CN116922815A - Forming method of wind deflector for fairing and wind deflector - Google Patents
Forming method of wind deflector for fairing and wind deflector Download PDFInfo
- Publication number
- CN116922815A CN116922815A CN202311204424.5A CN202311204424A CN116922815A CN 116922815 A CN116922815 A CN 116922815A CN 202311204424 A CN202311204424 A CN 202311204424A CN 116922815 A CN116922815 A CN 116922815A
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- silicone rubber
- coated fabric
- wind deflector
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- rubber coated
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 107
- 239000004945 silicone rubber Substances 0.000 claims abstract description 97
- 239000004744 fabric Substances 0.000 claims abstract description 74
- 239000000853 adhesive Substances 0.000 claims abstract description 26
- 230000001070 adhesive effect Effects 0.000 claims abstract description 26
- 238000010073 coating (rubber) Methods 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 9
- 238000009461 vacuum packaging Methods 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 239000002738 chelating agent Substances 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- -1 quinone oxime compound Chemical class 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical compound NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 5
- 229920000388 Polyphosphate Polymers 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 5
- 125000005439 maleimidyl group Chemical class C1(C=CC(N1*)=O)=O 0.000 claims description 5
- 150000001451 organic peroxides Chemical class 0.000 claims description 5
- 229920000768 polyamine Polymers 0.000 claims description 5
- 239000001205 polyphosphate Substances 0.000 claims description 5
- 235000011176 polyphosphates Nutrition 0.000 claims description 5
- 150000003557 thiazoles Chemical class 0.000 claims description 5
- 239000011152 fibreglass Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- 230000011218 segmentation Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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
- B29C70/342—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 using isostatic pressure
-
- 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
- B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3097—Cosmonautical vehicles; Rockets
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a forming method of a wind deflector for a fairing and the wind deflector, belonging to the field of aerospace, comprising the following steps: acquiring preset data of a wind shield for a fairing; setting a first layer of silicone rubber coated fabric with preset specification according to preset data of the wind shield, and paving the first layer of silicone rubber coated fabric to a die; preparing a silicone rubber adhesive according to a first preset condition, and coating the silicone rubber adhesive on the surface of the first layer of silicone rubber coated fabric; aligning and pasting the second layer of silicone rubber coating fabric with the first layer of silicone rubber coating fabric; sequentially repeating the alignment and pasting of the silicone rubber coated fabric for preset times; vacuum packaging the formed silicone rubber coated fabric according to a second preset condition, and vulcanizing according to a third preset condition; and cutting the formed silicone rubber coated fabric according to a fourth preset condition to obtain the wind shield. According to the technical scheme, the wind shield is of an integrated structure and is of a flexible structure, and the wind shield can be suitable for fairings of various size structures, so that the development period and the production cost of the wind shield are greatly reduced.
Description
Technical Field
The invention belongs to the field of aerospace, and particularly relates to a forming method of a wind deflector for a fairing and the wind deflector.
Background
The fairing wind shield is an important component of a rocket fairing, and in the rocket launching and lifting process, because the rocket is high in speed, air can greatly scour the fairing, and for the current common clam type fairing, air flow easily enters the fairing, so that the payload and the integral structural stability of the rocket are subjected to fatal influence. The current common mode is to add a wind shield on the outer side of the abutting surface of the fairing to resist the scouring of the airflow and prevent the airflow from directly entering the fairing. But current deep bead is phenolic aldehyde glass steel material, and the shaping of shaping in-process needs heating pressurization solidification, and in order to adapt to the appearance of radome, needs the metal mold of the special profile of customization, and development cycle is long, product cost is high, and because mould and autoclave size's restriction, the deep bead generally can carry out the segmentation concatenation, and the piece department receives the air current to wash away easily, influences rocket's flight stability.
Disclosure of Invention
The invention provides a forming method of a wind shield for a fairing and the wind shield, which are used for solving the problems of high production cost, long development period and poor reliability of a joint in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a method of forming a wind deflector for a cowling, comprising:
acquiring preset data of a wind shield for a fairing;
setting a first layer of silicone rubber coated fabric with preset specification according to preset data of the wind shield, and paving the first layer of silicone rubber coated fabric to a die;
preparing a silicone rubber adhesive according to a first preset condition, and coating the silicone rubber adhesive on the surface of the first layer of silicone rubber coated fabric;
aligning and pasting the second layer of silicone rubber coating fabric with the first layer of silicone rubber coating fabric;
sequentially repeating the alignment and pasting of the silicone rubber coated fabric for preset times;
vacuum packaging the formed silicone rubber coated fabric according to a second preset condition, and vulcanizing according to a third preset condition;
and cutting the formed silicone rubber coated fabric according to a fourth preset condition to obtain the wind shield.
