CN106907414B - Automotive disc brake non-metallic friction materials and its application - Google Patents
Automotive disc brake non-metallic friction materials and its application Download PDFInfo
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- CN106907414B CN106907414B CN201710108496.8A CN201710108496A CN106907414B CN 106907414 B CN106907414 B CN 106907414B CN 201710108496 A CN201710108496 A CN 201710108496A CN 106907414 B CN106907414 B CN 106907414B
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- 239000002783 friction material Substances 0.000 title claims abstract description 59
- 239000000463 material Substances 0.000 claims abstract description 41
- 239000000843 powder Substances 0.000 claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 22
- 239000000945 filler Substances 0.000 claims abstract description 14
- 238000002360 preparation method Methods 0.000 claims abstract description 14
- IKRMZAOEXULJQX-UHFFFAOYSA-N calcium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Ca+2].O1B([O-])OB2OB([O-])OB1O2 IKRMZAOEXULJQX-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052976 metal sulfide Inorganic materials 0.000 claims abstract description 12
- 239000010455 vermiculite Substances 0.000 claims abstract description 12
- 229910052902 vermiculite Inorganic materials 0.000 claims abstract description 12
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 11
- 239000011707 mineral Substances 0.000 claims abstract description 11
- 239000000454 talc Substances 0.000 claims abstract description 11
- 229910052623 talc Inorganic materials 0.000 claims abstract description 11
- 238000005303 weighing Methods 0.000 claims abstract description 11
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003831 antifriction material Substances 0.000 claims abstract description 7
- 239000007767 bonding agent Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 33
- 239000000047 product Substances 0.000 claims description 21
- 239000002994 raw material Substances 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 17
- 239000006227 byproduct Substances 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 10
- 238000000748 compression moulding Methods 0.000 claims description 10
- 239000010439 graphite Substances 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- 229920006231 aramid fiber Polymers 0.000 claims description 9
- 239000006229 carbon black Substances 0.000 claims description 9
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical group [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 7
- 244000043261 Hevea brasiliensis Species 0.000 claims description 7
- 229920003052 natural elastomer Polymers 0.000 claims description 7
- 229920001194 natural rubber Polymers 0.000 claims description 7
- 229920001568 phenolic resin Polymers 0.000 claims description 7
- -1 polypropylene Polymers 0.000 claims description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- 239000010410 layer Substances 0.000 claims description 5
- 239000005011 phenolic resin Substances 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 229920000877 Melamine resin Polymers 0.000 claims description 2
- 239000004640 Melamine resin Substances 0.000 claims description 2
- 229920000459 Nitrile rubber Polymers 0.000 claims description 2
- 244000044283 Toxicodendron succedaneum Species 0.000 claims description 2
- 239000012790 adhesive layer Substances 0.000 claims description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims 1
- 238000005562 fading Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 30
- 125000006850 spacer group Chemical group 0.000 description 9
- 239000010425 asbestos Substances 0.000 description 5
- 229910052895 riebeckite Inorganic materials 0.000 description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- HBGPNLPABVUVKZ-POTXQNELSA-N (1r,3as,4s,5ar,5br,7r,7ar,11ar,11br,13as,13br)-4,7-dihydroxy-3a,5a,5b,8,8,11a-hexamethyl-1-prop-1-en-2-yl-2,3,4,5,6,7,7a,10,11,11b,12,13,13a,13b-tetradecahydro-1h-cyclopenta[a]chrysen-9-one Chemical compound C([C@@]12C)CC(=O)C(C)(C)[C@@H]1[C@H](O)C[C@]([C@]1(C)C[C@@H]3O)(C)[C@@H]2CC[C@H]1[C@@H]1[C@]3(C)CC[C@H]1C(=C)C HBGPNLPABVUVKZ-POTXQNELSA-N 0.000 description 1
- PFRGGOIBYLYVKM-UHFFFAOYSA-N 15alpha-hydroxylup-20(29)-en-3-one Natural products CC(=C)C1CCC2(C)CC(O)C3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 PFRGGOIBYLYVKM-UHFFFAOYSA-N 0.000 description 1
- SOKRNBGSNZXYIO-UHFFFAOYSA-N Resinone Natural products CC(=C)C1CCC2(C)C(O)CC3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 SOKRNBGSNZXYIO-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004073 vulcanization Methods 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
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/025—Compositions based on an organic binder
