Invisible coating in-situ radiation heating curing device and method

Abstract

The invention relates to the technical field of aviation engineering, and provides a stealth coating in-situ radiation heating curing device and method.The device comprises a radiation heating module, an acquisition module, a processing module and a control module; the radiation heating module comprises a mounting main body and a plurality of radiation heating pieces arranged on the mounting main body; the processing module is connected to the acquisition module; the control module is connected to the processing module; the structural performance parameters of the stealth coating are obtained through the collection module, the design strategy of the radiation heating module is determined based on the structural performance parameters of the stealth coating, and the design strategy comprises at least one of the arrangement position of the radiation heating pieces on the installation body, the number of the radiation heating pieces and the design parameters of the radiation heating pieces; the radiation heating piece is regulated and controlled based on the design strategy, so that the whole stealth coating is rapidly heated and cured through the regulated and controlled radiation heating module according to the curing requirement of the stealth coating, and the maintenance efficiency of the stealth coating can be improved on the premise that the maintenance quality of the stealth coating is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of aerospace engineering technology, and in particular to an in-situ radiation heating curing device and method for stealth coating. Background Technology

[0002] In the field of aerospace engineering, stealth technology plays a crucial role in enhancing flight survivability and combat effectiveness. Stealth coatings, as an important component of stealth technology, primarily function to reduce the aircraft's radar cross-section (RCS) by absorbing or scattering radar waves, thereby achieving a stealth effect. However, in practical use, it has been found that these stealth coatings exhibit significant vulnerability to complex natural environmental conditions. Specifically, due to long-term exposure to harsh external conditions, such as media contamination, extreme temperature changes, high-speed airflow erosion, mechanical stress, and vibration, stealth coatings are prone to localized degradation of adhesion or loss of supporting properties. This further leads to failure modes such as localized or bulk separation, debonding, and hollow bulging of the coating, with typical manifestations including peeling, cracking, blistering, delamination, and abrasion.

[0003] In existing technologies, the repair and maintenance of stealth coatings mainly rely on traditional curing methods, which are relatively slow and reduce the efficiency of stealth coating maintenance. Summary of the Invention

[0004] This invention provides an in-situ radiation heating curing device and method for stealth coatings, which solves the problem of low maintenance efficiency of stealth coatings in the prior art and can improve the maintenance efficiency of stealth coatings.

[0005] This invention provides an in-situ radiation heating curing device for stealth coatings, comprising: A radiant heating module includes a mounting body and a plurality of radiant heating elements disposed on the mounting body; The acquisition module is used to acquire the structural performance parameters of the stealth coating; A processing module, connected to the acquisition module, is used to determine the design strategy of the radiant heating module based on the structural performance parameters; the design strategy includes at least one of the following: the arrangement position of the radiant heating element on the mounting body, the number of the radiant heating element, and the design parameters of the radiant heating element. A control module, connected to the processing module, is used to regulate the radiant heating element based on the design strategy.

[0006] According to the present invention, an in-situ radiation heating curing device for stealth coating is provided, wherein the mounting body comprises: Mounting plate, with multiple radiant heating elements arranged side by side on the first side of the mounting plate; An outer cover is provided on the first side of the mounting plate, and the outer cover has a light-transmitting surface through which the radiant beam of the radiant heating element passes.

[0007] According to the present invention, an in-situ radiation heating and curing device for stealth coating is provided, wherein the first side of the mounting plate has a mounting groove, the outer cover is disposed on the mounting groove, and the mounting plate is provided with a reflector.

[0008] According to the present invention, an in-situ radiation heating and curing device for stealth coating is provided, wherein the radiation heating module further includes a temperature measuring element disposed on the mounting body, the temperature measuring element being used to collect the current temperature of the stealth coating during the radiation heating process of the stealth coating by the radiation heating element.

[0009] According to the present invention, an in-situ radiation heating and curing device for stealth coating is provided, wherein there are multiple radiation heating modules, and the multiple radiation heating modules are connected by a connecting mechanism.

[0010] According to the in-situ radiation heating and curing device for stealth coating provided by the present invention, the design strategy further includes the arrangement of multiple radiation heating modules, and the control module is also used to regulate the state of the connecting mechanism based on the design strategy.