Optionally, the preset length of the wind shield is 4700mm, and the preset width is 80mm.
Optionally, the length L of the first layer of silicone rubber coated fabric is 4800mm less than or equal to L less than or equal to 5000mm, the width W is 100mm less than or equal to W less than or equal to 120mm, and the thickness H is 0.1mm less than or equal to H less than or equal to 1.9mm.
Optionally, the mold adopts a molded flat mold, and the flat plate can be made of one of glass fiber reinforced plastic, a wood plate, an aluminum plate and a stainless steel plate.
Optionally, the silicone rubber adhesive comprises silicone rubber, a vulcanizing agent, an accelerator and a chelating agent;
the silicone rubber, the vulcanizing agent, the accelerator and the chelating agent are arranged according to a preset proportion.
Optionally, the vulcanizing agent is at least one of organic peroxide, quinone oxime compound, multi-component polymer, urethane and maleimide derivative;
the accelerator is at least one of sulfenamides, thiazoles and thiurams;
the chelating agent is at least one of polyphosphate, aminocarboxylic acid, 1, 3-diketone, hydroxycarboxylic acid and polyamine.
Optionally, the coating thickness a of the silicone rubber adhesive is 0.05mm or less and a or less and 0.2mm or less.
Optionally, the silicone rubber coated fabric is repeatedly aligned and stuck according to a fifth preset condition, and the preset alignment and stuck times are 10-18 times.
Optionally, vacuum packaging the glued silicone rubber coated fabric according to a second preset condition by sequentially adopting a separation film, an airfelt, a sealing rubber strip and a vacuum film, and vulcanizing the vacuum-packaged silicone rubber coated fabric according to a third preset condition.
Optionally, the wind shield for the fairing is formed by the method of any one of the above.
The scheme of the invention at least comprises the following beneficial effects:
the scheme of the invention comprises the following steps: acquiring preset data of a wind shield for a fairing; setting a first layer of silicone rubber coated fabric with preset specification according to preset data of the wind shield, and paving the first layer of silicone rubber coated fabric to a die; preparing a silicone rubber adhesive according to a first preset condition, and coating the silicone rubber adhesive on the surface of the first layer of silicone rubber coated fabric; aligning and pasting the second layer of silicone rubber coating fabric with the first layer of silicone rubber coating fabric; sequentially repeating the alignment and pasting of the silicone rubber coated fabric for preset times; vacuum packaging the formed silicone rubber coated fabric according to a second preset condition, and vulcanizing according to a third preset condition; and cutting the formed silicone rubber coated fabric according to a fourth preset condition to obtain the wind shield.
According to the technical scheme, the obtained wind shield is of an integrated structure, so that influence caused by segmentation is avoided; the formed wind shield is of a flexible structure, so that the wind shield is convenient to store and transport; the wind shield can be suitable for fairings with various size structures, and meanwhile, the development period and the production and manufacturing cost of the wind shield can be greatly reduced.
Drawings
FIG. 1 is a schematic view of a method of molding a wind deflector for a cowl according to an embodiment of the present invention;
fig. 2 is a schematic view of a wind deflector for a cowling according to an embodiment of the present invention.
Reference numerals illustrate:
1. a molded wind deflector; 2. bolt holes.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1 and 2, an embodiment of the present invention proposes a method for forming a wind deflector for a cowling, including:
step 11, obtaining preset data of a wind shield for a fairing;
step 12, setting a first layer of silicone rubber coated fabric with preset specification according to preset data of the wind shield, and paving the first layer of silicone rubber coated fabric to a die;
step 13, preparing a silicone rubber adhesive according to a first preset condition, and coating the silicone rubber adhesive on the surface of the first layer of silicone rubber coated fabric;
step 14, aligning and pasting the second layer of silicone rubber coating fabric and the first layer of silicone rubber coating fabric;
step 15, repeatedly aligning and pasting the silicone rubber coated fabric for preset times in sequence;
step 16, vacuum packaging the formed silicone rubber coated fabric according to a second preset condition, and vulcanizing according to a third preset condition;
and step 17, cutting the formed silicone rubber coated fabric according to a fourth preset condition to obtain the wind shield.
In this embodiment, firstly, the length and width dimensions of the wind deflector of the fairing are obtained, and as in this embodiment, the length is 4700mm and the width is 80mm, and meanwhile, the error of 20mm is reserved in each of the length and width directions; in practice, the specification of the wind shield can be set according to the requirements of the fairing.
