CN108386466A - A kind of assorted fibre enhancing ceramic-based friction material and its preparation method and application - Google Patents
A kind of assorted fibre enhancing ceramic-based friction material and its preparation method and application Download PDFInfo
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- CN108386466A CN108386466A CN201810383937.XA CN201810383937A CN108386466A CN 108386466 A CN108386466 A CN 108386466A CN 201810383937 A CN201810383937 A CN 201810383937A CN 108386466 A CN108386466 A CN 108386466A
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- friction material
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- based friction
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- 239000000835 fiber Substances 0.000 title claims abstract description 94
- 239000002783 friction material Substances 0.000 title claims abstract description 67
- 239000000919 ceramic Substances 0.000 title claims abstract description 56
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 239000010881 fly ash Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 19
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910001928 zirconium oxide Inorganic materials 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000011230 binding agent Substances 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 239000000314 lubricant Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 9
- 238000007711 solidification Methods 0.000 claims abstract description 9
- 230000008023 solidification Effects 0.000 claims abstract description 9
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 239000013078 crystal Substances 0.000 claims description 12
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- 239000010439 graphite Substances 0.000 claims description 12
- 229940056319 ferrosoferric oxide Drugs 0.000 claims description 11
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 11
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 11
- 229920000459 Nitrile rubber Polymers 0.000 claims description 10
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 7
- 229920001568 phenolic resin Polymers 0.000 claims description 7
- 239000005011 phenolic resin Substances 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- CMLFRMDBDNHMRA-UHFFFAOYSA-N 2h-1,2-benzoxazine Chemical compound C1=CC=C2C=CNOC2=C1 CMLFRMDBDNHMRA-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 244000226021 Anacardium occidentale Species 0.000 description 7
- 235000020226 cashew nut Nutrition 0.000 description 7
- 229920000180 alkyd Polymers 0.000 description 6
- 239000010466 nut oil Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000010792 warming Methods 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- BCHZICNRHXRCHY-UHFFFAOYSA-N 2h-oxazine Chemical compound N1OC=CC=C1 BCHZICNRHXRCHY-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000005605 benzo group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000008710 crystal-8 Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F16D69/027—Compositions based on metals or inorganic oxides
- F16D69/028—Compositions based on metals or inorganic oxides containing fibres
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
A kind of assorted fibre enhancing ceramic-based friction material of present invention offer and its preparation method and application, is related to friction materials technology field.A kind of assorted fibre enhancing ceramic-based friction material, by weight percentage, the raw material for preparing assorted fibre enhancing ceramic-based friction material includes：Assorted fibre 10~30%, flyash 30~55%, binder 8~23%, anti-wear agent 13~32% and lubricant 6~17%, assorted fibre include alumina fibre and Zirconium oxide fibre.The material is cost-effective, at low cost, stable friction factor, has preferable high temperature resistance, wearability and acidproof corrosion resistance.The preparation method of above-mentioned assorted fibre enhancing ceramic-based friction material, including：The batch mixing of raw material is subjected to cold pressing solidification and hot-press solidifying, then will be heat-treated by cured material.This method is easy to operate, and controllability is strong, is suitable for industrialized production.
Description
Technical field
The present invention relates to friction materials technology fields, and more particularly to a kind of assorted fibre enhancing ceramic-based friction material and
Preparation method and application.
Background technology
Friction material has many advantages, such as that mechanical performance is high, friction stability is good and wear resistance is high, is to be widely used in vapour
A kind of key function material in vehicle brake, can provide important safety assurance for automobile brake.Therefore, high-performance is developed
Brake friction material meets the design requirement of braking, and the technical merit to improving brake apparatus plays an important roll and actually answers
With value.Currently, having carried out extensive research for the friction material of the types such as semimetal, and more achievement is obtained, but it is deposited
Easy-to-rust, brake noise is big, easily hinder antithesis disk the problems such as, it is also necessary to further improve.
Invention content
The purpose of the present invention is to provide a kind of assorted fibres to enhance ceramic-based friction material, the lower cost for material, tool
There are preferable stability, high temperature resistance, wearability and acidproof corrosion resistance.
