CN108506387A - A kind of brake pad and preparation method thereof, brake block - Google Patents
A kind of brake pad and preparation method thereof, brake block Download PDFInfo
- Publication number
- CN108506387A CN108506387A CN201810271407.6A CN201810271407A CN108506387A CN 108506387 A CN108506387 A CN 108506387A CN 201810271407 A CN201810271407 A CN 201810271407A CN 108506387 A CN108506387 A CN 108506387A
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- Prior art keywords
- brake pad
- phenolic resin
- brake
- temperature
- modified phenolic
- Prior art date
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- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 239000000835 fiber Substances 0.000 claims abstract description 38
- -1 boron modified phenolic resin Chemical class 0.000 claims abstract description 37
- 229920005610 lignin Polymers 0.000 claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 30
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 29
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229960005191 ferric oxide Drugs 0.000 claims abstract description 23
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 20
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 19
- 229910052796 boron Inorganic materials 0.000 claims abstract description 19
- 239000005011 phenolic resin Substances 0.000 claims abstract description 19
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 17
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 16
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 14
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims abstract description 11
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 9
- 239000010439 graphite Substances 0.000 claims abstract description 9
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 9
- 239000010456 wollastonite Substances 0.000 claims abstract description 9
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 9
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 8
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 8
- 229910052902 vermiculite Inorganic materials 0.000 claims abstract description 8
- 239000010455 vermiculite Substances 0.000 claims abstract description 8
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 8
- 239000006238 High Abrasion Furnace Substances 0.000 claims abstract description 7
- 239000013078 crystal Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 35
- 238000002156 mixing Methods 0.000 claims description 29
- 238000007731 hot pressing Methods 0.000 claims description 24
- 238000012545 processing Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- LCDFWRDNEPDQBV-UHFFFAOYSA-N formaldehyde;phenol;urea Chemical compound O=C.NC(N)=O.OC1=CC=CC=C1 LCDFWRDNEPDQBV-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 239000004615 ingredient Substances 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 238000005728 strengthening Methods 0.000 abstract description 2
- 238000007792 addition Methods 0.000 description 6
- 239000002783 friction material Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- XUBKPYAWPSXPDZ-UHFFFAOYSA-N [Ba].OS(O)(=O)=O Chemical compound [Ba].OS(O)(=O)=O XUBKPYAWPSXPDZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 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 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- RCHKEJKUUXXBSM-UHFFFAOYSA-N n-benzyl-2-(3-formylindol-1-yl)acetamide Chemical compound C12=CC=CC=C2C(C=O)=CN1CC(=O)NCC1=CC=CC=C1 RCHKEJKUUXXBSM-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/149—Antislip compositions
-
- 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
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0082—Production methods therefor
- F16D2200/0086—Moulding materials together by application of heat and pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Braking Arrangements (AREA)
Abstract
This application provides the brake pads in a kind of brake block, are made of following raw materials according：Phenolic resin or boron modified phenolic resin or melamine modified phenolic resin, acrylonitrile-butadiene rubber powder, lignin fibre, activated carbon, expansible graphite, molybdenum disulfide, barium sulfate, calcium carbonate, calcium sulfate crystal whiskers, iron oxide yellow, aluminium oxide, ferric oxide red powder, silicon carbide, wollastonite, vermiculite power and high abrasion furnace black；Present invention also provides a kind of preparation methods of the brake pad based on said components formula；The application has carried out ingredient reinforcing and process strengthening to brake pad, ingredient, which strengthens combined process reinforcing, realizes combination among the strong ones, what it is to improve the brake pad in brake block includes friction coefficient, hardness, wear-resisting property, tough, comprehensive performance including heat conductivility, high temperature resistance and corrosion resistance, to meet the requirement under high load, high temperature, high speed and high corrosion environment.Present invention also provides a kind of brake blocks including above-mentioned brake pad.
Description
Technical field
The present invention relates to friction materials technology fields, more particularly, to a kind of brake pad and preparation method thereof, brake block.
Background technology
With the fast development of China's economy and auto industry, automobile has driven more and more families into, and China's automobile is protected
The amount of having has also exceeded 300,000,000 and is still constantly increasing.The quality of brake piece performance directly influences the peace of automobile and passenger
Entirely, with socio-economic development and scientific and technological progress, tightened up requirement is proposed to the performance of automobile brake brake block.
