CN113997468A - Reinforcement position and pressure control method for composite material reinforcement ring frame - Google Patents
Reinforcement position and pressure control method for composite material reinforcement ring frame Download PDFInfo
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- CN113997468A CN113997468A CN202111304901.6A CN202111304901A CN113997468A CN 113997468 A CN113997468 A CN 113997468A CN 202111304901 A CN202111304901 A CN 202111304901A CN 113997468 A CN113997468 A CN 113997468A
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- ring frame
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 49
- 239000002131 composite material Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 22
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 48
- 239000004917 carbon fiber Substances 0.000 claims abstract description 48
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 48
- 230000008859 change Effects 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000741 silica gel Substances 0.000 claims abstract description 3
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 3
- 239000004744 fabric Substances 0.000 claims description 47
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 238000007731 hot pressing Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 229910001374 Invar Inorganic materials 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 description 6
- 230000000750 progressive effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
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Classifications
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/301—Modular mould systems [MMS], i.e. moulds built up by stacking mould elements, e.g. plates, blocks, rods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
A method for controlling the reinforcement position and pressure of a composite material reinforcement ring frame is realized based on a rigid mold, a gradual change mold and a flexible mold, the rigid mold is used as an integral forming base and simultaneously ensures the appearance of a ring frame web plate and a ring frame edge strip, invar steel is adopted to match the thermal expansion of the composite material, and the rigidity and the thermal distribution are considered through reasonable structural design; the gradual change mould is made of a material compounded by carbon fiber prepreg and unvulcanized rubber sheets, different positions of the gradual change mould have different properties through a specially designed layer, the rigidity of a reinforcement position is higher, the rigidity of a ring frame web plate position is moderate, and the rigidity of a ring frame edge strip position is lower; the flexible mold is made of silica gel materials, can be completely shaped, and is matched with the rigid mold and the gradual change mold to pressurize the frame edges of the ring frame and the reinforced rib. According to the invention, through the matching use of the three molds during the curing of the composite material reinforced ring frame, the reinforcement and the ring frame are well pressurized while the reinforcement position and the appearance of the ring frame are ensured.
Description
Technical Field
The invention belongs to the field of composite material manufacturing, and provides a method for controlling the reinforcement position and pressure of a composite material reinforcement ring frame.
Background
In the manufacturing process of the composite material reinforced ring frame, due to the fact that the reinforcing ribs are arranged on the web plate of the ring frame, positioning and pressurization of the reinforcing ribs and the whole ring frame are in conflict in the curing process, namely if the positioning of the reinforcing ribs is controlled, the reinforcing ribs and the ring frame are prone to poor pressurization, and the reinforcing ribs are prone to positioning deviation due to the pressurization of the reinforcing ribs and the ring frame, so that parts cannot be successfully developed at late time, a large number of products are scrapped, great economic loss is caused, and customers are dissatisfied.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide a simple and convenient-to-operate technological method for realizing the positioning and pressurization of the reinforcement of the composite material reinforcement ring frame in the molding process.
In order to solve the problems, the invention adopts the following technical scheme:
a reinforcement position and pressure control method of a composite material reinforcement ring frame is realized based on a rigid mold 10, a gradual change mold 14 and a flexible mold 9, and through the matching use of the three molds when the composite material reinforcement ring frame 8 is cured, reinforcement and the ring frame are well pressurized while the reinforcement position and the appearance of the ring frame are ensured. The method specifically comprises the following steps:
first step of making a progressive die 14
A release agent was applied to the surface of the tapered mold forming die 1 to prepare for laying, and a carbon fiber fabric prepreg a2 and an unvulcanized rubber sheet B3 were laid on the tapered mold forming die 1 in accordance with the previously designed lay-up and the lay-up position determined in accordance with table 1, taking care that the unvulcanized rubber 4 was added at the R-angle position. After the laying is finished, the whole body is packaged to be made into a vacuum bag, the vacuum bag is moved into an autoclave for curing treatment, the curing temperature is 180 +/-5 ℃, the curing pressure is 700 +/-30 KPa, and the gradual-change die 14 is obtained after curing and demoulding. The gradient mould 14 has different properties at different positions through specially designed layering, and the whole gradient mould 14 has three rigidity parts; the three rigidity parts comprise a position 11 with high rigidity, a position 12 with moderate rigidity and a position 13 with low rigidity, wherein the rigidity of the reinforcement position is high, and reinforcement can be positioned; the rigidity of the ring frame web is moderate, the elasticity is good, and the pressure can be better transferred to the ring frame web while the position of the edge strip is ensured; the rigidity of the ring frame edge strip is low, and the ring frame edge strip is suitable for transmitting R-angle pressure of the edge strip.