[0011] According to the present invention, an in-situ radiation heating curing device for stealth coating is provided, wherein the mounting body has a cooling channel, and the cooling channel has a cooling inlet and a cooling outlet.

[0012] According to the present invention, an in-situ radiation heating and curing device for stealth coating is provided, wherein the radiation heating element includes a quartz lamp.

[0013] This invention also provides an in-situ radiation heating curing method for stealth coatings, comprising: Obtain the structural performance parameters of the stealth coating; The design strategy for the radiant heating module is determined based on the structural performance parameters; the radiant heating module includes a mounting body and multiple radiant heating elements disposed on the mounting body; the design strategy includes at least one of the following: the arrangement position of the radiant heating elements on the mounting body, the number of the radiant heating elements, and the design parameters of the radiant heating elements; Based on the design strategy, the radiant heating element is adjusted to obtain the adjusted radiant heating module; The stealth coating is heated and cured using a regulated radiation heating module.

[0014] According to the present invention, an in-situ radiation heating curing method for a stealth coating is provided, wherein determining the design strategy of the radiation heating module based on the structural performance parameters includes: The target power density of the stealth coating is determined based on the aforementioned structural performance parameters; The design strategy for the radiant heating module is determined based on the target power density.

[0015] According to the in-situ radiation heating curing method for stealth coatings provided by the present invention, after determining the design strategy of the radiation heating module based on the target power density, the method further includes: Construct a test specimen model corresponding to the stealth coating; A heating model corresponding to the radiant heating module is constructed based on the design strategy described above. The test specimen model is heated and cured using the heating model to obtain temperature data of the test specimen model; Based on the temperature data, the design strategy is optimized to obtain an optimized design strategy; The process of regulating the radiant heating element based on the design strategy to obtain the regulated radiant heating module includes: Based on the optimized design strategy, the radiant heating element is adjusted to obtain the adjusted radiant heating module.

[0016] The stealth coating in-situ radiation heating and curing device and method provided by the present invention acquires the structural performance parameters of the stealth coating through a data acquisition module, determines the design strategy of the radiation heating module based on the structural performance parameters of the stealth coating, and adjusts the radiation heating element based on the design strategy. Thus, according to the curing requirements of the stealth coating, the entire stealth coating is rapidly heated and cured by the adjusted radiation heating module, thereby improving the maintenance efficiency of the stealth coating. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the principle structure of the in-situ radiation heating and curing device for stealth coating provided by the present invention.

[0019] Figure 2 This is one of the structural schematic diagrams of the radiant heating module provided by the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of the radiant heating element provided by the present invention.

[0021] Figure 4 This is a schematic diagram of the electrical characteristic curve of the quartz lamp provided by the present invention.

[0022] Figure 5This is a schematic diagram of the part to be cured provided by the present invention.

[0023] Figure 6 This is the second structural schematic diagram of the radiant heating module provided by the present invention.

[0024] Figure 7 This is a schematic diagram showing the interaction between the radiation heating module provided by this invention and the stealth coating to be cured.

[0025] Figure 8 This is one of the flowcharts of the in-situ radiation heating curing method for stealth coatings provided by the present invention.

[0026] Figure 9 This is the second schematic diagram of the in-situ radiation heating curing method for stealth coatings provided by the present invention.

[0027] Figure 10 This is the third schematic diagram of the in-situ radiation heating curing method for stealth coatings provided by the present invention.

[0028] Figure 11 This is a schematic diagram showing the combination of the heating model and the test piece model provided by the present invention.

[0029] Figure label: 10. Radiant heating module; 11. Mounting body; 12. Radiant heating element; 13. Temperature measuring element; 14. Cooling inlet; 15. Cooling outlet; 20. Data Acquisition Module; 30. Processing module; 40. Control module; 50. Stealth coating awaiting curing; 60. Test specimen model; 70. Heating model. Detailed Implementation

[0030] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0031] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0033] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] The following is combined with Figures 1-7 The present invention describes an in-situ radiation heating curing apparatus for stealth coating.

