CN112873899A - Manufacturing method of broadband high-power-resistant housing - Google Patents
Manufacturing method of broadband high-power-resistant housing Download PDFInfo
- Publication number
- CN112873899A CN112873899A CN202011561800.2A CN202011561800A CN112873899A CN 112873899 A CN112873899 A CN 112873899A CN 202011561800 A CN202011561800 A CN 202011561800A CN 112873899 A CN112873899 A CN 112873899A
- Authority
- CN
- China
- Prior art keywords
- skin
- core material
- low
- film
- uniformly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a manufacturing method of a broadband high-power resistant housing, wherein the broadband high-power resistant housing comprises a plurality of groups of layer structures, wherein the internal layer structure comprises a plurality of layers; the manufacturing method comprises a wet forming process and a dry forming process, wherein each process adopts a whole-cover integrated forming technology, and skin and core materials of an electric working area adopt a uniform layering structure which is consistent with the shape of a product and has no abutted seam. The broadband high-power-resistant housing sequentially comprises an exterior coating, an outer skin, an inner layer and an inner surface coating from outside to inside, wherein the inner layer is provided with a core material and a composite material skin; the core material and the composite material skin comprise a plurality of groups. The invention is manufactured by optimizing raw materials for manufacturing the housing, matching the thicknesses of all layers of the composite material sandwich structure of the housing and integrally forming the housing, thereby easily providing a protective housing for electronic countermeasure instruments, meeting the requirements of wide frequency band, continuous wave, high power resistance, all-weather normal and effective work, and meeting the requirements of high cost performance and long service life.
Description
Technical Field
The invention relates to a manufacturing method of a housing, in particular to a manufacturing method of a broadband high-power resistant housing which is simple to manufacture and meets the requirements of broadband and high-power resistant electronic countermeasure instruments.
Background
The wide-band and high-power resistant cover case is used for protecting electronic countermeasure equipment in the cover case, so that the characteristics of structure, temperature, aerodynamic force and the like are maintained, and simultaneously, the wide-band, continuous-wave and high-power emission characteristics required by the electronic countermeasure equipment can be obtained.
In the past, various housings are difficult to meet the working requirements of broadband and high-power electronic countermeasure resistance. Firstly, the antenna housing similar to the housing of the electronic countermeasure instrument generally mainly adopts a narrow frequency band, and the requirements of some broadband antenna housings on insertion loss are not very high, so that the working requirements of broadband and high-power resistant housings on high power resistance under the condition of continuous waves are difficult to meet; secondly, the common high-power resistant facility usually meets the power resistant requirement by improving the high-temperature resistance of the material, the housing absorbs certain power, the temperature is improved, the heat exchange is carried out with the surrounding, the heat balance is achieved, and the high-power resistant use requirement is met, but the cover body can absorb more energy emitted by a high-power electronic countermeasure instrument, the work power of electronic countermeasure is weakened, and the electronic countermeasure work requirement is difficult to meet; thirdly, some high-power-resistant facilities can also reduce the insertion loss of the facilities by adopting low-loss thin-wall materials such as polypropylene, polytetrafluoroethylene and the like so as to meet the power-resistant requirement of the facilities, but the thin-wall structure can be generally indoors and is difficult to meet the requirement that the housing normally works under various outdoor severe working conditions (such as rain, snow, hail, strong wind, sand storm, insects, large temperature difference, salt fog, ultraviolet rays and the like) for a long time. Therefore, the invention well meets the requirements of broadband and high-power-resistant electronic countermeasure instruments.
Disclosure of Invention
In view of the above problems, the present invention provides a method for manufacturing a broadband high-power-tolerant housing, which is simple to manufacture and solves the requirements of broadband and high-power-tolerant electronic countermeasure instruments.
The invention solves the technical problems through the following technical scheme: a manufacturing method of a broadband high-power resistant housing comprises a plurality of groups of layer structures, wherein the inner layer comprises a plurality of layers; the manufacturing method of the broadband and high-power resistant housing comprises a wet forming process and a dry forming process.
In a specific implementation example of the invention, the broadband high-power resistant housing sequentially comprises an exterior coating, an outer skin, an inner layer and an inner coating from outside to inside, wherein the inner layer is provided with a core material and a composite material skin; the core material and the composite material skin comprise a plurality of groups.