The silicon rubber coated glass fiber fabric (called as silicon adhesive tape for short) is formed by coating (such as knife coating, dipping or calendaring) organic silicon rubber on glass fiber fabric, and is a high-performance and multipurpose composite material.
The common base fabric is alkali-free, medium-alkali, high silica, high-strength and alkali-resistant fiber fabric;
silicon rubber is classified into a general type and a flame retardant type.
The material has high temperature resistance and good low temperature performance, and can be used for a long time between-70 ℃ and 260 ℃; the high-silicon-oxygen silica gel cloth has high tensile strength, excellent sealing performance, excellent chemical resistance and aging resistance, excellent electrical insulation and dielectric properties, higher temperature resistance and flame retardance, and can be used for a long time at 900 ℃.
In this embodiment, the wind guard is formed by adhering multiple layers of silicone rubber coated fabrics, and the silicone rubber coated fabrics with certain length and width are cut according to the shape according to the size of the wind guard.
And placing the cut silicon rubber coated fabric on a flat die, wherein the required die can be made of a flat plate, and the width and length of each side of the flat plate are 5-10cm greater than those of required materials, and the materials can be aluminum, glass fiber reinforced plastic, stainless steel, wood and the like.
According to the silicon rubber: vulcanizing agent: and (3) an accelerator: chelating agent = 100:10:5:1, preparing a silicone rubber adhesive according to the mass ratio;
the vulcanizing agent is at least one of organic peroxide, quinone oxime compound, multi-component polymer, carbamic acid ethyl ester and maleimide derivative;
the accelerator is at least one of sulfenamides, thiazoles and thiurams;
the chelating agent is at least one of polyphosphate, aminocarboxylic acid, 1, 3-diketone, hydroxycarboxylic acid and polyamine;
uniformly coating the prepared silicone rubber adhesive on the surface of the silicone rubber coated fabric; repeatedly performing alignment and pasting for a plurality of times until the number of required product layers is reached, wherein 10-18 layers can be selected in the embodiment, and the number of pasting layers and the number of times can be specifically set according to actual needs;
vacuum packaging the molded silicone rubber coated fabric, namely vacuum packaging the molded silicone rubber coated fabric layer by layer according to the sequence of a separation film, an airfelt, a sealing rubber strip and a vacuum film, wherein after packaging, vulcanizing time is not less than 24 hours at room temperature (20-30 ℃); sulfur crosslinking occurs during vulcanization, which refers to the process of attaching one or more sulfur atoms to the polymer chain to form a bridge structure, from a liquid state to a solid state.
The molded silicone rubber coated fabric is cut according to the specification of the required wind deflector, and the length is 4700mm and the width is 80mm in the embodiment, and meanwhile, the error of 20mm is reserved in the length and width directions respectively, so that the wind deflector is obtained.
As shown in fig. 2, for the molded wind deflector 1, a bolt hole 2 for connecting a fairing is provided on the wind deflector, and the size and position of the bolt hole 2 are set, and the mutual distance is set according to the relevant requirements.
According to the technical scheme, the obtained wind shield is of an integrated structure, so that influence caused by segmentation is avoided; the molded wind shield has a flexible structure, so that the wind shield is convenient to store and transport; the wind shield can be suitable for fairings with various size structures, and meanwhile, the development period and the production and manufacturing cost of the wind shield can be greatly reduced.
In an alternative embodiment of the present invention, the preset length of the wind guard is 4700mm, and the preset width is 80mm.
In this embodiment, the preset length of the wind deflector is 4700mm, the preset width is 80mm, and errors of 20mm are reserved in the length and width directions respectively; in practice, this may be set according to the specifications of the wind deflector required for the cowling.
In an alternative embodiment of the present invention, the length L of the first layer of silicone rubber coated fabric is 4800mm less than or equal to L less than or equal to 5000mm, the width W is 100mm less than or equal to W less than or equal to 120mm, and the thickness H is 0.1mm less than or equal to H less than or equal to 1.9mm.
In this embodiment, the length L of the first layer of silicone rubber coated fabric is 4800mm less than or equal to L less than or equal to 5000mm, the width W is 100mm less than or equal to W less than or equal to 120mm, and the thickness H is 0.1mm less than or equal to H less than or equal to 1.9mm.
The thickness H of each layer of silicon rubber coating fabric is 0.1mm or less and H or less and 1.9mm or less; the specifications of each layer of silicone rubber coated fabric are the same; the alignment and the adhesion are convenient, and the formed product is ensured to meet the functional requirement.
In an alternative embodiment of the present invention, the mold is a molded flat mold, and the flat plate may be made of one of glass fiber reinforced plastic, wood board, stainless steel board, and aluminum.
