CN109400198A - A kind of carbon/carbon (pottery) composite material brake disc Preparation equipment and preparation method thereof based on quick sedimentation process - Google Patents

A kind of carbon/carbon (pottery) composite material brake disc Preparation equipment and preparation method thereof based on quick sedimentation process Download PDF

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Publication number
CN109400198A
CN109400198A CN201811527844.6A CN201811527844A CN109400198A CN 109400198 A CN109400198 A CN 109400198A CN 201811527844 A CN201811527844 A CN 201811527844A CN 109400198 A CN109400198 A CN 109400198A
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China
Prior art keywords
carbon
brake disc
air inlet
composite material
material brake
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CN201811527844.6A
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Chinese (zh)
Inventor
吴彪
邵忠
贾林涛
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Fujian Kang Carbon Composite Technology Co Ltd
Shanghai Kang Carbon Composite Mstar Technology Ltd
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Fujian Kang Carbon Composite Technology Co Ltd
Shanghai Kang Carbon Composite Mstar Technology Ltd
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Priority to CN201811527844.6A priority Critical patent/CN109400198A/en
Publication of CN109400198A publication Critical patent/CN109400198A/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
    • C04B35/71—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
    • C04B35/83—Carbon fibres in a carbon matrix
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02—Compositions of linings; Methods of manufacturing
    • F16D69/023—Composite materials containing carbon and carbon fibres or fibres made of carbonizable material
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/428—Silicon
    • 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
    • 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
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0034—Materials; Production methods therefor non-metallic
    • F16D2200/0039—Ceramics
    • F16D2200/0047—Ceramic composite, e.g. C/C composite infiltrated with Si or B, or ceramic matrix infiltrated with metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/006—Materials; Production methods therefor containing fibres or particles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0082—Production methods therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00—Manufacturing; Assembly
    • F16D2250/0038—Surface treatment

Abstract

The present invention discloses a kind of carbon/carbon (pottery) composite material brake disc Preparation equipment and preparation method thereof based on quick sedimentation process, chemical vapor infiltration (CVI) method is that carbon/carbon (pottery) composite material densifies a kind of common method, it is to prepare that high-performance is carbon-based and the technical way of ceramic matric composite, but its shortcoming is that manufacturing cycle is longer, preparation cost is higher, cannot achieve large-scale engineering application.Present invention is generally directed to the industry pain spots of its long preparation period, by the velocity field, gas concentration field and the thermo parameters method that control deposition process, while substantially shortening CVI process cycle, the effectively densification process of control precast body hole, to accomplish the density for effectively controlling carbon/carbon compound material.

Description

It is a kind of based on quick sedimentation process carbon/carbon (pottery) composite material brake disc preparation set It is standby and preparation method thereof
Technical field
The present invention discloses a kind of carbon/carbon (pottery) composite material brake disc Preparation equipment based on quick sedimentation process.
Background technique
Chemical vapor infiltration (CVI) method is that carbon/carbon (pottery) composite material densifies a kind of common method, this densification Method has the features such as small to fibre damage, performance designability is strong, and technique is flexible, and it is superior comprehensive can to assign composite material Performance is closed, is to prepare that high-performance is carbon-based and the technical way of ceramic matric composite.But its shortcoming is that manufacturing cycle compared with Long, preparation cost is higher, cannot achieve large-scale engineering application.
The densification of CVI technique is exactly carbon-source gas in reinforcement precast body surface and the mistake of internal cleavage deposition pyrolytic carbon Journey.It is substantially a mass transport process with chemical reaction.Its reaction mechanism mechanism of reaction substantially three phases: 1. carbon-source gas It is internally spread by precast body surface, and along with pyrolytic reaction；2. the pyrolytic carbon being cracked to form is in precast body or pyrolytic carbon table Face deposition, while generating gaseous by-product；3. gaseous by-product is discharged out of precast body.But the shortcomings that routine CVI technique, is main Be embodied in following two aspect: (1) densification of matrix needs to carry out multiple CVI technique, leads to production cycle length, preparation cost It is high；(2) nearby gas concentration is high for the pore entrance of precast body, and surface deposition velocity is greater than internal deposition velocity, and stomata is caused to seal It closes, gas can not flow to inside precast body, be easy to produce density gradient.