-
- 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
- F16D2200/0086—Moulding materials together by application of heat and pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention relates to friction materials technology field, a kind of automotive disc brake non-metallic friction materials and its preparation method and application is disclosed, which presses mass fraction, is made of following proportioning：Bonding agent 7%~10%；Mineral fibres 15%~25%；Inorfil 6%~10%；Organic fiber 1.5%~5%；Calcium pyroborate 6%~15%；Filler material 12%~20%；Frication powder 3%~5%；Vermiculite power 6%~8%；Carbonaceous antifriction material 15%~26%；Metal sulfide 6%~15%；Tyre talc 2%~5%；Molybdenum sulfide 1%~4%.A kind of method preparing the friction material is also disclosed, this method obtains friction material by the heat treatment process after weighing, batch mixing, forming processing and forming.There is higher coefficient of friction by this, compared with low wear rate, the friction material of heat fading function admirable, which has been prepared into, a kind of having the brake block that braking moment is big, emergency braking is comfortable, braking distance is short, heat fading is minimum.
Description
(1) technical field
The present invention relates to friction materials technology fields, more particularly to a kind of automotive disc brake non-metallic friction material
Material and its preparation method and application.
(2) background technology
Friction material is in automobile or engineering machinery, to frictional drive or a kind of functional material of mill resistance braking, root
According to its working environment, dry type and wet type two major classes can be divided into.Automotive disc brake of the present invention non-metallic friction material
Material belongs to the scope of Dry Friction Materials.
Dry Friction Materials be typically by the constituent elements such as reinforcing fiber-frictional property regulator (filler) with bonding agent be bonded and
At multi-element composite material, development according to the difference of main reinforcement fibres used experienced following several stages：
(1) asbestos type：The content of asbestos fibre is mainly shown as 30% or more, since asbestos are considered as carcinogenic substance
Matter forces to eliminate before and after last century the nineties.
(2) semipermanent mold：With artificial steel fibre (content is 30% or more) be main reinforcement fibres, be the first generation without asbestos
Friction material is still widely used for making various automotive discs or drum brake lining of city at present.
(3) without organic (NAO) type of asbestos：It is with fire resistant organic fibres such as aramid fiber (polyterephthalamide), carbon fibers
Main reinforcement fibres, preferably improve that brake noise existing for semipermanent mold friction material is big, damage friction pair, easily gets rusty
The defects of.But it is at high price as the fire resistant organic fibre of representative using aramid fiber, therefore NAO type friction material costs are higher, so far not
Preferable promote is obtained in automobile market.
(4) ceramic base：The part organic fiber in NAO formulas is replaced with a large amount of cheap ceramic fibres, it is preferable to solve
The cost problem of NAO type friction materials, but be still inferior to typical NAO types in friction coefficient, thermal stability etc. and rub
Wipe material.
Therefore, for cheap ceramic-based friction material easy to spread, need one kind that can improve its friction coefficient,
Friction material with good character of heat-fading energy.
(3) invention content
The technical problem to be solved in the present invention is to provide one kind, and there is higher friction coefficient, lower wear rate, heat to decline
Move back the automotive disc brake non-metallic friction materials and preparation method thereof of function admirable.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of automotive disc brake non-metallic friction materials, the friction material is according to mass fraction meter, by matching below
Than composition：Bonding agent 7%~10%；Mineral fibres 15%~25%；Inorfil 6%~10%；Organic fiber 1.5%~
5%；Calcium pyroborate 6%~15%；Filler material 12%~20%；Frication powder 3%~5%；Vermiculite power 6%~8%；Carbonaceous antifriction material
Material 15%~26%；Metal sulfide 6%~15%；Tyre talc 2%~5%；Molybdenum sulfide 1%~4%.
In a preferred embodiment of the invention, the inorfil be glass fibre, one kind in ceramic fibre or
It is several.
In a preferred embodiment of the invention, the organic fiber is in aramid fiber, carbon fiber, polypropylene fibre
One or more.