In a specific embodiment of the invention, in the wet forming process, resin glue solution is used between the skin and the core material when the skin is formed;
or in the dry forming process, the skin and the core material are bonded through the skin and a glue film of the resin matrix, and the thickness of an interlayer glue film is uniform, compact, free of impurities and layering, so that the skin and the core material are bonded firmly;
the wet forming process and the dry forming process both adopt a whole-cover integrated forming technology, and skin and core materials of an electric working area both adopt a uniform layer structure without a seam, which is consistent with the shape of a product.
In a specific embodiment of the present invention, the exterior coating is a weatherable, wave-transparent exterior coating; the inner surface coating is a wave-transparent inner surface coating.
In a specific embodiment of the invention, the outer skin is a low-dielectric low-loss high-strength weather-resistant composite outer skin; the composite material skin is a low-dielectric low-loss high-strength weather-resistant composite material skin, the thickness tf of the composite material skin is less than or equal to 0.8mm, the dielectric constant epsilon is less than or equal to 4.2, and the dielectric loss tg delta is less than or equal to 0.015.
In an embodiment of the present invention, the core material is a low dielectric low loss closed cell foam or a honeycomb.
In the specific embodiment of the invention, the spraying thickness of the exterior coating and the interior coating is less than or equal to 0.05 mm.
In the embodiment of the invention, the thickness tc of the core material such as foam or honeycomb is less than or equal to 30mm, the dielectric constant epsilon is less than or equal to 1.09, and the dielectric loss tg delta is less than or equal to 0.005.
In an embodiment of the present invention, the wet forming process includes the following steps:
step (1): spreading a reinforcing fabric prepared in advance for forming the low-dielectric low-loss high-strength weather-resistant composite material outer skin on the surface of a clean mould coated with a coating agent or a spread demoulding film, preparing a mixture glue solution of resin, a curing agent and other auxiliaries for forming the outer skin at the same time, stirring and mixing the mixture glue solution uniformly, then uniformly impregnating and soaking the resin mixture glue solution into the reinforcing fabric, removing bubbles and redundant glue solution in the reinforcing fabric, strictly preventing impurities from being mixed, and ensuring that the outer skin is uniformly and fittingly adhered to the surface of the mould;
step (2): laying prefabricated low-dielectric low-loss closed-cell foam or honeycomb on the upper surface of the molded outer skin, removing air bubbles between the outer skin and the core material, strictly preventing impurities from being mixed in, and ensuring that the whole contact surface of the core material is uniformly and snugly adhered to the surface of the outer skin through resin glue liquid in the skin;
and (3): when the composite material skin is manufactured in the steps (1) and (2), paving a reinforced fabric prepared in advance for forming the low-dielectric low-loss high-strength weather-resistant composite material skin on a clean platform die for forming the skin, preparing a mixture glue solution of resin, a curing agent and other auxiliaries for forming the skin, stirring and mixing the mixture glue solution uniformly, then uniformly impregnating the resin mixture glue solution into the reinforced fabric, removing bubbles and redundant resin glue solution in the reinforced fabric, strictly preventing impurities from being mixed, paving the impregnated reinforced fabric on the surface of the core material, removing bubbles between the reinforced fabric and the core material layer, strictly preventing impurities from being mixed, and ensuring that the skin is adhered to the surface of the core material uniformly through the resin glue solution in the skin;
and (4): forming the core material layer or the skin layer corresponding to each layer by analogy until the requirement of the sandwich structure of the product is met;
and (5): the sandwich structure product is cured according to a wet process system, and then surface polishing processing is carried out, so as to remove the release agent on the inner surface and the outer surface or the paved release film and other process auxiliary materials for forming the product, ensure that the surface of the product is clean and smooth, and spray the prepared weather-resistant wave-transmitting surface coating and wave-transmitting inner surface coating, ensure that the surface is uniformly and completely coated, have no spraying leakage and sagging phenomena, and strictly prevent the surface from being adhered with impurities.