For aircraft, a large amount of kinetic energy is converted into thermal energy during brake.Its brake disc surface temperature is very To thousands of degrees Celsius can be sharply risen to from room temperature.Compared with traditional metal and powder metallurgy brake disc, carbon/carbon compound material Brake disc have many advantages, such as it is light-weight, it is wear-resistant, specific heat is high, high temperature is not adhered, thus obtained extensively in aircraft brake field Using.Carbon/pottery brake material is a kind of new brake material developed on the basis of carbon/carbon brake material, is stopped with carbon/carbon Vehicle material is compared, and carbon/pottery brake material has excellent antioxygenic property and the decaying of hygrometric state frictional behaviour small, wear-resistant to use the longevity Order the features such as long.Based on the above feature, carbon/pottery brake material is in bullet train, the brake such as truck and large engineering vehicle Field is with a wide range of applications.The pyrolytic carbon of different structure can be made in CVI technique by adjusting deposition process parameters, with This meets the composite material application field of different performance requirement.
Patent CN103982578A " a kind of preparation method of airplane carbon/carbon/carbon composite material brake disc friction pair " is used Propylene gas+nitrogen mixture source carries out the brake disc of deposition preparation as quiet disk, and natural gas+propane flammable gas mixing gas source is deposited The brake disc of preparation forms friction pair as Moving plate.By being vapor-deposited twice, sedimentation time at least exists for quiet disk and Moving plate 600h~900h.
Patent CN102128225A " a kind of manufacturing method of carbon pottery brake disc " is prepared using the process of CVI+RMI Carbon ceramic composite material brake disc.The patent is prepared for C/C green body using conventional CVI technique, and siliconising is then carried out on green body, And then carbon pottery brake material is made.During preparing C/C green body, vapor deposition times are up to 250~300h.
Summary of the invention
It is to solve the problems, such as above of the existing technology, it is a kind of based on quick sedimentation process object of the present invention is to propose Carbon/carbon (pottery) composite material brake disc Preparation equipment and preparation method thereof is passed through using the process that the Preparation equipment is realized Velocity field, gas concentration field and the thermo parameters method for controlling deposition process, while substantially shortening CVI process cycle, effectively The densification process of precast body hole is controlled, to accomplish the density for effectively controlling carbon/carbon compound material.
A kind of carbon/carbon (pottery) composite material brake disc Preparation equipment based on quick sedimentation process of the invention, including height Graphite or carbon/carbon compound material tooling in warm gaseous phase deposition stove furnace body and furnace body, furnace interior space are compound by graphite or carbon/carbon Material tooling is divided into gas preheating zone and gas crystallizing field, and according to the difference of Inlet Position, position can for the gas preheating zone Positioned at the top or lower part of furnace body, the gas preheating zone passes through graphite or carbon/carbon compound material pipeline and air inlet and described One or more air inlet columns that gas aggradation area is equipped with are connected；The outlet that the gas aggradation area top or bottom are equipped with Hole is connected to vacuum pump system.
As a preferred embodiment, several carbon fiber precast bodies are sequentially sleeved on the air inlet column, and every layer of carbon fiber is pre- The gas passage to form 2~20mm and be connected to the air inlet is supported for the small carbon block of 2~20mm with height between body processed, each A graphite or carbon/carbon compound material sleeve, the sleeve and the fiber are cased with outside the carbon fiber precast body on air inlet column Precast body outer rim forms the narrow annular channel that a width is 2~20mm, which is connected to the air inlet.