Now common brake pad material mainly has semimetal friction material and NAO friction materials, wherein semimetal to rub
It wipes material brake piece to will produce heavy metal in use and have larger brake noise, bad shadow is generated to health of people
It rings；NAO friction materials mainly use aramid fiber, carbon fiber, ceramic fibre, mineral fibres etc. as reinforcing fiber, but due to
The problems such as processing technology is complicated difficult and of high cost, China is dependent on greatly import to meet domestic demand.
Therefore, how to improve the brake pad in brake block include friction coefficient, hardness, wear-resisting property, tough,
Comprehensive performance including heat conductivility, high temperature resistance and corrosion resistance, it is rotten to meet high load, high temperature, high speed and height
Lose the requirement under environment, the requirement for meeting socio-economic development and scientific and technological progress be current those skilled in the art there is an urgent need for
The technical issues of solution.
Invention content
The object of the present invention is to provide the brake pads in a kind of brake block.Another object of the present invention is to provide one kind
The preparation method of brake pad in brake block.Another object of the present invention is to provide a kind of brake block.
In order to solve the above technical problems, technical solution provided by the invention is：
A kind of brake pad in brake block, is made of the raw material of following masses percentage：8%~9% phenolic resin or
Boron modified phenolic resin or melamine modified phenolic resin, 4%~6% acrylonitrile-butadiene rubber powder, 8%~12% lignin are fine
Dimension, 2%~5% activated carbon, 6%~8% expansible graphite, 2%~4% molybdenum disulfide, 18%~23% sulfuric acid
Barium, 4%~7% calcium carbonate, 2%~3% calcium sulfate crystal whiskers, 3%~4% iron oxide yellow, 1%~2% aluminium oxide,
3%~5% ferric oxide red powder, 2%~3% silicon carbide, 5%~7% wollastonite, 4%~6% vermiculite power and
1%~2% high abrasion furnace black.
Preferably, the ferric oxide red powder is superfine iron oxide rouge and powder.
A kind of preparation method of brake pad in above-mentioned brake block, includes the following steps：
1) according to component formula among the above that each raw material preparation is appropriate, then will remove lignin fibre and phenolic resin or
The powder of other surplus stocks except boron modified phenolic resin or melamine modified phenolic resin is carried out by batch mixer
It is mixed, the raw mixture after mixing is then carried out decentralized processing so that component is disperseed by ultrasonic dispersing machine
Uniformly；
2) lignin fibre and phenolic resin or boron modified phenolic resin or melamine modified phenolic resin are mixed
It closes：Lignin fibre is divided into 4 equal portions, is gradually added in 4 different locations of batch mixer, 1 part is added within every 6 minutes and arrives phenolic resin
Or mixed in boron modified phenolic resin or melamine modified phenolic resin, batch mixing is completed mixed for 6 minutes after the 4th part is added
Material；
3) raw mixture made from step 1) is added in raw mixture made from step 2) and is mixed, charging speed
Degree is 0.5kg/min, and batch mixing is completed after continuing batch mixing after raw mixture made from step 1) adds；
4) mixture made from step 3) is placed in drying box and is dried 3 hours at temperature 50 C~60 DEG C；
5) mixture cold moudling on cold stamping die by step 4) after dry；
Then hot-press solidifying is carried out on hot press：Hot pressing temperature be 170 DEG C~180 DEG C, hot pressing pressure be 12MPa~
13MPa, hot pressing time are 10min~15min, three cycles of hot pressing；
6) product after step 5) hot-press solidifying is put into baking oven and is heat-treated：First by oven temperature at 1 hour
Within from room temperature rise to 90 DEG C, then keep the temperature 1 hour；
Then oven temperature is risen to 120 DEG C by 90 DEG C within an hour again, then keeps the temperature 1 hour；
Then oven temperature is risen to 170 DEG C by 120 DEG C within an hour again, then keeps the temperature 1 hour；
Then furnace cooling is to room temperature；
Then it demoulds, brake pad is made after the completion.
