CN215359987U - Medium-temperature curing device for repairing resin-based composite material - Google Patents
Medium-temperature curing device for repairing resin-based composite material Download PDFInfo
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- CN215359987U CN215359987U CN202120839390.7U CN202120839390U CN215359987U CN 215359987 U CN215359987 U CN 215359987U CN 202120839390 U CN202120839390 U CN 202120839390U CN 215359987 U CN215359987 U CN 215359987U
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Abstract
The utility model relates to the technical field of composite material repairing and curing, and aims to solve the problems that equipment such as an autoclave, a hot repair instrument and an oven are complex in maintenance and high in maintenance cost and are not adaptive to complex components in the prior art for repairing civil aircraft composite material components, and the resin-based composite material repairing medium-temperature curing device comprises a box body, wherein an opening is formed in the box body, the opening is adaptive to a to-be-repaired area of the to-be-repaired component, a hot air device is arranged on the box body and used for introducing hot air into the box body, and a hot air outlet is formed in the box body; the utility model has the beneficial effects that: the device simple structure, low cost, and can be according to waiting to mend size and the interim preparation of shape of component at the maintenance scene, set up the opening with waiting to mend the component looks adaptation on the box, carry out the thermosetting repair to the component, have on-the-spot preparation time short, adapt to the component of different structural shapes, solidification advantage such as effectual.
Description
Technical Field
The utility model relates to the technical field of composite material curing, in particular to a medium-temperature curing device for repairing a resin-based composite material.
Background
In the repair of civil aircraft composite components, thermosetting techniques are most widely used. At present, most of domestic civil aircraft composite material members are maintained by using equipment such as an autoclave, a hot patching instrument, an oven and the like to carry out thermosetting on resin-based composite materials.
However, the problems of complex maintenance equipment, high maintenance cost, difficult tank entry of complex components and the like exist in the maintenance of the autoclave; the problems of difficult coverage and heating, large temperature gradient and the like of the electric blanket exist in the maintenance of the hot patching instrument; the finished product oven is not suitable for field maintenance due to the fact that the finished product oven cannot adapt to the complex structural shape of the piece to be repaired.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a medium-temperature curing device for repairing a resin-based composite material, which aims to solve the defects of the field repair of civil aircraft composite material members by adopting equipment such as an autoclave, a hot repair instrument, an oven and the like, wherein the problems of complex maintenance equipment, high maintenance cost, difficult tank entry of complex members and the like exist in the autoclave maintenance; the problems of difficult coverage and heating, large temperature gradient and the like of the electric blanket exist in the maintenance of the hot patching instrument; the finished product oven is not suitable for field maintenance due to the fact that the finished product oven cannot adapt to the complex structure and shape of the piece to be repaired.
The embodiment of the utility model is realized by the following steps:
the medium-temperature curing device for repairing the resin-based composite material comprises a box body, wherein an opening is formed in the box body, the opening is matched with a to-be-repaired area of a to-be-repaired component, a hot air device is arranged on the box body and used for introducing hot air into the box body, and a hot air outlet is formed in the box body.
The device can be used for medium and low temperature curing of various resin-based composite materials, and can carry out heating, heat preservation and cooling according to a specified curing process curve.
The device simple structure, low cost, and can be according to waiting to mend size and the interim preparation of shape of component at the maintenance scene, set up the opening with waiting to mend regional looks adaptation on the box, carry out the thermosetting repair to the component, it is short to have on-the-spot preparation time, adapts to the component of different structural shapes, solidification advantage such as effectual, especially adapted aircraft combined material outfield's maintenance condition.
The resin-based composite material repair medium-temperature curing device provided by the utility model is characterized in that the medium temperature range is 50-85 ℃. A mercury thermometer may be used to monitor the temperature of the hot air in the hot air box.
The area of the opening is larger than that of the to-be-repaired area of the to-be-repaired component, the opening can contain the to-be-repaired area of the to-be-repaired component, and the resin-based composite material repairing medium-temperature curing device can conveniently perform heat curing treatment on the to-be-repaired component.
In one embodiment:
the opening part is provided with a vacuum bag, the vacuum bag is used for covering the area to be repaired, at least one vacuum pump is connected onto the vacuum bag, and the vacuum pump is used for forming negative pressure between the vacuum bag and the area to be repaired.
The negative pressure refers to a pressure slightly less than one atmosphere.
After the surface of the component to be repaired is pretreated, the vacuum bag is laid, and negative pressure is formed between the vacuum bag and the area to be repaired of the component to be repaired by adopting a vacuum pump, so that gaps and bubbles between layers are reduced, and the repairing effect is better.
In one embodiment:
the vacuum bag is rectangular in shape, and a vacuum pump is connected to each of a set of opposite corners of the vacuum bag. By adopting the design, negative pressure is easier to form between the vacuum bag and the area to be repaired.
In one embodiment:
and a thermocouple is arranged in the vacuum bag and is connected with the multi-channel paperless recorder. The thermocouple can transmit signals to the multichannel paperless recorder, the temperature of the component to be repaired in the curing process can be collected and recorded on the multichannel paperless recorder, and a real-time temperature curve can be displayed.
