CN109628065A - A kind of brake block friction material and preparation method thereof - Google Patents
A kind of brake block friction material and preparation method thereof Download PDFInfo
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- CN109628065A CN109628065A CN201910008260.6A CN201910008260A CN109628065A CN 109628065 A CN109628065 A CN 109628065A CN 201910008260 A CN201910008260 A CN 201910008260A CN 109628065 A CN109628065 A CN 109628065A
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- brake block
- powder
- product
- friction material
- block friction
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- 239000002783 friction material Substances 0.000 title claims abstract description 79
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000000843 powder Substances 0.000 claims abstract description 54
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 32
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 30
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims abstract description 28
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 24
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 17
- 239000010949 copper Substances 0.000 claims abstract description 17
- 229910001369 Brass Inorganic materials 0.000 claims abstract description 16
- 239000010951 brass Substances 0.000 claims abstract description 16
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 16
- 239000011347 resin Substances 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 16
- 229920003043 Cellulose fiber Polymers 0.000 claims abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 15
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 15
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 15
- 229910052802 copper Inorganic materials 0.000 claims abstract description 15
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 15
- 239000000314 lubricant Substances 0.000 claims abstract description 15
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 15
- 229940007424 antimony trisulfide Drugs 0.000 claims abstract description 14
- NVWBARWTDVQPJD-UHFFFAOYSA-N antimony(3+);trisulfide Chemical compound [S-2].[S-2].[S-2].[Sb+3].[Sb+3] NVWBARWTDVQPJD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 14
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims abstract description 14
- 239000000454 talc Substances 0.000 claims abstract description 14
- 229910052623 talc Inorganic materials 0.000 claims abstract description 14
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 13
- 239000013078 crystal Substances 0.000 claims abstract description 13
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000007731 hot pressing Methods 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 16
- 238000010792 warming Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 11
- 238000005488 sandblasting Methods 0.000 claims description 9
- 238000012216 screening Methods 0.000 claims description 8
- 238000005422 blasting Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- XUBKPYAWPSXPDZ-UHFFFAOYSA-N [Ba].OS(O)(=O)=O Chemical compound [Ba].OS(O)(=O)=O XUBKPYAWPSXPDZ-UHFFFAOYSA-N 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 28
- 230000000694 effects Effects 0.000 description 15
- 239000003795 chemical substances by application Substances 0.000 description 8
- 239000010425 asbestos Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 229910052895 riebeckite Inorganic materials 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 238000005054 agglomeration Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 3
- 238000005562 fading Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 210000004209 hair Anatomy 0.000 description 2
- 239000003752 hydrotrope Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000003002 pH adjusting agent Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000012783 reinforcing fiber Substances 0.000 description 2
- QUCDWLYKDRVKMI-UHFFFAOYSA-M sodium;3,4-dimethylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1C QUCDWLYKDRVKMI-UHFFFAOYSA-M 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 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
- 239000003831 antifriction material 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
- 239000011230 binding agent Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 229920005596 polymer binder Polymers 0.000 description 1
- 239000002491 polymer binding agent Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- 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
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D2069/001—Material of friction lining and support element of same or similar composition
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a kind of brake block friction materials and preparation method thereof, it includes following component: 7~10% resin that it is formulated by mass percentage, 1~3% tyre talc, 1~3% nitrile rubber powder, 3~4% Frication powder, 1~5% antimony trisulfide, 8~15% barium sulfate, 2~4% calcium hydroxide, 1~3% calcium carbonate, 1~3% chrome green, 3~6% magnesia, 4~6% iron oxide black, 5~7% brass powder, 1~3% zinc powder, 2~4% aramid fiber, 1~4% cellulose fibre, 10~15% crystal whisker of hexa potassium titanate, 6~9 red copper fiber and 2~3% SLS solid lubricant.Brake block friction material of the invention can be achieved at the same time a variety of excellent properties, have both high-comfort and high security, and the production method of brake block friction material of the invention is simple, be suitable for promoting.
Description
Technical field
The present invention relates to automobile manufacturing field, especially a kind of brake block friction material and preparation method thereof.
Background technique
Friction material is with being formed from high polymer binder, reinforcing fiber and frictional property regulator three categories and is other
Agent is constituted, and a series of manufactured product through production and processings, they are widely used in automobile, train, aircraft, oil-well rig etc.
On all kinds of engineering mechanical devices.
