CN106630983A - Preparation method of heat protection/insulation integral antenna cover and mold thereof - Google Patents

Preparation method of heat protection/insulation integral antenna cover and mold thereof Download PDF

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Publication number
CN106630983A
CN106630983A CN201611205315.5A CN201611205315A CN106630983A CN 106630983 A CN106630983 A CN 106630983A CN 201611205315 A CN201611205315 A CN 201611205315A CN 106630983 A CN106630983 A CN 106630983A
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China
Prior art keywords
heat
insulation
antenna house
knitted body
cenosphere
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CN201611205315.5A
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Chinese (zh)
Inventor
王芬
佘平江
张军
尹正帅
吴广利
郭培江
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Hubei Sanjiang Space Jiangbei Mechanical Engineering Co Ltd
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Hubei Sanjiang Space Jiangbei Mechanical Engineering Co Ltd
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Priority to CN201611205315.5A priority Critical patent/CN106630983A/en
Publication of CN106630983A publication Critical patent/CN106630983A/en
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/71—Ceramic products containing macroscopic reinforcing agents
    • C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
    • C04B35/80—Fibres, filaments, whiskers, platelets, or the like
    • C04B35/82—Asbestos; Glass; Fused silica
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/528—Spheres
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5284—Hollow fibers, e.g. nanotubes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/77—Density
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient

Abstract

The invention discloses a preparation method of a heat protection/insulation integral antenna cover and a mold thereof. According to the method, the heat protection/insulation integral antenna cover is obtained through weaving body weaving, weaving body pretreatment, soaking compounding, heat treatment, machine tooling, mold assembly, micrometer silicon oxide hollow microsphere slurry preparation, casting, vacuum drying and curing. The mold comprises a male mold and a female mold which are mutually matched; the male mold is a cylinder; a hollow reverse conical surface is arranged in the middle of the male mold; an annular positioning groove is formed in the top of the reverse conical surface; the female mold is a reverse cone body; an annular positioning block is arranged on the top outer wall of the female mold; a vertical material injection pipe is arranged between the top outer wall of the female mold and the annular positioning block; a material discharging ring is arranged on the top of the female mold arranged at one side of the material injection pipe. The heat protection/insulation integral antenna cover has the advantages that the wave transmission performance and the heat protection/insulation performance are excellent; the preparation method is simple; the method can be widely applied to the fields of heat protection/insulation, ablation-resistant and wave transmission materials of antenna covers, wave transmission windows and the like.

Description

The preparation method and its mould of anti-heat-insulation integrative antenna house
Technical field
The present invention relates to composite ceramic material technical field, in particular to a kind of preparation side of anti-heat-insulation integrative antenna house Method and its mould.
Background technology
Require that environment temperature can not be too high when seeker antenna works, therefore target seeker outside is generally using antenna house+anti- The scheme of heat cover, to reduce the purpose of Antenna Operation face temperature, but the structure is present under conditions of Time Aero-Heating Effect of heat insulation can drastically decline, and in addition double cover structure wave transparent losses are big, it is big (relative to whole result to take antenna house inner space Take up room 15% or so more), the problems such as cost is of a relatively high, can not fully meet the requirement of new model.
The content of the invention
It is an object of the invention to provide a kind of preparation method of anti-heat-insulation integrative antenna house, product prepared by the method is prevented Heat-proof quality, wave transparent excellent performance.The antenna house heat-proof quality is very excellent, takes into account wave transparent, the function of high temperature resistance ablation property Functionally gradient material (FGM) replaces antenna house+heat shield combining structure material, to simplifying antenna cover structure, improves radome material performance and has Positive meaning
For achieving the above object, the preparation method of a kind of anti-heat-insulation integrative antenna house that the present invention is provided, including it is following Step：
1) knitted body weaving：Hollow quartz fiber is woven into into knitted body by braided parameter；
2) knitted body pretreatment：Knitted body is placed in water, water is boiled and then changed after Shui Shui boils 2～5 times, leads to oxygen roasting, so Wash 2～5 times afterwards；
3) impregnate compound：By step 2) water boils and obtains knitted body and be placed in Ludox, impregnate under vacuum state and vibration It is compound so as to produce big ups and downs, Ludox is filled to the gap of hollow quartz fiber knitted body, after obtaining impregnation process High silica fiber knitted body, then high silica fiber knitted body is dried；
4) repeat step 3) 2～9 times；Repeat preferably to fill knitted body space.
