CN1202501A - Friction material for braking control system - Google Patents
Friction material for braking control system Download PDFInfo
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- CN1202501A CN1202501A CN 97112491 CN97112491A CN1202501A CN 1202501 A CN1202501 A CN 1202501A CN 97112491 CN97112491 CN 97112491 CN 97112491 A CN97112491 A CN 97112491A CN 1202501 A CN1202501 A CN 1202501A
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- carbon fiber
- friction materials
- modified phenolic
- phenolic resins
- glass fibre
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Abstract
The friction material is made of carbon fiber as reinforcing material, modified phenolic resin as binder and friction property regulators. It produces no environmental pollution and no hazard to body, has stable friction coefficient, low wear rate, heat resistance and other advantages, and is suitable for brake and clutch facing in vehicles and industrial machinery.
Description
The invention belongs to a kind of friction materials that is used for braking control system, a kind of more precisely friction materials that constitutes by strongthener, binding agent and frictional property regulator.
Vehicle brake and clutch facing adopted asbestos to make mostly in the past.Because asbestos material produces asbestos dust in manufacturing and braking procedure, be detrimental to health, many countries have all limited even have forbidden using in friction materials.Under this background, countries in the world begin the friction materials that positive development does not contain asbestos, and these materials have generally adopted powder metallurgy, carbon/carbon material, glass fibre and organic fibre etc. for strengthening the polymer-based material of body.Powder metallurgy brake flat sintering circuit power consumption when making is high, and brake oil is big, the antithesis serious wear.Carbon/carbon material complex manufacturing technology, cost height generally are used for the aircraft brake sheet.Also there are some defectives in the friction materials that common organic fibre is made, the friction materials that does not contain asbestos as CN1078297 patent application introduction, make framework material with modification polyvinyl and glass fibre, make binding agent and add frictional property regulator and make with modified phenolic resins, this friction materials is not wear-resisting, and frictional coefficient is also stable inadequately.
The object of the present invention is to provide a kind of new-type friction material, it overcomes the defective of above-mentioned materials, and not only cost is low, and manufacture craft is simple, and stable friction factor, and wear rate is low, and temperature tolerance is good, and the antithesis wearing and tearing are little.
Friction materials of the present invention is to be made of strongthener, binding agent and frictional property regulator.Described strongthener is the mixture of carbon fiber and glass fibre; Described binding agent is a modified phenolic resins; Described frictional property regulator comprises carbon black, short copper wire, graphite, chromite powder, barium sulfate, talcum powder, the Zinic stearas cut.More than the weight percentage of each component be (the total restatement 100% of material): carbon fiber 5～20%, best 5～15%, glass fibre 3～12%, best 3～10%, modified phenolic resins 15～25%, best 15～20%, frictional property regulator 45～75%, best 55～70%.Wherein graphite 5～10%, carbon black 3～10%, copper wire 3～8%, barium sulfate 10～25%, chromite powder 10～15%, talcum powder 5～20%, Zinic stearas 2～5%.Described frictional property regulator is 1,2 grades of commodity of commercially available technical grade.
The present invention adopts carbon fiber and glass fibre to make strongthener.Carbon fiber has good temperature tolerance, erosion resistance and self lubricity, and it can improve the performance such as wear-resisting, heat-resisting, corrosion-resistant of friction materials.The carbon fiber that uses among the present invention can be asphalt-based carbon fiber, polyacrylonitrile carbon fiber etc., and length is 5～20mm.Employed glass fibre is the alkali free glass fibre of handling through coupling agent (being generally KH550), and length is 5～10mm.
The present invention adopts resin modified phenol resin to make binding agent, preferably nylon modified phenolic resin or nitrile rubber modified phenolic resin.The preparation method of the resol of modified nylon is that the ratio in nylon and phenolic aldehyde 1: 3～6 adds nylon (being generally methylol nylon) in resol, stirs then.The preparation method of nitrile rubber modified phenolic resin is that order adds vulcanizing agent (being generally SULPHUR POWDER) in paracril earlier, promotor (is generally thiazoles, as mercaptobenzothiazole, dibenzothiazyl disulfide), promoting agent (is generally metal oxide, as zinc oxide) mixing, mix with resol in the ratio of paracril and resol 1: 3～8 again, stir then.Vulcanizing agent content is 1～3 part in 100 parts of (weight part) paracrils, and accelerator content is that 0.5～2 part, active agent content are 0.5～5 part.The resol general requirement free phenol content that the present invention adopts is less than 14%.