A kind of brake block, including backboard, bonding thermal insulation layer and brake pad, the brake pad are above-mentioned brake pad or above-mentioned
Preparation method prepared by brake pad.
This application provides the brake pads in a kind of brake block, are made of the raw material of following masses percentage：8%~9%
Phenolic resin or boron modified phenolic resin or melamine modified phenolic resin, 4%~6% acrylonitrile-butadiene rubber powder, 8%~
12% lignin fibre, 2%~5% activated carbon, 6%~8% expansible graphite, 2%~4% molybdenum disulfide,
18%~23% barium sulfate, 4%~7% calcium carbonate, 2%~3% calcium sulfate crystal whiskers, 3%~4% iron oxide yellow,
1%~2% aluminium oxide, 3%~5% ferric oxide red powder, 2%~3% silicon carbide, 5%~7% wollastonite, 4%~
6% vermiculite power and 1%~2% high abrasion furnace black；Present invention also provides a kind of brakes based on said components formula
The preparation method of brake pad in piece；The application has carried out ingredient reinforcing and process strengthening to brake pad, and ingredient, which is strengthened, combines work
Skill reinforcing realize combination among the strong ones, to improve the brake pad in brake block include friction coefficient, hardness, wear-resisting property,
Tough, the comprehensive performance including heat conductivility, high temperature resistance and corrosion resistance, with meet high load, high temperature,
Requirement under high speed and high corrosion environment, meets the requirement of socio-economic development and scientific and technological progress.
Specific implementation mode
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, still
It should be appreciated that feature and advantage that these descriptions only further illustrate the present invention, rather than to the limit of the claims in the present invention
System.
This application provides the brake pads in a kind of brake block, are made of the raw material of following masses percentage：8%~9%
Phenolic resin or boron modified phenolic resin or melamine modified phenolic resin, 4%~6% acrylonitrile-butadiene rubber powder, 8%~
12% lignin fibre, 2%~5% activated carbon, 6%~8% expansible graphite, 2%~4% molybdenum disulfide,
18%~23% barium sulfate, 4%~7% calcium carbonate, 2%~3% calcium sulfate crystal whiskers, 3%~4% iron oxide yellow,
1%~2% aluminium oxide, 3%~5% ferric oxide red powder, 2%~3% silicon carbide, 5%~7% wollastonite, 4%~
6% vermiculite power and 1%~2% high abrasion furnace black.
In one embodiment of the application, the ferric oxide red powder is superfine iron oxide rouge and powder.
The present invention is using phenolic resin or boron modified phenolic resin or melamine modified phenolic resin as bonding agent, with wooden
Cellulose fiber is main reinforcement fibres, and for lignin fibre compared to steel fibre, carbon fiber etc., density is relatively small, can reduce
The quality of brake block.Lignin fibre and phenolic resin are all organic high molecular compounds, have better affinity between them,
Cohesive force is big, adhesion strength higher, and lignin fibre is not easy to extract from matrix.
The lignin fibre that the present invention uses has active phenolic hydroxyl group (- OH), aldehyde radical (- CHO) functional group can be with phenolic aldehyde
Resin reaction enhances the adhesive property of phenolic resin adhesive, keeps brake block internal structure fine and close, improves brake block toughness and hard
Degree, the experimental results showed that its impact flexibility is 4.36J/cm2, hardness (HRL) is 70.
Lignin fibre can improve with sigmoid, uneven, porous special construction the stomata of friction material due to it
Rate reduces the noise in friction process.
Lignin fibre is as a kind of organic fiber, and the high temperature generated in friction process can be such that lignin fibre carbonizes, charcoal
Lignin fibre after change is equivalent to carbon fiber, and fine and close frictional layer is formed in disc surface.
The application can be effectively improved the stability of the friction coefficient of brake pad under hot conditions, drop by the way that molybdenum disulfide is added
Friction coefficient under low high temperature reduces noise, increases the service life of brake block.
Present invention adds molybdenum disulfide, can be effectively improved the stability of the friction coefficient of brake pad under hot conditions.