In a specific embodiment of the present invention, the dry forming process includes the following steps:
step (1): spreading a prepreg prepared in advance for forming the low-dielectric low-loss high-strength weather-resistant composite outer skin on the surface of a clean mould coated with a coating agent or a spread demoulding film, removing air bubbles between the prepreg and the mould surface and between prepreg layers, strictly preventing impurities from being mixed, and ensuring that the prepreg is uniformly and comfortably adhered to the surface of the mould;
step (2): paving a prefabricated resin film which is the same as the skin and a resin matrix on the upper surface of the molded outer skin, wherein the resin film is required to be paved uniformly and fittingly, removing bubbles between the film and a prepreg layer, strictly preventing impurities from being mixed, then paving a low-dielectric low-loss closed-cell foam or honeycomb core material on the surface of the film, removing bubbles between the film and the core material, strictly preventing impurities from being mixed, and ensuring that the whole contact surface of the core material is uniformly and fittingly adhered to the surface of the film;
and (3): spreading a prefabricated resin film which is the same as the skin and a resin matrix on the upper surface of the formed core material, wherein the resin film is required to be spread uniformly and closely, removing bubbles between the film and the core material layer, strictly preventing impurities from being mixed, then spreading a low-dielectric low-loss high-strength weather-resistant composite material skin prepreg on the surface of the film, removing bubbles between the prepreg and the film and between the prepreg layers, strictly preventing impurities from being mixed, and ensuring that the skin prepreg is uniformly and closely adhered to the surface of the core material;
and (4): forming the core material layer or the skin layer corresponding to each layer by analogy until the requirement of the sandwich structure of the product is met;
and (5): the sandwich structure product is cured according to a dry process system and then subjected to surface polishing processing, the release agent on the inner surface and the outer surface or a paved release film and other process auxiliary materials for forming the product are removed, the surface of the product is ensured to be clean and smooth, the prepared weather-resistant wave-transmitting surface coating and wave-transmitting inner surface coating are sprayed, the surface is ensured to be uniformly and completely coated, the spraying and sagging phenomena are avoided, and the surface is strictly prevented from being adhered with impurities.
The positive progress effects of the invention are as follows: the manufacturing method of the broadband high-power-resistant housing provided by the invention has the following advantages: the invention is manufactured by optimizing raw materials for manufacturing the housing, matching the thicknesses of all layers of the composite material sandwich structure of the housing and integrally forming the housing, thereby easily providing a protective housing for electronic countermeasure instruments, meeting the requirements of wide frequency band, continuous wave, high power resistance, all-weather normal and effective work, and meeting the requirements of high cost performance and long service life.
Drawings
Fig. 1 is a schematic structural diagram of a use state of the present invention.
Fig. 2 is one of the overall structural diagrams (a set of layer structures) of the present invention.
FIG. 3 is a second schematic diagram (multi-layer structure) of the overall structure of the present invention.
Detailed Description
The following provides a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a use state of the present invention. As shown in the above figures: the frequency band high-power resistant antenna cover 100 provided by the invention is used for covering electronic countermeasure facilities 200 such as an antenna.
Fig. 2 is a schematic diagram of the overall structure of the present invention (a set of layer structures), fig. 3 is a schematic diagram of the overall structure of the present invention (a multi-set layer structure), as shown in fig. 2 and fig. 3: the broadband high-power resistant housing in the manufacturing method of the broadband high-power resistant housing provided by the invention comprises a plurality of groups of layer structures, wherein the inner layer comprises a plurality of layers; FIG. 2 is a group, FIG. 3 is a plurality of groups, and the number of specific layer structures is determined by product performance requirements and design.
The manufacturing method of the wide-band and high-power-resistant housing comprises a wet forming process and a dry forming process, wherein each process adopts a whole-housing integrated forming technology, and skin and core materials of an electric working area adopt a uniform layer structure which is consistent with the shape of a product and has no abutted seam.
The broadband high-power-resistant housing sequentially comprises an exterior coating, an outer skin, an inner layer and an inner surface coating from outside to inside, wherein the inner layer is provided with a core material and a composite material skin; the core material and the composite material skin comprise a plurality of groups.
The exterior coating of the invention is a weather-resistant wave-transparent exterior coating; the outer skin is a low-dielectric low-loss high-strength weather-resistant composite material outer skin; the core material is low-dielectric low-loss closed-cell foam or honeycomb and other core materials; the composite material skin is a low-dielectric low-loss high-strength weather-resistant composite material skin; the inner surface coating is a wave-transparent inner surface coating.