It is compound that the present invention also proposes that a kind of brake disc Preparation equipment using above-mentioned based on quick sedimentation process prepares carbon/carbon The method of material brake disk or carbon/ceramic composite material brake disc idiosome, comprising the following steps:
1) by the carbon fiber precast body graphitization processing；
2) by shove charge, several carbon fiber precast bodies after graphitization processing are sequentially sleeved on the air inlet column, every layer of institute It states and supports the gas to form 2~20mm and be connected to the air inlet with height between carbon fiber precast body for the small carbon block of 2~20mm Channel is cased with a graphite or carbon/carbon compound material sleeve, the sleeve outside the carbon fiber precast body on each air inlet column The narrow annular channel that a width is 2~20mm is formed with the brake disc outer rim, which is connected to the air inlet；
3) it purges；
4) cooling water recirculation system is opened；
5) it heats up；
6) fast deposition, by carbon-source gas, at the top of high temperature gaseous phase deposition stove or bottom is passed through, through described after gas preheating Air inlet column center enters, and flows out respectively from the reserved side opening of newel different height, and flow fast through in every layer of precast body surface, Furnace body is flowed upwards out by narrow slit between the sleeve wall surface and brake disc precast body；
7) graphitization processing；
8) green body after graphitization is designed according to brake disc final structure and carries out retrofit polishing by mechanical process, Carbon/carbon compound material brake disc is completed.
Due to using the technology described above, a kind of brake disc Preparation equipment preparation based on quick sedimentation process of the invention The method of carbon/carbon compound material brake disc or carbon/ceramic composite material brake disc idiosome, mainly for the industry of its long preparation period Pain spot is substantially shortening CVI process cycle by controlling velocity field, gas concentration field and the thermo parameters method of deposition process Meanwhile the densification process of effectively control precast body hole, to accomplish the density for effectively controlling carbon/carbon compound material.
Detailed description of the invention
Fig. 1 is carbon/carbon compound material brake disc preparation technology flow chart
Fig. 2 is carbon/ceramic composite material brake disc preparation technology flow chart
Fig. 3 is the vapor deposition flow field schematic diagram of one embodiment of the invention
Fig. 4 carbon fiber precast body pile schematic three dimensional views
Specific embodiment
Illustrate embodiments of the present invention below by way of particular specific embodiment, those skilled in the art can be by this theory The bright revealed content of book is understood other advantages and efficacy of the present invention easily.
A kind of carbon/carbon (pottery) composite material brake disc Preparation equipment based on quick sedimentation process of the invention, including height Graphite or carbon/carbon compound material tooling in warm gaseous phase deposition stove furnace body and furnace body, furnace interior space are compound by graphite or carbon/carbon Material tooling is divided into gas preheating zone and gas crystallizing field, and according to the difference of Inlet Position, position can be located at for gas preheating zone The top or lower part of furnace body, gas preheating zone are set by graphite or carbon/carbon compound material pipeline with air inlet and gas crystallizing field One or more air inlet columns having are connected；The venthole and vacuum pump system that gas aggradation area top or bottom are equipped with connect It is logical.
As shown in figure 3, for the present invention is based on carbon/carbon (pottery) composite material brake disc Preparation equipments of quick sedimentation process A wherein embodiment, including high temperature gaseous phase deposition stove furnace body, furnace body are divided into the gas preheating zone A equipped with heating tube of lower part and upper The air inlet C and gas that the bottom gas aggradation area B, air inlet column E and gas preheating zone A equipped with an air inlet column E in portion is equipped with The venthole D connection being equipped at the top of crystallizing field B.
When specific embodiment, several carbon fiber precast body F are sequentially sleeved on air inlet column E, between every layer of carbon fiber precast body F It is that the small carbon block of 2~20mm supports the gas passage to form 2~20mm and be connected to air inlet C with height, on each air inlet column F A graphite or carbon/carbon compound material sleeve are cased with outside carbon fiber precast body F, the sleeve and fiber preform outer rim form one Width is the narrow annular channel of 2~20mm, which is connected to air inlet C.It is illustrated in figure 4 carbon fiber precast body pile three Tie up schematic diagram.