In this example, need not special customization mould, only need with the panel that has the level face can, the material of dull and stereotyped can be one of glass steel, plank, corrosion resistant plate, aluminium system, it is more convenient, practice thrift the cost.
In an alternative embodiment of the present invention, the silicone rubber adhesive comprises silicone rubber, vulcanizing agent, accelerator, chelating agent;
the silicone rubber, the vulcanizing agent, the accelerator and the chelating agent are arranged according to a preset proportion.
In this example, the silicone rubber adhesive includes silicone rubber, a vulcanizing agent, an accelerator, and a chelating agent; the silicone rubber, the vulcanizing agent, the accelerator and the chelating agent are mixed according to the following weight ratio of 100:10:5:1, preparing a silicone rubber adhesive according to the mass ratio, wherein the required silicone rubber adhesive meets the product requirement.
In an alternative embodiment of the present invention, the vulcanizing agent is at least one of an organic peroxide, a quinone oxime compound, a multi-component polymer, a urethane, and a maleimide derivative;
the accelerator is at least one of sulfenamides, thiazoles and thiurams;
the chelating agent is at least one of polyphosphate, aminocarboxylic acid, 1, 3-diketone, hydroxycarboxylic acid and polyamine.
In this embodiment, the vulcanizing agent is at least one of an organic peroxide, a quinone oxime compound, a multi-component polymer, a urethane, and a maleimide derivative, and may be specifically selected according to actual needs;
the accelerator is at least one of sulfenamides, thiazoles and thiurams, and can be specifically selected according to actual needs;
the chelating agent is at least one of polyphosphate, aminocarboxylic acid, 1, 3-diketone, hydroxycarboxylic acid and polyamine, and can be specifically selected according to actual needs.
In an alternative embodiment of the present invention, the thickness a of the silicone rubber adhesive is 0.05mm +.a +.0.2 mm.
In the example, the coating thickness a of the silicon rubber adhesive is less than or equal to 0.05mm and less than or equal to 0.2mm, and the product requirement can be better met after the adhesive is adhered.
In an alternative embodiment of the present invention, the silicone rubber coated fabric is repeatedly aligned and adhered according to a fifth preset condition, and the preset number of aligned and adhered times is 10-18.
In this embodiment, the thickness a of the silicone rubber coating fabric is equal to or less than 0.05mm and equal to or less than 0.2mm according to the thickness a of the silicone rubber adhesive, the length L of the silicone rubber coating fabric is equal to or less than 4800mm and equal to or less than L and equal to 5000mm, the width W is equal to or less than 100mm and equal to or less than 120mm, the thickness H is equal to or less than 0.1mm and equal to or less than 1.9mm, repeated alignment adhesion is performed, the preset alignment adhesion times are 10-18 times, and in practice, the specification and the alignment adhesion times of the silicone rubber coating fabric can be adjusted according to the size and the requirements of the fairing.
According to an alternative embodiment of the invention, the adhered silicone rubber coated fabric is vacuum-encapsulated according to the second preset condition by sequentially adopting the isolating film, the airfelt, the sealing rubber strip and the vacuum film, and the vacuum-encapsulated silicone rubber coated fabric is vulcanized according to the third preset condition.
In the example, the adhered silicone rubber coated fabric is vacuum-encapsulated by sequentially adopting a separation film, an airfelt, a sealing rubber strip and a vacuum film, and the vulcanizing time of the vacuum-encapsulated silicone rubber coated fabric is not less than 24 hours at room temperature (20-30 ℃).
An alternative embodiment of the present invention further comprises a wind deflector for a fairing, the wind deflector for a fairing being formed by a method as described in any of the preceding claims.
As shown in fig. 2, for the molded wind deflector 1, a bolt hole 2 for connecting a fairing is arranged on the wind deflector, and the size, position and interval of the bolt hole 2 are set according to the related technical requirements of the fairing.