Another object of the present invention is to provide the preparation method that above-mentioned assorted fibre enhances ceramic-based friction material, the party
Method is easy to operate, and controllability is strong, is suitable for industrialized production.
Another object of the present invention is to provide above-mentioned assorted fibre to enhance ceramic-based friction material in terms of automobile making
Application.
The present invention solves its technical problem using following technical scheme to realize.
The present invention proposes that a kind of assorted fibre enhancing ceramic-based friction material prepares assorted fibre by weight percentage
Enhancing ceramic-based friction material raw material include：Assorted fibre 10~30%, flyash 30~55%, binder 8~23% are resistance to
Grinding agent 13~32% and lubricant 6~17%, assorted fibre include alumina fibre and Zirconium oxide fibre.
The present invention proposes the preparation method of above-mentioned assorted fibre enhancing ceramic-based friction material, including：By the batch mixing of raw material
Cold pressing solidification and hot-press solidifying are carried out, then will be heat-treated by cured material.
Application of the above-mentioned assorted fibre enhancing ceramic-based friction material in terms of automobile making.
The beneficial effects of the invention are as follows：
The present invention using assorted fibre, flyash, binder, anti-wear agent and lubricant as raw material, using flyash as
Ceramic matrix, it includes alumina fibre and Zirconium oxide fibre to have preferable high temperature resistance, assorted fibre, have high intensity,
High tenacity, high-temperature oxidation resistance, high temperature stability performance, acid-alkali-corrosive-resisting performance, three are used in combination with synergy
Effect forms high temperature resistant, the Co-crosslinked System of high tenacity under the action of binder, anti-wear agent and lubricant, adjusts each component
Proportioning so that assorted fibre obtained enhancing ceramic-based friction material has preferably high temperature resistance, wear-resisting property, acidproof
Corrosion resistance, mechanical property and mechanical strength in terms of can be applied to automobile making, can be used for preparing the frictions such as automotive brake pads
Material so that the automotive brake pads heat-resisting quantity of preparation is good, abrasion is small, brake noise is small.Flyash is industrial residue, by waste
It recycles, reduces influence of the industrial residue to environment, while reducing production cost.Assorted fibre enhances ceramic-based friction material
Preparation method simple possible, controllability is strong, is suitable for industrialized production.
Specific implementation mode
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, builds according to normal condition or manufacturer
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
Ceramic-based friction material and its preparation method and application is enhanced to a kind of assorted fibre of the embodiment of the present invention below
It is specifically described.
A kind of assorted fibre provided in an embodiment of the present invention enhances ceramic-based friction material, by weight percentage, prepares
Assorted fibre enhancing ceramic-based friction material primary raw material include：Assorted fibre 10~30%, flyash 30~55% bond
Agent 8~23%, anti-wear agent 13~32% and lubricant 6~17%, assorted fibre include alumina fibre and Zirconium oxide fibre.
Preferably, assorted fibre is 15~25%, and flyash is 35~50%, and binder is 10~20%, and anti-wear agent is 15~30%
And lubricant is 10~15%.
Assorted fibre includes alumina fibre and Zirconium oxide fibre, alumina fibre have temperature in use it is high, it is corrosion-resistant and
The advantages that matrix compatibility is good, intensity is higher, brake noise is low, braking effort is good, Zirconium oxide fibre have intensity height, toughness
It is good, temperature in use is high, high-temperature oxidation resistance is fabulous, have stable high-temperature performance, is non-volatile, is pollution-free, durable and green ring
The features such as guarantor, meanwhile, the ability of the acid-alkali-corrosive-resisting of Zirconium oxide fibre is also much stronger than alumina fibre and glass fibre etc..It is multiple
It closes and uses alumina fibre and Zirconium oxide fibre, can significantly enhance the mechanical property of friction material, wearability, hardness and resistance to
High-temperature behavior.Preferably, when the mass ratio of alumina fibre and Zirconium oxide fibre is 1~5:When 1, the physical property of friction material
Preferable with chemical property, especially high temperature resistance is promoted larger.
