CN104421362A - Material formula of brake pad of heavy-duty freight car - Google Patents
Material formula of brake pad of heavy-duty freight car Download PDFInfo
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- CN104421362A CN104421362A CN201310367567.8A CN201310367567A CN104421362A CN 104421362 A CN104421362 A CN 104421362A CN 201310367567 A CN201310367567 A CN 201310367567A CN 104421362 A CN104421362 A CN 104421362A
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Abstract
The invention discloses a material formula of a brake pad of a heavy-duty freight car. The material formula involves the following materials in percentage by weight: 2 to 10% of light calcium carbonate, 10 to 35 parts of blanc fixe, 3 to 15 parts of graphite, 1 to 5 parts of carbon black, 5 to 20 parts of coke blacking, 2 to 10 parts of expanded vermiculite, 10 to 35 parts of silicone modified phenolic resin, 5 to 15 parts of aramid pulp, 5 to 15 parts of fiberglass, and 2 to 10 parts of calcium oxide. With the adoption of the formula, the prepared brake pad of the heavy-duty freight car is small in metal content, reliable in performance and applicable to high-strength braking environment of the heavy-duty freight car.
Description
Technical field
The present invention relates to auto industry field, particularly relate to the material prescription of brake block.
Background technique
The function of brake block absorbs power by friction, and vehicle is worked safely and reliably; Heavy-duty freight car generally adopts drum brakes, drum-type brake pad adopts riveting method to be connected with break usually, because heavy-duty freight car quality is large, inertia is strong, the powerful frictional force produced in the braking process of automobile, be all the riveted place acting directly on brake block and break greatly, this friction and wear behavior to brake block, integral hardness etc. are proposed high requirement; Brake block can adopt composite ordinary hot platen press to obtain, and hot pressing temperature is below 200 DEG C, and wherein, the raw material of brake block are generally divided into Bond, reinforcing fiber, frictional property regulator and filler four most of:
Bond is the important constituent element in friction material, it can affect the heat fade performance of material, restorability, polishing machine and mechanical property, general employing phenolic resin, but easily there is serious thermolysis when operating temperature is higher in this kind of resin matrix, can be rubbed during heavy-duty freight car brake generation amount of heat, and phenolic resin is not very good as the Bond of heavy-duty freight car brake block;
Reinforcing fiber plays strengthening agent in friction material, and traditional material generally adopts the mineral fibre such as asbestos, adds a small amount of Steel Fibre, copper fiber and other a small amount of mineral fibre simultaneously; Because asbestos can distribute toxicity after heating, at present resist by international market, and steel fiber cost is higher, not ideal enough equally;
Frictional property regulator can be divided into two classes, and a class is the antifriction material that Mohs hardness is generally less than 2, it add the wear resistance that can improve material, reduce noise and reduce friction factor.This kind of material mainly contains: graphite, molybdenum disulfide, lead and copper etc.; Another kind of frictional property regulator is the friction resistance material that Mohs hardness is generally greater than 4, it add the friction factor that can increase material;
Filler mainly adds in the form of a powder, and its effect is a lot, such as, add copper powder and can form transfer membrane between friction material and antithesis, friction torque and stable friction factor can be improved, the damage to mating plate can be reduced again, improve the wear-resisting property of whole friction pair;
In addition, in brake flat production process, due to the variable factor of raw material---moisture content is difficult to control, the moisture content exceeded standard can form hot gas in brake block pressing process, thus cause product bubble and scrap, have impact on environment, and the expense that adds drops into, simultaneously this strand of hot gas also may the operator of heat shock hand operation, for producing safety strip potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of reliability high, and can reduce the moisture content in raw material, and safe and efficient rate ground produces the composition of raw materials of heavy-duty freight car brake block.
Technological scheme of the present invention is: a kind of material prescription of heavy-duty freight car brake block, and the material used forms as following weight percent: precipitated calcium carbonate 2-10, heavy crystalline flour 10-35, graphite 3-15, carbon black 1-5, coke powder 5-20, expanded vermiculite 2-10, Effect of Organosilicon-modified Phenol-formaldehyde Resin 10-35, aramid fibre pulp 5-15, glass fibre 5-15, calcium oxide 2-10.
The invention has the beneficial effects as follows: phenol-formaldehyde resin modified retains the good cohesiveencess of phenolic resin, and there is higher heat resistance, can at 260 DEG C reasonable time the in of job applications, aramid fibre pulp obtains after carrying out surface fibrillation process to aramid fibre, the surface structure of its uniqueness drastically increases the grasping force of mixture, the heavy-duty freight car brake block metal-containing rate adopting above-mentioned formula to prepare is low, reliable performance, be very suitable for the braking environment of heavy-duty freight car high strength, adding of calcium oxide not only can get rid of Residual water in raw material, improve the yield rate adding man-hour, increase the safety of production environment, and the integral hardness of brake block can be strengthened to a certain extent.
Embodiment
Below by embodiment, technological scheme of the present invention is described in further detail.
Embodiment 1: a kind of material prescription of heavy-duty freight car brake block, and following composition proportion got by the material used: precipitated calcium carbonate 10 parts, heavy crystalline flour 22 parts, 8 parts, graphite, carbon black 5 parts, coke powder 10 parts, expanded vermiculite 5 parts, Effect of Organosilicon-modified Phenol-formaldehyde Resin 20 parts, aramid fibre pulp 10 parts, 5 parts, glass fibre, 5 parts, calcium oxide.