The following is a specific example of implementation:
the broadband high-power-resistant housing comprises a sandwich structure, wherein the sandwich structure is composed of weather-resistant wave-transparent appearance coating 1, a low-dielectric low-loss high-strength weather-resistant composite outer skin 2, a plurality of layers of core materials 3 such as low-dielectric low-loss closed-cell foam or honeycomb and the like which are mutually crossed and overlapped, and a low-dielectric low-loss high-strength weather-resistant composite skin 4, namely: the composite material comprises a 1 st layer of core materials 3 such as low-dielectric low-loss closed-cell foam or honeycomb, a 1 st layer of low-dielectric low-loss high-strength weather-resistant composite material skin 4, a 2 nd layer of core materials 5 such as low-dielectric low-loss closed-cell foam or honeycomb, 2 nd layers of low-dielectric low-loss high-strength weather-resistant composite material skins 6 and … …, an Mth integral layer (M is more than or equal to 1) of core materials 7 such as low-dielectric low-loss closed-cell foam or honeycomb, an Nth integral layer (N is more than or equal to 0) of low-dielectric low-loss high-strength weather-resistant composite material skin 8 and wave-transparent inner surface.
The broadband and high-power resistant housing adopts a composite material sandwich structure, and the details are shown in figure 2, a schematic diagram of a three-sandwich structure of the broadband and high-power resistant housing. The sandwich structure comprises weather-resistant wave-transmitting appearance coating 1, low-dielectric low-loss high-strength weather-resistant composite material outer skin 2, low-dielectric low-loss honeycomb core material 3, low-dielectric low-loss high-strength weather-resistant composite material skin 4, wave-transmitting inner surface coating and the like, and the insertion loss of the housing coating is further reduced on the premise of not influencing the weather resistance and the disguise property of the broadband and power-resistant housing by spraying the weather-resistant wave-transmitting appearance coating with the thickness tp (tp is less than or equal to 0.05mm) on the outer surface; by adopting the low-dielectric low-loss (dielectric constant epsilon is less than or equal to 4.2 and dielectric loss tg delta is less than or equal to 0.015) high-strength weather-resistant composite skin with the thickness tf (tf is the thickness of each layer of skin; tf is less than or equal to 0.8mm), the mechanical properties of the product, such as weather resistance, strength and the like, are effectively improved, and the insertion loss of the cover shell is particularly further reduced; by adopting the honeycomb core material with low dielectric and low loss (the dielectric constant epsilon is less than or equal to 1.09 and the dielectric loss tg delta is less than or equal to 0.005) and the thickness tc (tc is less than or equal to 30mm), the insertion loss of the shell core material is further reduced, when the electronic countermeasure instrument transmits high-power electromagnetic waves through the sandwich structure, the reflection and the like of the electromagnetic waves on all layers except the honeycomb core layer are mutually counteracted through the thickness matching of all layers, the power transmission loss of the electromagnetic waves when the electromagnetic waves penetrate the sandwich structure is reduced, and the wave-transmitting transmission performance of the product is effectively improved; the skin and the core material of the electric working area are of a uniform laying layer structure without seams and consistent with the shape of a product, so that all parts of the electric working area can meet the optimal electric wave-transmitting laying layer, and the phenomenon of local unevenness is avoided, and the defects of burning, scorching and the like of the electric working area under the condition of high-power emission caused by large insertion loss locally are overcome. By adopting the composite material interlayer structure, the insertion loss of each part is reduced, the wave-transmitting performance and uniformity of the product are improved, and the normal work of the product under the conditions of wide frequency band, continuous wave and high power is ensured; the weather resistance, rigidity, impact, vibration and other mechanical properties of the composite material are effectively improved, the electronic countermeasure instrument protected by the composite material is ensured to be disguised and highly concealed, and the composite material can continuously and normally work under various severe working conditions (rain, snow, hail, strong wind, sand storm, insects, large temperature difference, salt fog, ultraviolet rays and the like).