Traditional automotive brake pads generallys use asbestos friction material, semimetal friction material or without the organic friction material of asbestos
Material etc..Since asbestos brake lining high temperature friction performance is unstable, brake oil is big, service life is short and strong carcinogenicity, by
Semimetal and without asbestos organic friction material replace.But current most of semimetals and non-asbestos brake block can't adapt to completely
Complicated severe damped condition and higher environmental requirement, especially in damped conditions such as high speed, heavy duties.Semi-metallic brake pad system
Moving noise is big, easy damaged mating plate, easily gets rusty and easily frictional behaviour is caused to fail；Non-asbestos brake block can be released by high temperature friction
It releases pernicious gas and heat fading easily occurs and cause brake fade, lead to serious accident, bring huge economy
Loss.It is excellent that part brake piece performance has been done step-by-step by the change and addition of various components in existing brake block friction material
Different effect, still, simultaneously inevitably exist some or multiple poor performances, influence people usage experience and
Security performance.
It needs a kind of indices and is able to satisfy prior art requirement, and security performance and the higher brake block of comfort rub
Material is wiped to solve above-mentioned technical problem.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of brake block friction material and preparation method thereof, this hairs
Bright brake block friction material can be achieved at the same time a variety of excellent properties, have both high-comfort and high security, brake of the invention
The production method of vehicle piece friction material is simple, is suitable for promoting.
The present invention is to solve above-mentioned technical problem by following technical solution:
The present invention provides a kind of brake block friction material, formula includes following component by mass percentage: 7~
10% resin, 1~3% tyre talc, 1~3% nitrile rubber powder, 3~4% Frication powder, 1~5% antimony trisulfide, 8
~15% barium sulfate, 2~4% calcium hydroxide, 1~3% calcium carbonate, 1~3% chrome green, 3~6% magnesia, 4
~6% iron oxide black, 5~7% brass powder, 1~3% zinc powder, 2~4% aramid fiber, 1~4% cellulose fibre, 10~
15% crystal whisker of hexa potassium titanate, 6~9 red copper fiber and 2~3% SLS solid lubricant.
Preferably, the brake block friction material includes following component by mass percentage: 8~10% resin, 2~
3% tyre talc, 2~3% nitrile rubber powder, 3.5~4% Frication powder, 2~5% antimony trisulfide, 9~15% sulfuric acid
Barium, 3~4% calcium hydroxide, 2~3% calcium carbonate, 2~3% chrome green, 4~6% magnesia, 5~6% iron oxide black, 6
~7% brass powder, 1.5~3% zinc powder, 3~4% aramid fiber, 1.5~4% cellulose fibre, 11~15% six titaniums
Sour potassium whisker, 6.5~9 red copper fiber and 2.5~3% SLS solid lubricant.
More preferably, brake block friction material of the invention includes following component by mass percentage: 9% resin, 3%
Tyre talc, 2.5% nitrile rubber powder, 4% Frication powder, 4% antimony trisulfide, 15% barium sulfate, 4% hydroxide
Calcium, 3% calcium carbonate, 2% chrome green, 5% magnesia, 6% iron oxide black, 7% brass powder, 1.5% zinc powder, 4%
Aramid fiber, 3% cellulose fibre, 15% crystal whisker of hexa potassium titanate, 9 red copper fiber and 3% SLS solid lubricant.
More preferably, brake block friction material of the invention component by mass percentage are as follows: 9% resin, 3% tire
Powder, 2.5% nitrile rubber powder, 4% Frication powder, 4% antimony trisulfide, 15% barium sulfate, 4% calcium hydroxide, 3%
Calcium carbonate, 2% chrome green, 5% magnesia, 6% iron oxide black, 7% brass powder, 1.5% zinc powder, 4% aramid fiber, 3%
Cellulose fibre, 15% crystal whisker of hexa potassium titanate, 9 red copper fiber and 3% SLS solid lubricant.
In the present invention, the resin is the binder in the brake block friction material, is white powder, the resin
Parameter are as follows: molten point: 100~120 DEG C；125 DEG C, 30 ° of 10~30mm of inclined plate；Gel time: 150 DEG C of hot plates, 25~45s；Fineness:
200 mesh percent of pass are more than or equal to 94%；The resin is purchased from Guangdong Jiangmen Kun Yi resin material Science and Technology Ltd., and the trade mark is card
Show 9010.
In the present invention, the tyre talc is the comfort conditioning agent in the brake block friction material, outside the tyre talc
See is black elastic granule, free from admixture；The parameter of the tyre talc are as follows: screening degree: 40 mesh percent of pass 95%, 80 mesh percent of pass
5%；Moisture is less than or equal to 1%；Impurity content: 0.65-0.9%；The tyre talc is purchased from Shanghai Yi Zhe Industrial Co., Ltd..
In the present invention, the nitrile rubber powder is the comfort conditioning agent in the brake block friction material, and the fourth is fine
Rubber powder appearance is white powder, flexible, no agglomeration；The parameter of the nitrile rubber powder are as follows: 40 mesh full by；The fourth is fine
Rubber powder is purchased from Hengshui Jian Sheng rubber and plastic Science and Technology Ltd., the trade mark 835.