In the application, tough and its heat conduction of brake pad can be effectively improved by the addition of expansible graphite
The ability of heat dissipation；
Brake block high temperature resistant, the performance of resistance to oxidation can be improved in ferric oxide red powder, enhances the consistency and thermal diffusivity of brake pad
Can, reduce brake noise and shake；
Brake pad can be improved in the stable chemical performance of barium sulfate, not soluble in water, acid, alkali and organic solvent, a large amount of be added
Chemical stability and consistency；
The addition of molybdenum disulfide solid lubricant can adjust the friction coefficient of brake pad, keep the stabilization of friction coefficient
Property；
The addition of aluminium oxide can stablize the frictional behaviour at a high temperature of friction material, improve heat resistanceheat resistant decline performance；
The high stability of brake pad can be improved in the addition of calcium carbonate；
The thermal stability of brake pad, enhancing corrosion resistance and raising wearability can be improved in the addition of wollastonite.
Present invention also provides a kind of preparation methods of the brake pad in above-mentioned brake block, include the following steps：
1) according to component formula among the above that each raw material preparation is appropriate, then will remove lignin fibre and phenolic resin or
The powder of other surplus stocks except boron modified phenolic resin or melamine modified phenolic resin is carried out by batch mixer
It is mixed, the raw mixture after mixing is then carried out decentralized processing so that component is disperseed by ultrasonic dispersing machine
Uniformly；
2) lignin fibre and phenolic resin or boron modified phenolic resin or melamine modified phenolic resin are mixed
It closes：Lignin fibre is divided into 4 equal portions, is gradually added in 4 different locations of batch mixer, 1 part is added within every 6 minutes and arrives phenolic resin
Or mixed in boron modified phenolic resin or melamine modified phenolic resin, batch mixing is completed mixed for 6 minutes after the 4th part is added
Material；
3) raw mixture made from step 1) is added in raw mixture made from step 2) and is mixed, charging speed
Degree is 0.5kg/min, and batch mixing is completed after continuing batch mixing after raw mixture made from step 1) adds；
4) mixture made from step 3) is placed in drying box and is dried 3 hours at temperature 50 C~60 DEG C；
5) mixture cold moudling on cold stamping die by step 4) after dry；
Then hot-press solidifying is carried out on hot press：Hot pressing temperature be 170 DEG C~180 DEG C, hot pressing pressure be 12MPa~
13MPa, hot pressing time are 10min~15min, three cycles of hot pressing；
6) product after step 5) hot-press solidifying is put into baking oven and is heat-treated：First by oven temperature at 1 hour
Within from room temperature rise to 90 DEG C, then keep the temperature 1 hour；
Then oven temperature is risen to 120 DEG C by 90 DEG C within an hour again, then keeps the temperature 1 hour；
Then oven temperature is risen to 170 DEG C by 120 DEG C within an hour again, then keeps the temperature 1 hour；
Then furnace cooling is to room temperature；
Then it demoulds, brake pad is made after the completion.
By individually mixing the powdered object of raw material in step 1) of the present invention, and disperseed using ultrasonic dispersing machine
Processing so that raw material mixed distribution is more uniform.
The present invention passes through the adding method of timesharing subregion, mixed lignin fibre distribution when mixing lignin fibre
Uniformly, soilless sticking phenomenon, toughening effect are more preferable.
Present invention also provides a kind of brake block, including backboard, bonding thermal insulation layer and brake pad, the brake pad is above-mentioned
Brake pad or above-mentioned preparation method prepared by brake pad.
For a further understanding of the present invention, with reference to embodiment to a kind of brake pad provided by the invention and its preparation side
Method is described in detail, and protection scope of the present invention is not limited by the following examples.
Embodiment 1
A kind of brake pad in brake block, is made of the raw material of following masses：
9 grams of phenolic resin, 6 grams of acrylonitrile-butadiene rubber powder, 12 grams of lignin fibre, 2 grams of activated carbon, 8 grams can be swollen
Swollen graphite, 3 grams of molybdenum disulfide, 23 grams of barium sulfate, 6 grams of calcium carbonate, 3 grams of silicon carbide, 3 grams of calcium sulfate crystal whiskers, 4 grams
Iron oxide yellow, 2 grams of aluminium oxide, 5 grams of superfine iron oxide rouge and powder, 6 grams of wollastonite, 6 grams of vermiculite power and 2 grams of height
Abrasion furnace blacks.
