CN117863596B - Curing monitoring system of composite material based on prepreg forming process - Google Patents
Curing monitoring system of composite material based on prepreg forming process Download PDFInfo
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- CN117863596B CN117863596B CN202410277867.5A CN202410277867A CN117863596B CN 117863596 B CN117863596 B CN 117863596B CN 202410277867 A CN202410277867 A CN 202410277867A CN 117863596 B CN117863596 B CN 117863596B
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- 238000000034 method Methods 0.000 title claims abstract description 105
- 239000002131 composite material Substances 0.000 title claims abstract description 100
- 238000012544 monitoring process Methods 0.000 title claims abstract description 74
- 238000000465 moulding Methods 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims description 59
- 238000010438 heat treatment Methods 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000741 silica gel Substances 0.000 claims description 9
- 229910002027 silica gel Inorganic materials 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims 1
- 239000011347 resin Substances 0.000 abstract description 20
- 229920005989 resin Polymers 0.000 abstract description 20
- 239000000835 fiber Substances 0.000 abstract description 7
- 230000001066 destructive effect Effects 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 230000007547 defect Effects 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 238000005056 compaction Methods 0.000 description 3
- 238000012806 monitoring device Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007723 die pressing method Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009489 vacuum treatment Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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Abstract
The invention provides a curing monitoring system of a composite material based on a prepreg forming process, which comprises an observation mechanism, monitoring equipment and a curing forming mechanism; the observation mechanism comprises an objective table and a plurality of observation windows, two mutually perpendicular dovetail grooves are designed on the objective table, each observation window comprises a transparent sheet and a sliding base which is arranged at the bottom of the corresponding transparent sheet and matched with the dovetail groove, and a composite material based on a prepreg forming process is laid on the objective table; the monitoring equipment comprises a camera and a monitoring terminal communicated with the camera, wherein the camera shoots the curing state of the composite material through each observation window and transmits image data to the monitoring terminal in real time. According to the invention, under the condition that the curing molding process of the composite material and the performance of a composite material workpiece are not affected by the cooperation of the observation mechanism and the monitoring equipment, the image and video recording is carried out on the resin flowing, the fiber compacting behavior and the like in the curing process of the composite material based on the prepreg molding process by a non-destructive method.
Description
Technical Field
The invention relates to a curing monitoring system of a composite material based on a prepreg forming process, and belongs to the technical field of composite material production.
Background
The composite material is widely applied to a plurality of industries due to the characteristics of light weight and high strength. The curing and forming process of the composite material involves the flowing of a resin matrix and the compaction of a fiber network, which has direct influence on the mechanical properties, defect formation and the like of a composite material workpiece, so that the curing process of the composite material workpiece needs to be observed and recorded, and the process optimization and the like are carried out according to the observation and recording.
The existing composite material curing monitoring devices are of the following two types: (1) A monitoring device for directly observing the change of the resin flow front to conduct resin flow observation, as in patent CN 218382257U; (2) The sensor is embedded in the composite material part, the signal change of the sensor is recorded in the resin flowing process in the curing process, and then the monitoring device for the resin flowing parameters is converted and analyzed. The existing two devices have respective limitations, and the device with the resin flowing front is not suitable for the prepreg forming process; the sensor recording method can only indirectly measure the parameter change of the resin flow, but cannot reflect the actual form of the resin flow, and meanwhile, the embedded sensor can influence the performance of the workpiece. The composite material part based on the prepreg forming process has the characteristics of high performance and low defect, is widely applied to composite material bearing members, and the flowing of a resin matrix and the compaction of a fiber network have great influence on the performance and the defect, so that a new system or device is needed to monitor the shape change of the resin and the fiber when the composite material part of the prepreg forming process is cured.
Disclosure of Invention
Aiming at the problems to be solved, the invention provides a curing monitoring system of a composite material based on a prepreg forming process, which is used for carrying out image and video recording on resin flow, fiber compaction behaviors and the like in the curing process of the composite material based on the prepreg forming process by a nondestructive method under the condition that the curing forming process of the composite material and the performance of a composite material workpiece are not affected by the cooperation of an observation mechanism and monitoring equipment.