Embodiment 1
A method of carbon/carbon compound material brake disc is prepared, is prepared as shown in Figure 1 for carbon/carbon compound material brake disc Process flow chart, comprising the following steps:
1. the near-net-shape precast body that volume fraction is 40% is placed in high temperature furnace by carbon fiber precast body graphitization processing 2200 DEG C of graphitization processing 2h；
2. several carbon fiber precast body F are sequentially sleeved on air inlet column E by shove charge, with height between every layer of carbon fiber precast body F Degree is that the small carbon block of 2mm supports to form the gas passage that 2mm is connected to air inlet C, the carbon fiber precast body on each air inlet column F A graphite or carbon/carbon compound material sleeve are cased with outside F, the sleeve and brake disc outer rim form the annular that a width is 2mm Narrow slit, the narrow annular channel are connected to air inlet C, and Fig. 4 is the 3-D view of single-column brake disc precast body pile；
3. purging, with high-purity Ar to purging in entire high temperature gaseous phase deposition stove, purge time continues 1h；
4. opening cooling water recirculation system；
5. heating, heating rate is controlled in 50 DEG C/h, starts to keep the temperature when temperature reaches 800 DEG C；
6. natural gas is passed through (as shown in Figure 3) by fast deposition from high temperature gaseous phase deposition stove bottom, through pre- after gas preheating Body newel processed enters, and flows out respectively from the reserved side opening of newel different height, and flow fast through in every layer of precast body surface, Furnace body is flowed upwards out by narrow slit between outer sleeve wall surface and brake disc precast body, gas discharge is controlled in 5m3/ h, pressure control System is in 3kPa, and between 800 DEG C, sedimentation time is controlled in 50h crystallizing field central temperature；
7. graphitization processing will be put into high temperature heat treatment furnace through step 7 gained carbon/carbon compound material brake disc green body 2h is handled under 2200 DEG C of environment；
8. the green body after graphitization is designed according to brake disc final structure and carries out retrofit polishing by mechanical process, Carbon/carbon compound material brake disc is completed.Carbon/carbon compound material brake disc density is 1.75g/cm3, coefficient of friction 0.36 it Between.
Embodiment 2
A method of carbon/carbon compound material brake disc is prepared, is prepared as shown in Figure 1 for carbon/carbon compound material brake disc Process flow chart, comprising the following steps:
1. the near-net-shape precast body that volume fraction is 60% is placed in high temperature furnace by carbon fiber precast body graphitization processing 2600 DEG C of graphitization processing 5h；
2. several carbon fiber precast body F are sequentially sleeved on air inlet column E by shove charge, with height between every layer of carbon fiber precast body F Degree is that the small carbon block of 20mm supports to form the gas passage that 20mm is connected to air inlet C, the prefabricated carbon fiber on each air inlet column F A graphite/carbon composite material sleeve is cased with outside body F, it is the annular narrow of 20mm which, which forms a width with brake disc outer rim, Seam, the narrow annular channel are connected to air inlet C；
3. purging, uses high-purity N2To purging in entire high temperature gaseous phase deposition stove, purge time continues 5h；
4. opening cooling water recirculation system；
5. heating, heating rate is controlled in 150 DEG C/h, starts to keep the temperature when temperature reaches 1100 DEG C；
6. methane is passed through by fast deposition from high temperature gaseous phase deposition stove bottom, after gas preheating through precast body air inlet column into Enter, is flowed out respectively from the reserved side opening of air inlet column different height, and flowed fast through in every layer of precast body surface, by outer sleeve wall Narrow slit flows upwards out furnace body between face and brake disc precast body, and methane flow is controlled in 50m3/ h, pressure control are sunk in 30kPa Between 1100 DEG C, sedimentation time is controlled in 250h product district center temperature；
7. graphitization processing will be put into high temperature heat treatment furnace through step 7 gained carbon/carbon compound material brake disc green body 5h is handled under 2600 DEG C of environment；
8. the green body after graphitization is designed according to brake disc final structure and carries out retrofit polishing by mechanical process, Carbon/carbon compound material brake disc idiosome is completed.After tested, carbon/carbon compound material brake disc density is 1.75g/cm3, friction system Number is 0.35.
