CN220219761U - RTM (resin transfer molding) die for forming sandwich composite material - Google Patents
RTM (resin transfer molding) die for forming sandwich composite material Download PDFInfo
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- CN220219761U CN220219761U CN202321459390.XU CN202321459390U CN220219761U CN 220219761 U CN220219761 U CN 220219761U CN 202321459390 U CN202321459390 U CN 202321459390U CN 220219761 U CN220219761 U CN 220219761U
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- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 229920005989 resin Polymers 0.000 title abstract description 16
- 239000011347 resin Substances 0.000 title abstract description 16
- 238000001721 transfer moulding Methods 0.000 title abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 239000003292 glue Substances 0.000 claims description 41
- 238000002347 injection Methods 0.000 claims description 32
- 239000007924 injection Substances 0.000 claims description 32
- 238000000465 moulding Methods 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 16
- 239000004744 fabric Substances 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 5
- 239000002356 single layer Substances 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 6
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- 230000007547 defect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920001153 Polydicyclopentadiene Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011160 polymer matrix composite Substances 0.000 description 2
- 229920013657 polymer matrix composite Polymers 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 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 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 240000007182 Ochroma pyramidale Species 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000011157 advanced composite material Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
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- 239000000919 ceramic Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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- 229920001778 nylon Polymers 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
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- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001709 polysilazane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- 238000012827 research and development Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model provides a sandwich composite material forming RTM (resin transfer molding) die, which comprises an RTM upper die, an RTM lower die and a plurality of combined die cavity mechanisms; the thickness of the combined die cavity mechanisms is different; the combined die cavity mechanism comprises a first die cavity short frame, a first die cavity long frame, a second die cavity short frame and a second die cavity long frame; the first die cavity short frame, the first die cavity long frame, the second die cavity short frame and the second die cavity long frame are surrounded to form a combined die cavity mechanism; an upper die of the RTM die, a combined die cavity mechanism and a lower die of the RTM die are encircled to form a die cavity; the utility model designs a plurality of combined die cavity mechanisms with different thicknesses, and the upper die of the RTM die, the single combined die cavity mechanism and the lower die of the RTM die are detachably designed, so that the single combined die cavity mechanism is only required to be replaced for different thickness requirements, the whole die is not required to be replaced, and the adaptability of the die is improved.
Description
Technical Field
The utility model relates to the field of composite material structure appearance part molding and mold manufacturing thereof, in particular to a sandwich composite material integral molding technology and a two-dimensional three-axis sandwich composite material integral molding technology, belongs to the technical field of advanced composite material molding and manufacturing, and in particular relates to a variable-thickness sandwich composite material molding RTM (resin transfer molding, namely Resin Transfer Molding) mold, in particular to a sandwich composite material molding RTM mold.
Background
The dimensional reinforced polymer matrix composite material has the advantages of light weight, high specific strength, high specific modulus, corrosion resistance, fatigue resistance, strong designability and the like, so that the dimensional reinforced polymer matrix composite material is widely focused in the fields of emerging high-end traffic equipment such as aviation, high-speed rail, lightweight fuel-saving automobiles, new energy automobiles and the like. The amount of the composite material is gradually increased along with the development of the times, however, the high cost of the composite material restricts the application and popularization of the composite material. It is counted that 70% of the cost of the aviation composite components is derived from manufacturing, and reducing the manufacturing cost is a key to breaking through the development bottleneck of the composite. The non-autoclave manufacturing technology represented by the liquid forming technology has become the main direction of research at home and abroad by virtue of a plurality of advantages, and is widely applied to the aerospace field. The composite material liquid forming technology is to inject liquid resin into a closed die cavity on which a fiber reinforced material preformed body is laid, flow the liquid resin to infiltrate the fiber preformed body in the die cavity, remove gas in the die cavity, and finish the preparation process of forming a composite material product under a preset temperature program. In recent years, low-cost liquid molding techniques typified by Resin Transfer Molding (RTM) techniques have become an important point of research and development in the field of aviation composite material manufacturing. Further development in materials and manufacturing opens up its way to expedite production; using automated equipment and non-autoclave processing (AFP automatic wire laying, automatic tape laying), fiber-reinforced polymer-based composite parts of higher quality can be produced more rapidly, making them a cost-effective option for the production of aircraft, automobiles, and the like.