In a preferred embodiment of the invention, the carbonaceous antifriction material is one kind in graphite, coke powder, carbon black
Or it is several.
In a preferred embodiment of the invention, the bonding agent is phenolic resin, melmac, asphalt mixtures modified by epoxy resin
One or more of fat, melamine resin, phenol-formaldehyde resin modified, lacquer tree resin, natural rubber, butadiene-styrene rubber, nitrile rubber.
The invention also discloses a kind of preparation method based on above-mentioned automotive disc brake non-metallic friction materials, packets
Include following steps：
(1) after weighing raw material according to proportioning, the raw material of proportioning is uniformly mixed with dry mix machine, obtain mixture,
It stores for future use；
(2) after the mixture of gained in step (1) being weighed, loading is preheated in 150~170 DEG C of mold, 10~
It pressurizes under the pressure of 16Mpa after pressurize 3 seconds, pressure release exhaust, each pressure release is vented 3 seconds, for a cycle, is recycled 5 times；Again 10
Pressurization pressurize 300-500 seconds, obtain the product of compression moulding under the pressure of~16Mpa；Then 8~12 are kept the temperature at 190 ± 5 DEG C
Hour, after being cooled to room temperature, according to technological requirement by product plain grinding to required thickness, in product surface spray coating electrostatic molding powder,
Keep the temperature 50 minutes at 180 ± 5 DEG C to get.
The invention also discloses a kind of brake block, including base material, adhesive layer and frictional layer, the frictional layer is above-mentioned by being based on
Automotive disc brake be made of non-metallic friction materials.
Compared with prior art, beneficial effects of the present invention are as follows：
The present invention, as antifriction material base material, plays raising material using metal sulfide, carbonaceous antifriction material, molybdenum sulfide
Wear resistance, reduce noise and reduce friction coefficient effect；It is rubbed as increase with multiple fiber and calcium pyroborate, Frication powder
The friction component of coefficient, play the role of improve material friction coefficient, while also have adjust material thermal stability and its
The function of job stability；Tyre talc, vermiculite power and filler material play the role of reinforcing agent, heat stabilizer as filler, you can
So that friction coefficient is stablized in different environments using holding, and friction coefficient-temperature number of tracks and friction coefficient-speed can be made
Curve held stationary.By organically combining these materials under the action of bonding agent by certain proportioning, obtain
A kind of have a higher friction coefficient, lower wear rate, and the automotive disc brake of heat fading function admirable is with nonmetallic
Friction material.Friction material obtained is detected according to the standard of GB 5763-2008 brake spacer for automobile, is rubbed
It wipes coefficient and reaches 0.35~0.49, the low wear rate of friction material at normal temperatures is in 2.5*10-8cm3/ J, in 350 DEG C of test temperature
Under degree, wear rate is also below 2.9*10-8cm3/ J has excellent character of heat-fading energy.
Meanwhile according to the physico-chemical property between each substance, the technological parameter in preparation method is adjusted, is obtained
One group of preferable technological parameter composition for being used to prepare above-mentioned friction material.
According to the characteristic of this friction material, it is prepared for a kind of automotive brake pads with excellent performance, by this brake
Piece is applied to the friction catch on braking device for vehicle, and the wear-resisting property of brake device for car is greatly improved, meanwhile,
Brake block has braking moment increase, the feature that emergency braking is comfortable, braking distance is short, heat fading is minimum, also to a certain degree
On reduce noise pollution, improve the overall performance of brake system of car.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
(4) specific implementation mode
In order to clarify the technical characteristics of the invention, below by specific implementation mode, the present invention is explained in detail
It states.
Embodiment 1：
A kind of automotive disc brake non-metallic friction materials, the friction material is according to mass fraction meter, by matching below
Than composition：8 parts of phenolic resin；20 parts of mineral fibres；2 parts of carbon fiber；2 parts of aramid fiber；10 parts of ceramic fibre；6 parts of calcium pyroborate；
12 parts of barium sulfate；3 parts of Frication powder；6 parts of vermiculite power；11 parts of graphite；3 parts of coke powder；1 part of carbon black；8 parts of metal sulfide；Tire
4 parts of powder；4 parts of molybdenum sulfide.