In the present invention, the Frication powder is the comfort conditioning agent in the brake block friction material, and the Frication powder is
Black powder, the parameter of the Frication powder are as follows: screening degree: 100 mesh 20~45%；700 DEG C, 4 hours ash: less than be equal to 2%；
Fugitive constituent: 370 DEG C of decrements are less than or equal to 30%；The Frication powder is purchased from Qingdao Zhong Fuhang trade Co., Ltd, and the trade mark is
NC108。
In the present invention, the antimony trisulfide is the anti-friction agent in the brake block friction material, the parameter of the antimony trisulfide are as follows:
325 mesh percent of pass are more than or equal to 95%；Moisture degree is less than or equal to 1；Sb is more than or equal to 65%；It is gloomy that the antimony trisulfide is purchased from Hubei day
Industry Co., Ltd.
In the present invention, the barium sulfate is the filler in the brake block friction material, the parameter of the barium sulfate are as follows: sulphur
Sour barium content is more than or equal to 98%；The hydrotrope is less than or equal to 0.3%；Fineness: 0.045mm is less than or equal to 0.2%；Oil absorption: 15
~25g/100g；105 DEG C of volatile matters are less than or equal to 0.3%；PH:6.5~9；It is limited that the barium sulfate is purchased from Shanxi south wind group
Company.
In the present invention, the calcium hydroxide is the pH adjusting agent in the automobile brake friction material, is white powder, nothing
Agglomeration；The parameter of the calcium hydroxide are as follows: calcium hydroxide content is more than or equal to 98%；Screening degree: 200 mesh are more than or equal to 96%；
The calcium hydroxide is purchased from granary east Metallurgical Factory.
In the present invention, the calcium carbonate is the pH adjusting agent in the automobile brake friction material, the calcium carbonate appearance
For white powder, free from admixture, no agglomeration；The parameter of the calcium carbonate are as follows: calcium carbonate content: greater than be equal to 98%；Moisture: less than
Equal to 0.2%；Screening degree: it is less than or equal to 0.05% on 325 mesh；The calcium carbonate is purchased from Shanghai Hao Le Chemical Co., Ltd..
In the present invention, the chrome green is the increasing grinding agent in the automobile brake friction material, the parameter of the chrome green are as follows: sieve
325 mesh percent of pass are indexed more than or equal to 99%；Heap density: 0.6~0.8g/cm3；Moisture content: less than be equal to 0.5%；The chrome green
It is purchased from Hebei wing three quarter Chemical Co., Ltd..
In the present invention, the magnesia is the increasing grinding agent in the brake block friction material, the parameter of the magnesia are as follows:
Content of magnesia: 92% or more, 150 μm are less than or equal to 0, and heap density is less than or equal to 0.29；The magnesia is purchased from Hebei magnesium mind
Science and Technology Ltd..
In the present invention, the iron black increasing grinding agent in the brake block friction material, the parameter of the iron oxide black are as follows:
Fe3O4: greater than be equal to 95.0%；The hydrotrope: less than be equal to 1%；105 DEG C of volatile matters: 10min is less than or equal to 1.0%；Sieve residue
(45 μm of sieves): less than it is equal to 0.5%；Color (with standard specimen ratio): 95~105, △ E: less than be equal to 1.0；Oil absorption: 15~
25g/100g；Meal with wine burning decrement: less than be equal to 5.0%；The iron oxide black is purchased from Shanghai Yipin Pigments Co., Ltd., trade mark S330M.
In the present invention, the brass powder is the Heat Conduction Material in the brake block friction material, and appearance is that yellow is porous
Sprills, it is rustless, it is pollution-free；The parameter of the brass powder are as follows: Zn content: 19.5~20%；Cu content 80~80.5%；Screening
Degree: -200 mesh percent of pass 95%；The brass powder is purchased from nine metal powder Co., Ltd, section of Shanghai.
In the present invention, the zinc powder is the Heat Conduction Material in the brake block friction material, the parameter of the zinc powder are as follows: zinc
Content is more than or equal to 96%；Partial size D (V0.5): 6.0~9.0 μm；The zinc powder is purchased from Jiangsu Shen Longxin industry Co., Ltd.
In the present invention, the aramid fiber is the reinforcing material of the brake block friction material, and the color of the aramid fiber appearance is
Yellow；The parameter of the aramid fiber are as follows: the specific surface area of the aramid fiber is 9~14m2/ g, the distribution of lengths of the aramid fiber is 0.8~
1.6mm, the moisture content of the aramid fiber are 4~8%；The aramid fiber is purchased from Lan Bang industrial fiber Co., Ltd.