However, the current composite material mold design is mostly based on metal mold design, and the mold is only suitable for single thickness requirement, so that the problem of poor thickness adaptability exists, namely, the requirement on different thicknesses is that a plurality of integral molds need to be prepared.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide an RTM (resin transfer molding) die for molding a sandwich composite material.
The utility model provides a sandwich composite material forming RTM mould, which comprises an RTM mould upper mould, an RTM mould lower mould and a plurality of combined mould cavity mechanisms; the thickness of the combined die cavity mechanisms is different;
the upper die of the RTM die, the single combined die cavity mechanism and the lower die of the RTM die are sequentially and detachably arranged from top to bottom;
the upper die of the RTM die and the lower die of the RTM die are arranged in mirror symmetry;
the combined die cavity mechanism comprises a first die cavity short frame, a first die cavity long frame, a second die cavity short frame and a second die cavity long frame; the first die cavity short frame, the first die cavity long frame, the second die cavity short frame and the second die cavity long frame are surrounded to form a combined die cavity mechanism;
the RTM upper die, the combined die cavity mechanism and the RTM lower die are surrounded to form a die cavity; the cavity is used for accommodating a blank to be processed.
Preferably, the upper die of the RTM die and the lower die of the RTM die both comprise a frame structure and a base station with a die drawing chamfer;
the base is positioned in the center of the frame structure, and the frame structure is provided with a positioning pin and a mounting hole;
the base is provided with a glue injection hole which is communicated with the outside and the cavity;
the base station of the upper die of the RTM die, the combined die cavity mechanism and the base station of the lower die of the RTM die are surrounded to form a die cavity.
Preferably, the side of the frame structure is provided with a hoisting threaded hole.
Preferably, a sealing ring groove is arranged between the frame structure and the base station, and the sealing ring groove is used for accommodating a sealing ring.
Preferably, the upper die of the RTM die is also provided with a thermocouple temperature measuring hole.
Preferably, a plurality of layers of adhesive release cloth are adhered on the base.
Preferably, the combined die cavity mechanism is provided with a glue injection port, a glue outlet, a Z-direction die cavity sealing groove and a frame fastening threaded hole;
the glue injection port and the glue outlet are respectively arranged on the long frame of the second die cavity and the long frame of the first die cavity, and the glue injection port and the glue outlet are symmetrically arranged; the glue injection port and the glue outlet are communicated with the outside and the cavity;
the Z-direction die cavity sealing groove is used for accommodating the sealing gasket;
the first die cavity short frame, the first die cavity long frame, the second die cavity short frame and the second die cavity long frame form a combined die cavity mechanism through the matching structure of frame fastening threaded holes and screws.
Preferably, the die further comprises a die hoisting mechanism and a fastening bolt;
the die hoisting mechanism is matched with the hoisting threaded hole; the fastening bolt is matched with the fastening bolt through hole.
Preferably, the plurality of combined mold cavity mechanisms are combined mold cavity mechanisms of different integer thicknesses.
Preferably, the single layer thickness of the adhesive release cloth is 0.1-0.5mm.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model designs a plurality of combined die cavity mechanisms with different thicknesses, and the upper die of the RTM die, the single combined die cavity mechanism and the lower die of the RTM die are detachably designed, so that for different thickness requirements, only the single combined die cavity mechanism is required to be replaced, the whole die is not required to be replaced, the adaptability of the die is improved, and the problem of poor thickness adaptability of the current metal die is solved.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of an upper die of an RTM die of the present utility model;
FIG. 2 is a schematic side view of FIG. 1;
FIG. 3 is a schematic view of a combined mold cavity mechanism;
FIG. 4 is a schematic diagram of the lower die of the RTM die of the present utility model;
FIG. 5 is a cross-sectional illustration of the present utility model;
FIG. 6 is a schematic diagram of thermocouple temperature measurement hole locations.
The figure shows:
Detailed Description
The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.
The utility model provides a sandwich composite material forming RTM (resin transfer molding) die, which is shown in figures 1-6 and comprises an RTM upper die 1, an RTM lower die 2 and a plurality of combined die cavity mechanisms 30; the thickness of the plurality of combined type cavity mechanisms 30 is different, and the plurality of combined type cavity mechanisms 30 are combined type cavity mechanisms 30 with different integer thicknesses (1 mm-20 mm).