TABLE 1 gradual change mould lay-up table
| Layer number | Material | Angle of rotation | Method of laying |
| P1 | Carbon fiber fabric prepreg | 45° | Vacuum compacting for 15min |
| P2 | Unvulcanized rubber | N/A | Hot compacting for 35min |
| P3 | Carbon fiber fabric prepreg | 0° | Vacuum compacting for 10min |
| P4 | Carbon fiber fabric prepreg | 45° | |
| P5 | Carbon fiber fabric prepreg | 0° | |
| P6 | Carbon fiber fabric prepreg | 45° | Vacuum compacting for 10min |
| P7 | Carbon fiber fabric prepreg | 0° | |
| P8 | Carbon fiber fabric prepreg | 45° | |
| P9 | Carbon fiber fabric prepreg | 0° | Vacuum compacting for 10min |
| P10 | Carbon fiber fabric prepreg | 45° | |
| P11 | Carbon fiber fabric prepreg | 0° | Vacuum compacting for 10min |
| P12 | Carbon fiber fabric prepreg | 45° | |
| P13 | Carbon fiber dry cloth | 0° | Vacuum compacting for 10min |
| P14 | Unvulcanized rubber | N/A | Vacuum compacting for 10min |
Second, the flexible mold 9 is manufactured
The flexible mold comprises carbon fiber fabric prepreg B5, an unvulcanized rubber sheet B6 and carbon fiber dry cloth 7, wherein the carbon fiber dry cloth 7 is arranged between the carbon fiber fabric prepreg B5 and the unvulcanized rubber sheet B6, the carbon fiber fabric prepreg 5, the unvulcanized rubber sheet 6 and the carbon fiber dry cloth 7 are laid according to a pre-designed laying layer and laying layer positions, the carbon fiber fabric prepreg, the unvulcanized rubber sheet 6 and the carbon fiber dry cloth 7 enter an autoclave for curing treatment after the laying is finished, the curing temperature is 180 +/-5 ℃, the curing pressure is 300 +/-30 KPa, and the flexible mold 9 is formed after the curing. The flexible mold is made of silica gel materials, can be completely shaped and is used for being matched with the rigid mold 10 and the gradual change mold 14 to pressurize the annular frame edge of the reinforced annular frame 8 and the reinforced rib.
Third, a rigid mold 10 is fabricated
The rigid mold 10 is used as an integral forming base and is used for ensuring the appearance of a ring frame web plate and a ring frame edge strip of the reinforced ring frame 8, invar steel is adopted to manufacture the rigid mold 10 to match the thermal expansion of a composite material, a frame type mold structure is adopted to ensure that the rigidity and the thermal distribution are both considered, after manufacturing, the rigid mold 10 is degreased and then is subjected to laying pretreatment, and a release agent is coated and dried for solidification.
Fourthly, the three moulds are used in cooperation
4.1) the web and the edge strip of the reinforced ring frame 8 made of composite materials are laid on the rigid mould 10, the reinforcement of the reinforced ring frame 8 is laid at the position 11 with higher rigidity of the gradual change mould 14, the gradual change mould 14 is placed above the gradual change mould 14 after the two are laid, and the combination is carried out according to the mode shown in figure 3, wherein the specific combination mode is as follows: the rigid mould 10 is used as a foundation for combined positioning, the composite material reinforced ring frame product 8 is positioned on the rigid mould 10 through pins, the gradual change mould 14 is attached to the reinforcement of the reinforced ring frame 8, the flexible mould 9 is attached to the other side of the reinforcement, and positioning and fixing are performed through the positioning characteristics of the rigid mould 10 and the gradual change mould 14 at the position 11 with higher rigidity, so that the position with higher rigidity completely covers a reinforced vertical edge, the position 12 with moderate rigidity covers a ring frame web plate, and the position 13 with lower rigidity covers a ring frame edge strip and an R angle.
4.2) after the rigid mould 10 and the gradual change mould 14 are fixed, the flexible mould 9 is placed at the exposed position of the reinforcement ring frame 8 in a shape-following manner as shown in figure 3, pressure sensitive adhesive tapes are adopted for fixing, and then auxiliary materials such as isolating films, air permeable felts and the like are laid for encapsulating vacuum bags.