With the development of industry, industrial residue flyash discharge capacity increases year by year, becomes the larger work of the current discharge capacity in China
One of industry waste residue.A large amount of flyash is untreated, will produce airborne dust, pollutes air；River can be caused to silt up if being discharged into water system,
And toxic chemical substance therein can also cause damages to human body and biology.The present invention is carried using flyash as ceramic matrix
The ceramic content of high material, and then high temperature resistance, friction and wear behavior, the chemical stability of material are improved, noise is reduced, and
And refuse reclamation, influence of the industrial residue to environment is reduced, production cost is reduced.The flyash that the present invention uses is mainly work
Industry waste residue and pulverized fuel ash, industrial residue flyash mainly include silica, zirconium oxide, ferrous oxide, iron oxide, calcium oxide and
The substances such as titanium dioxide.Flyash can also enhance the metal species of the assorted fibre enhancing ceramic-based friction material of preparation and contain
Amount, with alumina fibre and Zirconium oxide fibre collective effect, has the function of synergy, improves mechanical strength, the power of material
Learn performance and friction and wear behavior.
Binder is the guarantee of adhesion strength between abrasive material and matrix, and binder includes phenolic resin, nitrile rubber, benzo
At least one of oxazine resin, epoxy resin.When binder includes two kinds or more of chemical agent, fully comprehensively utilize not
With the performance of binder, high temperature resistant, the Co-crosslinked System of high tenacity are formed with assorted fibre and flyash, further increases friction
Mechanical strength, mechanical property, resistance to acid and alkali and the friction and wear behavior of material.Preferably, phenolic resin includes cashew nut shell oil
Phenol-formaldehyde resin modified.
Friction material needs have higher wear-resisting property, ensures its service life.The anti-wear agent packet of the embodiment of the present invention
Include at least one of ice crystal, ferroso-ferric oxide and copper powder.When compound use ice crystal, ferroso-ferric oxide and copper powder
When, transfer membrane is formed between friction material and antithesis, is improved moment of friction and is stablized friction coefficient, reduces the damage to mating plate
Wound, wear-resisting property is highly improved, while also improving the thermal stability of friction material.
Lubricant assists anti-wear agent to improve the wearability of friction material, reduces noise and reduces friction coefficient.In the present invention
Lubricant includes at least one of molybdenum disulfide and graphite.
Further, in the present invention preferably embodiment, when raw material includes：Assorted fibre 10~30%, flyash 30
~55%, phenolic resin 5~15%, nitrile rubber 3~8%, ice crystal 5~10%, molybdenum disulfide 1~5%, graphite 5~
12%, when ferroso-ferric oxide 5~12% and copper powder 3~10%, assorted fibre enhancing ceramic-based friction material obtained has
Preferable high temperature resistance, mechanical property, wearability, resistance to acid and alkali and mechanical strength.Preferably, the content of assorted fibre can be with
Be 16%, 19%, 21%, 22%, 26%, 28%, 30%, the content of flyash can be 31%, 33%, 36%, 37%,
39%, 42%, 46%, 48%, 51%, 55%, the content of phenolic resin can be 6%, 7%, 9%, 12%, 15%, Ding Qing
The content of rubber can be 4%, 5%, 7%, 6%, and the content of ice crystal can be 6%, 7%, 8%, 9%, molybdenum disulfide
Content can be 2%, 4%, and the content of graphite can be 7%, 8%, 9%, 11%, the content of ferroso-ferric oxide can be 6%,
9%, 10% and copper powder content can be 6%, 8%, 9%.
The present invention also provides the preparation methods that above-mentioned assorted fibre enhances ceramic-based friction material, including：
Dispensing：Raw material is weighed according to the ratio；
Batch mixing：The present invention uses batch mixer batch mixing, the raw material weighed up is put into high speed mixer, 4~6min of batch mixing.