5) it is heat-treated：High silica fiber knitted body after will be compound is heat-treated in temperature for 600～900 DEG C, is obtained Ceramic knitted body；
6) machine adds：Knitted body is machined by product size, that is, obtains low-density, high intensity, low-dielectric loss Quartzy composite ceramics heat shield；
7) die assembly：Micron silica cenosphere casting mold, cast are manufactured according to antenna house profile arrangement It is front that quartzy composite ceramic layer is assembled on request in the heat shield inner chamber that formpiston and former are collectively forming；
8) prepared by micron silica cenosphere slurry：Cenosphere, swelling agent are added in PVAC polyvinylalcohol solution It is well mixed, obtains a micron silica cenosphere slurry；
9) pour into a mould：Micron silica cenosphere slurry is poured into heat shield inner chamber, and micron from the sprue of mould The full inner chamber of silica cenosphere filled therewith (have slip from thick liquid discharge mouth out when, stop slip casting, after vibration certain hour, After-teeming slip)；
10) it is vacuum dried：Will be filled with a micron mould for silica cenosphere slurry to enter in vacuum drying chamber, vacuum bar Under part, 100～200 DEG C of 1～5h of insulation are risen to by room temperature, lowered the temperature with stove；
11) solidify：Mould is removed, anti-heat-insulation integrative antenna house is placed in Muffle furnace, be warming up to 700～950 DEG C of guarantors 1～5h of temperature, along with the furnace cooling obtains anti-heat-insulation integrative antenna house.
Further, the step 1) in, hollow quartz fiber line density is 190～200tex.
Yet further, the step 2) in, water boils temperature for 80～100 DEG C, and the time is 2～10h；
It is 1～6h that logical oxygen and temperature are 300～500 DEG C of condition roasting times.
Yet further, the step 3) in, the density of Ludox is 1.12～1.25g/cm3, vacuum is -0.06 ～-0.09MPa, dip time is 20min～180min.
Yet further, the step 8) in, in micron silica cenosphere slurry, bulking agent levels be 5%～ 20%, PVA content is 5%～15%.
Yet further, the particle diameter of the cenosphere is 10～100 μm.
Yet further, the step 10) in, vacuum is -0.07～-0.09MPa, the speed of intensification is 2～5 DEG C/ min。
Yet further, the step 11) in, the speed of intensification is 2～5 DEG C/min.
Present invention also offers a kind of mould for preparing above-mentioned anti-heat-insulation integrative antenna house, the mould cooperates sun Mould and former, the formpiston is cylinder, and the formpiston middle setting has the hollow rounding conical surface, and the rounding conical surface top is opened Annular positioning groove is provided with, the former is inverted cone, and circular orientation block, the former are provided with the former top exterior walls Vertical filling tube is provided between top exterior walls and circular orientation block, the former top of the filling tube side is provided with discharging Ring.
Yet further, the former center top offers cylinder groove, level on the cylinder groove side former inwall Overflow launder, on the discharge ring shank of bolt is provided with.
The beneficial effects of the present invention is：
The anti-heat-insulation integrative antenna house heat shield of the present invention is using the hollow quartz that thermal conductivity factor is low, dielectric properties are excellent It is prepared by fiber, although hollow quartz fiber is hollow structure, its ultimate strength and high-intensity quartz glass fiber (solid) phase When due to its hollow structure, being conducive to improving the dielectric properties and thermal protective performance of material；Thermal insulation layer adopts micron cenosphere Material, is spheroidal, and isotropism, good fluidity, easy mold filling, heat-proof quality is excellent, realizes that thermal insulation layer is empty by pouring technology Heart microballon is integrated with heat shield quartz composite ceramics, forms the anti-heat-insulation integrative antenna house of density gradient.The present invention's is anti- Heat-insulation integrative antenna house wave transparent performance, anti-heat-proof quality are excellent, and preparation method is simple, can be widely applied to antenna house, wave transparent Window etc. prevents heat-insulated, anti-yaw damper, electromagnetic wave transparent material field.
