CN110483086A - A kind of preparation method of carbon pottery brake disc - Google Patents
A kind of preparation method of carbon pottery brake disc Download PDFInfo
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- CN110483086A CN110483086A CN201910803674.8A CN201910803674A CN110483086A CN 110483086 A CN110483086 A CN 110483086A CN 201910803674 A CN201910803674 A CN 201910803674A CN 110483086 A CN110483086 A CN 110483086A
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- brake disc
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- pottery brake
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 38
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000002131 composite material Substances 0.000 claims abstract description 30
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 29
- 239000004917 carbon fiber Substances 0.000 claims abstract description 29
- 230000008595 infiltration Effects 0.000 claims abstract description 19
- 238000001764 infiltration Methods 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000005229 chemical vapour deposition Methods 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 239000007767 bonding agent Substances 0.000 claims description 22
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 20
- 239000011863 silicon-based powder Substances 0.000 claims description 19
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 14
- 239000005977 Ethylene Substances 0.000 claims description 12
- 238000000151 deposition Methods 0.000 claims description 12
- 238000002791 soaking Methods 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 9
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 8
- 239000003345 natural gas Substances 0.000 claims description 8
- 239000005011 phenolic resin Substances 0.000 claims description 8
- 229920001568 phenolic resin Polymers 0.000 claims description 8
- 230000008021 deposition Effects 0.000 claims description 7
- 238000007711 solidification Methods 0.000 claims description 7
- 230000008023 solidification Effects 0.000 claims description 7
- 238000000498 ball milling Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- QBUKAFSEUHGMMX-MTJSOVHGSA-N (5z)-5-[[3-(1-hydroxyethyl)thiophen-2-yl]methylidene]-10-methoxy-2,2,4-trimethyl-1h-chromeno[3,4-f]quinolin-9-ol Chemical group C1=CC=2NC(C)(C)C=C(C)C=2C2=C1C=1C(OC)=C(O)C=CC=1O\C2=C/C=1SC=CC=1C(C)O QBUKAFSEUHGMMX-MTJSOVHGSA-N 0.000 claims description 5
- 239000001667 (E)-4-furan-2-ylbut-3-en-2-one Substances 0.000 claims description 5
- GBKGJMYPQZODMI-SNAWJCMRSA-N (e)-4-(furan-2-yl)but-3-en-2-one Chemical compound CC(=O)\C=C\C1=CC=CO1 GBKGJMYPQZODMI-SNAWJCMRSA-N 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 230000001680 brushing effect Effects 0.000 claims description 5
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- -1 phenolic aldehyde Chemical class 0.000 claims 1
- 238000007740 vapor deposition Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- XINQFOMFQFGGCQ-UHFFFAOYSA-L (2-dodecoxy-2-oxoethyl)-[6-[(2-dodecoxy-2-oxoethyl)-dimethylazaniumyl]hexyl]-dimethylazanium;dichloride Chemical compound [Cl-].[Cl-].CCCCCCCCCCCCOC(=O)C[N+](C)(C)CCCCCC[N+](C)(C)CC(=O)OCCCCCCCCCCCC XINQFOMFQFGGCQ-UHFFFAOYSA-L 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 7
- 239000012790 adhesive layer Substances 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000003801 milling Methods 0.000 description 5
- 239000002783 friction material Substances 0.000 description 3
- 210000001161 mammalian embryo Anatomy 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000003026 anti-oxygenic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000011226 reinforced ceramic Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000011856 silicon-based particle Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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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
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
- C04B35/573—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide obtained by reaction sintering or recrystallisation
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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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- 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—Composition of linings ; Methods of manufacturing
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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
- 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
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3826—Silicon carbides
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- 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
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- 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
- C04B2235/5208—Fibers
- C04B2235/5216—Inorganic
- C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
- C04B2235/5248—Carbon, e.g. graphite
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- 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
- C04B2235/5208—Fibers
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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- C04B2235/616—Liquid infiltration of green bodies or pre-forms
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- Mechanical Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention relates to a kind of preparation method of carbon pottery brake disc, detailed process is as follows: preparation carbon fiber precast body；Chemical vapor deposition is carried out to precast body and prepares C/C composite material；By C/C composite processing at unit module；Bonding preparation C/C brake disc；Reaction melt body infiltration prepares carbon/pottery brake disc, and stock utilization can be improved using method of the invention, avoids processing carbon/pottery brake disc waste of material and consume, shortens processing duration, so that carbon/pottery brake disc production cost be greatly reduced.