In the present invention, the cellulose fibre is the reinforcing fiber of the brake block friction material, the cellulose fibre
Appearance is canescence fleece, free from admixture；The parameter of the cellulose fibre are as follows: length: 0.6~1mm；Shui Fen≤5.5%；Ash
Part: less than it is equal to 4.5%；The cellulose fibre is purchased from Changzhou East China special fibre Co., Ltd, trade mark CF-1.
In the present invention, the crystal whisker of hexa potassium titanate is the frictional property regulator in the brake block friction material, described
The parameter of crystal whisker of hexa potassium titanate are as follows: 325 mesh percent of pass are greater than 80%；PH:8.0~11.0；Moisture degree is less than 0.7%；Molten point:
1300~1350 DEG C；The crystal whisker of hexa potassium titanate is purchased from one sunlight Industrial Co., Ltd. of Shanghai, trade mark M-300.
In the present invention, the red copper fiber is the Heat Conduction Material in the brake block friction material, the red copper fiber
Parameter are as follows: copper content is more than or equal to 99.9%；String diameter: 0.18mm；2~4mm of length；The red copper fiber is purchased from Foshan South Sea prestige
Sub- friction material Co., Ltd, trade mark 0.18MM.
In the present invention, the SLS solid lubricant is the high-temperature lubricant in the brake block friction material, the SLS
The parameter of solid lubricant are as follows: D50:12~16 μm；Moisture: less than be equal to 1%；The SLS solid lubricant is purchased from Shanghai sieve
Obtain green wood Co., Ltd, trade mark SLS-3.
The present invention also provides a kind of production method of above-mentioned brake block friction material, the systems of the brake block friction material
Making method is that this field is conventional；Preferably, the production method of the brake block friction material includes the following steps:
S1, each raw material component mixed as mass fraction；
S2, the mixture after S1 mixed processing is subjected to hot-pressing processing；
S3, the product after S2 hot-pressing processing is subjected to curing process；
S4, to obtained after S3 curing process brake block friction material carry out blasting treatment.
In the present invention, in S1 carry out mixed processing device be high speed mixer, wherein carry out mixed processing revolving speed,
Time and maximum mixing temperature are that this field is conventional；
Preferably, mixed revolving speed is 2895~2905rpm in the S1；The mixed time is 25min；Maximum is mixed
Closing temperature is 50 DEG C.
In the present invention, in S2 carry out hot-pressing processing device be 100 ton of six work position hydraulic machine, wherein the temperature of hot pressing and
The pressing pressure of hot pressing is that this field is conventional；
Preferably, in the S2, the temperature of hot pressing are as follows: 153~163 DEG C of upper mold, 140~150 DEG C of middle mould, lower die 145
~155 DEG C；The pressing pressure of hot pressing is 35MPa.
In the present invention, in S3 carry out curing process device be program-controlled heat treatment oven, wherein carry out cured temperature and
Time is that this field is conventional；
Preferably, carrying out the temperature and time of curing process in the S3 are as follows: (1) room temperature is warming up to 80 by 0.5h
DEG C, the constant temperature 1h at 80 DEG C；(2) 80 DEG C are warming up to 120 DEG C by 0.5h, the constant temperature 1h at 120 DEG C；(3) 120 DEG C are passed through 1h liter
Temperature is to 150 DEG C, the constant temperature 2h at 150 DEG C；(4) 150 DEG C are warming up to 180 DEG C by 1h, the constant temperature 2h at 180 DEG C；(5)180℃
200 DEG C are warming up to by 1h, the constant temperature 2h at 200 DEG C；(6) 200 DEG C are warming up to 220 DEG C by 1h, the constant temperature 3h at 220 DEG C.
In the present invention, the device that blasting treatment is carried out in S4 is single side sand-blasting machine, and the material and rate of sandblasting are this field
It is conventional；
Preferably, the material of sandblasting is the 7# grains of sand in the S4, the rate of sandblasting is 500/30min.
The advantages and beneficial effects of the present invention are: brake block friction material of the invention passes through the collaboration between each component
Cooperate and finally the properties of product are able to satisfy in industry the stringent screening of each component content and require, and portion
Divide stability and the comfort property of technical effect such as frictional behaviour excellent, for other products in industry, this hair
Bright brake block friction material can be achieved at the same time a variety of excellent properties, have both high-comfort and high security, brake of the invention
The production method of vehicle piece friction material is simple, is suitable for promoting.
Specific embodiment
With reference to embodiment, the specific embodiment of the present invention is further described.Following embodiment is only used for more
Add and clearly demonstrate technical solution of the present invention, and not intended to limit the protection scope of the present invention.