[0036] An embodiment of the first aspect of the present invention provides an in-situ radiation heating curing device for stealth coatings, such as... Figure 1 As shown, the radiation heating and curing device includes a radiation heating module 10, a data acquisition module 20, a processing module 30, and a control module 40.

[0037] like Figure 2As shown, the radiant heating module 10 includes a mounting body 11 and multiple radiant heating elements 12 disposed on the mounting body 11; the acquisition module 20 is used to acquire the structural performance parameters of the stealth coating; the processing module 30 is connected to the acquisition module 20, and the processing module 30 is used to determine the design strategy of the radiant heating module 10 based on the structural performance parameters; the design strategy includes at least one of the following: the arrangement position of the radiant heating elements 12 on the mounting body 11, the number of radiant heating elements 12, and the design parameters of the radiant heating elements 12; the control module 40 is connected to the processing module 30, and the control module 40 is used to regulate the radiant heating elements 12 based on the design strategy.

[0038] It is understood that the radiant heating module 10 includes a mounting body 11 and multiple radiant heating elements 12 disposed on the mounting body 11. The radiant heating elements 12 radiate heat the stealth coating to achieve in-situ radiant heating and curing of the stealth coating.

[0039] Furthermore, the structural performance parameters of the stealth coating 50 to be cured are acquired by the acquisition module 20. Based on the structural performance parameters, the design strategy of the radiant heating module 10 is determined, and the radiant heating element 12 is adjusted according to the design strategy to obtain the adjusted radiant heating module 10. The stealth coating is then heated and cured using the adjusted radiant heating module 10, which can improve the maintenance efficiency of the stealth coating while ensuring the maintenance quality of the stealth coating. The design strategy can be any one of the following: the arrangement position of the radiant heating element 12 on the mounting body 11, the number of radiant heating elements 12, and the design parameters of the radiant heating element 12. It can also be a combination of two, or simultaneously include the arrangement position of the radiant heating element 12 on the mounting body 11, the number of radiant heating elements 12, and the design parameters of the radiant heating element 12.

[0040] For example, the arrangement position of the radiant heating element 12 on the mounting body 11 represents the distance between two adjacent radiant heating elements 12. By adjusting the distance between two adjacent radiant heating elements 12, the arrangement position of the radiant heating element 12 on the mounting body 11 can be controlled. The design parameter of the radiant heating element 12 can be its output power.

[0041] The stealth coating in-situ radiation heating and curing device provided in this embodiment of the invention acquires the structural performance parameters of the stealth coating through the acquisition module 20, determines the design strategy of the radiation heating module 10 based on the structural performance parameters of the stealth coating, and adjusts the radiation heating element 12 based on the design strategy. Thus, according to the curing requirements of the stealth coating, the entire stealth coating is rapidly heated and cured by the adjusted radiation heating module 10, thereby improving the maintenance efficiency of the stealth coating.

[0042] It should be noted that traditional curing methods involve curing the coating at room temperature, which typically takes more than three days, resulting in low curing efficiency. To improve curing efficiency, methods such as using hot air guns or small heaters for localized curing can lead to uneven temperature distribution, compromising coating maintenance quality. This invention, based on the curing requirements of stealth coatings, arranges multiple radiant heating elements 12 on the mounting body 11. These elements heat and cure the entire stealth coating, ensuring uniform curing temperature and thus improving maintenance efficiency while maintaining the quality of the stealth coating.

[0043] Furthermore, multiple radiant heating elements 12 are arranged at equal intervals to further improve the uniformity of the curing temperature of the stealth coating.

[0044] In one embodiment of the present invention, such as Figure 2 As shown, the mounting body 11 includes a mounting plate and an outer cover. The outer cover is disposed on the first side of the mounting plate, and a mounting cavity is formed between the mounting plate and the outer cover. Multiple radiant heating elements 12 are arranged side by side on the first side of the mounting plate. The outer cover has a light-transmitting surface through which the radiant beams of the radiant heating elements 12 pass. It should be noted that the first side of the mounting plate is the side closer to the stealth coating when the radiant heating module 10 is located on the upper side of the stealth coating.