Description of the drawings
Fig. 1 is the schematic diagram of the mould that the present invention prepares anti-heat-insulation integrative antenna house；
Fig. 2 is the detail view of former；
Fig. 3 is the detail view of formpiston；
In figure, former 1, the rounding conical surface 1.1, annular positioning groove 1.2, formpiston 2, circular orientation block 2.1, filling tube 2.2, unload Material ring 2.3, shank of bolt 2.31, cylinder groove 2.4, horizontal overflow launder 2.5,
Quartzy composite ceramics heat shield 3.
Specific embodiment
In order to preferably explain the present invention, the main contents of the present invention are further elucidated below in conjunction with specific embodiment, but Present disclosure is not limited solely to following examples.
Embodiment 1
As schemed：A kind of mould for preparing anti-heat-insulation integrative antenna house, mould cooperates former 1 and formpiston 2, former 1 For cylinder, the middle setting of former 1 has the hollow rounding conical surface 1.1, and the top of the rounding conical surface 1.1 offers annular positioning groove 1.2, Formpiston 2 is inverted cone, and circular orientation block 2.1, the top exterior walls of formpiston 2 and circular orientation block are provided with the top exterior walls of formpiston 2 Vertical filling tube 2.2 is provided between 2.1, the top of formpiston 2 of the side of filling tube 2.2 is provided with discharge ring 2.3.In formpiston 2 Between top offer cylinder groove 2.4, horizontal overflow launder 2.5 on the inwall of 2.4 side formpiston of cylinder groove 2 is provided with discharge ring 2.3 Shank of bolt 2.31.
Embodiment 2
The main processes of antenna house 1 are as follows：
1) knitted body weaving：According to the dimensional requirement of antenna house, it is woven into antenna house profiling using hollow quartz fiber and compiles Knit body；
2) knitted body pretreatment：Hollow quartz fiber knitted body is placed in container, water is boiled under the conditions of temperature is for 90 DEG C Water continuation water is changed after 6h and boils 6h, led to oxygen roasting 2h at 400 DEG C after drying and then wash the knitted body after logical oxygen roast once；
3) impregnate compound：Hollow fibre knitted body is placed in dipping equipment complex, vacuum is -0.06～-0.09MPa Under the conditions of suction density be 1.12～1.25g/cm3Ludox, be allowed in Ludox impregnate 20 minutes, then vibrate silicon it is molten Glue 20 minutes；
4) it is dried：By the dipping 120 DEG C of drying in drying box of the knitted body after compound；
5) repeat step (3)-(4) six times；
6) it is heat-treated：Hollow quartz fiber knitted body is carried out into 700 DEG C of heat treatment ceramics, ceramic knitted body is obtained；
7) machine adds：Knitted body is machined by product size, that is, obtains low-density, high intensity, low-dielectric loss Quartzy composite ceramics heat shield 3；
8) die assembly：Micron silica cenosphere casting mold, cast are manufactured according to antenna house profile arrangement It is front that quartzy composite ceramic layer 3 is assembled on request in mould；
9) prepared by thermal insulation layer：Cenosphere, swelling agent are added in PVA solution and are well mixed, is prepared into certain The micron silica cenosphere slurry of mobility；
10) pour into a mould：The micron silica cenosphere slurry for preparing is poured into heat shield inner chamber from sprue, there is slip From thick liquid discharge mouth out when, stop slip casting, vibration certain hour after, after-teeming slip.
11) it is vacuum dried：Product is put as in vacuum drying chamber, vacuumized and kept after 10min together with mould, heat up speed Rate is warming up to 100 DEG C of insulation more than 1h for 2～5 DEG C/min, lowers the temperature with stove.
12) solidify：Mould is removed, anti-heat-insulation integrative antenna house is placed in Muffle furnace, 100min is warming up to 200 DEG C, Insulation 1h, then heats to 800 DEG C of insulation 2h, and along with the furnace cooling obtains anti-heat-insulation integrative antenna house 1.
The quartzy composite ceramics antenna house 1 prepared using hollow fibre, its material property is shown in Table 1～4, fine with high-strength quartz Dimension (solid) composite ceramic material is suitable.Insulating layer material performance is shown in Table 5.