Therefore, the thermocouple and the multi-channel paperless recorder can monitor the temperature of the component to be repaired in the curing process and prevent overtemperature.
In one embodiment:
the opening is arranged on the bottom surface of the box body. The surface of the airplane fuselage is convenient to cure and maintain. In use, the box is fastened to the surface of the fuselage of an aircraft so that the opening contains the region of the fuselage to be repaired.
In one embodiment:
the opening is a wedge-shaped opening, and the wedge-shaped opening is arranged on the side face of the box body. The surface of the airplane wing can be conveniently cured and maintained. When the wing is used, the wing is clamped into the wedge-shaped opening.
In one embodiment:
the hot air device is a hot air blower, a hot air inlet is formed in the box body, and the hot air blower is arranged at the hot air inlet. And heating the air in the box body by using an air heater, monitoring the temperature of hot air in the hot air box by using a mercury thermometer, and further performing thermosetting treatment on the resin-based composite material.
In one embodiment:
the air heater is a stepless-control numerical control air heater. The temperature can be conveniently regulated and controlled, the inlet hot air temperature can be regularly set according to the curing process temperature curve, and the temperature in the box body is increased, kept and reduced.
In one embodiment:
the hot air inlet and the hot air outlet are respectively arranged on two opposite side surfaces of the box body.
In one embodiment:
the hot air inlet is arranged at the geometric center of the side face of the box body, and the hot air outlet is lower than the hot air inlet.
After being sprayed from the hot air inlet, the hot air is filled in the whole box body, part of the hot air reaches the opposite wall surface and then flows to the bottom surface to form backflow, and part of the hot air flows out from the hot air outlet. The air flowing out of the hot air outlet passes over the area to be repaired before flowing out to heat it, while the return air flow heats the area to be repaired again. Therefore, the resin-based composite material repairing medium-temperature curing device provided by the utility model can form a high and stable temperature environment around the to-be-repaired area of the to-be-repaired component, and is beneficial to the heat curing of the to-be-repaired component.
With regard to the determination of the relative position of the hot air inlet and the hot air outlet, the inventor tests the temperature distribution and the thermal stress distribution inside the box body under three relative positions of the hot air inlet being higher than the hot air outlet, the hot air inlet being lower than the hot air outlet, and the hot air inlet being flush with the hot air outlet through a plurality of experiments, and the result shows that when the hot air inlet is higher than the hot air outlet, the corresponding temperature gradient in the component to be repaired is minimum, the temperature field is most uniform, and the uniform curing is facilitated in the temperature rising stage and the heat preservation stage.
In one embodiment:
and the inner wall of the box body is provided with heat insulation cotton. The wall of the carton is guaranteed to have good heat preservation performance, heat dissipated to the external space is reduced, heat waste caused by heat dissipation is avoided, and the repairing component can be better heated.
In one embodiment:
the box body is a refractory material component. The fire-resistant material component can avoid the combustion damage of the box body when hot air is introduced into the box body, and the fire resistance of the fire-resistant material component is higher than 85 ℃.
In one embodiment:
the box body is a corrugated carton. The carton has low cost, is easy to open different openings on the carton body, and is more easily suitable for components with different structural shapes. The carton is small, light in weight, and the transport of being convenient for is removed, can in time carry out the thermosetting to the component and handle, and it is efficient to repair.
In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:
1. the device has the advantages of simple structure, low cost, short on-site manufacturing time, adaptation to components with different structural shapes, good curing effect and the like, and is very suitable for the maintenance conditions of the outfield of composite materials of airplanes.
2. The thermocouple and the multi-channel paperless recorder are arranged, so that the temperature of a component to be repaired in the curing process can be monitored, and overtemperature can be prevented.
3. The design of the hot air inlet and the hot air outlet can form a high and stable temperature environment around the to-be-repaired area of the to-be-repaired component, and is beneficial to the heat curing of the to-be-repaired component.
4. The carton is adopted as the carton body, so that the carton is low in cost, different openings are easy to open on the carton body, and the carton is more easily suitable for components with different structural shapes; the carton is small, light in weight, and the transport of being convenient for is removed, can in time carry out the thermosetting to the component and handle, and it is efficient to repair.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings referred to in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a box body according to embodiment 1 of the present invention.
FIG. 2 is a schematic structural diagram of a medium-temperature curing apparatus for repairing a resin-based composite material according to embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of a box according to embodiment 2 of the present invention.
Icon: 1-a box body; 11-opening; 2-a region to be repaired; 3-vacuum bag; 4-a vacuum pump; 5-a hot air blower; 61-hot air inlet; 62-hot air outlet; 7-wing.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Example 1
Referring to fig. 1-2, the embodiment provides a medium temperature curing device for repairing resin-based composite material, which includes a box body 1, and heat insulation cotton is arranged on an inner wall of the box body 1. In the present embodiment, the box body 1 is a corrugated box.