The wet forming process comprises the following steps:
step (1): spreading a reinforcing fabric prepared in advance for forming the outer skin of the low-dielectric low-loss high-strength weather-resistant composite material on the surface of a clean mould coated with demolding media such as film coating agents (or paved demolding materials such as demolding films) prepared in advance, preparing a mixture glue solution of resin, curing agent and other auxiliaries for forming the outer skin at the same time, stirring and mixing the mixture glue solution uniformly, then uniformly soaking and soaking the resin mixture glue solution into the reinforcing fabric, removing bubbles and redundant glue solution in the reinforcing fabric, and strictly preventing impurities from being mixed into the resin mixture glue solution to ensure that the outer skin is uniformly and closely adhered to the surface of the mould;
step (2): laying prefabricated low-dielectric low-loss closed-cell foam or honeycomb and other core materials on the upper surface of the molded outer skin, removing air bubbles between the outer skin and the core materials, strictly preventing impurities from being mixed in, and ensuring that the whole contact surface of the core materials is uniformly and snugly adhered to the surface of the outer skin through resin glue liquid in the skin;
and (3): when the composite material skin is manufactured in the steps (1) and (2), paving a reinforced fabric prepared in advance for forming the low-dielectric low-loss high-strength weather-resistant composite material skin on a clean platform die for forming the skin, preparing a mixture glue solution of resin, a curing agent and other auxiliaries for forming the skin, stirring and mixing the mixture glue solution uniformly, then uniformly impregnating the resin mixture glue solution into the reinforced fabric, removing bubbles and redundant resin glue solution in the reinforced fabric, strictly preventing impurities from being mixed, paving the impregnated reinforced fabric on the surface of the core material, removing bubbles between the reinforced fabric and the core material layer, strictly preventing impurities from being mixed, and ensuring that the skin is adhered to the surface of the core material uniformly through the resin glue solution in the skin;
and (4): forming the core material layer or the skin layer corresponding to each layer by analogy until the requirement of the sandwich structure of the product is met;
and (5): the sandwich structure product is cured according to a wet process system, and then is subjected to surface polishing processing, demolding media such as demolding agents on the inner surface and the outer surface (or demolding materials such as paved demolding films) and other process auxiliary materials for forming the product are removed, the surface of the product is ensured to be clean and smooth, a prepared weather-resistant wave-transmitting surface coating and a prepared wave-transmitting inner surface coating are sprayed, the surface is ensured to be uniformly and completely coated, the spraying and sagging phenomena are avoided, and impurities are strictly prevented from being adhered to the surface.
The dry forming process comprises the following steps:
step (1): the method comprises the following steps of paving a prepreg prepared in advance for forming the low-dielectric low-loss high-strength weather-resistant composite outer skin on a clean mould surface coated with demolding media such as coating agents (or paved demolding materials such as demolding films) prepared in advance, removing air bubbles between the prepreg and the mould surface and among prepreg layers, strictly preventing impurities from being mixed in, and ensuring that the prepreg is uniformly and snugly adhered to the mould surface;
step (2): paving a prefabricated resin film which is the same as the skin and a resin matrix on the upper surface of the molded outer skin, wherein the resin film is required to be paved uniformly and fittingly, removing bubbles between the film and a prepreg layer, strictly preventing impurities from being mixed, then paving core materials such as low-dielectric low-loss closed-cell foam or honeycomb and the like on the surface of the film, removing the bubbles between the film and the core materials, strictly preventing the impurities from being mixed, and ensuring that the whole contact surface of the core materials is uniformly and fittingly adhered to the surface of the film;
and (3): spreading a prefabricated resin film which is the same as the skin and a resin matrix on the upper surface of the formed core material, wherein the resin film is required to be spread uniformly and closely, removing bubbles between the film and the core material layer, strictly preventing impurities from being mixed, then spreading a low-dielectric low-loss high-strength weather-resistant composite material skin prepreg on the surface of the film, removing bubbles between the prepreg and the film and between the prepreg layers, strictly preventing impurities from being mixed, and ensuring that the skin prepreg is uniformly and closely adhered to the surface of the core material;
and (4): forming the core material layer or the skin layer corresponding to each layer by analogy until the requirement of the sandwich structure of the product is met;
and (5): the surface of the sandwich structure product is polished after being cured according to a dry process system, demoulding media such as demoulding agents on the inner surface and the outer surface (or demoulding materials such as a paved demoulding film) and other process auxiliary materials for forming the product are removed, the surface of the product is ensured to be clean and smooth, a prepared weather-resistant wave-transmitting surface coating and a prepared wave-transmitting inner surface coating are sprayed, the surface is ensured to be uniformly and completely coated, the phenomena of spraying leakage, sagging and the like are avoided, and the surface is strictly prevented from being adhered with impurities.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (10)
1. A manufacturing method of a broadband high-power resistant housing is characterized by comprising the following steps: the broadband high-power resistant housing comprises a plurality of groups of layer structures, wherein the inner layer comprises a plurality of layers; the manufacturing method of the broadband and high-power resistant housing comprises a wet forming process and a dry forming process.