The quartz fibre performance of table 1
The composite ceramics mechanical property of table 2
The hollow fibre composite ceramics thermal conductivity factor of table 3
The composite ceramics dielectric properties of table 4
The trade mark Temperature Frequency Dielectric constant Loss angle tangent
Hollow quartz fiber composite ceramics Room temperature 35G 2.9 0.005
High-strength quartz fibre composite ceramics Room temperature 35G 3.3 0.02
The cenosphere material property of table 5
Sequence number Project Testing standard or condition Unit Measured value
1 Density GB/T1463-1988 or calculating method of weighing g/cm3 0.82
2 Melting temperature / ℃ 1650
3 Relative dielectric constant GB/T12636-1990 test frequencies 35G / 1.9
4 Loss angle tangent GB/T12636-1990 test frequencies 35G / 0.001
6 Bending strength QJ2099-91 MPa 4.2
7 Compressive strength QJ2755-95 MPa 6
9 Linear expansion coefficient GJB332A-2004 (room temperature～300 DEG C) ×10-6/℃ 2.2
10 Thermal conductivity factor GB/T10295-88 (room temperature～300 DEG C) W/m.k 0.28
Embodiment 3
The main processes of antenna house 2 are as follows：
1) knitted body weaving：According to the dimensional requirement of antenna house, it is woven into antenna house profiling using hollow quartz fiber and compiles Knit body；
2) knitted body pretreatment：Hollow quartz fiber knitted body is placed in container, water is boiled under the conditions of temperature is for 100 DEG C Water continuation water is changed after 2h and boils 6h, led to oxygen roasting 6h at 400 DEG C after drying and then wash the knitted body after logical oxygen roast once.
3) impregnate compound：Hollow fibre knitted body is placed in dipping equipment complex, vacuum is -0.06～-0.09MPa Under the conditions of suction density be 1.12～1.25g/cm3Ludox, be allowed in Ludox impregnate 20 minutes, then vibrate silicon it is molten Glue 20 minutes；
4) it is dried：By the dipping 120 DEG C of drying in drying box of the knitted body after compound；
5) repeat step (3)-(4) six times；
6) it is heat-treated：Hollow quartz fiber knitted body is carried out into 900 DEG C of heat treatment ceramics, ceramic knitted body is obtained；
7) machine adds：Knitted body is machined by product size, that is, obtains low-density, high intensity, low-dielectric loss Quartzy composite ceramics heat shield 3；
8) die assembly：Micron silica cenosphere casting mold, cast are manufactured according to antenna house profile arrangement It is front that quartzy composite ceramic layer 3 is assembled on request in mould；
9) prepared by thermal insulation layer：Cenosphere, swelling agent are added in PVA solution and are well mixed, is prepared into certain The micron silica cenosphere slurry of mobility；
10) pour into a mould：The micron silica cenosphere slurry for preparing is poured into heat shield inner chamber from sprue, there is slip From thick liquid discharge mouth out when, stop slip casting, vibration certain hour after, after-teeming slip.
11) it is vacuum dried：Product is put as in vacuum drying chamber, vacuumized and kept after 10min together with mould, heat up speed Rate is warming up to 200 DEG C of insulation more than 1h for 2～5 DEG C/min, lowers the temperature with stove.
12) solidify：Mould is removed, anti-heat-insulation integrative antenna house is placed in Muffle furnace, 100min is warming up to 200 DEG C, Insulation 1h, then heats to 950 DEG C of insulation 1h, and along with the furnace cooling obtains anti-heat-insulation integrative antenna house 2.
The quartzy composite ceramics antenna house 2 prepared using hollow fibre, its material property is shown in Table 1～4, fine with high-strength quartz Dimension (solid) composite ceramic material is suitable.Insulating layer material performance is shown in Table 5.
The quartz fibre performance of table 1
The composite ceramics mechanical property of table 2
The hollow fibre composite ceramics thermal conductivity factor of table 3
The composite ceramics dielectric properties of table 4
The trade mark Temperature Frequency Dielectric constant Loss angle tangent
Hollow quartz fiber composite ceramics Room temperature 35G 3.2 0.002
High-strength quartz fibre composite ceramics Room temperature 35G 3.3 0.02
The cenosphere material property of table 5
Sequence number Project Testing standard or condition Unit Measured value
1 Density GB/T1463-1988 or calculating method of weighing g/cm3 0.78
2 Melting temperature / ℃ 1650
3 Relative dielectric constant GB/T12636-1990 test frequencies 35G / 1.8
4 Loss angle tangent GB/T12636-1990 test frequencies 35G / 0.001
6 Bending strength QJ2099-91 MPa 4.2
7 Compressive strength QJ2755-95 MPa 5
9 Linear expansion coefficient GJB332A-2004 (room temperature～300 DEG C) ×10-6/℃ 2.5
10 Thermal conductivity factor GB/T10295-88 (room temperature～300 DEG C) W/m.k 0.26
Embodiment 4
The main processes of antenna house 3 are as follows：
1) knitted body weaving：According to the dimensional requirement of antenna house, it is woven into antenna house profiling using hollow quartz fiber and compiles Knit body；
2) knitted body pretreatment：Hollow quartz fiber knitted body is placed in container, water is boiled under the conditions of temperature is for 80 DEG C Water continuation water is changed after 6h and boils 6h, led to oxygen roasting 2h at 400 DEG C after drying and then wash the knitted body after logical oxygen roast once.