[0045] It is understood that the mounting body 11 is located on the upper side of the stealth coating. Multiple radiant heating elements 12 are provided on the side of the mounting body 11 near the stealth coating. The multiple radiant heating elements 12 are arranged side by side. An outer cover is provided on the side of the mounting body 11 near the stealth coating, and a light-transmitting surface is provided on the outer cover. Thus, the radiant beams of the multiple radiant heating elements 12 radiate through the light-transmitting surface of the outer cover to the stealth coating, so as to heat and cure the stealth coating.

[0046] For example, the light-transmitting surface of the outer casing corresponds to the stealth coating, and the light-transmitting surface of the outer casing can be heat-resistant transparent glass. Preferably, the other surfaces of the outer casing can be made of aluminum plates so that the radiant heat of the radiant heating element 12 only enters the stealth coating from the light-transmitting surface, thereby improving the utilization rate of the thermal energy of the radiant heating element 12.

[0047] Optionally, the mounting plate has a mounting groove on its first side, an outer cover is placed in the mounting groove, and multiple radiant heating elements 12 are arranged side by side in the mounting groove. The outer cover is a transparent plate-like structure. The mounting plate can be made of a material that reflects the radiant beams of the radiant heating elements 12.

[0048] Furthermore, the mounting plate is equipped with reflective elements. The reflective elements can be set on the bottom wall of the mounting groove, or on the side wall of the mounting groove, or simultaneously on both the bottom wall and the side wall of the mounting groove. The reflective elements can be reflectors, reflective layers, or other structures with reflective properties.

[0049] Specifically, the mounting plate is made of aluminum, with a mounting groove on the first side and a reflector on the second side. It should be noted that the second side of the mounting plate is the side facing away from the stealth coating when the radiant heating module 10 is located above the stealth coating.

[0050] It should be noted that multiple radiant heating elements 12 are arranged side by side in the mounting groove. Most of the heat energy emitted by the radiant heating elements 12 is directly directed towards the stealth coating, while a small portion is directed towards the space away from the stealth coating. To improve the thermal efficiency of the radiant heating elements 12, reflectors are arranged on the mounting plate. The reflectors reflect some of the heat energy from the radiant heating elements 12 back into the mounting cavity and further radiate it to the stealth coating, thereby improving the utilization rate of the heat energy of the radiant heating elements 12.

[0051] In one embodiment of the present invention, the radiant heating element 12 includes a quartz lamp.

[0052] Understandably, when using a quartz lamp as the radiant heating element, its maximum heat flux density can reach 1500 KW / m². 2 It can meet the energy requirements for heating the stealth coating.

[0053] Optional, such as Figure 3 As shown, a quartz lamp includes a lamp holder, a filament, and a lamp tube. The lamp holder is used to connect to the power supply, the lamp tube is installed in the lamp holder, and the filament is fixed inside the lamp tube. The filament is made of tungsten, with a melting point of approximately 3380℃ and a maximum operating temperature of 3200℃. It exhibits stable thermal performance at high temperatures, a low evaporation rate, and sufficient strength. The lamp tube is made of quartz glass, which has a high operating temperature, with a melting temperature reaching 2100℃; quartz glass also has a low coefficient of thermal expansion, approximately 5.8 × 10⁻⁶. -7 The temperature is / ℃, providing excellent resistance to thermal shock; quartz glass has a strong ability to transmit infrared light, which determines the high heating efficiency of the quartz lamp. The lamp tube is filled with an inertial gas containing halogen elements and under certain pressure to prevent the tungsten filament from evaporating under high temperature.

[0054] Furthermore, the quartz lamp is mounted on the mounting plate, and the surface of the quartz lamp closest to the mounting plate is coated with a reflective coating. The higher the temperature, the better the reflective effect, so that the heat emitted by the filament radiates from the side of the quartz lamp away from the mounting plate to the stealth coating.

[0055] It should be noted that quartz lamps have low thermal inertia, making them easy to control instantly; quartz lamps also have the characteristics of small size and high power, such as... Figure 4 As shown, under the rated operating voltage of 220V, the output power of a single quartz lamp can reach 1 to 4.3KW. If the voltage is doubled, the output power of a single quartz lamp will increase to about three times the original value, demonstrating strong instantaneous overload capacity.