Embodiment 3
A method of carbon/ceramic composite material brake disc green body is prepared, carbon/ceramic composite material brake disc is illustrated in figure 2 Preparation technology flow chart, comprising the following steps:
1. the near-net-shape precast body carbon felt that volume fraction is 50% is placed in high temperature furnace by carbon fiber precast body graphitization processing In in 2300 DEG C of graphitization processing 3h；
2. several carbon fiber precast body F are sequentially sleeved on air inlet column E by shove charge, with height between every layer of carbon fiber precast body F Degree is that the small carbon block of 10mm supports to form the gas passage that 10mm is connected to air inlet C, the prefabricated carbon fiber on each air inlet column F A carbon/carbon compound material sleeve is cased with outside body F, it is the annular narrow of 10mm which, which forms a width with brake disc outer rim, Seam, the narrow annular channel are connected to air inlet C；
3. purging, uses high-purity N2To purging in entire high temperature gaseous phase deposition stove, purge time continues 5h；
4. opening cooling water recirculation system；
5. heating, heating rate is controlled in 100 DEG C/h, starts to keep the temperature when temperature reaches 1050 DEG C；
6. methane is passed through by fast deposition from high temperature gaseous phase deposition stove bottom, after gas preheating through precast body air inlet column into Enter, is flowed out respectively from the reserved side opening of air inlet column different height, and flowed fast through in every layer of precast body surface, by outer sleeve wall Narrow slit flows upwards out furnace body between face and brake disc precast body, and methane flow is controlled in 30m3/ h, pressure control are sunk in 20kPa At 1050 DEG C, sedimentation time is controlled in 100h product district center temperature；
7. graphitization processing will be put into high temperature heat treatment furnace through step 6 gained carbon/carbon compound material brake disc green body 3h is handled under 2300 DEG C of environment；
8. melting siliconising processing, above-mentioned green body is placed in vacuumize under 1600 DEG C of hot environments in silicon powder and melts infiltration.
9. mechanical process, green body after siliconising will be melted is designed according to brake disc final structure and carry out retrofit and beat Mill, carbon/ceramic composite material brake disc are completed.After tested, carbon/ceramic composite material brake disc density is 1.85g/cm3, coefficient of friction It is 0.37.
Embodiment 4
A method of carbon/ceramic composite material brake disc green body is prepared, is as shown in Figure 1 carbon/ceramic composite material brake disc Preparation technology flow chart, comprising the following steps:
1. the near-net-shape precast body carbon felt that volume fraction is 40% is placed in high temperature furnace by carbon fiber precast body graphitization processing In in 2200 DEG C of graphitization processing 2h；
2. several carbon fiber precast body F are sequentially sleeved on air inlet column E by shove charge, with height between every layer of carbon fiber precast body F Degree is that the small carbon block of 12mm supports to form the gas passage that 12mm is connected to air inlet C, the prefabricated carbon fiber on each air inlet column F A graphite/carbon composite material sleeve is cased with outside body F, it is the annular narrow of 12mm which, which forms a width with brake disc outer rim, Seam, the narrow annular channel are connected to air inlet C；
3. purging, with high-purity Ar to purging in entire high temperature gaseous phase deposition stove, purge time continues 2h；
4. opening cooling water recirculation system；
5. heating, heating rate is controlled in 80 DEG C/h, starts to keep the temperature when temperature reaches 1100 DEG C；
6. natural gas is passed through by fast deposition from high temperature gaseous phase deposition stove bottom, through precast body air inlet column after gas preheating Into flowing out, and flow fast through in every layer of precast body surface from the reserved side opening of air inlet column different height respectively, by outer sleeve Narrow slit flows upwards out furnace body between wall surface and brake disc precast body, and ethene flow is controlled in 40m3/ h, pressure are controlled in 10kPa, At 1100 DEG C, sedimentation time is controlled in 80h crystallizing field central temperature；