Friction materials of the present invention prepares by the following method: earlier modified phenolic resins is diluted with a small amount of solvent, add frictional property regulator, carbon fiber and glass fibre again, make Preblend after stirring.Preblend oven dry back is begun compacting 75～90 ℃ the time, and pressure is 15～25Mpa, is warming up to 155～165 ℃ with 2 ℃/minute, be incubated 2～3 minutes/millimeter, after the demoulding 170 ℃ down processing made goods in 1 hour.
The present invention has following advantage: owing to adopted carbon fiber and glass fibre is strongthener, modified phenolic resins is a binding agent, added suitable frictional property regulator again, so the friction materials over-all properties of making further improves, particularly has highly stable frictional coefficient, in 100～300 ℃ of scopes, frictional coefficient is more near the benchmark frictional coefficient of JF04-2A (the First Automobile Group regulation frictional coefficient control criterion), temperature tolerance, the wear resistance of material are all better simultaneously, and wear rate is significantly less than GB GB5763-86 set upper limit.
Further specify characteristics of the present invention below by embodiment.
Example 1
Component concentration:
Starting material title: weight (gram)
Polyacrylonitrile carbon fiber 8
Glass fibre 6
Nitrile rubber modified phenolic resin 18
Graphite 8
Carbon black 8
The short copper wire 6 of cutting
Chromite powder 12
Talcum powder 18
Barium sulfate 16
Zinic stearas 2
The preparation method: (Lanzhou rubber plant produces with paracril, trade mark paracril-40) resin modified phenol resin, stir with acetone diluted, adding frictional property regulator stirs, add polyacrylonitrile carbon fiber (toray company produce, trade mark T300) again, glass fibre is made Preblend after stirring.Preblend oven dry back will be begun compacting at 80 ℃, and pressure is 15Mpa, is warming up to 160 ℃ with 2 ℃/minute, is incubated 2 minutes/millimeter, after the demoulding 170 ℃ of following aftertreatments 1 hour goods.
Example 2
Component concentration:
Starting material title: weight (gram)
Asphalt-based carbon fiber 12
Glass fibre 8
Nylon resol 20
Graphite 6
Carbon black 5
The short copper wire 5 of cutting
Chromite powder 14
Talcum powder 6
Barium sulfate 20
Zinic stearas 4 preparation methods: nylon resol is stirred with alcohol dilution, adding frictional property regulator again stirs, add asphalt-based carbon fiber (Chinese East Asia carbon fiber company produces, trade mark C-50) again, glass fibre is made Preblend after stirring.Will Preblend the oven dry back begin compacting at 80 ℃, pressure is 25Mpa, is warming up to 160 ℃ with 2 ℃/minute, be incubated 2 minutes/millimeter, after the demoulding 170 ℃ down processing 1 hour goods.
Example 3
This example is a performance test.The friction materials that is obtained by example 1 and example 2 is by frictional coefficient and the wear rate of GB5763-86 test method with constant speed formula frictional testing machines test material, sees Table 1 and table 2 respectively.Simultaneously in order to contrast, with the First Automobile Group with reference to the frictional coefficient and the wear rate control criterion (JF04-2A) of foreign standard code and contrast among the patent application CN1078297 (friction materials that does not contain asbestos) two examples as a comparison case 1 and Comparative Examples 2 also list in the table.
Table 1 frictional coefficient contrast (μ)
Table 2 wear rate contrast (10
-7Cm
3/ N.m)
| Temperature ℃ | Example 1 | Comparative Examples 1 | Example 2 | Comparative Examples 2 | The JF04-2A standard |
| ??100 ??150 ??200 ??250 ??300 | ??0.39 ??0.42 ??0.43 ??0.43 ??0.42 | ??0.378 ??0.450 ??0.504 ??0.512 ??0.400 | ??0.40 ??0.40 ??0.43 ??0.44 ??0.41 | ??0.330 ??0.464 ??0.498 ??0.424 ????/ | ?0.42±0.06 ?0.42±0.06 ?0.42±0.08 ?0.42±0.09 ?0.42±0.10 |
| Temperature ℃ | Example 1 | Comparative Examples 1 | Example 2 | Comparative Examples 2 | The JF04-2A standard |
| ??100 ??150 ??200 ??250 ??300 | ?0.098 ?0.141 ?0.129 ?0.138 ?0.125 | ????0.20 ????0.81 ????0.34 ????0.30 ????0.23 | ?0.113 ?0.089 ?0.053 ?0.057 ?0.165 | ????0.10 ????0.12 ????0.06 ????0.09 ????/ | ????0.10 ????0.20 ????0.30 ????0.40 ????0.50 |
Can find that by contrast frictional coefficient of the present invention rangeability in 100～300 ℃ of scopes is littler, more near the benchmark frictional coefficient of the frictional coefficient control criterion of JF04-2A regulation.Under the situation of uniform temp, wear rate of the present invention is also compared lower than patent wear rate.Though the wear rate of Comparative Examples 2 is lower, use temperature is limited in 250 ℃, and temperature tolerance is less better.