Wherein barium sulfate is used as filler material.
Preparation method is as follows：
(1) after weighing raw material successively according to said ratio, raw material is uniformly mixed with dry mix machine, must be mixed
Material, stores for future use；
(2) after the mixture of gained in step (1) being weighed, loading is preheated in 160 ± 5 DEG C of mold, 15Mpa's
It pressurizes under pressure after pressurize 3 seconds, pressure release exhaust, each pressure release is vented 3 seconds, for a cycle, is recycled 5 times；Again in the pressure of 15Mpa
Pressurization pressurize 300 seconds, obtain the product of compression moulding under power；Then 8 hours are kept the temperature at 190 ± 5 DEG C, after being cooled to room temperature,
According to technological requirement by product plain grinding to required thickness, in product surface spray coating electrostatic molding powder, 50 points are kept the temperature at 180 ± 5 DEG C
Clock to get.
Friction material obtained is detected according to the standard of GB 5763-2008 brake spacer for automobile, performance
As shown in table 1：
1 embodiment of table, 1 material characteristic data
The shear strength measured is：6.4MPa.
Embodiment 2：
A kind of automotive disc brake non-metallic friction materials, the friction material is according to mass fraction meter, by matching below
Than composition：7 parts of phenolic resin；25 parts of mineral fibres；1.5 parts of polypropylene fibre；Ceramic fibre 6.5；10 parts of calcium pyroborate；Sulfuric acid
12 parts of barium；3 parts of Frication powder；8 parts of vermiculite power；11 parts of graphite；1 part of carbon black；11 parts of metal sulfide；2 parts of tyre talc；Molybdenum sulfide 2
Part.
Wherein barium sulfate is used as filler material.
Preparation method is as follows：
(1) after weighing raw material successively according to said ratio, raw material is uniformly mixed with dry mix machine, must be mixed
Material, stores for future use；
(2) after the mixture of gained in step (1) being weighed, loading is preheated in 160 ± 5 DEG C of mold, 15Mpa's
It pressurizes under pressure after pressurize 3 seconds, pressure release exhaust, each pressure release is vented 3 seconds, for a cycle, is recycled 5 times；Again in the pressure of 15Mpa
Pressurization pressurize 350 seconds, obtain the product of compression moulding under power；Then 10 hours are kept the temperature at 190 ± 5 DEG C, after being cooled to room temperature,
According to technological requirement by product plain grinding to required thickness, in product surface spray coating electrostatic molding powder, 50 points are kept the temperature at 180 ± 5 DEG C
Clock to get.
Friction material obtained is detected according to the standard of GB 5763-2008 brake spacer for automobile, performance
As shown in table 2：
2 embodiment of table, 2 material characteristic data
The shear strength measured is：6.23MPa.
Embodiment 3：
A kind of automotive disc brake non-metallic friction materials, the friction material is according to mass fraction meter, by matching below
Than composition：7 parts of natural rubber；18 parts of mineral fibres；5 parts of aramid fiber；7 parts of glass fibre；6 parts of calcium pyroborate；12 parts of barium sulfate；
3 parts of Frication powder；6 parts of vermiculite power；11 parts of graphite；5 parts of coke powder；1 part of carbon black；11 parts of metal sulfide；4 parts of tyre talc；Vulcanization
4 parts of molybdenum.
Wherein barium sulfate is used as filler material.
Preparation method is as follows：
(1) after weighing raw material successively according to said ratio, raw material is uniformly mixed with dry mix machine, must be mixed
Material, stores for future use；
(2) after the mixture of gained in step (1) being weighed, loading is preheated in 160 ± 5 DEG C of mold, 15Mpa's
It pressurizes under pressure after pressurize 3 seconds, pressure release exhaust, each pressure release is vented 3 seconds, for a cycle, is recycled 5 times；Again in the pressure of 15Mpa
Pressurization pressurize 300 seconds, obtain the product of compression moulding under power；Then 12 hours are kept the temperature at 190 ± 5 DEG C, after being cooled to room temperature,
According to technological requirement by product plain grinding to required thickness, in product surface spray coating electrostatic molding powder, 50 points are kept the temperature at 180 ± 5 DEG C
Clock to get.