Compression moulding：The present invention uses cold moudling-hot-press solidifying two-step method, and batch mixing is poured into cold stamping die, 140~
10~15s of pressurize under the pressure of 160MPa.To through and cold pressing cured batch mixing and be placed in hot-die, 155~165 DEG C, 30~
Pressurize is carried out under conditions of 50MPa, the thickness for enhancing ceramic-based friction material during pressurize according to assorted fibre is put
Gas.Preferably, each deflation time is 60s/mm, and deflation number is 8~12 times.The step makes each raw material combines more to step up
It is close, enhance the density and mechanical strength of friction material.
Heat treatment：Batch mixing after solidification is kept the temperature into 3~5h under conditions of 150~170 DEG C, with 3~5 DEG C/min's
After heating rate rises to 200~220 DEG C, 3~5h is kept the temperature.Material its stability after heat treatment is more preferable, and high temperature resistance is more preferably.
Assorted fibre provided by the invention enhancing ceramic-based friction material have preferable high temperature resistance, mechanical property,
Wearability, resistance to acid and alkali and mechanical strength in terms of can be applied to automobile making, can be used for preparing the friction materials such as automotive brake pads
Material so that the automotive brake pads heat-resisting quantity of preparation is good, abrasion is small, brake noise is small.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1
A kind of assorted fibre enhancing ceramic-based friction material and preparation method thereof is present embodiments provided, including：
By weight percentage, assorted fibre 10% is weighed, flyash 48%, cashew nut oil modified alkyd resin 12%,
Nitrile rubber 3%, ice crystal 6%, molybdenum disulfide 2%, graphite 7%, ferroso-ferric oxide 7%, copper powder 5%.Assorted fibre includes
Mass ratio is 1:1 alumina fibre and Zirconium oxide fibre.
Each component materials are weighed by above-mentioned weight ratio, using cold moudling-hot-press solidifying two-step method, including：
Load weighted each material is put into cone tank batch mixer, batch mixing 4min；The mixture weighed is poured into cold stamping die
In, pressure 142MPa, dwell time 11s；Sample after cold pressing is put into hot-die, temperature is 155 DEG C, pressure is
Under conditions of 30MPa, pressurize 12min deflates 11 times；Ceramic-based friction material sample after solidification is put into heat-treatment furnace,
3h is kept the temperature under conditions of 150 DEG C, 200 DEG C is warming up to the heating rate of 3 DEG C/min, keeps the temperature 3h.
Embodiment 2
A kind of assorted fibre enhancing ceramic-based friction material and preparation method thereof is present embodiments provided, including：
By weight percentage, assorted fibre 20%, flyash 42%, cashew nut oil modified alkyd resin 8%, fourth are weighed
Nitrile rubber 4%, ice crystal 6%, molybdenum disulfide 3%, graphite 7%, ferroso-ferric oxide 5%, copper powder 5%.Assorted fibre includes matter
Amount is than being 5:1 alumina fibre and Zirconium oxide fibre.
Each component materials are weighed by above-mentioned weight ratio, using cold moudling-hot-press solidifying two-step method, including：
Load weighted each material is put into cone tank batch mixer, batch mixing 5min；The mixture weighed is poured into cold stamping die
In, pressure 150MPa, dwell time 12s；Sample after cold pressing is put into hot-die, temperature is 160 DEG C, pressure is
Under conditions of 40MPa, pressurize 12min deflates 10 times；Ceramic-based friction material sample after solidification is put into heat-treatment furnace,
4h is kept the temperature under conditions of 160 DEG C, 210 DEG C is warming up to the heating rate of 5 DEG C/min, keeps the temperature 4h.
Embodiment 3
A kind of assorted fibre enhancing ceramic-based friction material and preparation method thereof is present embodiments provided, including：
By weight percentage, assorted fibre 30%, flyash 40%, cashew nut oil modified alkyd resin 8%, fourth are weighed
Nitrile rubber 2%, ice crystal 4%, molybdenum disulfide 2%, graphite 6%, ferroso-ferric oxide 4%, copper powder 4%.Assorted fibre includes matter
Amount is than being 2:1 alumina fibre and Zirconium oxide fibre.