Raw material sources used in following embodiment are as follows:
Resin is purchased from Guangdong Jiangmen Kun Yi resin material Science and Technology Ltd., and the trade mark is card show 9010；
Tyre talc is purchased from Shanghai Yi Zhe Industrial Co., Ltd.；
Nitrile rubber powder is purchased from Hengshui Jian Sheng rubber and plastic Science and Technology Ltd., the trade mark 835；
Frication powder is purchased from Qingdao Zhong Fuhang trade Co., Ltd, trade mark NC108；
Antimony trisulfide is purchased from Hubei Tian Sen Industry Co., Ltd；
Barium sulfate is purchased from Shanxi south wind Group Co., Ltd；
Calcium hydroxide is purchased from granary east Metallurgical Factory；
Calcium carbonate is purchased from Shanghai Hao Le Chemical Co., Ltd.；
Chrome green is purchased from Hebei wing three quarter Chemical Co., Ltd.；
Magnesia is purchased from Hebei Mei Shen Science and Technology Ltd.；
Iron oxide black is purchased from Shanghai Yipin Pigments Co., Ltd., trade mark S330M；
Brass powder is purchased from nine metal powder Co., Ltd, section of Shanghai；
Zinc powder is purchased from Jiangsu Shen Longxin industry Co., Ltd；
Aramid fiber is purchased from Lan Bang industrial fiber Co., Ltd；
Cellulose fibre is purchased from Changzhou East China special fibre Co., Ltd, trade mark CF-1；
Crystal whisker of hexa potassium titanate is purchased from one sunlight Industrial Co., Ltd. of Shanghai, trade mark M-300；
Red copper fiber is purchased from Foshan South Sea wire friction material Co., Ltd, trade mark 0.18MM；
SLS solid lubricant is purchased from Shanghai Luo get green wood Co., Ltd, trade mark SLS-3；
Embodiment 1
A kind of brake block friction material is present embodiments provided, by mass percentage component are as follows: 9% resin, 3%
Tyre talc, 2.5% nitrile rubber powder, 4% Frication powder, 4% antimony trisulfide, 15% barium sulfate, 4% calcium hydroxide,
3% calcium carbonate, 2% chrome green, 5% magnesia, 6% iron oxide black, 7% brass powder, 1.5% zinc powder, 4% virtue
Synthetic fibre, 3% cellulose fibre, 15% crystal whisker of hexa potassium titanate, 9 red copper fiber and 3% SLS solid lubricant.
The production method of the brake block friction material of the present embodiment are as follows:
S1, each raw material component mixed as mass fraction；
S2, the mixture after S1 mixed processing is subjected to hot-pressing processing；
S3, the product after S2 hot-pressing processing is subjected to curing process；
S4, to obtained after S3 curing process brake block friction material carry out blasting treatment.
The device that mixed processing is carried out in S1 is high speed mixer, wherein mixed revolving speed is 2900rpm；When mixed
Between be 25min；Maximum mixing temperature is 50 DEG C.
The device that hot-pressing processing is carried out in S2 is 100 ton of six work position hydraulic machine, wherein the temperature of hot pressing are as follows: upper mold 153~
163 DEG C, 140~150 DEG C of middle mould, 145~155 DEG C of lower die；The pressing pressure of hot pressing is 35MPa.
The device that curing process is carried out in S3 is program-controlled heat treatment oven, wherein carries out the temperature and time of curing process
Are as follows: (1) room temperature is warming up to 80 DEG C by 0.5h, the constant temperature 1h at 80 DEG C；(2) 80 DEG C are warming up to 120 DEG C by 0.5h, 120
Constant temperature 1h at DEG C；(3) 120 DEG C are warming up to 150 DEG C by 1h, the constant temperature 2h at 150 DEG C；(4) 150 DEG C are warming up to 180 by 1h
DEG C, the constant temperature 2h at 180 DEG C；(5) 180 DEG C are warming up to 200 DEG C by 1h, the constant temperature 2h at 200 DEG C；(6) 200 DEG C are passed through 1h liter
Temperature is to 220 DEG C, the constant temperature 3h at 220 DEG C.
The device that blasting treatment is carried out in S4 is single side sand-blasting machine, and the material of sandblasting is the 7# grains of sand, and the rate of sandblasting is 500
Piece/30min.