Friction material obtained is detected according to the standard of GB 5763-2008 brake spacer for automobile, performance
As shown in table 3：
3 embodiment of table, 3 material characteristic data
The shear strength measured is：6.25MPa.
Embodiment 4：
A kind of automotive disc brake non-metallic friction materials, the friction material is according to mass fraction meter, by matching below
Than composition：10 parts of natural rubber；15 parts of mineral fibres；2 parts of polypropylene fibre；3 parts of carbon fiber；Ceramic fibre 8；Calcium pyroborate 7
Part；16 parts of barium sulfate；5 parts of Frication powder；6 parts of vermiculite power；15 parts of graphite；4 parts of carbon black；6 parts of metal sulfide；2 parts of tyre talc；
1 part of molybdenum sulfide.
Wherein barium sulfate is used as filler material.
Preparation method is as follows：
(1) after weighing raw material successively according to said ratio, raw material is uniformly mixed with dry mix machine, must be mixed
Material, stores for future use；
(2) after the mixture of gained in step (1) being weighed, loading is preheated in 160 ± 5 DEG C of mold, 15Mpa's
It pressurizes under pressure after pressurize 3 seconds, pressure release exhaust, each pressure release is vented 3 seconds, for a cycle, is recycled 5 times；Again in the pressure of 15Mpa
Pressurization pressurize 450 seconds, obtain the product of compression moulding under power；Then 10 hours are kept the temperature at 190 ± 5 DEG C, after being cooled to room temperature,
According to technological requirement by product plain grinding to required thickness, in product surface spray coating electrostatic molding powder, 50 points are kept the temperature at 180 ± 5 DEG C
Clock to get.
Friction material obtained is detected according to the standard of GB 5763-2008 brake spacer for automobile, performance
As shown in table 4：
4 embodiment of table, 4 material characteristic data
The shear strength measured is：6.5MPa.
Embodiment 5：
A kind of automotive disc brake non-metallic friction materials, the friction material is according to mass fraction meter, by matching below
Than composition：8 parts of natural rubber；18 parts of mineral fibres；5 parts of aramid fiber；10 parts of ceramic fibre；6 parts of calcium pyroborate；Barium sulfate 12
Part；5 parts of Frication powder；8 parts of vermiculite power；15 parts of graphite；3 parts of coke powder；1 part of carbon black；6 parts of metal sulfide；2 parts of tyre talc；Sulphur
Change 1 part of molybdenum.
Wherein barium sulfate is used as filler material.
Preparation method is as follows：
(1) after weighing raw material successively according to said ratio, raw material is uniformly mixed with dry mix machine, must be mixed
Material, stores for future use；
(2) after the mixture of gained in step (1) being weighed, loading is preheated in 160 ± 5 DEG C of mold, 15Mpa's
It pressurizes under pressure after pressurize 3 seconds, pressure release exhaust, each pressure release is vented 3 seconds, for a cycle, is recycled 5 times；Again in the pressure of 15Mpa
Pressurization pressurize 500 seconds, obtain the product of compression moulding under power；Then 12 hours are kept the temperature at 190 ± 5 DEG C, after being cooled to room temperature,
According to technological requirement by product plain grinding to required thickness, in product surface spray coating electrostatic molding powder, 50 points are kept the temperature at 180 ± 5 DEG C
Clock to get.
Friction material obtained is detected according to the standard of GB 5763-2008 brake spacer for automobile, performance
As shown in table 5：
5 embodiment of table, 5 material characteristic data
The shear strength measured is：6.82MPa.
Embodiment 6：
A kind of automotive disc brake non-metallic friction materials, the friction material is according to mass fraction meter, by matching below
Than composition：8 parts of natural rubber；15 parts of mineral fibres；2 parts of aramid fiber；8 parts of glass fibre；15 parts of calcium pyroborate；Barium sulfate 12
Part；4 parts of Frication powder；6 parts of vermiculite power；12 parts of graphite；5 parts of coke powder；10 parts of metal sulfide；2 parts of tyre talc；Molybdenum sulfide 1
Part.