In order to solve the technical problems, the invention provides a curing monitoring system of a composite material based on a prepreg forming process, which comprises an observation mechanism, monitoring equipment and a curing forming mechanism;
The observation mechanism comprises an objective table and a plurality of observation windows, wherein two mutually perpendicular dovetail grooves are designed on the objective table, the objective table is placed on a workbench of the curing and forming mechanism, each observation window comprises a transparent sheet and a sliding base which is arranged at the bottom of the corresponding transparent sheet and matched with the dovetail grooves, the corresponding observation window is positioned on the objective table through the matching of the sliding base and the dovetail grooves, after the observation window is positioned, the corresponding observation window is fixed on the objective table through bolts on the side surface of the objective table, and simultaneously, gaps between the transparent sheet and the sliding base and gaps between the objective table are filled by using high-temperature-resistant adhesive, and a plurality of composite materials based on a prepreg forming process are sequentially paved on the objective table from bottom to top;
The monitoring equipment comprises a camera and a monitoring terminal communicated with the camera, the monitoring terminal is located outside the curing and forming mechanism, the camera shoots a plurality of composite material curing states based on the prepreg forming process through each observation window and transmits image data to the monitoring terminal in real time, and the monitoring terminal receives and stores the image data in real time.
Preferably, the curing and forming mechanism is a heating device, the laid composite materials based on the prepreg forming process are sealed in a closed space formed by the vacuum bag and the observation mechanism through high-temperature glue, vacuumizing treatment is carried out, and the assembled observation mechanism, the composite materials based on the prepreg forming process and the vacuum bag are integrally placed on a workbench in the heating device.
Preferably, the number of the observation windows is two, and the sliding bases of the two observation windows are respectively matched with the two dovetail grooves on the objective table to position the corresponding observation windows on the objective table.
Preferably, the upper surface of the composite material based on the prepreg molding process far away from the objective table is further sequentially paved with a separation film, a silica gel layer and an airfelt from bottom to top, and the upper edge of the silica gel layer is higher than the upper edge of the observation window.
Preferably, the heating device is an autoclave, the assembled observation mechanism, the plurality of composite materials based on the prepreg forming process and the vacuum bag are integrally placed on a workbench in the autoclave, the camera is a high-temperature and high-pressure resistant camera, the high-temperature and high-pressure resistant camera is arranged in the autoclave, and the high-temperature and high-pressure resistant camera can shoot the curing state of the plurality of composite materials based on the prepreg forming process through two observation windows;
The monitoring terminal is a human-machine interface, the human-machine interface and the high-temperature and high-pressure resistant camera are in wired communication through a wired communication device, or the monitoring terminal is a mobile terminal, the high-temperature and high-pressure resistant camera transmits image data to a wireless communication device outside the autoclave through the wired communication device, and the wireless communication device is in wireless communication with the mobile terminal.
Preferably, the heating device is an oven, the assembled observation mechanism, the plurality of composite materials based on the prepreg forming process and the vacuum bag are integrally placed on a workbench in the oven, the camera is a high-temperature and high-pressure resistant camera, the high-temperature and high-pressure resistant camera is arranged in the oven, and the high-temperature and high-pressure resistant camera can shoot the curing state of the plurality of composite materials based on the prepreg forming process through two observation windows;
The monitoring terminal is a human-machine interface, the human-machine interface and the high-temperature and high-pressure resistant camera are in wired communication through a wired communication device, or the monitoring terminal is a mobile terminal, the high-temperature and high-pressure resistant camera transmits image data to a wireless communication device outside the oven through the wired communication device, and the wireless communication device is in wireless communication with the mobile terminal.
Preferably, the curing and forming mechanism is a mold, and the laid composite materials based on the prepreg forming process are placed in a space formed by the observation mechanism and the mold.