The preparation method of brake pad in above-mentioned brake block, includes the following steps：
1) according to the component formula in embodiment 1 that each raw material preparation is appropriate, it then will remove lignin fibre and phenolic aldehyde tree
The powder of other surplus stocks except fat is mixed by batch mixer, and then the raw material after mixing is mixed
Object carries out decentralized processing so that component is uniformly dispersed by ultrasonic dispersing machine；
2) lignin fibre is mixed with phenolic resin：Lignin fibre is divided into 4 equal portions, batch mixer 4 not
It is gradually added with position, is added within every 6 minutes 1 part to being mixed in phenolic resin, batch mixing is completed for 6 minutes after the 4th part is added
Batch mixing；
3) raw mixture made from step 1) is added in raw mixture made from step 2) and is mixed, charging speed
Degree is 0.5kg/min, and batch mixing is completed after continuing batch mixing after raw mixture made from step 1) adds；
4) mixture made from step 3) is placed in drying box and is dried 3 hours at 55 DEG C of temperature；
5) mixture cold moudling on cold stamping die by step 4) after dry；
Then hot-press solidifying is carried out on hot press：Hot pressing temperature is 170 DEG C, hot pressing pressure 13MPa, and hot pressing time is
10min, three cycles of hot pressing；
6) product after step 5) hot-press solidifying is put into baking oven and is heat-treated：First by oven temperature at 1 hour
Within from room temperature rise to 90 DEG C, then keep the temperature 1 hour；
Then oven temperature is risen to 120 DEG C by 90 DEG C within an hour again, then keeps the temperature 1 hour；
Then oven temperature is risen to 170 DEG C by 120 DEG C within an hour again, then keeps the temperature 1 hour；
Then furnace cooling is to room temperature；
Then it demoulds, brake pad is made after the completion.
GB5763-2008 according to national standards rubs brake pad prepared by embodiment 1 on constant speed rubbing machine device
Experiment, specific test result are shown in Table 1a and 1b：
The main performance index of brake pad prepared by table 1a embodiments 1
The main performance index of brake pad prepared by table 1b embodiments 1
Embodiment 2
A kind of brake pad in brake block, is made of the raw material of following masses：
9 grams of boron modified phenolic resin, 6 grams of acrylonitrile-butadiene rubber powder, 12 grams of lignin fibre, 2 grams of activated carbon, 8 grams
Expansible graphite, 3 grams of molybdenum disulfide, 23 grams of barium sulfate, 6 grams of calcium carbonate, 3 grams of silicon carbide, 3 grams of calcium sulfate it is brilliant
Palpus, 4 grams of iron oxide yellow, 2 grams of aluminium oxide, 5 grams of superfine iron oxide rouge and powder, 6 grams of wollastonite, 6 grams of vermiculite power and 2
Gram high abrasion furnace black.
The preparation method of brake pad in above-mentioned brake block, includes the following steps：
1) according to the component formula in embodiment 2 that each raw material preparation is appropriate, it then will remove lignin fibre and boron modification
The powder of other surplus stocks except phenolic resin is mixed by batch mixer, then the original after mixing
Expect that mixture carries out decentralized processing so that component is uniformly dispersed by ultrasonic dispersing machine；
2) lignin fibre is mixed with boron modified phenolic resin：Lignin fibre is divided into 4 equal portions, in batch mixer
4 different locations gradually add, and are added within every 6 minutes 1 part to being mixed in boron modified phenolic resin, are mixed after the 4th part is added
Expect 6 minutes completion batch mixings；
3) raw mixture made from step 1) is added in raw mixture made from step 2) and is mixed, charging speed
Degree is 0.5kg/min, and batch mixing is completed after continuing batch mixing after raw mixture made from step 1) adds；
4) mixture made from step 3) is placed in drying box and is dried 3 hours under temperature 50 C；
5) mixture cold moudling on cold stamping die by step 4) after dry；
Then hot-press solidifying is carried out on hot press：Hot pressing temperature is 180 DEG C, hot pressing pressure 12MPa, and hot pressing time is
15min, three cycles of hot pressing；
6) product after step 5) hot-press solidifying is put into baking oven and is heat-treated：First by oven temperature at 1 hour
Within from room temperature rise to 90 DEG C, then keep the temperature 1 hour；
Then oven temperature is risen to 120 DEG C by 90 DEG C within an hour again, then keeps the temperature 1 hour；
Then oven temperature is risen to 170 DEG C by 120 DEG C within an hour again, then keeps the temperature 1 hour；
Then furnace cooling is to room temperature；
Then it demoulds, brake pad is made after the completion.