And 4.3) moving the packaged mold combination into a hot pressing tank, applying 700 +/-30 KPa pressure, heating and curing, wherein the curing temperature is 180 +/-5 ℃, when the mold combination is cured in the hot pressing tank, the pressure acts on the gradual change mold 14 and the flexible mold 9, the pressure is buffered and redistributed to a certain extent through different rigidities at different positions, the positioning of the reinforcement and the shape preservation of an R angular position are considered, and the demolding is carried out after the curing is finished to obtain the composite material reinforcement ring frame with qualified internal quality and appearance.
The invention has the following advantages and beneficial effects:
the invention can utilize the complementary action of moulds with different properties, the rigid mould fixes the base and positions and shapes, the gradual-change mould utilizes the rigid position to position and reinforce the rib, utilizes the position with moderate rigidity to position the edge strip and transmit the pressure of the web plate, utilizes the position with smaller rigidity to transmit the R angle pressure, utilizes the flexible mould to transmit the pressure at the other positions, and realizes the positioning and pressure transmission by matching the moulds with different properties and different functions, so that the positioning and the pressure transmission of the reinforced ring frame are controllable during curing, and the quality of the product and the overall production efficiency are improved.
Drawings
FIG. 1 is a schematic structural view of a progressive mold;
FIG. 2 is a schematic structural view of a flexible mold;
fig. 3 is a schematic diagram of the cooperation of three molds.
In the figure: 1, forming a gradual change die; 2, carbon fiber fabric prepreg A; 3 unvulcanized rubber sheet A; 4 unvulcanized rubber (partially filled at the R-angle); 5, carbon fiber fabric prepreg B; 6 an unvulcanized rubber sheet B; 7, carbon fiber dry cloth; 8, adding a rib ring frame; 9, a flexible mold; 10 rigid mold; 11 the position with higher rigidity; 12 a moderate stiffness position; 13 a position with lower rigidity; 14 progressive die.
Detailed Description
The process scheme is described in detail below with reference to the accompanying drawings and examples:
as shown in fig. 1, the progressive die is laid according to the pre-designed layers and the positions of the layers, and the progressive die is manufactured by curing after the laying is finished.
As shown in FIG. 2, the flexible mold is laid according to the pre-designed layers and the positions of the layers, and the flexible mold is manufactured through solidification after the laying is finished.
As shown in figure 3, the process technology is used by combining three types of moulds, an invar steel is adopted to manufacture a rigid mould, a web plate and a flange strip of a rib ring frame product are paved and superposed on the rigid mould, ribs are paved on a gradual change mould, the paved and superposed rib paving layer and the gradual change mould are combined together on the basis of the web plate paving layer and the rigid mould, the gradual change mould and the rigid mould are matched through a positioning device, finally, the flexible mould is combined along with the shape, a vacuum bag is packaged after the combination, and the combination is heated, pressurized and solidified in an autoclave.
The invention utilizes the synergistic action of three different dies of rigidity, gradual change and flexibility to redistribute the pressure applied on the reinforced ring frame product by the autoclave, so that different positions can be fully pressed, the internal quality is ensured, and simultaneously, the dies with different properties are utilized to carry out positioning, the appearance and the position degree of the reinforced ring frame and the edge strip are ensured, and the problems of poor integral pressurization caused by ensuring the reinforced position and the edge strip appearance or over-poor position degree and appearance caused by ensuring the pressurization are solved. The technology saves a large amount of production cost and realizes the breakthrough of the manufacturing technology of the composite material reinforced ring frame.
A technology for controlling the reinforcement position and pressure of a composite material reinforcement ring frame comprises the following steps:
1) manufacturing a gradual change die 14: coating a release agent on a gradual change mold forming mold 1 for carrying out laying preparation, laying a carbon fiber fabric prepreg 2 and an unvulcanized rubber sheet 3 which are laid in advance on the mold 1, integrally packaging the carbon fiber fabric prepreg and the unvulcanized rubber sheet after laying according to the preset laying, manufacturing a vacuum bag, moving the vacuum bag into a hot pressing tank for curing treatment, wherein the curing temperature is 180 ℃, the curing pressure is 700KPa, and demolding after curing to form a gradual change mold 14 with three rigidity parts, namely a position with larger rigidity 11, a position with moderate rigidity 12 and a position with smaller rigidity 13. The pre-designed plies and ply placement locations are determined according to table 1.