As shown in fig. 2-5, the RTM upper die 1, the single combined die cavity mechanism 30 and the RTM lower die 2 are detachably arranged in sequence from top to bottom; the upper die 1 of the RTM die and the lower die 2 of the RTM die are arranged in mirror symmetry; as shown in fig. 3, the combined mold cavity mechanism 30 includes a first mold cavity short frame 3, a first mold cavity long frame 4, a second mold cavity short frame 7, and a second mold cavity long frame 8; the first die cavity short frame 3, the first die cavity long frame 4, the second die cavity short frame 7 and the second die cavity long frame 8 are surrounded to form a combined die cavity mechanism 30; the RTM upper die 1, the combined die cavity mechanism 30 and the RTM lower die 2 are encircled to form a die cavity 13; the cavity 13 is intended to receive a blank to be machined. It should be noted that, since the plurality of combined mold cavity mechanisms 30 are combined mold cavity mechanisms 30 with different integer thicknesses (1 mm-20 mm), the first mold cavity short frame 3, the first mold cavity long frame 4, the second mold cavity short frame 7, and the second mold cavity long frame 8 are frames with different integer thicknesses (1 mm-20 mm).
As shown in fig. 1, 2 and 4, the upper RTM die 1 and the lower RTM die 2 each include a frame structure 40 and a base 19 with a die drawing chamfer; the base 19 is located at the center of the frame structure 40, and the frame structure 40 is provided with a positioning pin 17 and a mounting hole 20; in a preferred embodiment, the draft chamfer is 0.5-2 °; the positioning pin 17 is used for realizing the installation of the conical guide limit matching surface of the upper die 1, the lower die 2 and the variable-thickness combined die cavity mechanism of the die; the mounting holes 20 are fastening bolt through holes, the mounting holes 20 of the upper die and the mounting holes 20 of the lower die are symmetrically arranged, and the mounting holes 20 are used for integrally fastening the dies.
The base 19 is provided with a glue injection hole 18, and the glue injection hole 18 is communicated with the outside and the cavity 13; the base 19 of the upper RTM mold 1, the combined cavity mechanism 30, and the base 19 of the lower RTM mold 2 surround the cavity 13. In a preferred embodiment, the glue injection hole is a long-range glue injection hole
The side of the frame structure 40 is provided with a hoisting threaded hole 9. A seal ring groove 16 is arranged between the frame structure 40 and the base 19, the seal ring groove 16 is used for accommodating a seal ring, and tightness of the closed die is realized through the seal ring.
As shown in fig. 6, the upper die 1 of the RTM die is further provided with a thermocouple temperature measuring hole 11. The thermocouple temperature measuring hole 11 is used for matching with a thermocouple so as to realize the monitoring of the temperature of the die. The thermocouple temperature measuring hole 11 is machined and realized by CNC five-axis machining center and the like.
A plurality of layers of adhesive release cloth are adhered to the base 19. The single-layer thickness of the adhesive release cloth is 0.1-0.5mm, and the dynamic adjustability of the die cavity 13 of the die is realized by combining the multiple layers of adhesive release cloth, and the adjustment precision is 0.1mm. In a preferred embodiment, the single layer thickness of the adhesive release cloth is 0.1mm.
The combined die cavity mechanism 30 is provided with a glue injection port 5, a glue outlet 6, a Z-direction die cavity sealing groove 14 and a frame fastening threaded hole 15;
the glue injection port 5 and the glue outlet 6 are respectively arranged on the long frame 8 of the second die cavity and the long frame 4 of the first die cavity, and the glue injection port 5 and the glue outlet 6 are symmetrically arranged; the glue injection port 5 and the glue outlet port 6 are communicated with the outside and the cavity 13; the glue injection port 5 is short-range glue injection, and the glue outlet 6 is short-range glue outlet. The Z-direction cavity seal groove 14 is used for accommodating a sealing gasket;
the first die cavity short frame 3, the first die cavity long frame 4, the second die cavity short frame 7 and the second die cavity long frame 8 form a combined die cavity mechanism 30 through the matching structure of the frame fastening threaded holes 15 and screws.
The RTM die for forming the sandwich composite material further comprises a die hoisting mechanism 10 and a fastening bolt 12; the die hoisting mechanism 10 is matched with the hoisting threaded hole 9, and the using threads are all metric screw pitches. The fastening bolt 12 is fitted with the mounting hole 20. The installation and the fastening fit of the integral die are realized.