Wherein barium sulfate is used as filler material.
Preparation method is as follows：
(1) after weighing raw material successively according to said ratio, raw material is uniformly mixed with dry mix machine, must be mixed
Material, stores for future use；
(2) after the mixture of gained in step (1) being weighed, loading is preheated in 160 ± 5 DEG C of mold, 15Mpa's
It pressurizes under pressure after pressurize 3 seconds, pressure release exhaust, each pressure release is vented 3 seconds, for a cycle, is recycled 5 times；Again in the pressure of 15Mpa
Pressurization pressurize 450 seconds, obtain the product of compression moulding under power；Then 12 hours are kept the temperature at 190 ± 5 DEG C, after being cooled to room temperature,
According to technological requirement by product plain grinding to required thickness, in product surface spray coating electrostatic molding powder, 50 points are kept the temperature at 180 ± 5 DEG C
Clock to get.
Friction material obtained is detected according to the standard of GB 5763-2008 brake spacer for automobile, performance
As shown in table 6：
6 embodiment of table, 6 material characteristic data
The shear strength measured is：6.18MPa.
Embodiment 7：
A kind of automotive disc brake non-metallic friction materials, the friction material is according to mass fraction meter, by matching below
Than composition：10 parts of phenolic resin；16 parts of mineral fibres；5 parts of polypropylene fibre；Glass fibre 10；8 parts of calcium pyroborate；Barium sulfate 12
Part；3.5 parts of Frication powder；6.5 parts of vermiculite power；13 parts of graphite；2 parts of carbon black；10 parts of metal sulfide；2 parts of tyre talc；Molybdenum sulfide 2
Part.
Wherein barium sulfate is used as filler material.
Preparation method is as follows：
(1) after weighing raw material successively according to said ratio, raw material is uniformly mixed with dry mix machine, must be mixed
Material, stores for future use；
(2) after the mixture of gained in step (1) being weighed, loading is preheated in 160 ± 5 DEG C of mold, 15Mpa's
It pressurizes under pressure after pressurize 3 seconds, pressure release exhaust, each pressure release is vented 3 seconds, for a cycle, is recycled 5 times；Again in the pressure of 15Mpa
Pressurization pressurize 300 seconds, obtain the product of compression moulding under power；Then 12 hours are kept the temperature at 190 ± 5 DEG C, after being cooled to room temperature,
According to technological requirement by product plain grinding to required thickness, in product surface spray coating electrostatic molding powder, 50 points are kept the temperature at 180 ± 5 DEG C
Clock to get.
Friction material obtained is detected according to the standard of GB 5763-2008 brake spacer for automobile, performance
As shown in table 7：
7 embodiment of table, 7 material characteristic data
The shear strength measured is：6.2MPa.
Embodiment 8：
A kind of automotive disc brake non-metallic friction materials, the friction material is according to mass fraction meter, by matching below
Than composition：10 parts of natural rubber；18 parts of mineral fibres；5 parts of aramid fiber；8 parts of ceramic fibre；12 parts of calcium pyroborate；Barium sulfate 12
Part；5 parts of Frication powder；6 parts of vermiculite power；11 parts of graphite；3 parts of coke powder；1 part of carbon black；6 parts of metal sulfide；2 parts of tyre talc；Sulphur
Change 1 part of molybdenum.
Wherein barium sulfate is used as filler material.
Preparation method is as follows：
(1) after weighing raw material successively according to said ratio, raw material is uniformly mixed with dry mix machine, must be mixed
Material, stores for future use；
(2) after the mixture of gained in step (1) being weighed, loading is preheated in 160 ± 5 DEG C of mold, 15Mpa's
It pressurizes under pressure after pressurize 3 seconds, pressure release exhaust, each pressure release is vented 3 seconds, for a cycle, is recycled 5 times；Again in the pressure of 15Mpa
Pressurization pressurize 500 seconds, obtain the product of compression moulding under power；Then 8 hours are kept the temperature at 190 ± 5 DEG C, after being cooled to room temperature,
According to technological requirement by product plain grinding to required thickness, in product surface spray coating electrostatic molding powder, 50 points are kept the temperature at 180 ± 5 DEG C
Clock to get.