Claims (7)
1. friction materials that is used for braking control system, it is by strongthener, binding agent and frictional property regulator constitute, it is characterized in that strongthener is the mixture of carbon fiber and glass fibre, binding agent is a modified phenolic resins, frictional property regulator comprises carbon black, graphite, the short copper wire of cutting, chromite powder, barium sulfate, talcum powder, Zinic stearas, more than the weight percentage of each component be (friction materials amounts to 100%): carbon fiber 5～20%, glass fibre 3～12%, modified phenolic resins 15～25%, frictional property regulator 45～75%, wherein graphite 5～10%, carbon black 3～10%, the short copper wire 3～8% of cutting, chromite powder 10～15%, barium sulfate 10～25%, talcum powder 5～20%, Zinic stearas 2～5%.
2. friction materials according to claim 1, the weight percentage that it is characterized in that each component is (friction materials gross weight meter 100%): carbon fiber 5～15%, glass fibre 3～10%, modified phenolic resins 15～20%, frictional property regulator 55～70%.
3. friction materials according to claim 1 and 2 is characterized in that carbon fiber is an asphalt-based carbon fiber.
4. friction materials according to claim 1 and 2 is characterized in that carbon fiber is a polyacrylonitrile carbon fiber.
5. friction materials according to claim 1 and 2 is characterized in that modified phenolic resins is a nylon modified phenolic resin, and the ratio of nylon and resol is 1: 3～6.
6. friction materials according to claim 1 and 2 is characterized in that modified phenolic resins is acrylonitrile butadiene rubber modified resol, and the ratio of paracril and resol is 1: 3～8.
7. the manufacture method of the described friction materials of claim 1, it is characterized in that earlier the modified phenolic resins solvent cut, add frictional property regulator, carbon fiber, glass fibre again, make Preblend after stirring, Preblend oven dry back is suppressed under 75～90 ℃, 15～25MPa, be warming up to 155～165 ℃ with 2 ℃/minute, be incubated 2～3 minutes/millimeter, handle down at 170 ℃ after the demoulding and promptly made goods in one hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97112491A CN1065251C (en) | 1997-06-18 | 1997-06-18 | Friction material for braking control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97112491A CN1065251C (en) | 1997-06-18 | 1997-06-18 | Friction material for braking control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1202501A true CN1202501A (en) | 1998-12-23 |
| CN1065251C CN1065251C (en) | 2001-05-02 |
Family
ID=5172297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97112491A Expired - Fee Related CN1065251C (en) | 1997-06-18 | 1997-06-18 | Friction material for braking control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1065251C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100390221C (en) * | 2006-06-26 | 2008-05-28 | 北京航空航天大学 | Carbon-base brake material for track vehicle |
| CN101671536B (en) * | 2009-08-29 | 2011-03-30 | 桂林星火机械制造有限公司 | Carbon fiber friction material and application thereof for manufacturing friction layer of vehicle steel synchronizer tooth ring |
| CN102019695A (en) * | 2010-10-26 | 2011-04-20 | 陕西科技大学 | Preparation method of chopped carbon fiber reinforced phenolic resin base composite material |
| CN101429297B (en) * | 2008-12-17 | 2011-09-07 | 黄山奔马集团有限公司 | Friction plate material and its use method |
| CN101392156B (en) * | 2008-10-28 | 2012-08-22 | 陕西华夏粉末冶金有限责任公司 | Preparation of cone ring friction layer for synchronization device and bonding technique thereof |
| CN105112014A (en) * | 2015-08-03 | 2015-12-02 | 来安县隆华摩擦材料有限公司 | Asphalt automobile clutch friction material, and preparation method therefor |