Each component materials are weighed by above-mentioned weight ratio, using cold moudling-hot-press solidifying two-step method, including：
Load weighted each material is put into cone tank batch mixer, batch mixing 5min；The mixture weighed is poured into cold stamping die
In, pressure 150MPa, dwell time 12s；Sample after cold pressing is put into hot-die, temperature is 160 DEG C, pressure is
Under conditions of 40MPa, pressurize 12min deflates 10 times；Ceramic-based friction material sample after solidification is put into heat-treatment furnace,
4h is kept the temperature under conditions of 160 DEG C, 210 DEG C is warming up to the heating rate of 5 DEG C/min, keeps the temperature 4h.
Embodiment 4
A kind of assorted fibre enhancing ceramic-based friction material and preparation method thereof is present embodiments provided, including：
By weight percentage, assorted fibre 30%, flyash 35%, cashew nut oil modified alkyd resin 8%, fourth are weighed
Nitrile rubber 6%, ice crystal 5%, molybdenum disulfide 2%, graphite 6%, ferroso-ferric oxide 5%, copper powder 3%.Assorted fibre includes matter
Amount is than being 3:1 alumina fibre and Zirconium oxide fibre.
Each component materials are weighed by above-mentioned weight ratio, using cold moudling-hot-press solidifying two-step method, including：
Load weighted each material is put into cone tank batch mixer, batch mixing 6min；The mixture weighed is poured into cold stamping die
In, pressure 150MPa, dwell time 15s；Sample after cold pressing is put into hot-die, temperature is 165 DEG C, pressure is
Under conditions of 50MPa, pressurize 13min deflates 9 times；Ceramic-based friction material sample after solidification is put into heat-treatment furnace,
5h is kept the temperature under conditions of 160 DEG C, 220 DEG C is warming up to the heating rate of 4 DEG C/min, keeps the temperature 5h.
Embodiment 5
A kind of assorted fibre enhancing ceramic-based friction material and preparation method thereof is present embodiments provided, including：
By weight percentage, assorted fibre 30% is weighed, flyash 30%, cashew nut oil modified alkyd resin 13%,
Nitrile rubber 4%, ice crystal 5%, molybdenum disulfide 3%, graphite 6%, ferroso-ferric oxide 4%, copper powder 5%.Assorted fibre includes
Mass ratio is 4:1 alumina fibre and Zirconium oxide fibre.
Each component materials are weighed by above-mentioned weight ratio, using cold moudling-hot-press solidifying two-step method, including：
Load weighted each material is put into cone tank batch mixer, batch mixing 4min；The mixture weighed is poured into cold stamping die
In, pressure 145MPa, dwell time 14s；Sample after cold pressing is put into hot-die, temperature is 160 DEG C, pressure is
Under conditions of 50MPa, pressurize 12min deflates 11 times；Ceramic-based friction material sample after solidification is put into heat-treatment furnace,
3h is kept the temperature under conditions of 170 DEG C, 210 DEG C is warming up to the heating rate of 5 DEG C/min, keeps the temperature 4h.
Comparative example 1
This comparative example provides a kind of assorted fibre enhancing ceramic-based friction material and preparation method thereof, including：
By weight percentage, glass fibre 45%, assorted fibre 10%, cashew nut oil modified alkyd resin are weighed
20%, ice crystal 8%, graphite 10%, copper powder 7%.Assorted fibre includes that mass ratio is 2:1 alumina fibre and zirconium oxide is fine
Dimension.
Each component materials are weighed by above-mentioned weight ratio, prepared by the preparation method provided using embodiment 1.
Comparative example 2
This comparative example provides a kind of assorted fibre enhancing ceramic-based friction material and preparation method thereof, including：
By weight percentage, it weighs by weight percentage, weighs alumina fibre 15%, glass fibre 45%, powder
Coal ash 10%, nitrile rubber 7%, ice crystal 1%, molybdenum disulfide 2%, graphite 12%, copper powder 8%.
Each component materials are weighed by above-mentioned weight ratio, prepared by the preparation method provided using embodiment 2.