In a preferred embodiment, the combined mold cavity mechanism 30 is specifically manufactured by a CNC five axis machining center or the like; the bolt and the Z-ring are purchased through commercialized purchase. The method is characterized in that a CNC five-axis machining center machining is used for realizing the upper die main body of the die, and a hoisting threaded hole 9, a sealing ring groove 16, a long-range glue injection hole 18, a base 19 with a die drawing chamfer and a mounting hole 20 are also realized by the CNC five-axis machining center and other modes; the bolts and the sealing rings are purchased through commercialization.
In a preferred embodiment, the blank to be processed is a preformed composite reinforced preform of a formable sandwich composite material, which comprises traditional reinforced fibers such as glass fibers, carbon fibers, aramid fibers, fibrilia and the like and a preform manufactured singly or in combination by matching ceramic fibers such as silicon carbide fibers, alumina fibers and the like with a sandwich, wherein the preform can be in the form of a conventional unidirectional fabric, a woven fabric, a warp-knitted fabric layering sandwich or a 2.5D woven sandwich fabric, a 3-dimensional woven fabric and the like, and the sandwich material can be foam, honeycomb, balsa, substituted wood, a polymer plate and the like. The resin used for forming the reinforced preform of the sandwich composite material comprises epoxy resin, pouring nylon resin, novel liquid thermoplastic resin of El ium, bismaleimide resin, thermosetting RTM forming polyimide, cyanate resin for RTM technology, polysilazane resin, polydicyclopentadiene PDCPD liquid forming resin and the like.
The working principle of the utility model is as follows:
selecting a combined die cavity mechanism 30 with different thicknesses and the number of layers of adhesive demolding cloth according to the blank to be processed and the final process requirements to form a die; the blank to be processed is placed into a cavity 13, and the cavity 13 is injected with glue through the glue injection holes 18 on the upper die 1 of the RTM die and the lower die 2 of the RTM die and the glue injection port 5 on the combined die cavity mechanism 30, so that the blank to be processed is processed. The combined die cavity mechanism 30 with different thicknesses is selected according to different thickness requirements, and the thickness can be finely and dynamically adjusted by adjusting the number of layers of the adhesive release cloth, so that the adjustment precision of the adhesive release cloth is 0.1mm.
The utility model adopts P20 steel, H13 and other high-performance steel, and combines the pressure-resistant requirement of the conventional VARTM (vacuum assisted RTM) and the liquid forming mode of the single-component and double-component RTM glue injection machine composite materials of the matcher. The utility model can realize multi-directional (longitude and latitude) injection of the mould, realize the advantage of multi-functional injection of the mould, and realize the collaborative injection of a plurality of glue injection ports to shorten the RTM injection period.
The utility model designs a combined die for closing a six-piece combined die block of a die cavity, and conical guide limit matching surfaces are arranged between the die blocks. The method has the advantages that the continuous rapid and stable molding of the variable-thickness (namely multiple-thickness) sandwich composite material can be realized, the molding method ensures that the variable-thickness sandwich composite material not only meets the requirement of structural strength and rigidity, but also is suitable for integral manufacturing of complex structures, meanwhile, the composite material product with extremely complex shape can be integrally molded, and the problem that the conventional composite material is difficult to form rapid integral molding due to the fact that the molding of the conventional composite material is mostly single-piece independent molding is solved. Besides, the multi-direction (longitude and latitude) injection function is realized, and the multi-function injection advantage of the die can be realized.
The utility model overcomes the defect of single design of the existing metal mold, and realizes the adaptability difference problem of the liquid forming mold based on PAM-RTM flow field simulation design. The design method realizes the design through the flow field simulation design and the model optimization method, and reduces the reworking and repairing cost of the die. The utility model realizes the advantages of ensuring that the variable-thickness sandwich composite material not only meets the requirement of structural strength and rigidity, but also is suitable for the integral manufacturing of complex structures, and simultaneously can obtain the smooth surface (A-level surface) without dents. The utility model has high dynamic relevance, realizes high-efficiency utilization of equipment, and can greatly reduce operation cost. The utility model can be expanded to the integral molding of composite material preforms with complex abnormal structures.
The utility model overcomes the defect of single function and die design in the prior art, and can realize the integral molding of liquid molding of various sandwich composite materials. The method has the advantages of high production efficiency, high product quality and high batch performance stability of manufactured products such as airplanes, automobiles and the like.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.
The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.