2. The method for manufacturing a broadband high-power tolerant enclosure according to claim 1, wherein the method comprises the following steps: the broadband high-power-resistant housing sequentially comprises an exterior coating, an outer skin, an inner layer and an inner surface coating from outside to inside, wherein the inner layer is provided with a core material and a composite material skin; the core material and the composite material skin comprise a plurality of groups.
3. The method for manufacturing a broadband high-power tolerant housing according to claim 2, wherein the method comprises the following steps: in the wet forming process, resin glue solution is formed between the skin and the core material when the skin is formed;
or in the dry forming process, the skin and the core material are bonded through the skin and a glue film of the resin matrix, and the thickness of an interlayer glue film is uniform, compact, free of impurities and layering, so that the skin and the core material are bonded firmly;
the wet forming process and the dry forming process both adopt a whole-cover integrated forming technology, and skin and core materials of an electric working area both adopt a uniform layer structure without a seam, which is consistent with the shape of a product.
4. The method for manufacturing a broadband high-power tolerant enclosure according to claim 1, wherein the method comprises the following steps: the surface coating is weather-resistant wave-transmitting surface coating; the inner surface coating is a wave-transparent inner surface coating.
5. The method for manufacturing a broadband high-power tolerant enclosure according to claim 1, wherein the method comprises the following steps: the outer skin is a low-dielectric low-loss high-strength weather-resistant composite material outer skin; the composite material skin is a low-dielectric low-loss high-strength weather-resistant composite material skin, the thickness tf of the composite material skin is less than or equal to 0.8mm, the dielectric constant epsilon is less than or equal to 4.2, and the dielectric loss tg delta is less than or equal to 0.015.
6. The method for manufacturing a broadband high-power tolerant enclosure according to claim 1, wherein the method comprises the following steps: the core material is low-dielectric low-loss closed-cell foam or honeycomb and other core materials.
7. The method for manufacturing a broadband high-power tolerant enclosure according to claim 4, wherein the method comprises the following steps: the spraying thickness of the exterior coating and the interior coating is less than or equal to 0.05 mm.
8. The method for manufacturing a broadband high-power tolerant enclosure according to claim 6, wherein the method comprises the following steps: the thickness tc of the core materials such as foam or honeycomb and the like is less than or equal to 30mm, the dielectric constant epsilon is less than or equal to 1.09, and the dielectric loss tg delta is less than or equal to 0.005.
9. The method for manufacturing a broadband high-power tolerant enclosure according to claim 1, wherein the method comprises the following steps: the wet forming process comprises the following steps:
step (1): spreading a reinforcing fabric prepared in advance for forming the low-dielectric low-loss high-strength weather-resistant composite material outer skin on the surface of a clean mould coated with a coating agent or a spread demoulding film, preparing a mixture glue solution of resin, a curing agent and other auxiliaries for forming the outer skin at the same time, stirring and mixing the mixture glue solution uniformly, then uniformly impregnating and soaking the resin mixture glue solution into the reinforcing fabric, removing bubbles and redundant glue solution in the reinforcing fabric, strictly preventing impurities from being mixed, and ensuring that the outer skin is uniformly and fittingly adhered to the surface of the mould;
step (2): laying prefabricated low-dielectric low-loss closed-cell foam or honeycomb on the upper surface of the molded outer skin, removing air bubbles between the outer skin and the core material, strictly preventing impurities from being mixed in, and ensuring that the whole contact surface of the core material is uniformly and snugly adhered to the surface of the outer skin through resin glue liquid in the skin;
and (3): when the composite material skin is manufactured in the steps (1) and (2), paving a reinforced fabric prepared in advance for forming the low-dielectric low-loss high-strength weather-resistant composite material skin on a clean platform die for forming the skin, preparing a mixture glue solution of resin, a curing agent and other auxiliaries for forming the skin, stirring and mixing the mixture glue solution uniformly, then uniformly impregnating the resin mixture glue solution into the reinforced fabric, removing bubbles and redundant resin glue solution in the reinforced fabric, strictly preventing impurities from being mixed, paving the impregnated reinforced fabric on the surface of the core material, removing bubbles between the reinforced fabric and the core material layer, strictly preventing impurities from being mixed, and ensuring that the skin is adhered to the surface of the core material uniformly through the resin glue solution in the skin;
and (4): forming the core material layer or the skin layer corresponding to each layer by analogy until the requirement of the sandwich structure of the product is met;
and (5): the sandwich structure product is cured according to a wet process system, and then surface polishing processing is carried out, so as to remove the release agent on the inner surface and the outer surface or the paved release film and other process auxiliary materials for forming the product, ensure that the surface of the product is clean and smooth, and spray the prepared weather-resistant wave-transmitting surface coating and wave-transmitting inner surface coating, ensure that the surface is uniformly and completely coated, have no spraying leakage and sagging phenomena, and strictly prevent the surface from being adhered with impurities.