Preferably, the observation window of the observation mechanism is one, and the transparent sheet of the observation window is provided with a frame.
Preferably, the camera is arranged at one side of the outer part of the mould, which is close to the observation window, the camera can shoot the curing state of the composite materials based on the prepreg forming process through the observation window, the monitoring terminal is a human-computer interface or a mobile terminal, the human-computer interface and the camera are in wired communication through a wired communication device, the camera is provided with a wireless communication device, and the mobile terminal and the camera are in wireless communication.
Compared with the prior art, the invention has the following beneficial effects:
1. According to the invention, under the condition that the curing and forming process of the composite material and the performance of a composite material workpiece are not affected by the cooperation of the observation mechanism and the monitoring equipment, the image and video recording of resin flowing and fiber compacting behaviors in the curing process of the composite material based on the prepreg forming process is carried out by a non-destructive method, and the record provides a basis for the regulation and control of the forming quality and performance of the composite material.
2. The structure, the size and the position of the transparent sheet of the observation mechanism can be changed according to the size of the composite material part so as to adapt to different composite material parts.
3. The camera can be communicated with a wireless terminal, and the remote monitoring of the curing process of the composite material based on the prepreg forming process is realized.
Drawings
Fig. 1 is a schematic structural view of the present invention in the case where the curing and molding mechanism is a heating device.
Fig. 2 is a schematic structural view of the observation mechanism of the present invention (two observation windows are provided).
Fig. 3 is a schematic structural view of the present invention in the case where the curing and molding mechanism is a mold.
Fig. 4 is a schematic view of the structure of the observation mechanism of the present invention (an observation window is provided, and a transparent sheet is provided with a frame).
Reference numerals: the device comprises an observation mechanism 1, an objective table 11, a dovetail groove 12, a sliding base 13, a transparent sheet 14, a frame 15, a dovetail groove stop block 16, a heating device 2, a vacuum bag 3, a camera 4, a high-temperature and high-pressure resistant camera 41, a monitoring terminal 5, a workbench 6, a composite material 7 based on a prepreg forming process and a die 8.
Detailed Description
The present invention will be described in detail with reference to the following examples and drawings. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
Example 1
As shown in fig. 1 and 2, a curing monitoring system of a composite material based on a prepreg forming process comprises an observation mechanism 1, monitoring equipment and a curing forming mechanism;
The observation mechanism comprises an object stage 11 and a plurality of observation windows, two mutually perpendicular dovetail grooves 12 are designed on the object stage 11, dovetail groove stop blocks 16 are arranged on the two dovetail grooves 12, the object stage 11 is placed on a workbench 6 of the curing and forming mechanism, each observation window comprises a transparent sheet 14 and a sliding base 13 which is arranged at the bottom of the corresponding transparent sheet 14 and matched with the dovetail groove 12, the corresponding observation window is positioned on the object stage 11 through the matching of the sliding base 13 and the dovetail groove 12, after the observation window is positioned, the corresponding observation window is fixed on the object stage 11 through bolts on the side surface of the object stage 11, simultaneously, gaps between the transparent sheet 14 and the sliding base 13 and gaps between the object stage 11 are filled by using high-temperature-resistant adhesive, a plurality of composite materials 7 based on the prepreg forming process are sequentially paved on the object stage 11 from bottom to top, the positions of the observation windows on the object stage 11 can be adjusted through the sliding base 13, and meanwhile, the requirements of composite materials 7 based on the prepreg forming processes of different sizes can be met through changing the transparent sheets 14 of different structures and sizes.
The monitoring equipment comprises a camera 4 and a monitoring terminal 5 communicated with the camera 4, wherein the monitoring terminal 5 is positioned outside the curing and forming mechanism, the camera 4 shoots the curing states of a plurality of composite materials 7 based on the prepreg forming process through each observation window and transmits image data to the monitoring terminal 5 in real time, the monitoring terminal 5 receives and stores the images in real time, the defects such as gaps and the like in the resin flowing process are generated, evolved and distributed, the reinforcing phases such as fibers and the like are extruded and stacked and the like in the resin matrix are distributed and the flowing performance of the resin matrix is analyzed and researched in the curing process, and a reference basis is provided for the molding quality/performance regulation of the composite material components based on the prepreg forming process.