Claims (10)
1. The RTM die for forming the sandwich composite material is characterized by comprising an RTM die upper die (1), an RTM die lower die (2) and a plurality of combined die cavity mechanisms (30); the thickness of the combined die cavity mechanisms (30) is different;
the upper die (1) of the RTM die, the single combined die cavity mechanism (30) and the lower die (2) of the RTM die are sequentially and detachably arranged from top to bottom;
the upper die (1) of the RTM die and the lower die (2) of the RTM die are arranged in mirror symmetry;
the combined die cavity mechanism (30) comprises a first die cavity short frame (3), a first die cavity long frame (4), a second die cavity short frame (7) and a second die cavity long frame (8); the first die cavity short frame (3), the first die cavity long frame (4), the second die cavity short frame (7), the second die cavity long frame (8) are surrounded to form a combined die cavity mechanism (30);
the RTM upper die (1), the combined die cavity mechanism (30) and the RTM lower die (2) are surrounded to form a die cavity (13); the cavity (13) is used for accommodating a blank to be processed.
2. The sandwich composite material forming RTM die of claim 1, wherein the RTM die upper die (1) and RTM die lower die (2) each comprise a frame structure (40) and a base (19) with a draft chamfer;
the base (19) is positioned in the center of the frame structure (40), and the frame structure (40) is provided with a positioning pin (17) and a mounting hole (20);
the base (19) is provided with a glue injection hole (18), and the glue injection hole (18) is communicated with the outside and the cavity (13);
a base (19) of the upper RTM mold (1), a combined mold cavity mechanism (30) and a base (19) of the lower RTM mold (2) are surrounded to form a mold cavity (13).
3. The sandwich composite material forming RTM die of claim 2, characterized in that the side of the frame structure (40) is provided with lifting screw holes (9).
4. The sandwich composite material molding RTM mold according to claim 2, characterized in that a sealing ring groove (16) is provided between the frame structure (40) and the base station (19), the sealing ring groove (16) being adapted to accommodate a sealing ring.
5. The RTM die for molding the sandwich composite material according to claim 1, wherein a thermocouple temperature measuring hole (11) is further formed on the upper die (1) of the RTM die.
6. The RTM die for molding a sandwich composite material according to claim 2, wherein a plurality of layers of adhesive release cloth are adhered to the base (19).
7. The RTM die for forming the sandwich composite material according to claim 1, wherein the combined die cavity mechanism (30) is provided with a glue injection port (5), a glue outlet port (6), a Z-direction die cavity sealing groove (14) and a frame fastening threaded hole (15);
the glue injection port (5) and the glue outlet (6) are respectively arranged on the second die cavity long frame (8), the first die cavity long frame (4), and the glue injection port (5) and the glue outlet (6) are symmetrically arranged; the glue injection port (5) and the glue outlet (6) are communicated with the outside and the cavity (13);
the Z-direction die cavity sealing groove (14) is used for accommodating the sealing gasket;
the first die cavity short frame (3), the first die cavity long frame (4), the second die cavity short frame (7) and the second die cavity long frame (8) form a combined die cavity mechanism (30) through a matching structure of frame fastening threaded holes (15) and screws.
8. The sandwich composite material molding RTM mold of claim 3, further comprising a mold lifting mechanism (10), a fastening bolt (12);
the die hoisting mechanism (10) is matched with the hoisting threaded hole (9); the fastening bolt (12) is matched with the mounting hole (20).
9. The sandwich composite material molding RTM mold of claim 1, wherein the plurality of combined mold cavity mechanisms (30) are combined mold cavity mechanisms (30) of different integer thicknesses.
10. The sandwich composite material forming RTM mold of claim 6, wherein the rubberized release fabric monolayer thickness is 0.1-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321459390.XU CN220219761U (en) | 2023-06-08 | 2023-06-08 | RTM (resin transfer molding) die for forming sandwich composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321459390.XU CN220219761U (en) | 2023-06-08 | 2023-06-08 | RTM (resin transfer molding) die for forming sandwich composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220219761U true CN220219761U (en) | 2023-12-22 |
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ID=89195157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321459390.XU Active CN220219761U (en) | 2023-06-08 | 2023-06-08 | RTM (resin transfer molding) die for forming sandwich composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220219761U (en) |
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2023
- 2023-06-08 CN CN202321459390.XU patent/CN220219761U/en active Active
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