According to national standard GB5763-2008, the assorted fibre enhancing ceramic-based friction material that provide Examples 1 to 5 and right
The friction material that ratio 1~2 provides carries out fixed speed fricting test, and the results are shown in Table 1 for acquisition.
1 assorted fibre of table enhances ceramic-based friction material fixed speed fricting test result
As it can be seen from table 1 compared to comparative example 1~2, assorted fibre prepared by Examples 1 to 5 enhances ceramic base friction
Material uses assorted fibre and flyash as raw material, under the action of binder, anti-wear agent and lubricant, formation high temperature resistant,
The Co-crosslinked System of high tenacity so that assorted fibre obtained enhancing ceramic-based friction material friction coefficient at high temperature, mill
Loss rate stability is preferable, without apparent heat fading phenomenon, complies with the national standard requirements.The brake pad surface obtained after experiment is complete
Whole, flawless has the characteristics that abrasion is small, noiseless.Illustrate assorted fibre enhancing ceramic-based friction material provided by the invention
Preparation method it is more scientific and reasonable, the component and dosage of raw material are more scientific and reasonable.
Embodiments described above is a part of the embodiment of the present invention, instead of all the embodiments.The reality of the present invention
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Claims (10)
1. a kind of assorted fibre enhances ceramic-based friction material, which is characterized in that by weight percentage, fibre is mixed described in preparation
Dimension enhancing ceramic-based friction material raw material include：Assorted fibre 10~30%, flyash 30~55%, binder 8~23%,
Anti-wear agent 13~32% and lubricant 6~17%, the assorted fibre include alumina fibre and Zirconium oxide fibre.
2. assorted fibre according to claim 1 enhances ceramic-based friction material, which is characterized in that the raw material includes：
The assorted fibre 15~25%, the flyash 35~50%, the binder 10~20%, the anti-wear agent 15~30%
And the lubricant 10~15%.
3. assorted fibre according to claim 1 enhances ceramic-based friction material, which is characterized in that the alumina fibre
Mass ratio with the Zirconium oxide fibre is 1~5:1.
4. assorted fibre according to claim 1 enhances ceramic-based friction material, which is characterized in that the binder includes
At least one of phenolic resin, nitrile rubber, benzoxazine colophony, epoxy resin.
5. assorted fibre according to claim 4 enhances ceramic-based friction material, which is characterized in that the anti-wear agent includes
At least one of ice crystal, ferroso-ferric oxide and copper powder, it is preferable that the lubricant includes in molybdenum disulfide and graphite
It is at least one.
6. assorted fibre according to claim 5 enhances ceramic-based friction material, which is characterized in that the raw material includes：
The assorted fibre 10~30%, the flyash 30~55%, the phenolic resin 5~15%, the nitrile rubber 3~
8%, the ice crystal 5~10%, the molybdenum disulfide 1~5%, the graphite 5~12%, the ferroso-ferric oxide 5~
12% and the copper powder 3~10%.
7. a kind of preparation method enhancing ceramic-based friction material such as claim 1 to 6 any one of them assorted fibre, special
Sign is, including：The batch mixing of the raw material is subjected to cold moudling and hot-press solidifying, then cured material will be passed through and carry out hot place
Reason.
8. assorted fibre according to claim 7 enhances ceramic-based friction material, which is characterized in that the method for hot-press solidifying
Including：The cured batch mixing of cold pressing will be passed through to be placed in hot-die, carried out under conditions of 155~165 DEG C, 30~50MPa
Pressurize, the thickness for enhancing ceramic-based friction material during pressurize according to the assorted fibre are deflated, it is preferable that every time
Deflation time is 60s/mm, and deflation number is 8~12 times.
9. the preparation method of assorted fibre enhancing ceramic-based friction material according to claim 7, which is characterized in that at heat
The method of reason includes：The batch mixing after solidification is kept the temperature into 3~5h under conditions of 150~170 DEG C, with 3~5 DEG C/min
Heating rate rise to 200~220 DEG C after, keep the temperature 3~5h.
10. as claim 1 to 6 any one of them assorted fibre enhances ceramic-based friction material answering in terms of automobile making
With.
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