CN104179860A - Copper-free organic ceramic brake pad - Google Patents
Copper-free organic ceramic brake pad Download PDFInfo
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- CN104179860A CN104179860A CN201410368159.9A CN201410368159A CN104179860A CN 104179860 A CN104179860 A CN 104179860A CN 201410368159 A CN201410368159 A CN 201410368159A CN 104179860 A CN104179860 A CN 104179860A
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- brake block
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Abstract
The invention discloses a copper-free organic ceramic brake pad which comprises an adhesive, a reinforcing material, a friction performance modifier and filler. Modified sulfide, modified graphite, the friction material reinforcing agent and the friction performance modifier are adopted in the formula of a friction material, so that the heat resistance, anti-declining performance, noise reduction property and impact resistance of the friction material are improved, the service life can be prolonged, and the corresponding comprehensive usability of the friction material can be improved. The advantages of stable compression performance, excellent flexibility and lubrication property and the like of the modified sulfide and the modified graphite are used for the formula design of the friction material, so that high-temperature friction performance is guaranteed, high-temperature wear of a product is smaller, friction couple is not damaged, brake noise is reduced, high-temperature cracks are avoided, environmental pollution is reduced, and the like.
Description
Technical field
The present invention relates to the brake block in auto industry field, be specifically related to a kind of without copper organic ceramic brake block.
Background technique
As the brake block of vehicle key component at present by homogenous material to meeting Materials, the quality of its quality directly affects the reliability of machine and operator's life safety, along with scientific and technical development, the speed of people to transport facility and dynamic power machine, load and security requirement are more and more higher, bullet train, heavy-duty freight car, car, racing car, the heavy duties such as motorcycle, run at high speed, braking frequently civilian launch vehicle etc. is all fast to responding, friction factor is high and stable, pollution-free, density is little, the high-quality friction material that long service life environmental suitability is strong has proposed urgent requirement, the friction material of pottery organic formula content arises at the historic moment, but its technology is ripe not enough in China, in use exist impact strength poor, the decline of friction factor high temperature is large, product is prone to the shortcomings such as crackle.And from microcosmic, brake block surface is rough, in the time of brake, what contact brake disc is some kicks, and this will cause friction factor low, has noise producing.
Summary of the invention
Object of the present invention is exactly the defect existing for prior art, a kind of heat resistance, fade resistance, reduction noise and the impact resistance that can improve friction material is provided, can increase the service life, ensure high temperature friction performance, make product less at high temperature wear, do not damage friction pair, reduce brake noise, overcome heat cracking, reduce environmental pollution without copper organic ceramic brake block.
Its technological scheme is: without copper organic ceramic brake block, comprise binder, reinforcing material, frictional property regulator and filler, be specially by the raw material of following weight percentage and make:
Phenolic resin 6-13% mineral fibre 10-22% iron oxide 5-7%
Graphite 6-14% barium sulphate 12-20% calcium carbonate 10-14%
Aramid fibre pulp 1-3% potassium titanate 12-20% tyre talc 1-5%
Modified sulphur compound 2-8% modified graphite 2-8%.
Wherein optimum weight percentage is:
Phenolic resin 8% mineral fibre 17% iron oxide 6%
Graphite 10% barium sulphate 16% calcium carbonate 12%
Aramid fibre pulp 2% potassium titanate 16% tyre talc 3%
Modified sulphur compound 5% modified graphite 5%.
Described phenolic resin is phenol-formaldehyde resin modified.
Described frictional property regulator comprises lapping paste and oiling agent, and described lapping paste comprises aluminium sesquioxide, iron oxide and magnesian one or more mixing; Described oiling agent comprises one or more mixing of graphite, modified graphite, molybdenum disulfide, mica and modified sulphur compound.
The present invention compared with prior art, have the following advantages: heat resistance, fade resistance, reduction noise and the impact resistance that can improve friction material, can increase the service life, ensure high temperature friction performance, make product less at high temperature wear, do not damage friction pair, reduce brake noise, overcome heat cracking, reduce environmental pollution.
Embodiment
Without copper organic ceramic brake block, comprise binder, reinforcing material, frictional property regulator and filler, be specially by the raw material of following weight percentage and make:
Phenolic resin 6-13% mineral fibre 10-22% iron oxide 5-7%
Graphite 6-14% barium sulphate 12-20% calcium carbonate 10-14%
Aramid fibre pulp 1-3% potassium titanate 12-20% tyre talc 1-5%
Modified sulphur compound 2-8% modified graphite 2-8%.