2) Manufacturing a flexible mold 9: and (3) laying a carbon fiber fabric prepreg 5, an unvulcanized rubber sheet 6 and a carbon fiber dry cloth 7 according to a preset laying layer, entering an autoclave for curing treatment after laying, wherein the curing temperature is 180 ℃, the curing pressure is 300KPa, and forming a flexible mold 9 after curing.
3) The rigid mold 10 is manufactured by invar steel, after manufacturing, the rigid mold 10 is degreased and is subjected to laying pretreatment, and a release agent is coated and dried for solidification.
4) The frame web of the reinforced ring frame 8 made of composite materials is laid on the rigid mould 10, the reinforcement of the reinforced ring frame 8 is laid at the position 11 with higher rigidity of the gradual change mould 14, the two are combined in a mode shown in figure 3 after being laid, and the rigid mould 10 and the gradual change mould 14 are positioned and fixed through the positioning characteristics of the position 11 with higher rigidity, so that the position with higher rigidity completely covers the reinforced vertical edge, the position with moderate rigidity covers the ring frame web, and the position with lower rigidity covers the ring frame edge strip and the R angle.
5) After the rigid mold 10 and the gradual change mold 14 are fixed, the flexible mold 9 is placed at the exposed position of the reinforcement ring frame in a shape-following manner as shown in fig. 3, and is fixed by a pressure sensitive adhesive tape, and then auxiliary materials such as an isolation film, an air felt and the like are laid to encapsulate a vacuum bag.
6) And (3) moving the packaged die combination into a hot pressing tank, applying 700KPa pressure, heating and curing at 180 ℃, acting the pressure on the gradual change die and the flexible die during curing in the hot pressing tank, realizing certain buffering and redistribution of the pressure through different rigidity at different positions, simultaneously considering the positioning of the reinforcement and the shape preservation of the R angle position, and demoulding after curing to obtain the composite material reinforcement ring frame with qualified internal quality and appearance.
The above-mentioned embodiments only express the embodiments of the present invention, but not should be understood as the limitation of the scope of the invention patent, it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the concept of the present invention, and these all fall into the protection scope of the present invention.
Claims (5)
1. A reinforcement position and pressure control method of a composite material reinforcement ring frame is characterized in that the control method is realized based on a rigid mold (10), a gradual change mold (14) and a flexible mold (9), and through the matched use of the three molds when the composite material reinforcement ring frame (8) is cured, reinforcement and the ring frame are well pressurized while the reinforcement position and the appearance of the ring frame are ensured; the control method comprises the following steps:
first step manufacture gradual change mold (14)
Coating a release agent on the surface of a gradual change mold forming die (1), carrying out paving preparation, paving a carbon fiber fabric prepreg A (2) and an unvulcanized rubber sheet B (3) on the gradual change mold forming die (1) according to a preset paving layer and a paving position, and adding unvulcanized rubber (4) at an R angle position; after the laying is finished, the whole body is packaged to be a vacuum bag, the vacuum bag is moved into a hot pressing tank for curing treatment, and the gradual change mould (14) is prepared after curing and demoulding; the gradient mould (14) has different properties at different positions through specially designed layering, and the whole gradient mould (14) has three rigidity parts; the three rigidity parts comprise a position (11) with high rigidity, a position (12) with moderate rigidity and a position (13) with low rigidity, wherein the rigidity of the reinforcement position is high, the rigidity of the web plate position of the ring frame is moderate, and the rigidity of the edge strip position of the ring frame is low;
second, make the flexible mould (9)
The flexible mold comprises a carbon fiber fabric prepreg B (5), an unvulcanized rubber sheet B (6) and carbon fiber dry cloth (7), wherein the carbon fiber dry cloth (7) is arranged between the carbon fiber fabric prepreg B (5) and the unvulcanized rubber sheet B (6), the carbon fiber fabric prepreg (5), the unvulcanized rubber sheet (6) and the carbon fiber dry cloth (7) are laid according to pre-designed laying and laying positions, a hot pressing tank is used for curing after the laying is finished, and the flexible mold (9) is formed after the curing; the flexible mould is made of silica gel materials, can be completely conformal, and is used for being matched with the rigid mould (10) and the gradual change mould (14) to pressurize the annular frame rim and the reinforcement of the reinforcement annular frame (8);