3) impregnate compound：Hollow fibre knitted body is placed in dipping equipment complex, vacuum is -0.06～-0.09MPa Under the conditions of suction density be 1.12～1.25g/cm3Ludox, be allowed in Ludox impregnate 20 minutes, then vibrate silicon it is molten Glue 20 minutes；
4) it is dried：By the dipping 120 DEG C of drying in drying box of the knitted body after compound；
5) repeat step (3)-(4) six times；
6) it is heat-treated：Hollow quartz fiber knitted body is carried out into 600 DEG C of heat treatment ceramics, ceramic knitted body is obtained；
7) machine adds：Knitted body is machined by product size, that is, obtains low-density, high intensity, low-dielectric loss Quartzy composite ceramics heat shield 3；
8) die assembly：Micron silica cenosphere casting mold, cast are manufactured according to antenna house profile arrangement It is front that quartzy composite ceramic layer 3 is assembled on request in mould；
9) prepared by thermal insulation layer：Cenosphere, swelling agent are added in PVA solution and are well mixed, is prepared into certain The micron silica cenosphere slurry of mobility；
10) pour into a mould：The micron silica cenosphere slurry for preparing is poured into heat shield inner chamber from sprue, there is slip From thick liquid discharge mouth out when, stop slip casting, vibration certain hour after, after-teeming slip.
11) it is vacuum dried：Product is put as in vacuum drying chamber, vacuumized and kept after 10min together with mould, heat up speed Rate is warming up to 100 DEG C of insulation more than 1h for 2～5 DEG C/min, lowers the temperature with stove.
12) solidify：Mould is removed, anti-heat-insulation integrative antenna house is placed in Muffle furnace, 100min is warming up to 200 DEG C, Insulation 1h, then heats to 700 DEG C of insulation 5h, and along with the furnace cooling obtains anti-heat-insulation integrative antenna house 3.
The quartzy composite ceramics antenna house prepared using hollow fibre, its material property is shown in Table 1～4, fine with high-strength quartz Dimension (solid) composite ceramic material is suitable.Insulating layer material performance is shown in Table 5.
The quartz fibre performance of table 1
The composite ceramics mechanical property of table 2
The hollow fibre composite ceramics thermal conductivity factor of table 3
The composite ceramics dielectric properties of table 4
The trade mark Temperature Frequency Dielectric constant Loss angle tangent
Hollow quartz fiber composite ceramics Room temperature 35G 3.2 0.004
High-strength quartz fibre composite ceramics Room temperature 35G 3.3 0.02
The cenosphere material property of table 5
Sequence number Project Testing standard or condition Unit Measured value
1 Density GB/T1463-1988 or calculating method of weighing g/cm3 0.80
2 Melting temperature / ℃ 1650
3 Relative dielectric constant GB/T12636-1990 test frequencies 35G / 2.0
4 Loss angle tangent GB/T12636-1990 test frequencies 35G / 0.002
6 Bending strength QJ2099-91 MPa 4.4
7 Compressive strength QJ2755-95 MPa 6
9 Linear expansion coefficient GJB332A-2004 (room temperature～300 DEG C) ×10-6/℃ 2.3
10 Thermal conductivity factor GB/T10295-88 (room temperature～300 DEG C) W/m.k 0.28
Other unspecified parts are prior art.Although above-described embodiment is made that to the present invention retouching in detail State, but it is only a part of embodiment of the invention, rather than whole embodiments, people can with according to the present embodiment without Other embodiment is obtained under the premise of creativeness, these embodiments belong to the scope of the present invention.