Description
Technical field
The present invention relates to a kind of preparation methods of carbon fiber-reinforced ceramic base (abbreviation carbon pottery) brake disc, and in particular to preparation
Carbon fiber-reinforced SiC matrix brake disc belongs to carbon ceramic composite material brake field.
Background technique
Carbon fiber-reinforced SiC base (Cf/ SiC) friction material have density is low, wear-resistant, coefficient of friction is high, without heat fading
The advantages that.For conventional metals or semimetal friction material, Cf/ SiC has low density, high temperature resistant, wears small, friction
The advantages that performance is stable, antioxygenic property is excellent, frictional behaviour is insensitive to external environment (greasy dirt, moisture, seawater etc.).Mesh
Before, Cf/ SiC has become a focus on research direction of lightweight, high brake efficiency, full ambient engine military service friction material, is recognized
For latest generation brake material.
Patent No. CN109095929A discloses a kind of carbon pottery brake disc preparation method, is prepared by vapour deposition process low
Then density C/C composite material prepares carbon/pottery brake disc by precursor infiltration and pyrolysis method and melting siliconising method, finally by carbon
Ceramic composite material machine-shaping is to get carbon pottery brake disc.However carbon pottery brake material hardness is high, leads to processing time consuming, cutter damage
Consumption is serious, and processing cost is high.In addition, post-processing, which belongs to, subtracts material manufacture, stock utilization is caused to reduce, brake disc cost increases
Add.Based on this, the present invention proposes a kind of preparation method of carbon terrine, and stock utilization can be improved, and avoids processing carbon pottery brake
Disk, so that the production cost of carbon pottery brake disc be greatly reduced.
Summary of the invention
The present invention relates to a kind of preparation method of carbon pottery brake disc, detailed process is as follows: (1) preparing carbon fiber precast body；
(2) chemical vapor deposition is carried out to precast body and prepares C/C composite material；(3) by C/C composite processing at unit module；(4)
Bonding preparation C/C brake disc；(5) reaction melt body infiltration prepares carbon/pottery brake disc.Stock utilization can be improved in the present invention, avoids
Carbon/pottery brake disc is processed, so that carbon/pottery brake disc production cost be greatly reduced.
Technical scheme is as follows:
A kind of preparation method of carbon pottery brake disc, comprises the following steps that
(1) carbon fiber precast body is prepared；It is prepared with carbon fiber bundle unidirectionally without Wei Bu and web of staple fibers tire, then presses one layer of nothing
Wei Bu, one layer of net tire, one layer carry out circulation laying without dimension cloth, it is final to carry out needle thorn, it is prefabricated to prepare D refraction statics structural carbon fiber
Body；
(2) chemical vapor deposition prepares C/C composite material；Carbon fiber precast body is put into CVI furnace, isothermal and isobaric is carried out
Chemical vapor deposition, deposition gases are natural gas and ethylene, and C/C composite material can be obtained；
(3) according to demand, by C/C composite processing at sector element module, circular ring shape unit module；
(4) after sector element module upper and lower surface brushing bonding agent, by sector element module and circular ring shape unit module
It is bonded, prepares C/C brake disc；Bonding agent has been mainly styling, i.e., brake disc unit module is fixed, convenient
Transport and shove charge；
(5) silicon powder is placed in BN crucible, bonding C/C brake disc is placed on silicon powder, crucible is put into siliconising furnace
Middle progress melt body infiltration, reaction melt body infiltration prepare carbon/pottery brake disc.
, according to the invention it is preferred to, carbon fiber precast body described in step (1) is paved into a thickness of 14-16 layers/cm, carbon
The density of fiber preform is 0.4-0.6g/cm3, needling density is 25-30 needle/cm3。
, according to the invention it is preferred to, depositing temperature described in step (2) is 950 DEG C -1100 DEG C, natural gas purity
99.9%, Ethylene purity 99.5%, wherein gas discharge is 40-80SLM, ethene flow 40-80SLM, sedimentation time
300-400h, it is 1.0-1.4g/cm that density, which can be obtained,3C/C composite material.
, according to the invention it is preferred to, sector element module number described in step (3) is 6-8, circular ring shape unit mould
Number of blocks is 2, and sector element module is arranged between two circular ring shape unit modules.
, according to the invention it is preferred to, in step (4), baking is put into after sector element module is Nian Jie with circular ring shape unit module
Case is solidified, and solidification temperature is 200-250 DEG C, soaking time 1-2h.
, according to the invention it is preferred to, bonding agent described in step (4) is selected from following one:
A. the bonding agent is made by the raw material of following mass parts: 30 parts of phenolic resin, 40 parts of dehydrated alcohol, and C powder 30
Part；
B. the bonding agent is made by the raw material of following mass parts: 40 parts of phenolic resin, 40 parts of dehydrated alcohol, and SiC powder
20 parts；
C. the bonding agent is made by the raw material of following mass parts: 30 parts of furfural acetone resin, 40 parts of dehydrated alcohol, and SiC powder
20 parts；
Bonding agent raw material is put into ball grinder, > 2h ball milling mixing is carried out.
According to the present invention, it is further preferred that phenolic resin used is 2123 types in step (4), C powder purity > 99%,
Granularity is 1um；SiC granularity used is 0.5um, purity > 98%；Furfural acetone resin used is the production of Shandong Yong Chuan Co., Ltd
KT-1 type.
, according to the invention it is preferred to, in step (5), after crucible is put into siliconising furnace, 500pa is evacuated to hereinafter, heating
To 1500 DEG C of progress melt body infiltrations, soaking time 15-30min.It reacts in melt body process of osmosis, liquid silicon carries out two materials
Bonding.
, according to the invention it is preferred to, silicon particle size described in step (5) is 200 mesh, purity >=99.9%.
, according to the invention it is preferred to, silicon powder additive amount described in step (5) is the 1-2.5 for being bonded C/C brake disc quality
Times.
Beneficial effects of the present invention are as follows:
After the present invention is by being processed into unit module for C/C, C/C brake disc is prepared in a manner of bonding and carries out reaction and is melted
Each happy porcelain of C/C unit module is turned to SiC and has the function that bonding by body infiltration while Si reacts with C and generates SiC.
The present invention compared to processing entirety C/C embryo material, can be improved C/C material utilization rate, simplify processing flow, shortening the process-cycle,
Reduce the production cost of carbon pottery brake disc.
Detailed description of the invention:
Fig. 1 is the C/C brake disc schematic diagram after bonding；
Fig. 2 is brake disc siliconising schematic diagram；
Fig. 3 is low power carbon pottery brake disc section SEM；
Fig. 4 is high power carbon pottery brake disc section SEM；
Fig. 5 is the method for the present invention flow diagram；
Fig. 6 is that comparative example and embodiment 3 prepare carbon/pottery brake disc shear strength comparison diagram.
Wherein: 1, bonding agent, 2, unit module, 3, BN crucible, 4, C/C brake disc, 5, silicon powder.
Specific embodiment
The present invention will be further described by way of example and in conjunction with the accompanying drawings, but not limited to this.
Embodiment 1
A kind of preparation method of carbon pottery brake disc, comprises the following steps that
(1) carbon fiber precast body is prepared
With the beautiful T700-12K carbon fiber bundle preparation in east unidirectionally without Wei Bu and web of staple fibers tire, then by 0 ° without dimension cloth, short fibre
Dimension net tire, 90 ° carry out circulation laying to 1cm laggard hand-manipulating of needle thorn without dimension cloth, then repeat the above steps, prepare having a size of 40cm*
The carbon fiber precast body of 40cm*3cm, and guarantee prefabricated carbon fiber volume density 0.45g/cm3, 14-16 layers/cm.
(2) chemical vapor deposition prepares C/C composite material
Carbon fiber precast body is put into CVI furnace, isothermal and isobaric chemical vapor deposition is carried out, depositing temperature is 1100 DEG C,
Deposition gases are natural gas and ethylene, and wherein gas discharge is 80SLM, and ethylene gas 40SLM, sedimentation time 340h can be obtained
It is 1.40g/cm to density3C/C composite material.
(3) by C/C composite processing at unit module, unit module includes 6 sector element modules, 2 circular ring shapes
Unit module；
(4) unit module bonding preparation C/C brake disc；
By 30 parts of phenolic resin, 40 parts of dehydrated alcohol, 30 parts of C powder are put into ball grinder, carry out > 2h ball milling mixing, are guaranteed
Bonding agent is uniformly mixed；
After the bonding agent of sector element module upper and lower surface brushing 0.5-1.0mm thickness, by sector element module and circle
Annular element module is bonded, assembly prepares C/C brake disc, is then placed in baking oven and is solidified, and solidification temperature is 250 DEG C,
Soaking time is 2h；
(5) reaction melt body infiltration prepares carbon/pottery brake disc
The C/C brake disc of above-mentioned bonding is placed on silicon powder after placing silicon powder in BN crucible, silicon powder amount used is C/C brake
2 times of hull weight, are then placed in siliconising furnace, are evacuated to 500pa hereinafter, being warming up to 1500 DEG C of progress melt body infiltrations, keep the temperature
Time is 30min.
Embodiment 2
A kind of preparation method of carbon pottery brake disc, comprises the following steps that
(1) carbon fiber precast body is prepared
With the beautiful T700-12K carbon fiber bundle preparation in east unidirectionally without Wei Bu and web of staple fibers tire, then by 0 ° without dimension cloth, short fibre
Dimension net tire, 90 ° carry out circulation laying to 1cm laggard hand-manipulating of needle thorn without dimension cloth, then repeat the above steps, prepare having a size of 40cm*
The carbon fiber precast body of 40cm*3cm, and guarantee prefabricated carbon fiber volume density 0.45g/cm3, 14-16 layers/cm.
(2) chemical vapor deposition prepares C/C composite material
Carbon fiber precast body is put into CVI furnace, chemical vapor deposition is carried out, depositing temperature is 1100 DEG C, deposition gases
For natural gas and ethylene, wherein gas discharge is 80SLM, ethylene gas 40SLM, sedimentation time 340h, and density, which can be obtained, is
1.40g/cm3C/C composite material.
(3) by C/C composite processing at 8 sector element modules, 2 circular ring shape unit modules
(4) unit module bonding preparation C/C brake disc；
By 40 parts of phenolic resin, 40 parts of dehydrated alcohol, 20 parts of SiC part is put into ball grinder, carries out > 2h ball milling mixing, is protected
Bonding agent is demonstrate,proved to be uniformly mixed；
After the bonding agent of sector element module upper and lower surface brushing 0.5-1.0mm thickness, by sector element module and circle
Annular element module is bonded, assembly prepares C/C brake disc, is then placed in baking oven and is solidified, and solidification temperature is 250 DEG C,
Soaking time is 2h；
(5) reaction melt body infiltration prepares carbon/pottery brake disc
The C/C brake disc of above-mentioned bonding is placed on silicon powder after placing silicon powder in BN crucible, silicon powder amount used is C/C brake
2 times of hull weight, are then placed in siliconising furnace, are evacuated to 500pa hereinafter, being warming up to 1500 DEG C of progress melt body infiltrations, keep the temperature
Time is 30min；
Embodiment 3
A kind of preparation method of carbon pottery brake disc, comprises the following steps that
(1) carbon fiber precast body is prepared
With the beautiful T700-12K carbon fiber bundle preparation in east unidirectionally without Wei Bu and web of staple fibers tire, then by 0 ° without dimension cloth, short fibre
Dimension net tire, 90 ° carry out circulation laying to 1cm laggard hand-manipulating of needle thorn without dimension cloth, then repeat the above steps, prepare having a size of 40cm*
The carbon fiber precast body of 40cm*3cm, and guarantee prefabricated carbon fiber volume density 0.45g/cm3, 14-16 layers/cm.
(2) chemical vapor deposition prepares C/C composite material
Carbon fiber precast body is put into CVI furnace, chemical vapor deposition is carried out, depositing temperature is 1100 DEG C, deposition gases
For natural gas and ethylene, wherein gas discharge is 80SLM, ethylene gas 40SLM, sedimentation time 340h, and density, which can be obtained, is
1.4g/cm3C/C composite material.
(3) by C/C composite processing at 6 sector element modules, 2 circular ring shape unit modules
(4) unit module bonding preparation C/C brake disc；
By 40 parts of phenolic resin, 40 parts of dehydrated alcohol, 20 parts of SiC part is put into ball grinder, carries out > 2h ball milling mixing, is protected
Bonding agent is demonstrate,proved to be uniformly mixed；
After the bonding agent of sector element module upper and lower surface brushing 0.5-1.0mm thickness, by sector element module and circle
Annular element module is bonded, assembly prepares C/C brake disc, is then placed in baking oven and is solidified, and solidification temperature is 250 DEG C,
Soaking time is 2h；
(5) reaction melt body infiltration prepares carbon/pottery brake disc
The C/C brake disc of above-mentioned bonding is placed on silicon powder after placing silicon powder in BN crucible, silicon powder amount used is C/C brake
2 times of hull weight, are then placed in siliconising furnace, are evacuated to 500pa hereinafter, being warming up to 1500 DEG C of progress melt body infiltrations, keep the temperature
Time is 30min.
The brake disc of method preparation through this embodiment, section SEM microscope view is as shown in Figure 3, Figure 4, can by Fig. 3
Know, sector element module (left side) is formd in reacting melt body process of osmosis with circular ring shape unit module (right side) by bonding agent
Adhesive layer, adhesive layer even compact, pore-free and macroscopic cracking, adhesive layer, can by partial enlargement Fig. 4 by SiC and Si phase composition
Know, adhesive layer is reacted with unit module generates SiC transition zone, avoids the generation of macroscopic cracking, and it is excellent to show that adhesive layer has
Different mechanical property.
Embodiment 4
A kind of preparation method of carbon pottery brake disc, step is as described in Example 1, the difference is that in step (4), bonding
Agent is made of the raw material of following mass parts: 30 parts of furfural acetone resin, 40 parts of dehydrated alcohol, 20 parts of SiC powder；Bonding agent raw material is put into
In ball grinder, > 2h ball milling mixing is carried out.
Embodiment 5
A kind of preparation method of carbon pottery brake disc, step is as described in Example 1, the difference is that in step (4), it is fan-shaped
It is put into baking oven after unit module is Nian Jie with circular ring shape unit module to be solidified, solidification temperature is 200 DEG C, soaking time 1h.
Embodiment 6
A kind of preparation method of carbon pottery brake disc, step is as described in Example 1, the difference is that in step (5), silicon powder
Additive amount is 1 times for being bonded C/C brake disc quality；After crucible is put into siliconising furnace, 500pa is evacuated to hereinafter, being warming up to
1500 DEG C of progress melt body infiltrations, soaking time 30min.
Embodiment 7
A kind of preparation method of carbon pottery brake disc, step is as described in Example 1, the difference is that in step (5), silicon powder
Additive amount is 2.5 times for being bonded C/C brake disc quality；After crucible is put into siliconising furnace, 500pa is evacuated to hereinafter, being warming up to
1500 DEG C of progress melt body infiltrations, soaking time 15min.
Embodiment 8
A kind of preparation method of carbon pottery brake disc, step is as described in Example 1, the difference is that described in step (2)
Depositing temperature is 950 DEG C, natural gas purity 99.9%, Ethylene purity 99.5%, and wherein gas discharge is 40SLM, ethylene stream
Amount is 80SLM, and C/C composite material can be obtained in sedimentation time 300h.
Embodiment 9
A kind of preparation method of carbon pottery brake disc, step is as described in Example 8, the difference is that in step (2) when deposition
Between 400h, C/C composite material can be obtained.
Embodiment 10
A kind of preparation method of carbon pottery brake disc, step is as described in Example 1, the difference is that fan-shaped single in step (4)
It is put into baking oven after element module is Nian Jie with circular ring shape unit module to be solidified, solidification temperature is 200 DEG C, soaking time 1h.
Comparative example 1
A kind of preparation of routine carbon pottery brake disc, comprises the following steps that preparation carbon fiber precast body --- chemical vapor deposition
Product prepares C/C composite material --- reaction melt body infiltration prepares carbon/ceramic composite material --- and presses the carbon/ceramic composite material of preparation
Drawing is processed into carbon/pottery brake disc.When processing carbon/ceramic composite material, using diameter 8mm diamond milling cutter carry out processing carbon/
Pottery, the milling amount of whole process are 3423cm3, and cutter is lost 6, process time-consuming 350min, brake disc volume and carbon/Tao Fuhe
The ratio between material embryo material volume is 0.331, i.e., stock utilization is 33.1%.
When preparing carbon pottery using the method and step of embodiment 3, processing C/ is carried out using same diameter 8mm diamond milling cutter
C, the milling amount of whole process are 1397cm3, cutter is not lost, processes time-consuming 60mim, brake disc volume and carbon/pottery composite wood
Expect that the ratio between embryo material volume is 0.548, i.e., stock utilization is 54.8%.
The material shear strength ess-strain prepared in embodiment 3 and comparative example is as shown in Figure 6, it is seen that embodiment 3 with it is right
Shear strength difference in ratio is little, and stress-strain diagram is serrated, and shows that its fracture mode is ductile rupture,
It can be inferred that suitable with the carbon pottery intensity of brake disc prepared by comparative example by embodiment 3, service life difference is little, but this
Method is in material use, tool loss and has great advantage on process time.
1 Contrast on effect of table
| Preparation method | Milling amount/cm3 | Stock utilization/% | Cutter loss/ | Process time/min |
| Comparative example | 3423 | 33.1 | 6 | 350 |
| Embodiment 3 | 1397 | 54.8 | 0 | 60 |
Claims (10)
1. a kind of preparation method of carbon pottery brake disc, which is characterized in that comprise the following steps that
(1) carbon fiber precast body is prepared；It is prepared with carbon fiber bundle unidirectionally without Wei Bu and web of staple fibers tire, then by one layer without dimension
Cloth, one layer of net tire, one layer carry out circulation laying without dimension cloth, it is final to carry out needle thorn, prepare D refraction statics structural carbon fiber precast body；
(2) chemical vapor deposition prepares C/C composite material；Carbon fiber precast body is put into CVI furnace, isothermal and isobaric chemistry is carried out
Vapor deposition, deposition gases are natural gas and ethylene, obtain C/C composite material；
(3) according to demand, by C/C composite processing at sector element module, circular ring shape unit module；
(4) after sector element module upper and lower surface brushing bonding agent, sector element module and circular ring shape unit module are carried out
Bonding prepares C/C brake disc；
(5) place silicon powder in BN crucible, bonding C/C brake disc be placed on silicon powder, by crucible be put into siliconising furnace into
The infiltration of row melt body, reaction melt body infiltration prepare carbon/pottery brake disc.
2. the preparation method of carbon pottery brake disc according to claim 1, which is characterized in that carbon fiber described in step (1)
Precast body is paved into a thickness of 14-16 layers/cm, and the density of carbon fiber precast body is 0.4-0.6g/cm3, needling density 25-30
Needle/cm3。
3. the preparation method of carbon pottery brake disc according to claim 1, which is characterized in that deposition described in step (2)
Temperature is 950 DEG C -1100 DEG C, natural gas purity 99.9%, Ethylene purity 99.5%, and wherein gas discharge is 40SLM-
80SLM, ethene flow 40SLM-80SLM, sedimentation time 300h-400h, obtaining density is 1.0-1.4g/cm3C/C it is compound
Material.
4. the preparation method of carbon pottery brake disc according to claim 1, which is characterized in that sector described in step (3)
Unit module quantity is 6-8, and circular ring shape unit module quantity is 2, and sector element module is arranged in two circular ring shape units
Between module.
5. the preparation method of carbon pottery brake disc according to claim 1, which is characterized in that in step (4), sector element mould
It is put into baking oven after block is Nian Jie with circular ring shape unit module to be solidified, solidification temperature is 200 DEG C -250 DEG C, soaking time 1h-
2h。
6. the preparation method of carbon pottery brake disc according to claim 1, which is characterized in that bonding described in step (4)
Agent is selected from following one:
A. the bonding agent is made by the raw material of following mass parts: 30 parts of phenolic resin, 40 parts of dehydrated alcohol, 30 parts of C powder；
B. the bonding agent is made by the raw material of following mass parts: 40 parts of phenolic resin, 40 parts of dehydrated alcohol, 20 parts of SiC powder；
C. the bonding agent is made by the raw material of following mass parts: 30 parts of furfural acetone resin, 40 parts of dehydrated alcohol, 20 parts of SiC powder；
Bonding agent raw material is put into ball grinder, > 2h ball milling mixing is carried out.
7. the preparation method of carbon pottery brake disc according to claim 6, which is characterized in that phenolic aldehyde tree used in step (4)
Rouge is 2123 types, C powder purity > 99%, granularity 1um；SiC granularity used is 0.5um, purity > 98%；Furfural acetone resin used
For KT-1 type.
8. the preparation method of carbon pottery brake disc according to claim 1, which is characterized in that in step (5), crucible is put into
After siliconising furnace, 500pa is evacuated to hereinafter, being warming up to 1500 DEG C of progress melt body infiltrations, soaking time 15min-30min.
9. the preparation method of carbon pottery brake disc according to claim 1, which is characterized in that silicon powder described in step (5)
Granularity is 200 mesh, purity >=99.9%.
10. the preparation method of carbon pottery brake disc according to claim 1, which is characterized in that silicon powder described in step (5)
Additive amount is 1-2.5 times for being bonded C/C brake disc quality.
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| CN117962432A (en) * | 2023-12-26 | 2024-05-03 | 深圳市佰斯倍新材料科技有限公司 | High-strength high-toughness carbon ceramic brake disc and preparation method thereof |
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| CN117962432A (en) * | 2023-12-26 | 2024-05-03 | 深圳市佰斯倍新材料科技有限公司 | High-strength high-toughness carbon ceramic brake disc and preparation method thereof |
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