Effect example 1
Five parts are randomly selected to the brake block friction material that embodiment 1 obtains, be denoted as respectively product A, product B, products C,
Product D and product E carry out pH detection, testing standard are as follows: Q/JLY to product A, product B, products C, product D and product E
J7110979B-2018, detecting step are as follows:
(1) 2 hours dry under the conditions of product A, product B, products C, product D and product E being individually placed to 105 DEG C ± 5 DEG C
Afterwards, it is placed on equipped with CaCl2Container in be cooled to room temperature；
(2) 3g product A, product B and products C powder is extracted in desiccant to be placed in measurement container；
(3) distilled water of 100mL is taken to be placed in test chamber, agitating solution；
(4) lid of measurement container is covered placement 10~24 hours；
(5) pH value of pH titer is set first as 0；
(6) lid for measuring container is opened, stirs powder and liquid, is placed 2~3 minutes after stirring；
(7) the pH agent pH value determination of standard is used；Testing result is as shown in table 1:
1 product A of table, product B, products C, the pH value of product D and product E
| Number | Product A | Product B | Products C | Product D | Product E |
| PH value | 10.42 | 10.67 | 10.22 | 10.89 | 10.45 |
As can be seen from the above table, the pH of product of the present invention is all larger than 10, the requirement compared to existing brake block for pH
For 9, product of the invention can be met the requirements well, avoid the disc surface in rainwater well
Corrosion phenomena.
Effect example 2
Five parts are randomly selected to the brake block friction material that embodiment 1 obtains, be denoted as respectively product A, product B, products C,
Product D and product E, product A, product B, products C, product D and product E carry out hardness test, and experimental temperature is 37 DEG C, test mark
Standard is GB/T 5766-2007；Test result is as shown in table 2 below:
2 product A of table, product B, products C, the hardness of product D and product E
| Serial number | Product A | Product B | Products C | Product D | Product E |
| Hardness | 87 | 86 | 80 | 92 | 84 |
The hardness of brake block friction material of the invention is higher compared with professional standard it can be seen from said effect data, tool
There is biggish advantage.
Effect example 3
Five parts are randomly selected to the brake block friction material that embodiment 1 obtains, be denoted as respectively product A, product B, products C,
Product D and product E carry out thermal expansion test, examination criteria GB/T to product A, product B, products C, product D and product E
22311-2008；Experimental result is as shown in table 3 below:
3 product A of table, product B, products C, product D and product E hot expansibility
| Number | Product A | Product B | Products C | Product D | Product E |
| It thermally expands (μm) | 68 | 69 | 74 | 62 | 68 |
The coefficient of thermal expansion of brake block of the invention is at 70 μm or so as can be seen from the above table, and current common demands are in industry
Less than 100 μm, product of the invention very well satisfies the requirement of industry as a result, compared to most of automotive brake pads
It for friction material, takes advantage in thermal expansion effects, avoids the generation of locking phenomenon of the automobile after emergency braking,
Reduce security risk.
Effect example 4
Five parts are randomly selected to the brake block friction material that embodiment 1 obtains, be denoted as respectively product A, product B, products C,
Product D and product E carry out thermal transmittance test, testing standard GB/T to product A, product B, products C, product D and product E
22310, test procedure are as follows:
(1) friction block of quasi- new state；
(2) thermocouple is installed by the pertinent regulations of QC/T 556；
(3) before testing, piston simulation formed punch and its installation section should be cooled to room temperature, and central shaft is made to be directed at friction material
The intermediate position of material；
(4) temperature of heating plate is heated to 400 DEG C ± 5 DEG C, and then the friction material surface of friction block is inserted close to heating plate
Enter；
(5) the piston clamping force of piston simulation formed punch simulation 0.5MPa, and pressure maintaining 10min；
(6) the temperature climb data of friction block bottom plate in 10min is recorded, test result is as shown in table 4 below:
4 product A of table, product B, products C, product D and product E heat-conductive characteristic
| Serial number | Product A | Product B | Products C | Product D | Product E |
| Data (DEG C) | 182 | 189 | 186 | 192 | 180 |
The pyroconductivity of brake block friction material of the invention is lower it can be seen from upper table 4, require in industry for less than
Equal to 250 DEG C, product of the invention much meets above-mentioned requirements, it is possible thereby to effectively avoid the boiling of brake fluid.
Effect example 5
Five parts are randomly selected to the brake block friction material that embodiment 1 obtains, be denoted as respectively product A, product B, products C,
Product D and product E, product A, product B, products C, product D and product E carry out porosity test, and examination criteria is JC/T 685-
2009；Test result is as shown in table 5 below:
5 product A of table, product B, products C, product D and product E the porosity
| Serial number | Product A | Product B | Products C | Product D | Product E |
| Data (%) | 15.2 | 14.2 | 14.5 | 14.7 | 15.0 |
From the above data, it can be seen that the porosity of brake block friction material of the invention is effectively increased 15% or so
The heat dissipation performance of brake block in use, improves security performance.