Preferably, the curing and forming mechanism is a heating device 2, the laid composite materials 7 based on the prepreg forming process are sealed in a closed space formed by the vacuum bag 3 and the observing mechanism 1 through high-temperature glue and vacuumized, the assembled observing mechanism 1, the composite materials 7 based on the prepreg forming process and the vacuum bag 3 are integrally placed on a workbench 6 in the heating device 2, preferably, two observing windows are arranged, and sliding bases 13 of the two observing windows are respectively matched with two dovetail grooves 12 on the objective table 11 to position the corresponding observing windows on the objective table 11.
Preferably, the upper surface of the composite material 7 based on the prepreg forming process far away from the objective table 11 is further sequentially paved with an isolating film, a silica gel layer and an air felt from bottom to top, the upper edge of the silica gel layer is higher than the upper edge of the observation window, the observation window is prevented from being damaged, meanwhile, the transmission of vacuum negative pressure is ensured, and the isolating film can effectively prevent the silica gel layer from being adhered to the composite material.
Preferably, the heating device 2 is an autoclave, the assembled observation mechanism 1, the plurality of composite materials 7 based on the prepreg forming process and the vacuum bag 3 are integrally placed on the workbench 6 in the autoclave, the camera 4 is a high-temperature and high-pressure resistant camera 41, the high-temperature and high-pressure resistant camera 41 is arranged in the autoclave, and the high-temperature and high-pressure resistant camera 41 can pick up the curing state of the plurality of composite materials 7 based on the prepreg forming process through two observation windows.
The monitoring terminal 5 is a human-machine interface, the human-machine interface and the high-temperature and high-pressure resistant camera 41 are in wired communication through a wired communication device, or the monitoring terminal 5 is a mobile terminal, the high-temperature and high-pressure resistant camera 41 transmits image data to a wireless communication device outside the autoclave through the wired communication device, the wireless communication device is in wireless communication with the mobile terminal, and the high-temperature and high-pressure resistant camera 41 transmits the image data to the mobile terminal in a wireless communication mode so as to realize remote monitoring.
Optionally, the heating device 2 is an oven, the assembled observation mechanism 1, the plurality of composite materials 7 based on the prepreg forming process and the vacuum bag 3 are integrally placed on a workbench in the oven, the camera 4 is a high-temperature and high-pressure resistant camera 41, the high-temperature and high-pressure resistant camera 41 is arranged in the oven, and the high-temperature and high-pressure resistant camera 41 can pick up the curing state of the plurality of composite materials 7 based on the prepreg forming process through two observation windows.
The monitoring terminal 5 is a human-machine interface, the human-machine interface and the high-temperature and high-pressure resistant camera 41 are in wired communication through a wired communication device, or the monitoring terminal 5 is a mobile terminal, the high-temperature and high-pressure resistant camera 41 transmits image data to a wireless communication device outside the oven through the wired communication device, the wireless communication device is in wireless communication with the mobile terminal, and the high-temperature and high-pressure resistant camera 41 transmits the image data to the mobile terminal in a wireless communication mode so as to realize remote monitoring.
The monitoring method comprises the following steps:
1. Placing the objective table on a workbench 6 in an autoclave or an oven, spraying a release agent or paving a separation film and release cloth on the objective table 11, paving the composite material 7 based on the prepreg forming process on the objective table, positioning the observation windows according to the paving position of the composite material 7 based on the prepreg forming process, and then taking out the composite material 7 based on the prepreg forming process.