[0056] It should be noted that quartz lamps have high thermal efficiency, with about 85% of their energy emitted as radiation heating under rated voltage; and quartz lamps have a long lifespan, capable of operating continuously for over 1000 hours under good cooling conditions.

[0057] In one embodiment of the present invention, such as Figure 2 As shown, the mounting body 11 has a cooling channel with a cooling inlet 14 and a cooling outlet 15.

[0058] It is understood that the mounting body 11 has a cooling channel inside, which is spiral-shaped to increase the contact area between the cooling medium and the mounting body 11. The cooling inlet 14 is located at one end of the mounting body 11 and is connected to the cooling medium supply system via a pipe. The cooling outlet 15 is located at the other end of the mounting body 11 and is also connected to the cooling medium supply system via a pipe. The cooling medium (such as water, coolant, or cooling gas) flows in from the cooling inlet 14, passes through the cooling channel, and is discharged from the cooling outlet 15. In this process, it absorbs heat from the mounting body 11, achieving efficient heat dissipation. It should be noted that the radiant heating element 12 does not require cooling when operating under lower temperature conditions, i.e., no cooling medium is introduced into the cooling inlet 14.

[0059] In one embodiment of the present invention, the radiant heating module 10 includes a mounting body 11 and a plurality of radiant heating elements 12 disposed on the mounting body 11. The mounting body 11 includes a mounting plate and an outer cover. The mounting plate is made of aluminum to form an aluminum reflector. The cross-section of the mounting plate is quadrilateral. The radiant heating elements 12 are arranged along the length direction of the reflector, and the plurality of radiant heating elements 12 are arranged at equal intervals along the width direction of the mounting body 11. The outer cover is disposed on the mounting plate and has a light-transmitting plate opposite to the mounting plate and a side plate connected to the outside of the light-transmitting plate. The light-transmitting plate is made of heat-resistant transparent glass, and the side plate is made of aluminum plate. The aluminum plate has a cooling inlet 14 and a cooling outlet 15. The mounting plate has a cooling channel communicating with the cooling inlet 14 and the cooling outlet 15. It should be noted that the light-transmitting plate must ensure light transmission while protecting the radiant heating elements 12.

[0060] For example, the dimensions of the mounting body 11 correspond to the dimensions of the stealth coating 50 to be cured. For instance, if the stealth coating 50 to be cured is 1m×1m, then the mounting plate is designed as a 1m×1m plate structure, and 30 radiant heating elements 12 are arranged on the mounting plate.

[0061] In one embodiment of the present invention, such as Figure 2 As shown, the radiant heating module 10 also includes a temperature measuring element 13 disposed on the mounting body 11. The temperature measuring element 13 is used to collect the current temperature of the stealth coating during the radiant heating process of the radiant heating element 12 radiating the stealth coating.

[0062] It is understandable that during the process of radiant heating and curing of the stealth coating, the radiant heating element 12 monitors the current temperature of the stealth coating in real time through the temperature measuring element 13, and can adjust the output power of the radiant heating element 12 based on the current temperature, so as to improve the maintenance efficiency of the stealth coating while ensuring the maintenance quality of the stealth coating.

[0063] For example, multiple temperature measuring elements 13 are arranged on the mounting body 11. The temperature measuring elements 13 are infrared temperature sensors. The number of temperature measuring elements 13 can be reasonably designed according to the temperature control area and temperature uniformity.

[0064] In one embodiment of the present invention, such as Figures 5 to 7 As shown, there are multiple radiant heating modules 10, which are connected by a connecting mechanism.

[0065] It should be noted that when the stealth coating is sprayed onto the fuselage surface, and the fuselage surface is flat, the mounting body 11 can be designed as a flat plate, and the distance between the radiant heating module 10 and the stealth coating is constant, resulting in good temperature uniformity of the stealth coating by the radiant heating module 10. However, when the stealth coating 50 to be cured is a coating with a curved shape (such as an air intake, the upper surface of the nozzle, and the tail fin), the use of a flat radiant heating module 10 cannot guarantee temperature uniformity. Based on this, this embodiment designs the radiant heating curing device as multiple radiant heating modules 10 with smaller widths, and the multiple radiant heating modules 10 are connected by a connecting mechanism. It should be noted here that the smaller width of the radiant heating module 10 refers to the smaller width of the mounting body and the smaller number of radiant heating elements arranged on the mounting body.