The box body 1 is provided with an opening 11, the opening 11 is matched with the region 2 to be repaired of the component to be repaired, specifically, the area of the opening 11 is larger than the area of the region 2 to be repaired of the component to be repaired, and the opening 11 can include the region 2 to be repaired of the component to be repaired. In this embodiment, the opening 11 is disposed on the bottom surface of the box 1 and has a rectangular shape.
The box body 1 is provided with a hot air inlet 61 and a hot air outlet 62, and the hot air inlet 61 is provided with a hot air blower 5 for introducing hot air into the box body 1.
The hot air inlet 61 and the hot air outlet 62 are respectively disposed on two opposite side surfaces of the cabinet 1. In the present embodiment, the hot air inlet 61 is provided at the geometric center of the side of the case 1, and the hot air outlet 62 is provided lower than the hot air inlet 61. Experiments prove that in the design mode, after the hot air is sprayed from the hot air inlet 61, the whole box body 1 is filled, a part of the hot air reaches the opposite wall surface and flows to the bottom surface to form backflow, and a part of the hot air flows out from the hot air outlet 62. The air flowing out of the hot air outlet 62 passes through the region 2 to be repaired before flowing out to heat the region 2, and meanwhile, the reflux air flow heats the region 2 to be repaired again, so that a high and stable temperature environment can be formed around the region 2 to be repaired, and the thermal curing of the component to be repaired is facilitated.
The opening 11 is provided with a vacuum bag 3, the vacuum bag 3 is used for covering the to-be-repaired area 2 of the to-be-repaired component, and the vacuum bag 3 is rectangular. A vacuum pump 4 is connected to a group of opposite corners of the vacuum bag 3, and the vacuum pump 4 is used for forming negative pressure between the vacuum bag 3 and the region 2 to be repaired of the component to be repaired; a thermocouple is arranged in the vacuum bag 3 and is connected with a multi-channel paperless recorder.
Example 2
Referring to fig. 3, the present embodiment is different from embodiment 1 in that: the opening 11 is a wedge-shaped opening 11, and the wedge-shaped opening 11 is arranged on the side surface of the box body 1, so that the surface of the airplane wing 7 can be conveniently cured and maintained. When the wing-shaped airplane is used, the wing 7 is clamped into the wedge-shaped opening.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A resin matrix composite repairs medium temperature solidification equipment which characterized in that:
comprises a box body (1), an opening (11) is arranged on the box body (1), the opening (11) is matched with a to-be-repaired area (2) of a to-be-repaired component,
the hot air device is arranged on the box body (1) and used for introducing hot air into the box body (1), and a hot air outlet (62) is formed in the box body (1).
2. The medium-temperature curing device for repairing resin-based composite materials according to claim 1, wherein:
the opening (11) is provided with a vacuum bag (3), the vacuum bag (3) is used for covering the area (2) to be repaired, at least one vacuum pump (4) is connected to the vacuum bag (3), and the vacuum pump (4) is used for forming negative pressure between the vacuum bag (3) and the area (2) to be repaired.
3. The medium-temperature curing device for repairing resin-based composite materials according to claim 2, wherein:
and a thermocouple is arranged in the vacuum bag (3) and is connected with the multi-channel paperless recorder.
4. The medium-temperature curing device for repairing resin-based composite materials according to claim 2, wherein:
the opening (11) is arranged on the bottom surface of the box body (1).
5. The medium-temperature curing device for repairing resin-based composite materials according to claim 2, wherein:
the opening (11) is a wedge-shaped opening (11), and the wedge-shaped opening (11) is arranged on the side face of the box body (1).
6. The medium-temperature curing device for repairing resin-based composite materials according to claim 1, wherein:
the hot air device is an air heater (5), a hot air inlet (61) is formed in the box body (1), and the air heater (5) is arranged at the hot air inlet (61).
7. The medium-temperature curing device for repairing resin-based composite materials according to claim 6, wherein:
the hot air inlet (61) and the hot air outlet (62) are respectively arranged on two opposite side surfaces of the box body (1).
8. The medium-temperature curing device for repairing resin-based composite materials according to claim 7, wherein:
the hot air inlet (61) is arranged at the geometric center of the side surface of the box body (1), and the hot air outlet (62) is lower than the hot air inlet (61).
9. The medium-temperature curing device for repairing resin-based composite materials according to any one of claims 1 to 8, wherein:
the inner wall of the box body (1) is provided with heat insulation cotton.
10. The medium-temperature curing device for repairing resin-based composite materials according to claim 9, wherein:
the box body (1) is a corrugated case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120839390.7U CN215359987U (en) | 2021-04-22 | 2021-04-22 | Medium-temperature curing device for repairing resin-based composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120839390.7U CN215359987U (en) | 2021-04-22 | 2021-04-22 | Medium-temperature curing device for repairing resin-based composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215359987U true CN215359987U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120839390.7U Active CN215359987U (en) | 2021-04-22 | 2021-04-22 | Medium-temperature curing device for repairing resin-based composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215359987U (en) |
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2021
- 2021-04-22 CN CN202120839390.7U patent/CN215359987U/en active Active
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