Friction material obtained is detected according to the standard of GB 5763-2008 brake spacer for automobile, performance
As shown in table 8：
8 embodiment of table, 8 material characteristic data
The shear strength measured is：6.75MPa.
It can to sum up obtain, the automotive disc brake of present invention gained has higher friction coefficient with non-metallic friction materials
And excellent character of heat-fading energy, wear rate at different temperatures are relatively low.Using the friction material as friction layer material system
Brake block has the characteristics that braking moment is big, emergency braking is comfortable, braking distance is short, heat fading is minimum, Er Qieneng made of standby
Reduce noise pollution to a certain extent, improves the overall performance of brake system of car.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.Place is not described in detail by the present invention,
For the known technology of those skilled in the art of the present technique.
Claims (2)
1. a kind of automotive disc brake non-metallic friction materials, which is characterized in that the friction material according to mass fraction meter,
It is made of following proportioning：
Bonding agent 7%~10%；
Mineral fibres 15%~25%；
Inorfil 6%~10%；
Organic fiber 1.5%~5%；
Calcium pyroborate 6%~15%；
Filler material 12%~20%；
Frication powder 3%~5%；
Vermiculite power 6%~8%；
Carbonaceous antifriction material 15%~26%；
Metal sulfide 6%~15%；
Tyre talc 2%~5%；
Molybdenum sulfide 1%~4%；
The inorfil is one or more of glass fibre, ceramic fibre；
The organic fiber is one or more of aramid fiber, carbon fiber, polypropylene fibre；
The carbonaceous antifriction material is one or more of graphite, coke powder, carbon black；
The bonding agent is phenolic resin, melmac, epoxy resin, melamine resin, phenol-formaldehyde resin modified, lacquer tree tree
One or more of fat, natural rubber, butadiene-styrene rubber, nitrile rubber；
The preparation method of above-mentioned automotive disc brake non-metallic friction materials, includes the following steps：
(1) after weighing raw material according to proportioning, the raw material of proportioning is uniformly mixed with dry mix machine, obtain mixture, stored
It is spare；
(2) after the mixture of gained in step (1) being weighed, loading is preheated in 150~170 DEG C of mold, in 10~16Mpa
Pressure under after pressurization pressurize 3 seconds, pressure release exhaust, each pressure release is vented 3 seconds, for a cycle, is recycled 5 times；Again 10~
Pressurization pressurize 300-500 seconds, obtain the product of compression moulding under the pressure of 16Mpa；Then heat preservation 8~12 is small at 190 ± 5 DEG C
When, after being cooled to room temperature, according to technological requirement by product plain grinding to required thickness, in product surface spray coating electrostatic molding powder, 180
Keep the temperature 50 minutes at ± 5 DEG C to get.
2. a kind of brake block, including base material, adhesive layer and frictional layer, which is characterized in that the frictional layer is described in claim 1
Automotive disc brake be made of non-metallic friction materials.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109630577A (en) * | 2019-01-04 | 2019-04-16 | 上海华信摩擦材料有限公司 | A kind of Friction material for auto brake pad and preparation method thereof |
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| CN107504106A (en) * | 2017-07-12 | 2017-12-22 | 苏州翠南电子科技有限公司 | One kind is without asbestos low metal automotive friction material |
| CN108034198A (en) * | 2017-12-29 | 2018-05-15 | 重庆全茂合渝科技有限公司 | A kind of motorcycle brake friction plate and its preparation process |
| CN109723742A (en) * | 2019-02-11 | 2019-05-07 | 兰州城市学院 | A kind of non-metallic automotive brake block and preparation method thereof |
| CN112981596A (en) * | 2019-12-17 | 2021-06-18 | 江苏恒源康盛高科新材料有限公司 | Resin type rubber plastic fibril and production process thereof |
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| CN102191016B (en) * | 2011-05-21 | 2014-04-30 | 瑞阳汽车零部件（仙桃）有限公司 | Copper-free friction material composition for brake pads |
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| CN101555399A (en) * | 2009-05-20 | 2009-10-14 | 山东大王信义载重汽车配件有限公司 | Novel brake pad material of truck |
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