7. graphitization processing will be put into high temperature heat treatment furnace through step 6 gained carbon/carbon compound material brake disc green body 3h is handled under 2400 DEG C of environment；
8. melting siliconising processing, above-mentioned green body is placed in vacuumize under 1600 DEG C of hot environments in silicon powder and melts infiltration；
9. mechanical process, green body after siliconising will be melted is designed according to brake disc final structure and carry out retrofit and beat Mill, carbon/ceramic composite material brake disc idiosome are completed.After tested, carbon/ceramic composite material brake disc green density is 1.82g/cm3, Coefficient of friction is 0.38.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (10)

1. a kind of carbon/carbon (pottery) composite material brake disc Preparation equipment based on quick sedimentation process, which is characterized in that including height Graphite or carbon/carbon compound material tooling in warm gaseous phase deposition stove furnace body and furnace body, furnace interior space are compound by graphite or carbon/carbon Material tooling is divided into gas preheating zone and gas crystallizing field, and according to the difference of Inlet Position, position can for the gas preheating zone Positioned at the top or lower part of furnace body, the gas preheating zone passes through graphite or carbon/carbon compound material pipeline and air inlet and described One or more air inlet columns that gas aggradation area is equipped with are connected；The outlet that the gas aggradation area top or bottom are equipped with Hole is connected to vacuum pump system.
2. carbon/carbon (pottery) composite material brake disc Preparation equipment according to claim 1 based on quick sedimentation process, It is characterized in that, several carbon fiber precast bodies are sequentially sleeved on the air inlet column, with height between every layer of carbon fiber precast body Support the gas passage to form 2~20mm and be connected to the air inlet for the small carbon block of 2~20mm, on each air inlet column described in A graphite or carbon/carbon compound material sleeve are cased with outside fiber preform, the sleeve and the fiber preform outer rim form one A width is the narrow annular channel of 2~20mm, which is connected to the air inlet.
3. a kind of brake disc Preparation equipment according to claim 1 based on quick sedimentation process prepares carbon/carbon composite wood Expect the method for brake disc or carbon/ceramic composite material brake disc idiosome, which comprises the following steps:
1) by carbon fiber precast body graphitization processing；
2) several carbon fiber brake disc precast bodies after graphitization processing are sequentially sleeved on the air inlet column, each by shove charge A graphite or carbon/carbon compound material sleeve are cased with outside the carbon fiber precast body on air inlet column；
3) it purges；
4) cooling water recirculation system is opened；
5) it heats up；
6) carbon-source gas is passed through, through the air inlet after gas preheating by fast deposition from high temperature gaseous phase deposition stove top or bottom Column center enters, and flows out respectively from the reserved side opening of air inlet column different height, and flow fast through in every layer of precast body surface, by Narrow slit flows upwards out furnace body between the sleeve wall surface and brake disc precast body；
7) graphitization processing；
8) green body after graphitization is designed according to brake disc final structure and carries out retrofit polishing, carbon/carbon by mechanical process Composite material brake disc or carbon/ceramic composite material brake disc idiosome are completed.
4. the side according to claim 1 for preparing carbon/carbon compound material brake disc or carbon/ceramic composite material brake disc idiosome Method, which is characterized in that in the step 1), by the carbon fiber precast body graphitization processing be in high temperature furnace 2200 DEG C~ 2600 DEG C of 2~5h of graphitization processing.