10. The method for manufacturing a broadband high-power tolerant enclosure according to claim 1, wherein the method comprises the following steps: the dry forming process comprises the following steps:
step (1): spreading a prepreg prepared in advance for forming the low-dielectric low-loss high-strength weather-resistant composite outer skin on the surface of a clean mould coated with a coating agent or a spread demoulding film, removing air bubbles between the prepreg and the mould surface and between prepreg layers, strictly preventing impurities from being mixed, and ensuring that the prepreg is uniformly and comfortably adhered to the surface of the mould;
step (2): paving a prefabricated resin film which is the same as the skin and a resin matrix on the upper surface of the molded outer skin, wherein the resin film is required to be paved uniformly and fittingly, removing bubbles between the film and a prepreg layer, strictly preventing impurities from being mixed, then paving a low-dielectric low-loss closed-cell foam or honeycomb core material on the surface of the film, removing bubbles between the film and the core material, strictly preventing impurities from being mixed, and ensuring that the whole contact surface of the core material is uniformly and fittingly adhered to the surface of the film;
and (3): spreading a prefabricated resin film which is the same as the skin and a resin matrix on the upper surface of the formed core material, wherein the resin film is required to be spread uniformly and closely, removing bubbles between the film and the core material layer, strictly preventing impurities from being mixed, then spreading a low-dielectric low-loss high-strength weather-resistant composite material skin prepreg on the surface of the film, removing bubbles between the prepreg and the film and between the prepreg layers, strictly preventing impurities from being mixed, and ensuring that the skin prepreg is uniformly and closely adhered to the surface of the core material;
and (4): forming the core material layer or the skin layer corresponding to each layer by analogy until the requirement of the sandwich structure of the product is met;
and (5): the sandwich structure product is cured according to a dry process system and then subjected to surface polishing processing, the release agent on the inner surface and the outer surface or a paved release film and other process auxiliary materials for forming the product are removed, the surface of the product is ensured to be clean and smooth, the prepared weather-resistant wave-transmitting surface coating and wave-transmitting inner surface coating are sprayed, the surface is ensured to be uniformly and completely coated, the spraying and sagging phenomena are avoided, and the surface is strictly prevented from being adhered with impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561800.2A CN112873899A (en) | 2020-12-25 | 2020-12-25 | Manufacturing method of broadband high-power-resistant housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561800.2A CN112873899A (en) | 2020-12-25 | 2020-12-25 | Manufacturing method of broadband high-power-resistant housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112873899A true CN112873899A (en) | 2021-06-01 |
Family
ID=76043584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011561800.2A Pending CN112873899A (en) | 2020-12-25 | 2020-12-25 | Manufacturing method of broadband high-power-resistant housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112873899A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114784497A (en) * | 2022-04-29 | 2022-07-22 | 中国舰船研究设计中心 | High-power-resistant three-dimensional frequency-selection antenna housing structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055068A (en) * | 2009-10-27 | 2011-05-11 | 上海玻璃钢研究院有限公司 | Manufacturing method of wind shield for a vehicular radar |
| CN105563964A (en) * | 2015-12-30 | 2016-05-11 | 中国人民解放军国防科学技术大学 | Composite material for airborne radomes, and preparation method thereof |
| CN105856589A (en) * | 2016-04-27 | 2016-08-17 | 航天材料及工艺研究所 | Integrated molding method for high-temperature-resistant heat-insulation wave-transmissive radome with honeycomb interlayer C |