thirdly, manufacturing a rigid mould (10)
The rigid mold (10) is used as an integral forming base and is used for ensuring the shapes of a ring frame web plate and a ring frame edge strip of the reinforced ring frame (8), after the rigid mold (10) is degreased after being manufactured, the rigid mold is subjected to laying pretreatment, and a release agent is coated and dried for solidification;
fourthly, the three moulds are used in cooperation
4.1) the web and the edge of the composite material reinforcement ring frame (8) are laid on the rigid mould (10), the reinforcement of the reinforcement ring frame (8) is laid at the position (11) with higher rigidity of the gradual change mould (14), the gradual change mould (14) is arranged above the gradual change mould (14) after the two are laid, and the specific combination mode is as follows: the method comprises the following steps that a rigid mould (10) is used as a foundation for combined positioning, a composite material reinforced ring frame product (8) is positioned on the rigid mould (10) through a pin, a gradual change mould (14) is attached to a reinforcement of the reinforced ring frame (8), a flexible mould (9) is attached to the other side of the reinforcement, the rigid mould (10) and the gradual change mould (14) are positioned and fixed through the positioning characteristics of a position (11) with higher rigidity, the position with higher rigidity completely covers a reinforced vertical edge, a position (12) with moderate rigidity covers a ring frame web plate, and a position (13) with lower rigidity covers a ring frame edge strip and an R angle;
4.2) after the rigid mould (10) and the gradual change mould (14) are fixed, the flexible mould (9) is placed at the exposed position of the reinforcement ring frame (8) along the shape, pressure sensitive adhesive tapes are adopted for fixing, then auxiliary materials are laid, and a vacuum bag is packaged;
and 4.3) moving the packaged die combination into a hot-pressing tank, heating and curing, wherein when the die combination is cured in the hot-pressing tank, pressure acts on the gradual change die (14) and the flexible die (9), and demolding is carried out after curing is finished to obtain the composite material reinforced ring frame with qualified internal quality and appearance.
2. A reinforcement position and pressure control method for a composite material reinforced ring frame according to claim 1, wherein the pre-designed plies and ply positions in the first step are determined according to table 1:
TABLE 1 gradual change mould lay-up table
。
3. The method for controlling the reinforcement position and pressure of the composite material reinforcement ring frame according to claim 1, wherein in the first step, the curing temperature is 180 ± 5 ℃ and the curing pressure is 700 ± 30 KPa.
4. The method as claimed in claim 1, wherein the curing temperature of the curing process is 180 ± 5 ℃ and the curing pressure is 300 ± 30 KPa.
5. The method as claimed in claim 1, wherein the pressure applied in the autoclave is 700 ± 30KPa, and the curing temperature is 180 ± 5 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111304901.6A CN113997468A (en) | 2021-11-05 | 2021-11-05 | Reinforcement position and pressure control method for composite material reinforcement ring frame |
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|---|---|---|---|
| CN202111304901.6A CN113997468A (en) | 2021-11-05 | 2021-11-05 | Reinforcement position and pressure control method for composite material reinforcement ring frame |
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| CN102423910A (en) * | 2011-11-15 | 2012-04-25 | 中国航空工业集团公司北京航空制造工程研究所 | Co-curing molding die for composite material with wallboard structure |
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| CN103542209A (en) * | 2013-10-28 | 2014-01-29 | 江苏吉星管业科技有限公司 | Ocean transporting floating flexible joint and preparation thereof |
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| CN107253334A (en) * | 2017-04-28 | 2017-10-17 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | The mould and technique of a kind of forming composite T-shaped stringer Material Stiffened Panel |
| CN112477190A (en) * | 2020-09-30 | 2021-03-12 | 浙江大学 | Integrated manufacturing process for hat-shaped stringer composite material wallboard |
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2021
- 2021-11-05 CN CN202111304901.6A patent/CN113997468A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120083844A (en) * | 2011-01-18 | 2012-07-26 | 후지필름 가부시키가이샤 | Flow casting die, method of manufacturing die head and method of manufacturing film |
| CN102423910A (en) * | 2011-11-15 | 2012-04-25 | 中国航空工业集团公司北京航空制造工程研究所 | Co-curing molding die for composite material with wallboard structure |
| CN103542209A (en) * | 2013-10-28 | 2014-01-29 | 江苏吉星管业科技有限公司 | Ocean transporting floating flexible joint and preparation thereof |
| CN106313376A (en) * | 2016-10-11 | 2017-01-11 | 中航复合材料有限责任公司 | Composite mold for integrally molding inner profile of ribbed composite wall panel |
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