Wherein optimum weight percentage is:
Phenolic resin 8% mineral fibre 17% iron oxide 6%
Graphite 10% barium sulphate 16% calcium carbonate 12%
Aramid fibre pulp 2% potassium titanate 16% tyre talc 3%
Modified sulphur compound 5% modified graphite 5%.
Described phenolic resin is phenol-formaldehyde resin modified.
Described frictional property regulator comprises lapping paste and oiling agent, and described lapping paste comprises aluminium sesquioxide, iron oxide and magnesian one or more mixing; Described oiling agent comprises one or more mixing of graphite, modified graphite, molybdenum disulfide, mica and modified sulphur compound.
Wherein, Bond uses phenol-formaldehyde resin modified: after phenolic resin modified, the impact toughness of phenolic resin, cementability, mechanical strength, heat resistance, flame retarding, dimensional stability, curing rate and moulded manufacturability philosophy are improved.
Reinforcing material mineral fibre: the brake lining of production has the distinguishing features such as braking is steady reliably, high-temperature behavior is good, wear away little, low (nothing) noise, the life-span is long.
Lapping paste adopts iron oxide to add in friction material, can adjust the friction factor of braking material; Oiling agent employing graphite etc. can reduce the heat fade of friction material, stablizes the friction factor of friction material, can play good anti-attrition effect and self-lubricating function, can effectively protect again antithesis dish.
Filler uses barium sulphate, stable chemical nature, and nonmagnetic toxicity, has good flame resistance; Calcium carbonate, in use can vibration damping, anti-skidding, and noise reduction is inhaled ripple; Good combination property, friction factor is high, and wear-resisting property and resistance to heat are high; Stable friction performance, heat fade and hot restorability are better, high temperature friction and wear superior performance, life of product can improve 30%; Can reduce the virtue fiber that falls, the consumption of the high value materials such as red copper, reduces friction material cost greatly; Potassium titanate,
Tyre talc claims again rubber break flour, is the tire glue face that claims junked tire, removes curtain radial, and pulverizing processes.Composition cured natural rubber and butylbenzene vulcanizate.For friction material, work to increase wearing away the effect of making an uproar as elastic filler.
Reinforcing material uses aramid fibre pulp, aramid fibre pulp carries out obtaining after surface fibrillation processing to aramid fibre, its unique surface structure has greatly improved the grasping force of mixture, is therefore suitable as very much a kind of reinforcing fiber and is applied in friction and sealed product.Light yellow wadding is flower-shaped, be lint shape, its filoplume is abundant, intensity is high, good stability of the dimension, without fragility, high temperature resistant, corrosion-resistant, flexible, shrinkage is little, wear resistance good, surface area is large, can well be combined with other material, it is a kind of reinforcing material, moisture regain is 8%, and Mean length is 2-2.5mm, and surface area is 8m2/g.And be used as pad reinforcing material, and there is good resilience and sealability, health and environment, without harm, are only needed to add the pulp that be less than 5% conventionally, the intensity that obtains product is equivalent to the product that 50-60% asbestos fiber strengthens.Be used for strengthening the manufactured good such as friction, sealing material, can be used as the alternative of asbestos for friction sealed material, high performance heat resistant insulating paper and reinforced composite.It is a kind of intensity material of main part of extraordinary enhancing friction plate.
Modified graphite has conduction, heat conduction, high temperature resistant, ash is low, carbon content is high, have porous structure simultaneously, has adsorptivity, and thermal shock resistance, the feature that chemical stability is good, plasticity is good, play high temperature resistant, lubrication.Can reduce wear extent, to improving heat fade, reduce brake noise and have certain effect, reduce the shake of brake disc simultaneously, improve the travelling comfort of travelling.There is at normal temperatures good chemical stability, can be acidproof, alkaline-resisting and the corrosion of organic solvent-resistant, chemical stability is good.While use at normal temperatures, be able to take the acute variation of temperature and unlikely destruction, when temperature jump, Volume Changes is little, can not crack.
Modified sulphur compound: the hardness of modified sulphur compound is low, ductility good, so the kick on brake block polishes very soon, has following benefit: touch face contact by point, area of contact increases, and friction factor increases; Pressure, spread heat; Abrasion reduce, and the life-span increases; Can reduce noise, feel is good.