Embodiment 2: a kind of material prescription of heavy-duty freight car brake block, and following composition proportion got by the material used: precipitated calcium carbonate 5 parts, heavy crystalline flour 27 parts, 10 parts, graphite, carbon black 3 parts, coke powder 15 parts, expanded vermiculite 10 parts, Effect of Organosilicon-modified Phenol-formaldehyde Resin 15 parts, aramid fibre pulp 5 parts, 5 parts, glass fibre, 5 parts, calcium oxide.
Embodiment 3: a kind of material prescription of heavy-duty freight car brake block, and following composition proportion got by the material used: precipitated calcium carbonate 2 parts, heavy crystalline flour 8 parts, 15 parts, graphite, carbon black 5 parts, coke powder 20 parts, expanded vermiculite 2 parts, Effect of Organosilicon-modified Phenol-formaldehyde Resin 30 parts, aramid fibre pulp 5 parts, 3 parts, glass fibre, 10 parts, calcium oxide.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited to above-mentioned citing; those skilled in the art; in essential scope of the present invention, the change made, remodeling, interpolation or replacement, all should belong to protection scope of the present invention.
Claims (1)
1. a material prescription for heavy-duty freight car brake block, is characterized in that: the material used forms as following weight percent: precipitated calcium carbonate 2-10, heavy crystalline flour 10-35, graphite 3-15, carbon black 1-5, coke powder 5-20, expanded vermiculite 2-10, Effect of Organosilicon-modified Phenol-formaldehyde Resin 10-35, aramid fibre pulp 5-15, glass fibre 5-15, calcium oxide 2-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310367567.8A CN104421362A (en) | 2013-08-21 | 2013-08-21 | Material formula of brake pad of heavy-duty freight car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310367567.8A CN104421362A (en) | 2013-08-21 | 2013-08-21 | Material formula of brake pad of heavy-duty freight car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104421362A true CN104421362A (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310367567.8A Pending CN104421362A (en) | 2013-08-21 | 2013-08-21 | Material formula of brake pad of heavy-duty freight car |
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| CN (1) | CN104421362A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419728A (en) * | 2015-12-08 | 2016-03-23 | 安徽创新电磁离合器有限公司 | Mixture of brake pad friction material |
| CN105422698A (en) * | 2015-12-08 | 2016-03-23 | 安徽创新电磁离合器有限公司 | Brake block mixture resistant to high temperature |
| CN105422699A (en) * | 2015-12-08 | 2016-03-23 | 安徽创新电磁离合器有限公司 | Friction plate blank and manufacturing method thereof |
| CN105952826A (en) * | 2016-05-12 | 2016-09-21 | 苏州爱盟机械有限公司 | High-performance bicycle brake pad |
| CN107246449A (en) * | 2017-06-05 | 2017-10-13 | 海盐欧亚特汽配有限公司 | A kind of durable drum-type brake pad |
| CN108180237A (en) * | 2017-12-27 | 2018-06-19 | 重庆红宇摩擦制品有限公司 | Friction material of wriggling noise and preparation method thereof can be reduced |
Citations (5)
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| DE20205406U1 (en) * | 2002-04-03 | 2002-07-25 | Vogman Solomon | Material for a wear-resistant lining for clutch discs of means of transport |
| CN101178104A (en) * | 2007-11-27 | 2008-05-14 | 信义集团公司 | Method for producing brake block by scaly tartar salt |
| CN102635653A (en) * | 2012-04-13 | 2012-08-15 | 济南金麒麟刹车***有限公司 | Multielement resin base carbon compound disc-type braking pad and preparation method thereof |
| CN102878232A (en) * | 2012-09-29 | 2013-01-16 | 杭州克尔菲利科技有限公司 | Ceramic-fiber-paper-based friction plate and production method thereof |
| CN103059806A (en) * | 2012-10-31 | 2013-04-24 | 瑞阳汽车零部件（仙桃）有限公司 | Friction material composition for ceramic brake pad |
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2013
- 2013-08-21 CN CN201310367567.8A patent/CN104421362A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20205406U1 (en) * | 2002-04-03 | 2002-07-25 | Vogman Solomon | Material for a wear-resistant lining for clutch discs of means of transport |
| CN101178104A (en) * | 2007-11-27 | 2008-05-14 | 信义集团公司 | Method for producing brake block by scaly tartar salt |
| CN102635653A (en) * | 2012-04-13 | 2012-08-15 | 济南金麒麟刹车***有限公司 | Multielement resin base carbon compound disc-type braking pad and preparation method thereof |
| CN102878232A (en) * | 2012-09-29 | 2013-01-16 | 杭州克尔菲利科技有限公司 | Ceramic-fiber-paper-based friction plate and production method thereof |
| CN103059806A (en) * | 2012-10-31 | 2013-04-24 | 瑞阳汽车零部件（仙桃）有限公司 | Friction material composition for ceramic brake pad |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419728A (en) * | 2015-12-08 | 2016-03-23 | 安徽创新电磁离合器有限公司 | Mixture of brake pad friction material |
| CN105422698A (en) * | 2015-12-08 | 2016-03-23 | 安徽创新电磁离合器有限公司 | Brake block mixture resistant to high temperature |
| CN105422699A (en) * | 2015-12-08 | 2016-03-23 | 安徽创新电磁离合器有限公司 | Friction plate blank and manufacturing method thereof |
| CN105952826A (en) * | 2016-05-12 | 2016-09-21 | 苏州爱盟机械有限公司 | High-performance bicycle brake pad |
| CN107246449A (en) * | 2017-06-05 | 2017-10-13 | 海盐欧亚特汽配有限公司 | A kind of durable drum-type brake pad |
| CN108180237A (en) * | 2017-12-27 | 2018-06-19 | 重庆红宇摩擦制品有限公司 | Friction material of wriggling noise and preparation method thereof can be reduced |
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Application publication date: 20150318 |
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