[0066] It is understood that adjacent radiant heating modules 10 are connected by a connecting mechanism (not shown in the figure), and the relative position between the two radiant heating modules 10 is adjusted by the connecting mechanism. For example, the connecting mechanism can be a linkage structure, hinged to the radiant heating module 10, and also has a locking structure between the linkage structure and the radiant heating module 10 to lock the position of the two radiant heating modules 10. It should be noted that the relative position can be the distance between the two radiant heating modules 10 or the included angle between the two radiant heating modules 10. For example, the two radiant heating modules 10 may be coplanar or connected at an included angle; thus, by adjusting the connecting mechanism between multiple radiant heating modules 10 according to the surface shape of the stealth coating 50 to be cured, the overall structural shape of the connected multiple radiant heating modules 10 is adapted to the surface shape of the stealth coating, keeping the distance between the radiant heating modules 10 and the stealth coating constant.

[0067] It should be noted that, from a design layout perspective, the radiant heating module 10 is designed as a modular structure with a relatively small width. Based on the actual position of the curvature of the stealth coating, the modular radiant heating module 10 is arranged and fixed according to the shape through a linkage mechanism, so as to keep the distance between the multiple radiant heating modules 10 and the surface of the stealth coating as constant as possible, so as to make the curing temperature uniform. Thus, the surface temperature of the stealth coating is controlled by multiple radiant heating modules 10 in separate zones, thereby achieving uniform surface temperature of the stealth coating and ensuring that the stealth coating maintains a constant temperature for a long time during the curing process.

[0068] Furthermore, the acquisition module 20 includes an image acquisition module, which can acquire image information of the stealth coating 50 to be cured. The processing module 30 acquires the image information, determines the surface shape of the stealth coating 50 to be cured based on the image information, and determines the arrangement of multiple radiant heating modules 10 based on the surface shape of the stealth coating. The control module 40 adjusts the state of the connection mechanism based on the arrangement of the multiple radiant heating modules 10 so that the distance between the multiple radiant heating modules 10 and the stealth coating remains constant.

[0069] It should be noted that the processing module 30 first determines the number of radiant heating modules 10 based on the surface shape of the stealth coating, and then determines the arrangement of the multiple radiant heating modules 10.

[0070] It should be noted that the processing module 30 also determines the thickness and material of the stealth coating based on the image information, and determines the required power density of the stealth coating based on the thickness and material. The required power density of the stealth coating can determine the number, arrangement and design parameters of the radiant heating elements 12. The design parameters of the radiant heating elements 12 can be the size of the quartz lamp or the working parameters of the quartz lamp, such as the working voltage.

[0071] Based on the stealth coating in-situ radiation heating and curing apparatus provided in any of the above embodiments, the second aspect of the present invention proposes an in-situ radiation heating and curing method for a stealth coating, such as... Figure 8 As shown, the radiation-heated curing method includes the following steps: Step 100: Obtain the structural performance parameters of the stealth coating.

[0072] Step 200: Determine the design strategy of the radiant heating module based on structural performance parameters; the radiant heating module includes an installation body and multiple radiant heating elements disposed on the installation body; the design strategy includes at least one of the following: the arrangement position of the radiant heating elements on the installation body, the number of radiant heating elements, and the design parameters of the radiant heating elements.

[0073] Step 300: Adjust the radiant heating element based on the design strategy to obtain the adjusted radiant heating module.

[0074] Step 400: The stealth coating is heated and cured based on the regulated radiation heating module.

[0075] It is understandable that the radiant heating module includes an installation body and multiple radiant heating elements set on the installation body. By obtaining the structural performance parameters of the stealth coating to be cured, the design strategy of the radiant heating module is determined based on the structural performance parameters, and the control of the radiant heating elements is determined based on the design strategy to obtain the controlled radiant heating module. The stealth coating is then heated and cured based on the controlled radiant heating module, which can improve the maintenance efficiency of the stealth coating while ensuring the maintenance quality of the stealth coating.

[0076] Optional, such as Figure 9 As shown, step 200 includes the following steps: Step 210: Determine the target power density of the stealth coating based on structural performance parameters.