Effect example 6
Two parts are randomly selected to the brake block friction material that embodiment 1 obtains, product A and product B are denoted as respectively, to product
A and product B carries out AK Master test, and testing standard is SAE J2522-2014, test result are as follows:
(1) nominal coefficient of friction: μ nom=0.38；
(2) speed sensitivity: μ f (v40)/μm ean=13%≤20%；
μ f (v80)/μm ean=3%≤20%；
μ f (v120)/μm ean=3%≤20%；
μ f (v160)/μm ean=8%≤20%；
μ f (v190)/μm ean=8%≤20%；
(3) hydraulic sensitive: μ f (p)/μm ean@40kph=12%≤20%；
μ f (p)/μm ean@80kph=11%≤20%；
μ f (p)/μm ean@120kph=8%≤20%；
μ f (p)/μm ean@160kph=9%≤20%；
μ f (p)/μm ean@190kph=8%≤20%；
(4) temperature sensitivity: μ f (T)/μm ean=5%≤20%；
(5) hot braking: μ fading/ μm ean=13%≤20%；
(6) cold brakes: deviation ratio=11%≤20% of μ cold and nominal friction coefficient μ nom.
It is wherein required in industry are as follows: (1) nominal coefficient of friction: nom0.38 ± 0.038 μ；(2) speed sensitivity: μ f (v)
With deviation ratio≤20% of the average friction coefficient μm ean during test；(3) hydraulic sensitive: μ f (p) and test process
In average friction coefficient μm ean deviation ratio≤20%；(4) temperature sensitivity: being averaged and rub during μ f (T) and test
Wipe deviation ratio≤20% of coefficient μm ean；(5) hot braking: the μ fading and average friction coefficient μ during test
Deviation ratio≤20% of mean；(6) cold brakes: deviation ratio≤20% of μ cold and nominal friction coefficient μ nom.
From the above data, it can be seen that brake block friction material of the invention is in different pressures, friction speed, different temperatures
Lower stable friction performance.
Effect example 7
Five parts are randomly selected to the brake block friction material that embodiment 1 obtains, be denoted as respectively product A, product B, products C,
Product D and product E, product A, product B, products C, product D and product E carry out shear at high temperature test, testing standard GB/T
22309-2008；Test result is as shown in table 6 below:
6 product A of table, product B, products C, the shear at high temperature performance of product D and product E
| Serial number | Product A | Product B | Products C | Product D | Product E |
| Shear strength (MPa) | 2.62 | 2.58 | 2.47 | 2.76 | 2.67 |
As can be seen from the above table, product of the invention can satisfy the shear at high temperature performance requirement in industry, effectively avoid
The obscission of continuous braking rear braking piece is carried out in automobile.
Effect example 8
Five parts are randomly selected to the brake block friction material that embodiment 1 obtains, be denoted as respectively product A, product B, products C,
Product D and product E, product A, product B, products C, product D and product E carry out room temperature shearing test, testing standard GB/T
22309-2008；Test result is as shown in table 7 below:
7 product A of table, product B, products C, product D and product E room temperature cutting performance
| Serial number | Product A | Product B | Products C | Product D | Product E |
| Shear strength (MPa) | 4.57 | 5.27 | 5.02 | 5.33 | 4.95 |
As can be seen from the above table, the shear strength of brake block friction material of the invention is high, product of the invention compared to
For professional standard and other most of products, tool has great advantage, and effectively prevents in full load, automotive brake pads may be sent out
Raw landing phenomenon, improves safety coefficient.
Effect example 9
Five parts are randomly selected to the brake block friction material that embodiment 1 obtains, be denoted as respectively product A, product B, products C,
Product D and product E, product A, product B, products C, product D and product E carry out normal temperature compressed performance test, testing standard GB/
T 22311-2008；Test result is as shown in table 8 below:
8 product A of table, product B, products C, the normal temperature compressed performance of product D and product E
| Serial number | Product A | Product B | Products C | Product D | Product E |
| Data (μm) | 142 | 145 | 144 | 148 | 155 |
As can be seen from the above table, the compression variable of brake block friction material of the invention is smaller, most compared in industry
Number product compression variable is greater than for 200 μm, and product of the invention is normal temperature compressed to be had excellent performance, and automotive brake pads is effectively prevented
Excessive wear in use.
Based on the above embodiments and effect example is it can be seen that the brake block friction material of the present embodiment passes through between each component
Coordinated and the stringent screening of each component content finally is able to satisfy the properties of product in industry to want
It asks, and the stability of portion of techniques effect such as frictional behaviour and comfort property are excellent, compared to other products in industry
Speech, the brake block friction material of the present embodiment can be achieved at the same time a variety of excellent properties, have both high-comfort and high security, this
The production method of the brake block friction material of embodiment is simple, is suitable for promoting.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of brake block friction material, which is characterized in that it includes following component that it is formulated by mass percentage: 7~10%
Resin, 1~3% tyre talc, 1~3% nitrile rubber powder, 3~4% Frication powder, 1~5% antimony trisulfide, 8~
15% barium sulfate, 2~4% calcium hydroxide, 1~3% calcium carbonate, 1~3% chrome green, 3~6% magnesia, 4~
6% iron oxide black, 5~7% brass powder, 1~3% zinc powder, 2~4% aramid fiber, 1~4% cellulose fibre, 10~
15% crystal whisker of hexa potassium titanate, 6~9 red copper fiber and 2~3% SLS solid lubricant.