In addition, because modified sulphur compound fusing point is low, easily form liquid molten film, this has just protected brake block, brake disc effectively, and has reduced noise, can substitute copper in brake block completely, plays and reduces copper pollution, protection of the environment.
The present invention adopts modified sulphur compound and modified graphite friction material strengthening agent and frictional property regulator in friction material formulation, the heat resistance, fade resistance, reduction noise and the impact resistance that improve friction material increase the service life, and improve the corresponding Integrated using performance of friction material.Utilize modified sulphur compound and modified graphite to have that compression performance is stable, the fabulous advantage such as pliability, lubricity designs for friction material formulation, ensure in high temperature friction performance, make product less at high temperature wear, do not damage friction pair, reduce brake noise, overcome heat cracking, reduce environmental pollution etc.
According to summary of the invention, design two group of formula (A formula and B formula) and tested, experimental program and experimental result are as follows:
Embodiment is as follows:
Formula A:
Phenolic resin 8% mineral fibre 17% iron oxide 6%
Graphite 10% barium sulphate 16% calcium carbonate 12%
Aramid fibre 2% potassium titanate 16% tyre talc 3%
Red copper fiber 10%.
Formula B:
Phenolic resin 8% mineral fibre 17% iron oxide 6%
Graphite 10% barium sulphate 16% calcium carbonate 12%
Aramid fibre pulp 2% potassium titanate 16% tyre talc 3%
Modified sulphur compound 5% modified graphite 5%.
According to above formula Design, according to following production technology processed sample, processing Honda Accord vehicle anter D465, uses woods section testing machine to carry out engine bench test according to North America ASE J2522 standard:
The encapsulation of batch mixing → moulding hot pressing → heat treatment → plain grinding → spray paint → dry → installation accessories → marking
Test result:
From analysis of experimental data, do not adopt modified sulphur compound and modified graphite (formula A) friction material product hardness large, poor toughness, in the time carrying out decline program, fading rate is up to more than 15%, and high speed performance is poor, friction factor is 0.20, has noise producing in experimentation; And adopt friction material (formula B) fading rate of modified sulphur compound and modified graphite to have clear improvement, lower than 15%, high-speed friction coefficient higher than 0.30 when the experiment noise free.
Use this formula produce brake block, when high temperature, there is not heat fade phenomenon, stable friction factor, product abrasion is little, impact strength improves 30% left and right, in using process, brake comfortable, noise free produce, reach working life more than 70,000 kilometers.
Claims (4)
1. without copper organic ceramic brake block, it is characterized in that: comprise binder, reinforcing material, frictional property regulator and filler, be specially by the raw material of following weight percentage and make:
Phenolic resin 6-13% mineral fibre 10-22% iron oxide 5-7%
Graphite 6-14% barium sulphate 12-20% calcium carbonate 10-14%
Aramid fibre pulp 1-3% potassium titanate 12-20% tyre talc 1-5%
Modified sulphur compound 2-8% modified graphite 2-8%.
2. according to claim 1 without copper organic ceramic brake block, it is characterized in that: wherein optimum weight percentage is:
Phenolic resin 8% mineral fibre 17% iron oxide 6%
Graphite 10% barium sulphate 16% calcium carbonate 12%
Aramid fibre pulp 2% potassium titanate 16% tyre talc 3%
Modified sulphur compound 5% modified graphite 5%.
3. according to claim 1 and 2 without copper organic ceramic brake block, it is characterized in that: described phenolic resin is phenol-formaldehyde resin modified.