[0077] Step 220: Determine the design strategy for the radiant heating module based on the target power density.

[0078] Understandably, the acquisition module obtains image information of the stealth coating to be cured, and the processing module determines the thickness and material of the stealth coating based on the image information. It then determines the required power density (i.e., target power density) for the stealth coating based on these parameters. The required power density allows for the determination of the number, arrangement, and design parameters of the radiant heating elements. Based on these determined parameters, a radiant heating module is constructed to rapidly heat and cure the entire stealth coating. The design parameters of the radiant heating elements can be the size and specifications of the quartz lamp, or its operating parameters, such as the operating voltage.

[0079] For example, step 200 includes the following: The target power density absorbed by the stealth coating is determined based on formula (1).

[0080] (1) in, This represents the target power density, expressed in W / m³. 2 (watts per square meter); This indicates the specific heat capacity of the material used in stealth coatings, measured in units of... (Joules per kilogram per degree Celsius); The density of the material used in the stealth coating is expressed in units of... (kg per cubic meter); Indicates the thickness of the stealth coating, in units of (rice); This indicates the maximum temperature rise rate of the heating program, in units of... (Celsius per second).

[0081] The output power of the radiant heating module is determined based on formula (2).

[0082] (2) in, This indicates the output power of the radiant heating module. (watts per square meter); Indicates heating efficiency. It should be noted that heating efficiency refers to the ratio of the energy emitted per unit area of ​​the radiant heating element to the energy received by the stealth coating, to the energy emitted per unit area of ​​the radiant heating element. Heating efficiency is affected by various factors, such as the thermal efficiency of the quartz lamp itself, the reflectivity of the reflector, the distance between the quartz lamp and the stealth coating surface, and the form and position parameters. When the stealth coating surface emissivity is ≥0.8, multiple radiant heating modules arranged in a plate shape... The value ranges from 0.4 to 0.5; when multiple radiant heating modules are arranged in an arc shape, The value is 0.5~0.6. It should be noted that when the part to be cured is at a high temperature, the output power density of the radiant heating element should be increased by the part lost due to radiation from the part to be cured; when the part to be cured is at a low temperature, the part lost due to natural convection should be increased.

[0083] Based on the output power of the radiant heating module, the design strategy of the radiant heating module is determined. The design strategy includes the number of radiant heating modules, as well as the number and arrangement of radiant heating elements in a single radiant heating module and the design parameters of the radiant heating elements.

[0084] Furthermore, such as Figure 10 As shown, after step 220, step 200 further includes the following steps: Step 230: Construct the test specimen model corresponding to the stealth coating.

[0085] Step 240: Construct the heating model corresponding to the radiant heating module based on the design strategy.

[0086] Step 250: Heat and cure the test specimen model using a heating model to obtain the temperature data of the test specimen model.

[0087] Step 260: Optimize the design strategy based on temperature data to obtain the optimized design strategy.

[0088] Understandably, a test specimen model is constructed based on the stealth coating to be cured, and a heating model corresponding to the radiant heating module is constructed based on the design strategy. Within the heating model, temperature zones are set according to the usage of the radiant heating element, high-temperature radiant boundary conditions are set for the radiant area, surface emissivity is adjusted according to the reflector, and spatial radiant boundaries and air convection boundaries are set according to the actual in-situ environment of the external field. Figure 11 As shown, the simulated heating model 70 heats and cures the test piece model 60, and obtains the temperature data of the test piece model, that is, obtains the temperature field of the test piece model. Based on the temperature field, the design strategy is optimized to obtain the optimized design strategy. Based on the design strategy, the design and layout of the actual radiant heating element are adjusted to obtain the adjusted radiant heating module. Based on the adjusted radiant heating module, the stealth coating is heated and cured.

[0089] Furthermore, during the curing process of the test specimen model, temperature data is acquired and compared with a preset temperature value. Based on the comparison result, the output power of the radiant heating element is adjusted by controlling the output voltage / power of the DC power supply, thereby controlling the curing temperature of the test specimen model surface. It should be noted that during the curing process, due to the large thermal inertia and long response time, open-loop feedforward control is required to pre-input command values ​​to the actuator, i.e., using a composite control method to shorten the response time. Since the radiant heating element is a power output component, prolonged operation at voltages higher than its rated voltage will cause malfunctions; therefore, the DC power supply has a maximum safe output voltage.