2. brake block friction material as described in claim 1, which is characterized in that it includes such as the following group by mass percentage
Point: 8~10% resin, 2~3% tyre talc, 2~3% nitrile rubber powder, 3.5~4% Frication powder, 2~5%
Antimony trisulfide, 9~15% barium sulfate, 3~4% calcium hydroxide, 2~3% calcium carbonate, 2~3% chrome green, 4~6%
Magnesia, 5~6% iron oxide black, 6~7% brass powder, 1.5~3% zinc powder, 3~4% aramid fiber, 1.5~4% fiber
Cellulose fiber, 11~15% crystal whisker of hexa potassium titanate, 6.5~9 red copper fiber and 2.5~3% SLS solid lubricant.
3. brake block friction material as described in claim 1, which is characterized in that it includes such as the following group by mass percentage
Point: 9% resin, 3% tyre talc, 2.5% nitrile rubber powder, 4% Frication powder, 4% antimony trisulfide, 15% sulfuric acid
Barium, 4% calcium hydroxide, 3% calcium carbonate, 2% chrome green, 5% magnesia, 6% iron oxide black, 7% brass powder,
1.5% zinc powder, 4% aramid fiber, 3% cellulose fibre, 15% crystal whisker of hexa potassium titanate, 9 red copper fiber and 3%
SLS solid lubricant.
4. brake block friction material as claimed in claim 2, which is characterized in that its component by mass percentage are as follows: 9%
Resin, 3% tyre talc, 2.5% nitrile rubber powder, 4% Frication powder, 4% antimony trisulfide, 15% barium sulfate, 4%
Calcium hydroxide, 3% calcium carbonate, 2% chrome green, 5% magnesia, 6% iron oxide black, 7% brass powder, 1.5% zinc powder,
4% aramid fiber, 3% cellulose fibre, 15% crystal whisker of hexa potassium titanate, 9 red copper fiber and 3% SLS solid lubricant.
5. such as the described in any item brake block friction materials of Claims 1 to 4, which is characterized in that the parameter of the brass powder are as follows:
Zn content: 19.5~20%；Cu content 80~80.5%；Screening degree: -200 mesh percent of pass 95%；The brass powder is purchased from Shanghai
Nine metal powder Co., Ltds, section.
6. the production method of brake block friction material as claimed in any one of claims 1 to 5, which is characterized in that it includes such as
Lower step:
S1, each raw material component mixed as mass fraction；
S2, the mixture after S1 mixed processing is subjected to hot-pressing processing；
S3, the product after S2 hot-pressing processing is subjected to curing process；
S4, to obtained after S3 curing process brake block friction material carry out blasting treatment.
7. the production method of brake block friction material as claimed in claim 6, which is characterized in that in the S1, mixing
Revolving speed is 2895~2905rpm；The mixed time is 25min；Maximum mixing temperature is 50 DEG C.
8. the production method of brake block friction material as claimed in claim 6, which is characterized in that in the S2, hot pressing
Temperature are as follows: 153~163 DEG C of upper mold, 140~150 DEG C of middle mould, 145~155 DEG C of lower die；The pressing pressure of hot pressing is 35MPa.
9. the production method of brake block friction material as claimed in claim 6, which is characterized in that in the S3, consolidate
Change the temperature and time of processing are as follows: (1) room temperature is warming up to 80 DEG C by 0.5h, the constant temperature 1h at 80 DEG C；(2) 80 DEG C are passed through 0.5h
120 DEG C are warming up to, the constant temperature 1h at 120 DEG C；(3) 120 DEG C are warming up to 150 DEG C by 1h, the constant temperature 2h at 150 DEG C；(4)150
DEG C 180 DEG C are warming up to by 1h, the constant temperature 2h at 180 DEG C；(5) 180 DEG C are warming up to 200 DEG C by 1h, the constant temperature at 200 DEG C
2h；(6) 200 DEG C are warming up to 220 DEG C by 1h, the constant temperature 3h at 220 DEG C.
10. the production method of brake block friction material as claimed in claim 6, which is characterized in that in the S4, sandblasting
Material is the 7# grains of sand, and the rate of sandblasting is 500/30min.
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| CN113586637A (en) * | 2021-07-02 | 2021-11-02 | 中铁隆昌铁路器材有限公司 | Synthetic brake pad for power-concentrated motor train unit vehicle and preparation method thereof |
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