| CN106042503A (en) * | 2016-05-31 | 2016-10-26 | 航天材料及工艺研究所 | Preparation method of ultra-light sandwich structure composite material |
| CN108274879A (en) * | 2018-02-26 | 2018-07-13 | 上海本哲科技有限公司 | A kind of preparation method of high frequency wave transparent sandwich structure composite material 5G antenna houses |
| CN109866496A (en) * | 2017-12-04 | 2019-06-11 | 中国航空工业集团公司济南特种结构研究所 | A kind of frequency selects the preparation method of radome exemplar |
-
2020
- 2020-12-25 CN CN202011561800.2A patent/CN112873899A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055068A (en) * | 2009-10-27 | 2011-05-11 | 上海玻璃钢研究院有限公司 | Manufacturing method of wind shield for a vehicular radar |
| CN105563964A (en) * | 2015-12-30 | 2016-05-11 | 中国人民解放军国防科学技术大学 | Composite material for airborne radomes, and preparation method thereof |
| CN105856589A (en) * | 2016-04-27 | 2016-08-17 | 航天材料及工艺研究所 | Integrated molding method for high-temperature-resistant heat-insulation wave-transmissive radome with honeycomb interlayer C |
| CN106042503A (en) * | 2016-05-31 | 2016-10-26 | 航天材料及工艺研究所 | Preparation method of ultra-light sandwich structure composite material |
| CN109866496A (en) * | 2017-12-04 | 2019-06-11 | 中国航空工业集团公司济南特种结构研究所 | A kind of frequency selects the preparation method of radome exemplar |
| CN108274879A (en) * | 2018-02-26 | 2018-07-13 | 上海本哲科技有限公司 | A kind of preparation method of high frequency wave transparent sandwich structure composite material 5G antenna houses |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114784497A (en) * | 2022-04-29 | 2022-07-22 | 中国舰船研究设计中心 | High-power-resistant three-dimensional frequency-selection antenna housing structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108521016B (en) | Shipborne radar antenna housing and manufacturing method thereof | |
| US5662293A (en) | Polyimide foam-containing radomes | |
| JP5084808B2 (en) | Canapé radome | |
| CN109514947B (en) | Shelter cabin plate and preparation method thereof | |
| CN106671557B (en) | A kind of aramid fiber reinforced composite frequency selective surface reflector forming method | |
| CN111186186B (en) | Double-layer skin wave-absorbing composite material sandwich structure and preparation method thereof | |
| CN207947378U (en) | A kind of D shipborne radar cover | |
| CN112873899A (en) | Manufacturing method of broadband high-power-resistant housing | |
| CN111186201A (en) | Double-skin wave-absorbing honeycomb sandwich structure and preparation method thereof | |
| CN111186190A (en) | Double-layer skin wave-absorbing foam sandwich structure and preparation method thereof | |
| CN113178694B (en) | Self-adhesive prepreg-containing broadband radome and preparation method thereof | |
| US11894606B1 (en) | Broadband radome structure | |
| CN112829400A (en) | Structure/stealth integrated composite material and preparation method thereof | |
| CN113650389A (en) | Adhesive curing wave-absorbing composite material and preparation method thereof | |
| CN113681942A (en) | Co-curing wave-absorbing composite material and preparation method thereof | |
| CN113547822A (en) | Radar wave-absorbing structure and preparation method thereof | |
| CN215040968U (en) | Structure/stealth integrated composite material and aircraft skin or ship deck structure | |
| CN115284700A (en) | Light high-strength composite wave-absorbing foam board and preparation method thereof | |
| CN110356071B (en) | Invisible composite material forming process and application | |
| CN110718759A (en) | Application of polystyrene foam in antenna protection and antenna cover | |
| RU2168820C1 (en) | Method for manufacture of laminated antenna reflector | |
| CN215560040U (en) | High-temperature-resistant TPU (thermoplastic polyurethane) shielding adhesive tape for pre-spraying of aero-engine | |
| CN112701466A (en) | Sandwich structure airborne radome with water leakage holes and preparation method thereof | |
| JP2002180568A (en) | Electromagnetic wave absorptive object and its execution method | |
| EP4065833B1 (en) | A wind turbine component and corresponding resin infusion method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |