CN108930736A - A kind of preparation method of ceramic composite fibrous brake block - Google Patents
A kind of preparation method of ceramic composite fibrous brake block Download PDFInfo
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- CN108930736A CN108930736A CN201810846141.3A CN201810846141A CN108930736A CN 108930736 A CN108930736 A CN 108930736A CN 201810846141 A CN201810846141 A CN 201810846141A CN 108930736 A CN108930736 A CN 108930736A
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- parts
- brake block
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- fibre
- fiber
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- 239000000919 ceramic Substances 0.000 title claims abstract description 49
- 239000002131 composite material Substances 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 239000000835 fiber Substances 0.000 claims abstract description 72
- 239000003365 glass fiber Substances 0.000 claims abstract description 51
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 238000004073 vulcanization Methods 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 40
- 238000002156 mixing Methods 0.000 claims description 33
- 229910002804 graphite Inorganic materials 0.000 claims description 29
- 239000010439 graphite Substances 0.000 claims description 29
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 23
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 23
- 230000010355 oscillation Effects 0.000 claims description 20
- 238000012986 modification Methods 0.000 claims description 17
- 230000004048 modification Effects 0.000 claims description 17
- 239000000758 substrate Substances 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 14
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 14
- 239000011707 mineral Substances 0.000 claims description 14
- 238000010792 warming Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- -1 polyethylene Polymers 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 239000010456 wollastonite Substances 0.000 claims description 8
- 229910052882 wollastonite Inorganic materials 0.000 claims description 8
- STMDPCBYJCIZOD-UHFFFAOYSA-N 2-(2,4-dinitroanilino)-4-methylpentanoic acid Chemical compound CC(C)CC(C(O)=O)NC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O STMDPCBYJCIZOD-UHFFFAOYSA-N 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 7
- 238000007731 hot pressing Methods 0.000 claims description 7
- 238000010348 incorporation Methods 0.000 claims description 7
- 238000003672 processing method Methods 0.000 claims description 7
- 239000000454 talc Substances 0.000 claims description 7
- 229910052623 talc Inorganic materials 0.000 claims description 7
- 238000002604 ultrasonography Methods 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000013329 compounding Methods 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000012805 post-processing Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 150000002085 enols Chemical class 0.000 description 4
- 229910021389 graphene Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000010425 asbestos Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052895 riebeckite Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical compound CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 235000021180 meal component Nutrition 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
- F16D69/023—Composite materials containing carbon and carbon fibres or fibres made of carbonizable material
-
- 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—Composition of linings ; Methods of manufacturing
- F16D69/025—Compositions based on an organic binder
- F16D69/026—Compositions based on an organic binder containing fibres
-
- 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
- F16D69/027—Compositions based on metals or inorganic oxides
- F16D69/028—Compositions based on metals or inorganic oxides containing fibres
-
- 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
- F16D2069/002—Combination of different friction materials
-
- 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
- F16D2200/0004—Materials; Production methods therefor metallic
- F16D2200/0026—Non-ferro
-
- 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
-
- 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
- F16D2200/0052—Carbon
-
- 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
- F16D2200/0056—Elastomers
-
- 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
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
- F16D2200/0065—Inorganic, e.g. non-asbestos mineral fibres
-
- 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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0082—Production methods therefor
- F16D2200/0086—Moulding materials together by application of heat and pressure
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Braking Arrangements (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to brake block technical fields, disclose a kind of preparation method of ceramic composite fibrous brake block.The brake block preparation process is first to be uniformly mixed raw material, and then successively carry out heating vulcanization, heat treatment and post-processing obtains brake block.The present invention plays enhancing skeleton function using glass fibre, ceramic fibre, composite fibre, the cracking and crack phenomenon occurred in brake block processing and use process is reduced, can be improved the stability and Noise Reduction of brake block coefficient of friction additionally by the compounding between glass fibre, ceramic fibre, composite fibre.
Description
Technical field
The present invention relates to brake block technical fields, more particularly, to a kind of preparation method of ceramic composite fibrous brake block.
Background technique
With the rapid growth of Chinese automobile volume of production and marketing, Chinese automobile manufacture level and technical level also obtain stable development
And raising.It is also good opportunities and challenges to the automobile component part supply quotient for having independent intellectual property right and research and development ability.Brake
Piece is one of components most commonly seen in automobile, and brake block is made of steel disc and the friction substrate being attached on steel disc, is worked
Principle is friction substrate by bearing extraneous pressure, generates rubbing action, never vehicle is made to achieve the purpose that deceleration.China exists
In GB12676-99 " brake system of car structure and method for testing performance " in clear stipulaties brake block cannot again containing asbestos at
Point, usually substitute asbestos fibre with steel fibre in the prior art, this semimetal friction material at high temperature with asbestos are organic rubs
It wipes material to compare, has more good frictional behaviour and temperature tolerance, but steel fibre hardness with higher, it can make mating plate
There are larger abrasion and a trembling, damage mating plate, coefficient of friction is unstable, and when braking generates noise.
Summary of the invention
The present invention is to provide one kind in order to overcome the problems, such as that prior art brake block coefficient of friction is unstable, noise is big and rub
Wipe the preparation method of the small ceramic composite fibrous brake block of coefficient stabilization, noise.
To achieve the goals above, the invention adopts the following technical scheme: a kind of preparation of ceramic composite fibrous brake block
Method, which comprises the following steps:
1) mixing: brake block friction substrate raw material is added in batch mixer, and friction substrate raw material includes matching in parts by weight
Following components: 2,123 15~20 parts of resins, 8~12 parts of graphite, 5~10 parts of tyre talc, 6~9 parts of barium sulfate, modified glass fibre
Tie up 3~7 parts, 5~7 parts of wollastonite, 3~5 parts of ceramic fibre, 12~18 parts of composite fibre, 2~5 parts of rubber powder；
2) heating vulcanization: hot-pressing processing is carried out to mixing using high tonnage hydraulic, is then vulcanized；
3) it is heat-treated: the mixing that heating vulcanization obtains being put into baking oven and is heat-treated；
4) post-process: the mixing obtained after will be heat treated passes through thick flat head chamfering, outer arc, mill inner arc, drilling, outer arc fine grinding work
Sequence obtains brake block.
2123 resins are a kind of thermoplastic phenolic resins made of polycondensation under acid medium as phenol and formaldehyde, it has
Good thermoplastic property, while assigning brake block with preferable toughness can reduce making an uproar of generating in brake block friction process
Sound；Graphite is a kind of inorganic simple substance that Mo Shi hardness is 1, is added to the abrasion resistance properties that can be improved brake block in brake block；
Ceramic fibre has preferable heat resistance and thermal stability, is conducive to the stabilization of brake block coefficient of waste under temperature match curing conditions；
Glass fibre, ceramic fibre, composite fibre play enhancing skeleton function, and what is occurred in the processing of reduction brake block and use process opens
It splits and crack phenomenon, can be improved brake block friction system additionally by the compounding between glass fibre, ceramic fibre, composite fibre
Several stability and Noise Reduction；Nitrile powder is compounded with 2123 resins can be improved the toughness of brake block and the thermal stability of brake block
Energy；Rubber meal component is vulcanizate and butylbenzene vulcanizate, can further function as the effect to friction plate toughening；Wollastonite is to brake
Vehicle piece grace can play humidification.
Preferably, composite fibre is made of mineral fibres and aluminum fiber, the mass ratio of mineral fibres and aluminum fiber is 1:1
~4.
Preferably, the length of the mineral composition fiber is 10~20mm, diameter is 0.1~1mm.
Preferably, the length of the ceramic fibre is 20~30mm, diameter is 1~2mm.
Preferably, the length of the modified glass-fiber is 5~10mm, diameter is 0.5~1mm.
Preferably, the modified glass-fiber the preparation method comprises the following steps: by 1~3 parts by weight of glass fiber and 0.2~0.3
Parts by weight silane coupling agent is added in 90~100 parts by weight of deionized water, stirs 10~15min, and 2~6 parts by weight are then added
Polyvinyl alcohol is warming up to 70~80 DEG C, and sonic oscillation is completely dissolved polyvinyl alcohol, and it is nano oxidized that 2~3 parts by weight are then added
Zinc, continues 10~20min of sonic oscillation, and glass fibre is put into vacuum after 80~100Hz, filtering by the control of sonic oscillation frequency
2~5h is dried in vacuo in drying box at 50~60 DEG C, obtains modified glass-fiber.Polyvinyl alcohol is handed in a heated condition
Connection reaction generates layer of polyethylene alcohol protective film in fiberglass surfacing, and polyvinyl alcohol protective film can protect glass fibre material
Material is injury-free in process of producing product, as far as possible the holding original length of glass fibre, to improve the performance of brake block, then
Deposit nano zine oxide on polyvinyl alcohol film, surface of nanometer zinc oxide has more hydroxyl, can on polyvinyl alcohol
Hydroxyl generate hydrogen bond action, to make nano granular of zinc oxide and polyethylene film stable bond, increase glass fibre and
Contact area between 2123 resin matrixes is conducive to improve the intensity that the two combines, to play preferable freedom from cracking effect.
Preferably, the graphite passes through modification, modification processing method are as follows: allyl glycidol is added in graphite
It in ether, is stirred, ceramic fibre is put into baking oven at 40~50 DEG C dry 2~5h after filtering, then quality is added in it
In the polyvinyl alcohol water solution that concentration is 2~5%, wherein the mass ratio of graphite and polyvinyl alcohol is 1:3~6, it is warming up to 40~
60 DEG C, 2~4h of reaction obtains modified graphite.The present invention passes through the epoxy ring-opening and polyvinyl alcohol on allyl glycidyl ether
On hydroxyl react on the surface of graphene generate one layer of oxide-resistant film, prevent graphene from aoxidizing under the high temperature conditions,
The frictional behaviour of brake block is reduced, in addition oxidation film can be improved the wetting effect of graphene surface, exist to increase graphene
Dispersibility in 2123 resins.
Preferably, the control of batch mixer colter revolving speed exists in 160~220rmp, the control of reamer revolving speed in the step 1)
1800~2400rmp, incorporation time are 2~6h.
Preferably, pressure control is controlled in 20~30Mpa, temperature 100 in the step 2) in autoclaving process
~120 DEG C.
Preferably, heat treatment temperature is 130~160 DEG C in the step 3).
Therefore, the invention has the following beneficial effects: the present invention is played using glass fibre, ceramic fibre, composite fibre
Enhance skeleton function, reduce the cracking and crack phenomenon that occur in brake block processing and use process, additionally by glass fibre,
Compounding between ceramic fibre, composite fibre can be improved the stability and Noise Reduction of brake block coefficient of friction.
Specific embodiment
Below by specific embodiment, technical scheme is described further.
In the present invention, if not refering in particular to, used raw material and equipment etc. are commercially available or commonly used in the art,
Method in embodiment is unless otherwise instructed the conventional method of this field.
Embodiment 1
A kind of preparation method of ceramic composite fibrous brake block, comprising the following steps:
1) mixing: brake block friction substrate raw material is added in batch mixer, and friction substrate raw material includes matching in parts by weight
Following components: 2,123 15 parts of resins, 8 parts of graphite, 5 parts of tyre talc, 6 parts of barium sulfate, 3 parts of modified glass-fiber, wollastonite 5
Part, 3 parts of ceramic fibre, 12 parts of composite fibre, 2 parts of rubber powder；The control of batch mixer colter revolving speed is in 160rmp, the control of reamer revolving speed
In 1800rmp, incorporation time 2h；
2) heating vulcanization: hot-pressing processing is carried out to mixing using high tonnage hydraulic, pressure control exists in 20Mpa, temperature control
100 DEG C, then vulcanized；
3) it is heat-treated: the mixing that heating vulcanization obtains being put into baking oven and is heat-treated, heat treatment temperature is 130 DEG C；
4) post-process: the mixing obtained after will be heat treated passes through thick flat head chamfering, outer arc, mill inner arc, drilling, outer arc fine grinding work
Sequence obtains brake block.
Wherein, composite fibre is made of mineral fibres and aluminum fiber, and the length of composite fibre is 10mm, diameter 0.1mm,
The mass ratio of mineral fibres and aluminum fiber is 1:1；The length of ceramic fibre is 20mm, diameter 1mm；The length of modified glass-fiber
Degree is 5mm, diameter 0.5mm.
Wherein, modified glass-fiber the preparation method comprises the following steps: by 1 parts by weight of glass fiber and 0.2 parts by weight silane coupling agent
It is added in 90 parts by weight of deionized water, stirs 10min, 2 weight account polyethylene alcohol are then added and are warming up to 70 DEG C, sonic oscillation makes
Polyvinyl alcohol is completely dissolved, and 2 parts by weight nano zine oxides are then added, and continues sonic oscillation 10min, the control of sonic oscillation frequency
Glass fibre is put into vacuum oven after 80Hz, filtering and is dried in vacuo 2h at 50 DEG C, obtains modified glass-fiber.
Wherein, graphite passes through modification, modification processing method are as follows: graphite is added in allyl glycidyl ether, stirs
Mixing is mixed, ceramic fibre is put into baking oven at 40 DEG C dry 2h after filtering, then the poly- second that mass concentration is 2% is added in it
In enol aqueous solution, wherein the mass ratio of graphite and polyvinyl alcohol is 1:3, is warming up to 40 DEG C, reaction 2h obtains modified graphite.
Embodiment 2
A kind of preparation method of ceramic composite fibrous brake block, comprising the following steps:
1) mixing: brake block friction substrate raw material is added in batch mixer, and friction substrate raw material includes matching in parts by weight
Following components: 2,123 16 parts of resins, 9 parts of graphite, 6 parts of tyre talc, 7 parts of barium sulfate, 4 parts of modified glass-fiber, wollastonite 5
Part, 3 parts of ceramic fibre, 13 parts of composite fibre, 3 parts of rubber powder；The control of batch mixer colter revolving speed is in 180rmp, the control of reamer revolving speed
In 1900rmp, incorporation time 3h；
2) heating vulcanization: hot-pressing processing is carried out to mixing using high tonnage hydraulic, pressure control exists in 22Mpa, temperature control
105 DEG C, then vulcanized；
3) it is heat-treated: the mixing that heating vulcanization obtains being put into baking oven and is heat-treated, heat treatment temperature is 140 DEG C；
4) post-process: the mixing obtained after will be heat treated passes through thick flat head chamfering, outer arc, mill inner arc, drilling, outer arc fine grinding work
Sequence obtains brake block.
Wherein, composite fibre is made of mineral fibres and aluminum fiber, and the length of composite fibre is 12mm, diameter 0.3mm,
The mass ratio of mineral fibres and aluminum fiber is 1:2；The length of ceramic fibre is 22mm, diameter 1mm；The length of modified glass-fiber
Degree is 6mm, diameter 0.6mm.
Wherein, modified glass-fiber the preparation method comprises the following steps: by 1 parts by weight of glass fiber and 0.2 parts by weight silane coupling agent
It is added in 92 parts by weight of deionized water, stirs 12min, 3 weight account polyethylene alcohol are then added and are warming up to 74 DEG C, sonic oscillation makes
Polyvinyl alcohol is completely dissolved, and 2 parts by weight nano zine oxides are then added, and continues sonic oscillation 15min, the control of sonic oscillation frequency
Glass fibre is put into vacuum oven after 80Hz, filtering and is dried in vacuo 3h at 52 DEG C, obtains modified glass-fiber.
Wherein, graphite passes through modification, modification processing method are as follows: graphite is added in allyl glycidyl ether, stirs
Mixing is mixed, ceramic fibre is put into baking oven at 44 DEG C dry 3h after filtering, then the poly- second that mass concentration is 3% is added in it
In enol aqueous solution, wherein the mass ratio of graphite and polyvinyl alcohol is 1:4, is warming up to 45 DEG C, reaction 2h obtains modified graphite.
Embodiment 3
A kind of preparation method of ceramic composite fibrous brake block, comprising the following steps:
1) mixing: brake block friction substrate raw material is added in batch mixer, and friction substrate raw material includes matching in parts by weight
Following components: 2,123 17 parts of resins, 10 parts of graphite, 7 parts of tyre talc, 7.5 parts of barium sulfate, 5 parts of modified glass-fiber, wollastonite
6 parts, 4 parts of ceramic fibre, 15 parts of composite fibre, 3.5 parts of rubber powder；Batch mixer colter revolving speed is controlled in 190rmp, reamer revolving speed
Control is in 2000rmp, incorporation time 4h；
2) heating vulcanization: hot-pressing processing is carried out to mixing using high tonnage hydraulic, pressure control exists in 25Mpa, temperature control
110 DEG C, then vulcanized；
3) it is heat-treated: the mixing that heating vulcanization obtains being put into baking oven and is heat-treated, heat treatment temperature is 145 DEG C；
4) post-process: the mixing obtained after will be heat treated passes through thick flat head chamfering, outer arc, mill inner arc, drilling, outer arc fine grinding work
Sequence obtains brake block.
Wherein, composite fibre is made of mineral fibres and aluminum fiber, and the length of composite fibre is 15mm, diameter 0.5mm,
The mass ratio of mineral fibres and aluminum fiber is 1:2.5；The length of ceramic fibre is 26mm, diameter 1.5mm；Modified glass-fiber
Length be 7mm, diameter 0.7mm.
Wherein, modified glass-fiber the preparation method comprises the following steps: by 2 parts by weight of glass fiber and 0.25 parts by weight silane coupling agent
It is added in 95 parts by weight of deionized water, stirs 13min, 4 weight account polyethylene alcohol are then added and are warming up to 76 DEG C, sonic oscillation makes
Polyvinyl alcohol is completely dissolved, and 2.5 parts by weight nano zine oxides are then added, and continues sonic oscillation 16min, sonic oscillation frequency control
Glass fibre is put into vacuum oven by system after 90Hz, filtering is dried in vacuo 3.5h at 53 DEG C, obtains modified glass fibre
Dimension.
Wherein, graphite passes through modification, modification processing method are as follows: graphite is added in allyl glycidyl ether, stirs
Mixing is mixed, ceramic fibre is put into baking oven at 46 DEG C dry 3.5h after filtering, it is 3.5% that then mass concentration, which is added, in it
In polyvinyl alcohol water solution, wherein the mass ratio of graphite and polyvinyl alcohol is 1:4.5, is warming up to 50 DEG C, reaction 3h is modified
Graphite.
Embodiment 4
A kind of preparation method of ceramic composite fibrous brake block, comprising the following steps:
1) mixing: brake block friction substrate raw material is added in batch mixer, and friction substrate raw material includes matching in parts by weight
Following components: 2,123 18 parts of resins, 11 parts of graphite, 8 parts of tyre talc, 8 parts of barium sulfate, 6 parts of modified glass-fiber, wollastonite 7
Part, 5 parts of ceramic fibre, 16 parts of composite fibre, 4 parts of rubber powder；The control of batch mixer colter revolving speed is in 200rmp, the control of reamer revolving speed
In 2200rmp, incorporation time 5h；
2) heating vulcanization: hot-pressing processing is carried out to mixing using high tonnage hydraulic, pressure control exists in 28Mpa, temperature control
115 DEG C, then vulcanized；
3) it is heat-treated: the mixing that heating vulcanization obtains being put into baking oven and is heat-treated, heat treatment temperature is 150 DEG C；
4) post-process: the mixing obtained after will be heat treated passes through thick flat head chamfering, outer arc, mill inner arc, drilling, outer arc fine grinding work
Sequence obtains brake block.
Wherein, composite fibre is made of mineral fibres and aluminum fiber, and the length of composite fibre is 18mm, diameter 0.8mm,
The mass ratio of mineral fibres and aluminum fiber is 1:3；The length of ceramic fibre is 28mm, diameter 2mm；The length of modified glass-fiber
Degree is 8mm, diameter 0.8mm.
Wherein, modified glass-fiber the preparation method comprises the following steps: by 3 parts by weight of glass fiber and 0.3 parts by weight silane coupling agent
It is added in 98 parts by weight of deionized water, stirs 14min, 5 weight account polyethylene alcohol are then added and are warming up to 78 DEG C, sonic oscillation makes
Polyvinyl alcohol is completely dissolved, and 3 parts by weight nano zine oxides are then added, and continues sonic oscillation 18min, the control of sonic oscillation frequency
Glass fibre is put into vacuum oven after 100Hz, filtering and is dried in vacuo 4h at 54 DEG C, obtains modified glass-fiber.
Wherein, graphite passes through modification, modification processing method are as follows: graphite is added in allyl glycidyl ether, stirs
Mixing is mixed, ceramic fibre is put into baking oven at 48 DEG C dry 4h after filtering, then the poly- second that mass concentration is 4% is added in it
In enol aqueous solution, wherein the mass ratio of graphite and polyvinyl alcohol is 1:5, is warming up to 55 DEG C, reaction 4h obtains modified graphite.
Embodiment 5
A kind of preparation method of ceramic composite fibrous brake block, comprising the following steps:
1) mixing: brake block friction substrate raw material is added in batch mixer, and friction substrate raw material includes matching in parts by weight
Following components: 2,123 20 parts of resins, 12 parts of graphite, 10 parts of tyre talc, 9 parts of barium sulfate, 7 parts of modified glass-fiber, wollastonite 7
Part, 5 parts of ceramic fibre, 18 parts of composite fibre, 5 parts of rubber powder；The control of batch mixer colter revolving speed is in 220rmp, the control of reamer revolving speed
In 2400rmp, incorporation time 6h；
2) heating vulcanization: hot-pressing processing is carried out to mixing using high tonnage hydraulic, pressure control exists in 30Mpa, temperature control
120 DEG C, then vulcanized；
3) it is heat-treated: the mixing that heating vulcanization obtains being put into baking oven and is heat-treated, heat treatment temperature is 160 DEG C；
4) post-process: the mixing obtained after will be heat treated passes through thick flat head chamfering, outer arc, mill inner arc, drilling, outer arc fine grinding work
Sequence obtains brake block.
Wherein, composite fibre is made of mineral fibres and aluminum fiber, and the length of composite fibre is 20mm, diameter 1mm, mine
The mass ratio of fibres and aluminum fiber is 1:4；The length of ceramic fibre is 30mm, diameter 2mm；The length of modified glass-fiber
For 10mm, diameter 1mm.
Wherein, modified glass-fiber the preparation method comprises the following steps: by 3 parts by weight of glass fiber and 0.3 parts by weight silane coupling agent
It is added in 100 parts by weight of deionized water, stirs 15min, 6 weight account polyethylene alcohol are then added and are warming up to 80 DEG C, sonic oscillation
It is completely dissolved polyvinyl alcohol, 3 parts by weight nano zine oxides are then added, continues sonic oscillation 20min, sonic oscillation frequency control
Glass fibre is put into vacuum oven by system after 100Hz, filtering is dried in vacuo 5h at 60 DEG C, obtains modified glass fibre
Dimension.
Wherein, graphite passes through modification, modification processing method are as follows: graphite is added in allyl glycidyl ether, stirs
Mixing is mixed, ceramic fibre is put into baking oven at 50 DEG C dry 5h after filtering, then the poly- second that mass concentration is 5% is added in it
In enol aqueous solution, wherein the mass ratio of graphite and polyvinyl alcohol is 1:6, is warming up to 60 DEG C, reaction 4h obtains modified graphite.
The coefficient of friction and wear rate of Examples 1 to 5 brake block are tested, test result is as follows shown in table:
By test result it is found that brake block of the present invention has relatively stable coefficient of friction and lower abrasion under temperature match curing conditions
Rate.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention
Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of preparation method of ceramic composite fibrous brake block, which comprises the following steps:
1) mixing: brake block friction substrate raw material is added in batch mixer, and friction substrate raw material includes matching in parts by weight
Following components: 2,123 15 ~ 20 parts of resins, 8 ~ 12 parts of graphite, 5 ~ 10 parts of tyre talc, 6 ~ 9 parts of barium sulfate, modified glass-fiber 3 ~
7 parts, 5 ~ 7 parts of wollastonite, 3 ~ 5 parts of ceramic fibre, 12 ~ 18 parts of composite fibre, 2 ~ 5 parts of rubber powder；
2) heating vulcanization: hot-pressing processing is carried out to mixing using high tonnage hydraulic, is then vulcanized；
3) it is heat-treated: the mixing that heating vulcanization obtains being put into baking oven and is heat-treated；
4) post-process: the mixing obtained after will be heat treated passes through thick flat head chamfering, outer arc, mill inner arc, drilling, outer arc fine grinding work
Sequence obtains brake block.
2. a kind of preparation method of ceramic composite fibrous brake block according to claim 1, which is characterized in that the step
1) composite fibre is made of mineral fibres and aluminum fiber in, and the mass ratio of mineral fibres and aluminum fiber is 1:1 ~ 4.
3. a kind of preparation method of ceramic composite fibrous brake block according to claim 1, which is characterized in that the step
1) length of composite fibre is 10 ~ 20mm in, and diameter is 0.1 ~ 1mm.
4. a kind of preparation method of ceramic composite fibrous brake block according to claim 1, which is characterized in that the step
1) length of ceramic fibre is 20 ~ 30mm in, and diameter is 1 ~ 2mm.
5. a kind of preparation method of ceramic composite fibrous brake block according to claim 1, which is characterized in that the step
1) length of modified glass-fiber is 5 ~ 10mm in, and diameter is 0.5 ~ 1mm.
6. a kind of preparation method of ceramic composite fibrous brake block described in any claim according to claim 1 ~ 5, special
Sign is, modified glass-fiber the preparation method comprises the following steps: by 1 ~ 3 parts by weight of glass fiber and 0.2 ~ 0.3 weight in the step 1)
Part silane coupling agent is added in 90 ~ 100 parts by weight of deionized water, stirs 10 ~ 15min, and 2 ~ 6 weight account polyethylene alcohol are then added
70 ~ 80 DEG C are warming up to, sonic oscillation is completely dissolved polyvinyl alcohol, and 2 ~ 3 parts by weight nano zine oxides are then added, and continues ultrasound
Vibrating 10 ~ 20min, glass fibre is put into vacuum oven 50 by the control of sonic oscillation frequency after 80 ~ 100Hz, filtering ~
It is dried in vacuo 2 ~ 5h at 60 DEG C, obtains modified glass-fiber.
7. a kind of preparation method of ceramic composite fibrous brake block described in any claim according to claim 1 ~ 5, special
Sign is that graphite passes through modification, modification processing method are as follows: allyl glycidyl ether is added in graphite in the step 1)
In, it is stirred, ceramic fibre is put into baking oven at 40 ~ 50 DEG C dry 2 ~ 5h after filtering, then mass concentration is added in it
For in 2 ~ 5% polyvinyl alcohol water solution, wherein the mass ratio of graphite and polyvinyl alcohol is 1:3 ~ 6,40 ~ 60 DEG C are warming up to, reaction
2 ~ 4h obtains modified graphite.
8. a kind of preparation method of ceramic composite fibrous brake block described in any claim according to claim 1 ~ 5, special
Sign is that the control of batch mixer colter revolving speed is controlled in 160 ~ 220rmp, reamer revolving speed 1800 ~ 2400 in the step 1)
Rmp, incorporation time are 2 ~ 6h.
9. a kind of preparation method of ceramic composite fibrous brake block described in any claim according to claim 1 ~ 5, special
Sign is, in the step 2 in autoclaving process, pressure control is controlled in 20 ~ 30Mpa, temperature at 100 ~ 120 DEG C.
10. a kind of preparation method of ceramic composite fibrous brake block described in any claim according to claim 1 ~ 5, special
Sign is that heat treatment temperature is 130 ~ 160 DEG C in the step 3).
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| CN110372923A (en) * | 2019-05-29 | 2019-10-25 | 宁国飞鹰汽车零部件股份有限公司 | A kind of heavy-duty car brake block |
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