Claims (10)

1. a kind of preparation method of anti-heat-insulation integrative antenna house, it is characterised in that：Comprise the following steps：
1) knitted body weaving：Hollow quartz fiber is woven into into knitted body by braided parameter；
2) knitted body pretreatment：Knitted body is placed in water, water is boiled and then changes water and after water boils 2～5 times, leads to oxygen roasting, then Washing 2～5 times；
3) impregnate compound：By step 2) water boils and obtains knitted body and be placed in Ludox, and dipping is compound under vacuum state and vibration, It is set to produce big ups and downs, Ludox is filled to the gap of hollow quartz fiber knitted body, obtains the high silicon after impregnation process Oxygen fibrage body, then high silica fiber knitted body is dried；
4) repeat step 3) 2～9 times；Repeat preferably to fill knitted body space.
5) it is heat-treated：High silica fiber knitted body after will be compound is heat-treated in temperature for 600～900 DEG C, obtains ceramics Change knitted body；
6) machine adds：Knitted body is machined by product size, that is, obtains the stone of low-density, high intensity, low-dielectric loss English composite ceramics heat shield；
7) die assembly：Micron silica cenosphere casting mold is manufactured according to antenna house profile arrangement, will before cast Quartzy composite ceramic layer is assembled on request in the heat shield inner chamber that formpiston and former are collectively forming；
8) prepared by micron silica cenosphere slurry：Cenosphere, swelling agent are added in PVAC polyvinylalcohol solution and are mixed Uniformly, a micron silica cenosphere slurry is obtained；
9) pour into a mould：Micron silica cenosphere slurry is poured into heat shield inner chamber from the sprue of mould, and micron is aoxidized The full inner chamber of silicon cenosphere filled therewith；
10) it is vacuum dried：Will be filled with a micron mould for silica cenosphere slurry to enter in vacuum drying chamber, vacuum condition Under, risen to 100～200 DEG C of 1～5h of insulation by room temperature, lower the temperature with stove；
11) solidify：Remove mould, anti-heat-insulation integrative antenna house is placed in Muffle furnace, be warming up to 700～950 DEG C insulation 1～ 5h, along with the furnace cooling obtains anti-heat-insulation integrative antenna house.
2. the preparation method of anti-heat-insulation integrative antenna house according to claim 1, it is characterised in that：The step 1) in, Hollow quartz fiber line density is 190～200tex.
3. the preparation method of anti-heat-insulation integrative antenna house according to claim 1 or claim 2, it is characterised in that：The step 2) In, water boils temperature for 80～100 DEG C, and the time is 2～10h；Logical oxygen and temperature be 300～500 DEG C of condition roasting times be 1～ 6h。
4. the preparation method of anti-heat-insulation integrative antenna house according to claim 1 or claim 2, it is characterised in that：The step 3) In, the density of Ludox is 1.12～1.25g/cm3, vacuum be -0.06～-0.09MPa, dip time be 20min～ 180min。
5. the preparation method of anti-heat-insulation integrative antenna house according to claim 1 or claim 2, it is characterised in that：The step 8) In, in micron silica cenosphere slurry, it is 5%～15% that bulking agent levels are 5%～20%, PVA contents.
6. the preparation method of anti-heat-insulation integrative antenna house according to claim 5, it is characterised in that：The cenosphere Particle diameter is 10 μm～100 μm.
7. the preparation method of anti-heat-insulation integrative antenna house according to claim 1 or claim 2, it is characterised in that：The step 10) In, vacuum is -0.07～-0.09MPa, and the speed of intensification is 2～5 DEG C/min.
8. the preparation method of anti-heat-insulation integrative antenna house according to claim 1 or claim 2, it is characterised in that：The step 11) In, the speed of intensification is 2～5 DEG C/min.
9. a kind of mould for preparing anti-heat-insulation integrative antenna house described in claim 1, it is characterised in that：The mould phase interworking Former (1) and formpiston (2) are closed, the former (1) is cylinder, and former (1) middle setting has the hollow rounding conical surface (1.1), the rounding conical surface (1.1) top offers annular positioning groove (1.2), and the formpiston (2) is inverted cone, the sun Circular orientation block (2.1) is provided with mould (2) top exterior walls, between formpiston (2) top exterior walls and circular orientation block (2.1) Vertical filling tube (2.2) is provided with, formpiston (2) top of filling tube (2.2) side is provided with discharge ring (2.3).