2. After the positioning is completed, the gaps between the transparent sheet 14 and the sliding base 13 and the gaps between the sliding base 13 and the objective table 11 are filled with the high-temperature-resistant adhesive, and the high-temperature-resistant adhesive is waited for complete curing, for example, repeated tests are carried out on the composite material 7 based on the prepreg forming process with similar size and structure, the high-temperature-resistant adhesive does not need to be filled repeatedly, and the composite material 7 based on the prepreg forming process is laid according to the positioned objective table 11 and the observation window position.
3. After the high-temperature-resistant curing adhesive is cured, a plurality of composite materials 7 based on a prepreg forming process are paved again, after the composite materials 7 based on the prepreg forming process are paved, the composite materials 7 based on the prepreg forming process are sealed in a closed space formed by the vacuum bag 3 and the observation mechanism 1 through the high-temperature adhesive and are subjected to vacuum treatment, in order to realize better flow process observation, an isolating film, a silica gel layer and an air-felt are paved on the upper surface of the composite materials 7 based on the prepreg forming process, which are far away from the objective table 11, the upper edge of the silica gel layer is higher than the upper edge of the observation window, and the vacuum bag 3 is sealed along the upper edge of the transparent sheet so as to ensure the transmission of vacuum negative pressure.
4. The assembled observation mechanism 1, the plurality of composite materials 7 based on the prepreg forming process and the vacuum bag 3 are integrally placed on a workbench 6 placed in an autoclave or an oven, and then a high-temperature-resistant camera 41 is arranged in the autoclave or the oven, and the high-temperature-resistant camera 41 shoots the curing process of the plurality of composite materials 7 based on the prepreg forming process in a short distance through a transparent sheet 14 of an observation window.
5. The high temperature resistant camera 41 transmits the image data to the monitoring terminal 5 in real time, the monitoring terminal 5 receives the image data and stores the image data for research, when the monitoring terminal 5 is a human-computer interface, the human-computer interface and the high temperature resistant camera 41 perform wired communication through a wired communication device, or the monitoring terminal 5 is a mobile terminal, the high temperature resistant camera 41 transmits the image data to a wireless communication device outside the oven/autoclave through the wired communication device, and the wireless communication device performs wireless communication with the mobile terminal to realize remote monitoring.
6. After curing and forming a plurality of composite materials 7 based on the prepreg forming process, after storing the image data, taking out the observation mechanism 1, demolding the composite material 7 based on the prepreg forming process, if the device positioning is not needed to be changed, cleaning the superfluous resin flowing out in the curing process, if the positioning of an observation window is needed to be changed, removing the superfluous resin and the curing glue together, then disassembling the sliding base 13 and the transparent sheet 14, and repositioning the composite material in the next monitoring.
Example 2
As shown in fig. 3 and 4, preferably, the curing and forming mechanism is a mold 8, and a plurality of composite materials 7 based on prepreg forming process which are laid up are placed in a space formed by the observation mechanism 1 and the mold 8.
Preferably, the number of the observation windows of the observation mechanism 1 is one, and a single observation window is used because of uneven pressure of die pressing, the transparent sheet 14 of the observation window is provided with the frame 15, and in the die pressing process, the transparent sheet 14 is easily pressed and damaged because of overlarge lateral pressure, so that the transparent sheet 14 is reinforced by the frame 15.
Preferably, the camera 4 is disposed at one side of the mold 8, which is close to the observation window, the camera 4 can shoot the curing states of the composite materials 7 based on the prepreg molding process through the observation window, the monitoring terminal 5 is a human-machine interface or a mobile terminal, the human-machine interface and the camera are in wired communication through a wired communication device, the camera 4 is provided with a wireless communication device, the mobile terminal and the camera 4 are in wireless communication, and the camera 4 transmits the image data to the mobile terminal in a wireless communication manner so as to realize remote monitoring.
Other structures of this embodiment are the same as those of the first embodiment, and will not be described again.
The monitoring steps are as follows:
1. Placing the objective table on a workbench 6 of a die 8, spraying a release agent or paving a separation film and release cloth on the objective table 11, paving the composite material 7 based on the prepreg forming process on the objective table 11, positioning an observation window according to the paving position of the composite material 7 based on the prepreg forming process, setting the observation window, and then taking out the composite material 7 based on the prepreg forming process.