4. according to claim 1 without copper organic ceramic brake block, it is characterized in that: described frictional property regulator comprises lapping paste and oiling agent, described lapping paste comprises aluminium sesquioxide, iron oxide and magnesian one or more mixing; Described oiling agent comprises one or more mixing of graphite, modified graphite, molybdenum disulfide, mica and modified sulphur compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368159.9A CN104179860A (en) | 2014-07-30 | 2014-07-30 | Copper-free organic ceramic brake pad |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368159.9A CN104179860A (en) | 2014-07-30 | 2014-07-30 | Copper-free organic ceramic brake pad |
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| CN104179860A true CN104179860A (en) | 2014-12-03 |
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| CN201410368159.9A Pending CN104179860A (en) | 2014-07-30 | 2014-07-30 | Copper-free organic ceramic brake pad |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105733176A (en) * | 2016-02-29 | 2016-07-06 | 天长市天航摩擦材料有限公司 | Method for preparing environmental-friendly brake pad with reclaimed materials |
| CN105754284A (en) * | 2016-02-29 | 2016-07-13 | 天长市天航摩擦材料有限公司 | Preparation method of high-performance low-copper brake pad |
| CN107339351A (en) * | 2017-08-14 | 2017-11-10 | 杭州西湖摩擦材料有限公司 | A kind of wear brake pad |
| CN107676413A (en) * | 2017-11-15 | 2018-02-09 | 邵丽娃 | A kind of brake block friction material composition and preparation method thereof and brake block |
| CN109931350A (en) * | 2017-12-18 | 2019-06-25 | 中国科学院宁波材料技术与工程研究所 | A kind of no copper graphene ceramic brake composite material, preparation method and application |
| CN110678529A (en) * | 2017-05-24 | 2020-01-10 | 株式会社爱德克斯 | Friction element |
| WO2020023023A1 (en) * | 2018-07-24 | 2020-01-30 | Cwd, Llc | Material for brake pads, brake pads incorporating the same, and methods of making such material and brake pads |
| CN111847986A (en) * | 2020-06-08 | 2020-10-30 | 东营宝丰汽车配件有限公司 | Copper-free nano ceramic brake pad |
| CN112961456A (en) * | 2021-04-13 | 2021-06-15 | 北京纵横机电科技有限公司 | Friction regulator composition and preparation method and application thereof |
| CN113294464A (en) * | 2021-05-26 | 2021-08-24 | 广西荣昇新材料有限公司 | Copper powder composite material for train brake pad and preparation method thereof |
| CN114001111A (en) * | 2021-11-25 | 2022-02-01 | 东营宝丰汽车配件有限公司 | Copper-free ceramic brake pad |
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| JP2001027271A (en) * | 1999-07-15 | 2001-01-30 | Toyota Motor Corp | Friction material |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105754284A (en) * | 2016-02-29 | 2016-07-13 | 天长市天航摩擦材料有限公司 | Preparation method of high-performance low-copper brake pad |
| CN105733176A (en) * | 2016-02-29 | 2016-07-06 | 天长市天航摩擦材料有限公司 | Method for preparing environmental-friendly brake pad with reclaimed materials |
| CN110678529A (en) * | 2017-05-24 | 2020-01-10 | 株式会社爱德克斯 | Friction element |
| CN107339351B (en) * | 2017-08-14 | 2019-09-20 | 杭州西湖摩擦材料有限公司 | A kind of wear brake pad |
| CN107339351A (en) * | 2017-08-14 | 2017-11-10 | 杭州西湖摩擦材料有限公司 | A kind of wear brake pad |
| CN107676413A (en) * | 2017-11-15 | 2018-02-09 | 邵丽娃 | A kind of brake block friction material composition and preparation method thereof and brake block |
| CN109931350A (en) * | 2017-12-18 | 2019-06-25 | 中国科学院宁波材料技术与工程研究所 | A kind of no copper graphene ceramic brake composite material, preparation method and application |
| CN109931350B (en) * | 2017-12-18 | 2020-10-16 | 中国科学院宁波材料技术与工程研究所 | Copper-free graphene ceramic brake pad composite material, brake pad, preparation method and application thereof |
| WO2020023023A1 (en) * | 2018-07-24 | 2020-01-30 | Cwd, Llc | Material for brake pads, brake pads incorporating the same, and methods of making such material and brake pads |
| CN111847986A (en) * | 2020-06-08 | 2020-10-30 | 东营宝丰汽车配件有限公司 | Copper-free nano ceramic brake pad |
| CN112961456A (en) * | 2021-04-13 | 2021-06-15 | 北京纵横机电科技有限公司 | Friction regulator composition and preparation method and application thereof |
| CN113294464A (en) * | 2021-05-26 | 2021-08-24 | 广西荣昇新材料有限公司 | Copper powder composite material for train brake pad and preparation method thereof |
| CN114001111A (en) * | 2021-11-25 | 2022-02-01 | 东营宝丰汽车配件有限公司 | Copper-free ceramic brake pad |
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Application publication date: 20141203 |