5. the side according to claim 1 for preparing carbon/carbon compound material brake disc or carbon/ceramic composite material brake disc idiosome Method, which is characterized in that in the step 2), several carbon fiber precast bodies are sequentially sleeved on the air inlet column, every layer of carbon fiber The gas passage to form 2~20mm and be connected to the air inlet is supported for the small carbon block of 2~20mm with height between dimension precast body, A graphite or carbon/carbon compound material sleeve, the sleeve and the brake are cased with outside the fiber preform on each air inlet column Hull outer rim forms the narrow annular channel that a width is 2~20mm, which is connected to the air inlet.
6. the side according to claim 1 for preparing carbon/carbon compound material brake disc or carbon/ceramic composite material brake disc idiosome Method, which is characterized in that in the step 3), with high-purity Ar or high-purity N2To being purged in entire high temperature gaseous phase deposition stove, blow Flyback time continues 1~5h.
7. the side according to claim 1 for preparing carbon/carbon compound material brake disc or carbon/ceramic composite material brake disc idiosome Method, which is characterized in that in the step 5), heating rate control in 50 DEG C/h~150 DEG C/h, when temperature reach 800 DEG C~ Start to keep the temperature at 1100 DEG C.
8. the side according to claim 1 for preparing carbon/carbon compound material brake disc or carbon/ceramic composite material brake disc idiosome Method, which is characterized in that in the step 6), carbon-source gas is natural gas, methane, ethane, ethylene, propane or propylene.
9. preparing the side of carbon/carbon compound material brake disc or carbon/ceramic composite material brake disc idiosome according to claim 7 Method, which is characterized in that in the step 6), carbon-source gas flow control is in 5m3/ h~50m3/ h, pressure control 3kPa~ 50kPa, between 800 DEG C~1100 DEG C, sedimentation time is controlled in 50~250h crystallizing field central temperature.
10. preparing the side of carbon/carbon compound material brake disc or carbon/ceramic composite material brake disc idiosome according to claim 1 Method, which is characterized in that in the step 7), the graphitization processing is the carbon/carbon compound material by the step 6) processing Green body is put into high temperature heat treatment furnace 2~5h of processing under 2200~2600 DEG C of environment.
CN201811527844.6A 2018-12-13 2018-12-13 A kind of carbon/carbon (pottery) composite material brake disc Preparation equipment and preparation method thereof based on quick sedimentation process Pending CN109400198A (en)

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CN111519162A (en) * 2020-04-22 2020-08-11 西安航空制动科技有限公司 Material column pressure adjusting device of chemical vapor deposition furnace
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CN112830807B (en) * 2021-03-19 2022-05-20 中南大学 Vapor deposition device and preparation method of carbon/carbon composite material
CN114057486A (en) * 2021-11-17 2022-02-18 上海康碳复合材料科技有限公司 Method for preparing carbon/carbon split-type structure crucible support at low cost
CN115504801A (en) * 2022-09-01 2022-12-23 湖南博云新材料股份有限公司 Preparation method of carbon/carbon composite material brake disc
CN115536419B (en) * 2022-10-14 2023-09-29 湖南博云新材料股份有限公司 Aviation carbon ceramic brake material and preparation method thereof
CN115536419A (en) * 2022-10-14 2022-12-30 湖南博云新材料股份有限公司 Aviation carbon-ceramic brake material and preparation method thereof
CN115819101A (en) * 2022-11-25 2023-03-21 湖南博云新材料股份有限公司 Method for quickly preparing carbon/carbon composite material brake disc
CN115819101B (en) * 2022-11-25 2023-07-21 湖南博云新材料股份有限公司 Method for rapidly preparing carbon/carbon composite brake disc
CN116675230A (en) * 2023-05-23 2023-09-01 河南硅烷科技发展股份有限公司 Electronic grade polycrystalline silicon preparation system for zone melting based on wettability regulation and control method
CN116675230B (en) * 2023-05-23 2024-01-12 河南硅烷科技发展股份有限公司 Electronic grade polycrystalline silicon preparation system for zone melting based on wettability regulation and control method

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