel membrane.
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| CN201810325089.7A CN108437306B (en) | 2018-04-12 | 2018-04-12 | Composite material microwave indirect heating mold and curing method |
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| CN201810325089.7A CN108437306B (en) | 2018-04-12 | 2018-04-12 | Composite material microwave indirect heating mold and curing method |
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| FR2720971B1 (en) * | 1994-06-08 | 1996-08-30 | Centre Nat Rech Scient | Device for processing materials by microwave. |
| US20030224082A1 (en) * | 2002-05-29 | 2003-12-04 | Akopyan Razmik L. | Microwave molding of polymers |
| CN102990946B (en) * | 2012-11-20 | 2015-03-11 | 南京航空航天大学 | Method for adopting microwave ultrasound solidification fibre reinforced composite component and special device thereof |
| CN103192536B (en) * | 2013-03-26 | 2015-01-14 | 南京航空航天大学 | Microwave high-pressure intermittent curing method for fiber-reinforced resin base composite material and die |
| CN103587130B (en) * | 2013-10-15 | 2016-04-06 | 南京航空航天大学 | The method of microwave curing fiber-reinforced resin matrix compound material component and device |
| CN104760302B (en) * | 2015-03-19 | 2017-03-15 | 南京航空航天大学 | A kind of method of utilization microwave heating absorbing material mold cured composite |
| CN106273536B (en) * | 2016-08-16 | 2018-11-23 | 中国商用飞机有限责任公司 | The microwave curing manufacturing process and its laminate of carbon fiber/epoxy resin composite material |
| CN207190300U (en) * | 2017-08-21 | 2018-04-06 | 昆明理工大学 | A kind of microwave curing stove to technique for aircraft composite solidification |
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