2. After the positioning of the observation window, the gap between the transparent sheet 14 and the slide base 13 and the gap between the slide base 13 and the stage 11 are filled with a high-temperature-resistant adhesive, and a frame 15 is provided on the transparent sheet 14.
3. After the high-temperature-resistant curing glue is cured, a plurality of composite materials 7 based on a prepreg forming process are paved again.
4. And (3) assembling and laying the observation mechanism 1 and the mold 8 of the composite material 7 based on the prepreg forming process, arranging the camera 4 on one side, close to an observation window, of the exterior of the mold 8, and photographing a plurality of curing processes of the composite material 7 based on the prepreg forming process by the camera 4 in a short distance through the transparent sheet 14 of the observation window.
5. The camera 4 transmits the image data to the monitoring terminal 5 in real time, the monitoring terminal 5 receives the image data and stores the image data for research, the monitoring terminal 5 can be a mobile terminal, the camera 4 and the mobile terminal are in wireless communication, and the camera 4 transmits the image data to the mobile terminal in a wireless communication mode so as to realize remote monitoring.
6. After the curing and molding of the composite material 7 part based on the prepreg molding process are completed, the observation mechanism 1 is taken out and the composite material 7 part based on the prepreg molding process is demolded, if the device positioning is not needed to be changed, the excessive resin flowing out in the curing process is cleaned, if the positioning of an observation window is needed to be changed, the excessive resin and the curing glue are removed together, the sliding base 13 and the transparent sheet 14 are disassembled, and the repositioning is performed in the next monitoring.
The foregoing is a further detailed description of the invention in connection with specific preferred embodiments, and is not intended to limit the practice of the invention to such description. It will be apparent to those skilled in the art that several simple deductions and substitutions can be made without departing from the spirit of the invention, and these are considered to be within the scope of the invention.
Claims (9)
1. The curing monitoring system of the composite material based on the prepreg forming process is characterized by comprising an observation mechanism (1), monitoring equipment and a curing forming mechanism;
The observation mechanism (1) comprises an object stage (11) and a plurality of observation windows, two mutually perpendicular dovetail grooves (12) are designed on the object stage (11), the object stage (11) is placed on a workbench (6) of the curing and forming mechanism, each observation window comprises a transparent sheet (14) and a sliding base (13) which is arranged at the bottom of the corresponding transparent sheet (14) and is matched with the dovetail grooves (12), the corresponding observation window is positioned on the object stage (11) through the matching of the sliding base (13) and the dovetail grooves (12), after the observation window is positioned, the corresponding observation window is fixed on the object stage (11) through bolts on the side surface of the object stage (11), and simultaneously, gaps between the transparent sheet (14) and the sliding base (13) and gaps between the sliding base (13) and the object stage (11) are filled up, and a plurality of composite materials (7) based on a prepreg forming process are laid on the object stage (11) in sequence from bottom to top;
The monitoring equipment comprises a camera (4) and a monitoring terminal (5) communicated with the camera (4), the monitoring terminal (5) is located outside the curing and forming mechanism, the camera (4) shoots the curing states of a plurality of composite materials (7) based on the prepreg forming process through each observation window and transmits image data to the monitoring terminal (5) in real time, and the monitoring terminal (5) receives and stores the image data in real time.
2. A curing monitoring system for a composite material based on a prepreg forming process according to claim 1, wherein the curing forming mechanism is a heating device (2), a plurality of laid composite materials (7) based on the prepreg forming process are sealed in a closed space formed by a vacuum bag (3) and an observation mechanism (1) through high-temperature glue and vacuumized, and the assembled observation mechanism (1), the plurality of composite materials (7) based on the prepreg forming process and the vacuum bag (3) are integrally placed on a workbench (6) in the heating device (2).