[0090] It should be noted that during the actual curing process of the stealth coating by the radiant heating module, the current temperature of the stealth coating can also be monitored in real time by the temperature measuring element on the main body. Based on the comparison between the current temperature and the set temperature of the stealth coating, the radiant power of the radiant heating element can be adjusted by the output voltage / power of the DC power supply.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stealth coating in-situ radiation heating curing device, characterized in that, include: A radiant heating module includes a mounting body and a plurality of radiant heating elements disposed on the mounting body; The acquisition module is used to acquire the structural performance parameters of the stealth coating; A processing module, connected to the acquisition module, is used to determine the design strategy of the radiant heating module based on the structural performance parameters; the design strategy includes at least one of the following: the arrangement position of the radiant heating element on the mounting body, the number of the radiant heating element, and the design parameters of the radiant heating element. A control module, connected to the processing module, is used to regulate the radiant heating element based on the design strategy.

2. The in-situ radiation heating and curing device for stealth coating according to claim 1, characterized in that, The installation body includes: Mounting plate, with multiple radiant heating elements arranged side by side on the first side of the mounting plate; An outer cover is provided on the first side of the mounting plate, and the outer cover has a light-transmitting surface through which the radiant beam of the radiant heating element passes.

3. The in-situ radiation heating and curing device for stealth coating according to claim 2, characterized in that, The mounting plate has a mounting groove on its first side, the outer cover is disposed on the mounting groove, and the mounting plate is provided with a reflector.

4. The in-situ radiation heating and curing device for stealth coating according to claim 1, characterized in that, The radiant heating module also includes a temperature measuring element disposed on the mounting body, the temperature measuring element being used to collect the current temperature of the stealth coating.

5. The in-situ radiation heating curing device for stealth coating according to any one of claims 1 to 4, characterized in that, The radiant heating module is multiple, and the multiple radiant heating modules are connected by a connecting mechanism.

6. The in-situ radiation heating and curing device for stealth coating according to claim 5, characterized in that, The design strategy also includes the arrangement of multiple radiant heating modules, and the control module is also used to regulate the state of the connection mechanism based on the design strategy.

7. The in-situ radiation heating curing device for stealth coating according to any one of claims 1 to 4, characterized in that, The mounting body has a cooling channel, which has a cooling inlet and a cooling outlet, and / or, The radiant heating element includes a quartz lamp.

8. A method for in-situ radiation heating curing of a stealth coating, characterized in that, include: Obtain the structural performance parameters of the stealth coating; The design strategy for the radiant heating module is determined based on the aforementioned structural performance parameters. The radiant heating module includes a mounting body and a plurality of radiant heating elements disposed on the mounting body; the design strategy includes at least one of the following: the arrangement position of the radiant heating elements on the mounting body, the number of the radiant heating elements, and the design parameters of the radiant heating elements; Based on the design strategy, the radiant heating element is adjusted to obtain the adjusted radiant heating module; The stealth coating is heated and cured using a regulated radiation heating module.

9. The in-situ radiation heating curing method for stealth coating according to claim 8, characterized in that, The design strategy for determining the radiant heating module based on the structural performance parameters includes: The target power density of the stealth coating is determined based on the aforementioned structural performance parameters; The design strategy for the radiant heating module is determined based on the target power density.

10. The in-situ radiation heating curing method for stealth coating according to claim 8, characterized in that, After determining the design strategy for the radiant heating module based on the target power density, the method further includes: Construct a test specimen model corresponding to the stealth coating; A heating model corresponding to the radiant heating module is constructed based on the design strategy described above. The test specimen model is heated and cured using the heating model to obtain temperature data of the test specimen model; Based on the temperature data, the design strategy is optimized to obtain an optimized design strategy; The process of regulating the radiant heating element based on the design strategy to obtain the regulated radiant heating module includes: Based on the optimized design strategy, the radiant heating element is adjusted to obtain the adjusted radiant heating module.

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