| CN105160752A (en) * | 2015-09-18 | 2015-12-16 | 李永强 | Coin sorting machine |
| CN105154006A (en) * | 2015-09-28 | 2015-12-16 | 东营博瑞制动系统有限公司 | Polyacrylonitrile staple fiber friction material |
| CN106062061A (en) * | 2014-03-07 | 2016-10-26 | 法雷奥摩擦材料公司 | Friction lining with improved resistance to wear, dry friction clutch comprising such a lining and methods of manufacturing such a lining and such a clutch |
| CN106674629A (en) * | 2016-12-14 | 2017-05-17 | 安徽德耐孚汽车减震科技技术有限公司 | High-strength and abrasion-resistant rubber plug and preparation technology thereof |
| CN107353029A (en) * | 2017-08-29 | 2017-11-17 | 瑞安市洪江车业有限公司 | A kind of ceramic friction base material of brake block |
| CN112266724A (en) * | 2020-11-02 | 2021-01-26 | 佛山市协通橡塑制品有限公司 | Coating for wear-resistant layer of running board, preparation method of coating and running board |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040147192A1 (en) * | 2003-01-24 | 2004-07-29 | Ballard Material Products Inc. | Carbon fiber friction material |
| CN101664979B (en) * | 2009-10-09 | 2011-09-28 | 山东双连制动材料有限公司 | Preparation method of friction material |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS594455B2 (en) * | 1978-06-26 | 1984-01-30 | 呉羽化学工業株式会社 | Friction material with excellent wear resistance and its manufacturing method |
| JPS6369833A (en) * | 1986-09-11 | 1988-03-29 | Toyota Motor Corp | Production of unground and molded friction member |
| JPH0286629A (en) * | 1988-09-22 | 1990-03-27 | Aisin Chem Co Ltd | Manufacture of asbestos-free friction material |
-
1997
- 1997-06-18 CN CN97112491A patent/CN1065251C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100390221C (en) * | 2006-06-26 | 2008-05-28 | 北京航空航天大学 | Carbon-base brake material for track vehicle |
| CN101392156B (en) * | 2008-10-28 | 2012-08-22 | 陕西华夏粉末冶金有限责任公司 | Preparation of cone ring friction layer for synchronization device and bonding technique thereof |
| CN101429297B (en) * | 2008-12-17 | 2011-09-07 | 黄山奔马集团有限公司 | Friction plate material and its use method |
| CN101671536B (en) * | 2009-08-29 | 2011-03-30 | 桂林星火机械制造有限公司 | Carbon fiber friction material and application thereof for manufacturing friction layer of vehicle steel synchronizer tooth ring |
| CN102019695A (en) * | 2010-10-26 | 2011-04-20 | 陕西科技大学 | Preparation method of chopped carbon fiber reinforced phenolic resin base composite material |
| CN106062061A (en) * | 2014-03-07 | 2016-10-26 | 法雷奥摩擦材料公司 | Friction lining with improved resistance to wear, dry friction clutch comprising such a lining and methods of manufacturing such a lining and such a clutch |
| CN106062061B (en) * | 2014-03-07 | 2020-05-05 | 法雷奥摩擦材料公司 | Friction lining, dry clutch and method for producing such lining and such clutch |
| CN105112014A (en) * | 2015-08-03 | 2015-12-02 | 来安县隆华摩擦材料有限公司 | Asphalt automobile clutch friction material, and preparation method therefor |
| CN105160752A (en) * | 2015-09-18 | 2015-12-16 | 李永强 | Coin sorting machine |
| CN105154006A (en) * | 2015-09-28 | 2015-12-16 | 东营博瑞制动系统有限公司 | Polyacrylonitrile staple fiber friction material |
| CN106674629A (en) * | 2016-12-14 | 2017-05-17 | 安徽德耐孚汽车减震科技技术有限公司 | High-strength and abrasion-resistant rubber plug and preparation technology thereof |
| CN107353029A (en) * | 2017-08-29 | 2017-11-17 | 瑞安市洪江车业有限公司 | A kind of ceramic friction base material of brake block |
| CN112266724A (en) * | 2020-11-02 | 2021-01-26 | 佛山市协通橡塑制品有限公司 | Coating for wear-resistant layer of running board, preparation method of coating and running board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1065251C (en) | 2001-05-02 |
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