3. A curing monitoring system for a composite material based on a prepreg moulding process according to claim 2, wherein the number of the observation windows is two, and the sliding bases (13) of the two observation windows are matched with the two dovetail grooves (12) on the objective table (11) respectively to position the corresponding observation windows on the objective table (11).
4. A curing monitoring system for a prepreg-forming-process-based composite material according to claim 3, characterized in that a barrier film, a silica gel layer and an airfelt are sequentially laid on the upper surface of the prepreg-forming-process-based composite material (7) away from the stage (11) from bottom to top, and the upper edge of the silica gel layer is higher than the upper edge of the observation window.
5. The curing monitoring system of the composite material based on the prepreg forming process according to claim 4, wherein the heating device (2) is an autoclave, the assembled observation mechanism (1), the plurality of composite materials (7) based on the prepreg forming process and the vacuum bag (3) are integrally placed on a workbench (6) in the autoclave, the camera (4) is a high-temperature and high-pressure resistant camera (41), the high-temperature and high-pressure resistant camera (41) is arranged in the autoclave, and the high-temperature and high-pressure resistant camera (41) can pick up the curing state of the plurality of composite materials (7) based on the prepreg forming process through two observation windows;
The monitoring terminal (5) is a human-machine interface, the human-machine interface and the high-temperature and high-pressure resistant camera (41) are in wired communication through a wired communication device, or the monitoring terminal (5) is a mobile terminal, the high-temperature and high-pressure resistant camera (41) transmits image data to a wireless communication device outside the autoclave through the wired communication device, and the wireless communication device is in wireless communication with the mobile terminal.
6. The curing monitoring system of the composite material based on the prepreg forming process according to claim 4, wherein the heating device is an oven, the assembled observation mechanism (1), the plurality of composite materials (7) based on the prepreg forming process and the vacuum bag (3) are integrally placed on a workbench in the oven, the camera (4) is a high-temperature and high-pressure resistant camera (41), the high-temperature and high-pressure resistant camera (41) is arranged in the oven, and the high-temperature and high-pressure resistant camera (41) can pick up the curing state of the plurality of composite materials (7) based on the prepreg forming process through two observation windows;
The monitoring terminal (5) is a human-machine interface, the human-machine interface and the high-temperature and high-pressure resistant camera (41) are in wired communication through a wired communication device, or the monitoring terminal (5) is a mobile terminal, the high-temperature and high-pressure resistant camera (41) transmits image data to a wireless communication device outside the oven through the wired communication device, and the wireless communication device is in wireless communication with the mobile terminal.
7. A curing monitoring system for a composite material based on a prepreg moulding process according to claim 1, wherein the curing and moulding mechanism is a mould (8), and a plurality of laid composite materials (7) based on the prepreg moulding process are placed in a space formed by the observation mechanism (1) and the mould (8).
8. A curing monitoring system for a composite material based on a prepreg moulding process according to claim 7, wherein the viewing window of the viewing mechanism (1) is one, and the transparent sheet (14) of the viewing window is provided with a frame (15).
9. The curing monitoring system of the composite material based on the prepreg forming process according to claim 8, wherein the camera (4) is arranged on one side, close to the observation window, of the exterior of the mold (8), the camera (4) can shoot the curing states of a plurality of composite materials (7) based on the prepreg forming process through the observation window, the monitoring terminal (5) is a human-computer interface or a mobile terminal, the human-computer interface and the camera are in wired communication through a wired communication device, the camera (4) is provided with a wireless communication device, and the mobile terminal and the camera (4) are in wireless communication.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116930248A (en) * | 2023-06-16 | 2023-10-24 | 东华大学 | Device and method for measuring shrinkage performance of resin and composite material thereof |
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| US4831881A (en) * | 1988-01-15 | 1989-05-23 | Korea Institute Of Machinery & Metals | Continuous monitering system for compaction behavior of composite laminates in autoclave curing |
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| CN104183188A (en) * | 2013-05-21 | 2014-12-03 | 北京有色金属研究总院 | Visual simulation device for metal semi-solid slurry mold filling process and method |
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