The flexible wind deflector is formed by laminating and bonding silicone rubber coated fabrics. The wind shield main body is made of silicon rubber, so that the wind shield main body is of a flexible structure, and can be bent to be attached to the outer contour of the fairing; the wind shield is in a plane structure during molding, so that a metal mold with a special molded surface is not needed to be customized; the silicon rubber adhesive is vulcanized at room temperature, so that the silicon rubber adhesive can be directly cured and molded at room temperature; the wind deflector is made of silicone rubber coated fabric, and the length of the wind deflector can be customized and can reach 200-300 m at maximum, so that the wind deflector can be integrally formed according to the size of the fairing without segmentation.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (10)
1. A method of forming a wind deflector for a cowling, comprising:
acquiring preset data of a wind shield for a fairing;
setting a first layer of silicone rubber coated fabric with preset specification according to preset data of the wind shield, and paving the first layer of silicone rubber coated fabric to a die;
preparing a silicone rubber adhesive according to a first preset condition, and coating the silicone rubber adhesive on the surface of the first layer of silicone rubber coated fabric;
aligning and pasting the second layer of silicone rubber coating fabric with the first layer of silicone rubber coating fabric;
sequentially repeating the alignment and pasting of the silicone rubber coated fabric for preset times;
vacuum packaging the formed silicone rubber coated fabric according to a second preset condition, and vulcanizing according to a third preset condition;
and cutting the formed silicone rubber coated fabric according to a fourth preset condition to obtain the wind shield.
2. The method of forming a wind deflector for a cowling according to claim 1, wherein the wind deflector has a predetermined length of 4700mm and a predetermined width of 80mm.
3. The method of forming a windshield for a fairing as recited in claim 1, wherein said first layer of silicone rubber coated fabric has a length L of 4800mm +.l +.5000 mm, a width W of 100mm +.w +.120 mm, and a thickness H of 0.1mm +.h +.1.9 mm.
4. The method of forming a wind deflector for a cowling according to claim 1, wherein the mold is a formed flat mold, and the flat plate is made of one of glass fiber reinforced plastic, wood, aluminum and stainless steel.
5. The method of molding a windshield for a cowling according to claim 1, wherein the silicone rubber adhesive comprises silicone rubber, a vulcanizing agent, an accelerator, and a chelating agent;
the silicone rubber, the vulcanizing agent, the accelerator and the chelating agent are arranged according to a preset proportion.
6. The method for forming a wind deflector for a cowling according to claim 5, wherein the vulcanizing agent is at least one of an organic peroxide, a quinone oxime compound, a multiretaining polymer, a urethane, and a maleimide derivative;
the accelerator is at least one of sulfenamides, thiazoles and thiurams;
the chelating agent is at least one of polyphosphate, aminocarboxylic acid, 1, 3-diketone, hydroxycarboxylic acid and polyamine.
7. The method of forming a wind deflector for a cowling according to claim 1, wherein the silicone rubber adhesive application thickness a is 0.05mm +.a +.0.2 mm.
8. The method of forming a wind deflector for a cowling according to claim 1, wherein the silicone rubber coated fabric is repeatedly aligned and stuck according to a fifth preset condition, and the number of times of the preset aligned and stuck is 10 to 18.
9. The method of forming a windshield for a cowling according to claim 1, wherein the bonded silicone rubber coated fabric is vacuum-encapsulated according to a second preset condition by using a separator, a airfelt, a sealing tape, and a vacuum film in this order, and the vacuum-encapsulated silicone rubber coated fabric is vulcanized according to a third preset condition.
10. A wind deflector for a fairing, characterized in that the wind deflector for a fairing is shaped by a method according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311204424.5A CN116922815A (en) | 2023-09-19 | 2023-09-19 | Forming method of wind deflector for fairing and wind deflector |
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| CN202311204424.5A CN116922815A (en) | 2023-09-19 | 2023-09-19 | Forming method of wind deflector for fairing and wind deflector |
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| CN102795338A (en) * | 2012-07-27 | 2012-11-28 | 北京卫星制造厂 | Micro unmanned aerial vehicle carbon fiber rotor wing and preparation method thereof |
| CN107877957A (en) * | 2016-09-29 | 2018-04-06 | 航天特种材料及工艺技术研究所 | A kind of flexible gas-filled heat shield and preparation method thereof |
| CN110370677A (en) * | 2019-07-24 | 2019-10-25 | 天津爱思达航天科技有限公司 | A kind of manufacturing method of radome fairing |
| CN218701844U (en) * | 2022-09-01 | 2023-03-24 | 江苏恒神股份有限公司 | Composite material plate and battery case |
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2023
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795338A (en) * | 2012-07-27 | 2012-11-28 | 北京卫星制造厂 | Micro unmanned aerial vehicle carbon fiber rotor wing and preparation method thereof |
| CN107877957A (en) * | 2016-09-29 | 2018-04-06 | 航天特种材料及工艺技术研究所 | A kind of flexible gas-filled heat shield and preparation method thereof |
| CN110370677A (en) * | 2019-07-24 | 2019-10-25 | 天津爱思达航天科技有限公司 | A kind of manufacturing method of radome fairing |
| CN218701844U (en) * | 2022-09-01 | 2023-03-24 | 江苏恒神股份有限公司 | Composite material plate and battery case |
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