10. mould according to claim 9, it is characterised in that：Formpiston (2) center top offers cylinder groove (2.4), horizontal overflow launder (2.5) on formpiston (2) inwall of cylinder groove (2.4) side, is provided with the discharge ring (2.3) Shank of bolt (2.31).
CN201611205315.5A 2016-12-23 2016-12-23 Preparation method of heat protection/insulation integral antenna cover and mold thereof Pending CN106630983A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107538599A (en) * 2017-08-14 2018-01-05 湖北三江航天江北机械工程有限公司 Based on Wrapping formed special-shaped negative cruvature composite ceramic wave-transparent antenna house cover body preparation method
CN107827474A (en) * 2017-11-16 2018-03-23 湖北三江航天江北机械工程有限公司 High-solid-content and low-viscosity slurry injection molding infiltration type ceramic-base wave-permeation composite quick molding method
CN107994338A (en) * 2017-11-20 2018-05-04 航天材料及工艺研究所 Mars exploration landing rover integral antenna protective cover and preparation method thereof
CN108894769A (en) * 2018-04-18 2018-11-27 中国石油天然气股份有限公司 Integrated differential-pressure-type gas-liquid two-phase flow well head monitoring device
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102604187A (en) * 2012-02-29 2012-07-25 深圳光启创新技术有限公司 Antenna housing substrate and preparation method thereof
CN106507737B (en) * 2009-09-22 2013-08-28 中国人民解放军国防科学技术大学 The pressure of latent composite antenna housing oozes forming method
CN103553696A (en) * 2013-10-31 2014-02-05 湖北三江航天江北机械工程有限公司 Manufacturing method of high-temperature-resistant ablation-resistant antenna housing body
CN106145988A (en) * 2016-06-29 2016-11-23 湖北三江航天江北机械工程有限公司 The preparation method of double-deck anti-heat insulation wave-penetrating composite material structural member

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106507737B (en) * 2009-09-22 2013-08-28 中国人民解放军国防科学技术大学 The pressure of latent composite antenna housing oozes forming method
CN102604187A (en) * 2012-02-29 2012-07-25 深圳光启创新技术有限公司 Antenna housing substrate and preparation method thereof
CN103553696A (en) * 2013-10-31 2014-02-05 湖北三江航天江北机械工程有限公司 Manufacturing method of high-temperature-resistant ablation-resistant antenna housing body
CN106145988A (en) * 2016-06-29 2016-11-23 湖北三江航天江北机械工程有限公司 The preparation method of double-deck anti-heat insulation wave-penetrating composite material structural member

Cited By (19)

* Cited by examiner, † Cited by third party
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CN107538599A (en) * 2017-08-14 2018-01-05 湖北三江航天江北机械工程有限公司 Based on Wrapping formed special-shaped negative cruvature composite ceramic wave-transparent antenna house cover body preparation method
CN107827474B (en) * 2017-11-16 2020-05-08 湖北三江航天江北机械工程有限公司 Rapid molding method for injection molding of high-solid-content low-viscosity slurry permeable ceramic matrix wave-transmitting composite material
CN107827474A (en) * 2017-11-16 2018-03-23 湖北三江航天江北机械工程有限公司 High-solid-content and low-viscosity slurry injection molding infiltration type ceramic-base wave-permeation composite quick molding method
CN107994338A (en) * 2017-11-20 2018-05-04 航天材料及工艺研究所 Mars exploration landing rover integral antenna protective cover and preparation method thereof
CN108894769A (en) * 2018-04-18 2018-11-27 中国石油天然气股份有限公司 Integrated differential-pressure-type gas-liquid two-phase flow well head monitoring device
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CN110272294A (en) * 2019-06-24 2019-09-24 湖北三江航天江北机械工程有限公司 Special-shaped quartz composite ceramic wave-transparent antenna windows quick molding method
CN110629443A (en) * 2019-10-21 2019-12-31 湖北三江航天江北机械工程有限公司 Shaping method of quartz glass fiber radome fabric
CN110746780A (en) * 2019-11-11 2020-02-04 山东非金属材料研究所 Light high-strength heat-insulation wave-transparent composite material and preparation method thereof
CN110746780B (en) * 2019-11-11 2022-01-28 山东非金属材料研究所 Light high-strength heat-insulation wave-transparent composite material and preparation method thereof
CN111285694A (en) * 2020-02-12 2020-06-16 西北工业大学 Preparation method of high-temperature wave-transparent silicon nitride radome
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