GB5763-2008 according to national standards rubs brake pad prepared by embodiment 2 on constant speed rubbing machine device
Experiment, specific test result are shown in Table 2a and 2b：
The main performance index of brake pad prepared by table 2a embodiments 2
The main performance index of brake pad prepared by table 2b embodiments 2
Embodiment 3
A kind of brake pad in brake block, is made of the raw material of following masses：
9 grams of melamine modified phenolic resin, 6 grams of acrylonitrile-butadiene rubber powder, 12 grams of lignin fibre, 2 grams of activity
Charcoal, 8 grams of expansible graphite, 3 grams of molybdenum disulfide, 23 grams of barium sulfate, 6 grams of calcium carbonate, 3 grams of silicon carbide, 3 grams of sulphur
Sour calcium pyroborate, 4 grams of iron oxide yellow, 2 grams of aluminium oxide, 5 grams of superfine iron oxide rouge and powder, 6 grams of wollastonite, 6 grams of vermiculite
Powder and 2 grams of high abrasion furnace black.
The preparation method of brake pad in above-mentioned brake block, includes the following steps：
1) according to the component formula in embodiment 3 that each raw material preparation is appropriate, it then will remove lignin fibre and melamine
The powder of other surplus stocks except amine-modified phenol-formaldehyde resin is mixed by batch mixer, then mixing
Raw mixture afterwards carries out decentralized processing so that component is uniformly dispersed by ultrasonic dispersing machine；
2) lignin fibre is mixed with melamine modified phenolic resin：Lignin fibre is divided into 4 equal portions,
4 different locations of batch mixer gradually add, and are added within every 6 minutes 1 part to being mixed in melamine modified phenolic resin, wait for the
6 minutes completion batch mixings of batch mixing after 4 parts of additions；
3) raw mixture made from step 1) is added in raw mixture made from step 2) and is mixed, charging speed
Degree is 0.5kg/min, and batch mixing is completed after continuing batch mixing after raw mixture made from step 1) adds；
4) mixture made from step 3) is placed in drying box and is dried 3 hours under temperature 60 C；
5) mixture cold moudling on cold stamping die by step 4) after dry；
Then hot-press solidifying is carried out on hot press：Hot pressing temperature is 170 DEG C, hot pressing pressure 13MPa, and hot pressing time is
12min, three cycles of hot pressing；
6) product after step 5) hot-press solidifying is put into baking oven and is heat-treated：First by oven temperature at 1 hour
Within from room temperature rise to 90 DEG C, then keep the temperature 1 hour；
Then oven temperature is risen to 120 DEG C by 90 DEG C within an hour again, then keeps the temperature 1 hour；
Then oven temperature is risen to 170 DEG C by 120 DEG C within an hour again, then keeps the temperature 1 hour；
Then furnace cooling is to room temperature；
Then it demoulds, brake pad is made after the completion.
GB5763-2008 according to national standards rubs brake pad prepared by embodiment 3 on constant speed rubbing machine device
Experiment, specific test result are shown in Table 3a and 3b：
The main performance index of brake pad prepared by table 3a embodiments 3
The main performance index of brake pad prepared by table 3b embodiments 3
The explanation of above example is only intended to facilitate the understanding of the method and its core concept of the invention.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvements and modifications, these improvement and modification are also fallen within the protection scope of the claims of the present invention.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
A variety of modifications for these embodiments are it will be apparent that as defined herein one for those skilled in the art
As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will
It will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with the principles and novel features disclosed herein
Widest range.
Claims (4)
1. the brake pad in a kind of brake block, which is characterized in that be made of the raw material of following masses percentage：8%~9% phenol
Urea formaldehyde or boron modified phenolic resin or melamine modified phenolic resin, 4%~6% acrylonitrile-butadiene rubber powder, 8%~12%
Lignin fibre, 2%~5% activated carbon, 6%~8% expansible graphite, 2%~4% molybdenum disulfide, 18%~
23% barium sulfate, 4%~7% calcium carbonate, 2%~3% calcium sulfate crystal whiskers, 3%~4% iron oxide yellow, 1%~
2% aluminium oxide, 3%~5% ferric oxide red powder, 2%~3% silicon carbide, 5%~7% wollastonite, 4%~6%
Vermiculite power and 1%~2% high abrasion furnace black.
2. brake pad according to claim 1, which is characterized in that the ferric oxide red powder is superfine iron oxide rouge and powder.
3. a kind of preparation method of the brake pad in brake block as claimed in claim 1 or 2, which is characterized in that including following step
Suddenly：
1) according to the component formula in claims 1 or 2 that each raw material preparation is appropriate, it then will remove lignin fibre and phenolic aldehyde tree
The powder of other surplus stocks except fat or boron modified phenolic resin or melamine modified phenolic resin passes through batch mixer
It is mixed, the raw mixture after mixing is then carried out decentralized processing so that component by ultrasonic dispersing machine
It is uniformly dispersed；
2) lignin fibre is mixed with phenolic resin or boron modified phenolic resin or melamine modified phenolic resin：It will
Lignin fibre is divided into 4 equal portions, is gradually added in 4 different locations of batch mixer, is added within every 6 minutes 1 part and arrives phenolic resin or boron
It is mixed in phenol-formaldehyde resin modified or melamine modified phenolic resin, 6 minutes completion batch mixings of batch mixing after the 4th part is added；
3) raw mixture made from step 1) is added in raw mixture made from step 2) and is mixed, charging rate is
0.5kg/min completes batch mixing after continuing batch mixing after raw mixture made from step 1) adds；
4) mixture made from step 3) is placed in drying box and is dried 3 hours at temperature 50 C~60 DEG C；
5) mixture cold moudling on cold stamping die by step 4) after dry；
Then hot-press solidifying is carried out on hot press：Hot pressing temperature is 170 DEG C~180 DEG C, and hot pressing pressure is 12MPa~13MPa,
Hot pressing time is 10min~15min, three cycles of hot pressing；
6) product after step 5) hot-press solidifying is put into baking oven and is heat-treated：First by oven temperature within an hour
90 DEG C are risen to from room temperature, then keeps the temperature 1 hour；
Then oven temperature is risen to 120 DEG C by 90 DEG C within an hour again, then keeps the temperature 1 hour；
Then oven temperature is risen to 170 DEG C by 120 DEG C within an hour again, then keeps the temperature 1 hour；
Then furnace cooling is to room temperature；
Then it demoulds, brake pad is made after the completion.
4. a kind of brake block, including backboard, bonding thermal insulation layer and brake pad, which is characterized in that the brake pad is claim 1
Or the brake pad described in 2 or the brake pad prepared by the preparation method described in claim 3.
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| CN201810271407.6A CN108506387A (en) | 2018-03-29 | 2018-03-29 | A kind of brake pad and preparation method thereof, brake block |
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| CN201810271407.6A Pending CN108506387A (en) | 2018-03-29 | 2018-03-29 | A kind of brake pad and preparation method thereof, brake block |
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| CN109621238A (en) * | 2018-12-19 | 2019-04-16 | 孝感定原电子科技有限公司 | A kind of Multifunction altitude prompt drop rope |
| CN110821996A (en) * | 2019-12-03 | 2020-02-21 | 焦作大学 | Long-life friction material |
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| CN111664204A (en) * | 2019-03-08 | 2020-09-15 | 东营信义制动系统有限公司 | Novel high-efficient brake block |
| CN111664203A (en) * | 2019-03-08 | 2020-09-15 | 信义集团公司 | Environment-friendly efficient brake pad and preparation method thereof |
| CN112145599A (en) * | 2020-09-03 | 2020-12-29 | 桐庐宇鑫汽配有限公司 | Processing technology of calcium sulfate whisker brake pad |
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| CN111005960A (en) * | 2019-12-17 | 2020-04-14 | 重庆红宇摩擦制品有限公司 | Automobile brake pad, manufacturing method thereof and material for manufacturing automobile brake pad |
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