CN101402780A - Method for producing friction material with ceramic fibre - Google Patents
Method for producing friction material with ceramic fibre Download PDFInfo
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- CN101402780A CN101402780A CNA2008101598958A CN200810159895A CN101402780A CN 101402780 A CN101402780 A CN 101402780A CN A2008101598958 A CNA2008101598958 A CN A2008101598958A CN 200810159895 A CN200810159895 A CN 200810159895A CN 101402780 A CN101402780 A CN 101402780A
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Abstract
The invention relates to a method for preparing a friction material by using ceramic fiber in the friction material field. The technical proposal is characterized in that resin, fiber, an abrasive, a lubricant and filler are provided with such processing steps as batch mixing, molding and hot briquetting, heat treatment, grinding and inspection to obtain the friction material. The resin used is nano-copper modified phenolic resin; the fiber is a combination of ceramic fiber and aramid fiber or mineral fiber, wherein, the dosage of the ceramic fiber is 2 portions to 5 portions by weight; the abrasive comprises aluminum oxide, iron oxide or magnesium oxide; and the lubricant comprises graphite, molybdenum disulfide or mica, the filler comprises barium sulfate, calcium carbonate, potassium titanate or vermiculite powder. The method aims at utilizing the advantages of ceramic fiber, such as high melting point, high molar quantity, stable compression property and excellent chemical resistance stability and good flexibility in the design of friction material formula. The friction material does not incur heat fading at high temperature and has stable friction factor, little abrasion and impact strength improved by approximately 30 percent. The friction material leads to a comfortable braking when being used without producing noises and the service life is more than 70 thousand kilometers.
Description
Technical field
The present invention relates to the method that ceramic fiber in the friction material field is used to prepare friction materials.
Background technology
Generally include following component in the friction materials preparation process of brake facing: resin, fiber, abrasive, lubricant and stopping composition.Its complete processing mainly comprises batching-batch mixing-moulding-grinding-check-operations such as packing.Brake facing as the vehicle key component is developed to matrix material by single-material at present, the quality of its quality directly influences the reliability of machine and operator's life security, along with science and technology development, people are to the speed of transport facility and power machine, load and security requirement are more and more higher, bullet train, heavy-duty freight car, car, racing car, heavy duties such as motorcycle, run at high speed, brake frequent civilian launch vehicle, and the abominable panzer of environment for use, tank, vertiplanes etc. are all fast to responding, rubbing factor is high and stablize, the heat resistanceheat resistant decline is functional, density is little, the high-quality friction material that the long service life environmental compatibility is strong has proposed urgent requirement, ceramic-based friction material arises at the historic moment, but its technology is ripe not enough in China, in use exist impact strength poor, the decline of frictional coefficient high temperature is big, product is prone to shortcomings such as crackle, need the exploitation novel material, novel process is optimized the formula for a product structure and is overcome its shortcoming.
Summary of the invention
The objective of the invention is at existing friction materials existing problem in blending process, a kind of employing ceramic fiber friction materials toughener and frictional property regulator are proposed, the thermotolerance, fade resistance and the impact resistance that improve friction materials increase the service life, and the ceramic fiber that improves the corresponding comprehensive use properties of friction materials is used to prepare the method for friction materials.
Technical scheme is: resin, fiber, abrasive, lubricant and stopping composition are made by batch mixing, moulding hot pressing, thermal treatment, grinding and inspection process step.Described resin adopts nanometer copper modified phenolic resins, and the weight part of its consumption is 5-12; Described fiber is the combination of ceramic fiber and aramid fiber or mineral fibre, and the weight part of its consumption is 20-40, and wherein the weight part of the consumption of ceramic fiber is 2-5; Described abrasive comprises aluminium sesquioxide, ferric oxide, magnesian one or more combination, and the weight part of its consumption is 1-15; Described lubricant comprises graphite, molybdenumdisulphide, micaceous one or more combination, and the weight part of its consumption is 5-20; Described stopping composition comprises the one or more combination in barium sulfate, lime carbonate, potassium titanate or the vermiculite power.
Also comprise tyre talc in the stopping composition, the weight part of its consumption is 2-4.
The objective of the invention is the fusing point height that utilizes ceramic fiber to have, advantages such as chemicals-resistant stability, the snappiness that Gao Moliang, compression performance are stable, fabulous is good are used for friction material formulation design, guarantee in the high temperature friction performance, make product littler at high temperature wear, do not damage friction pair, reduce brake noise, overcome heat cracking, reduce environmental pollution etc.Use the brake facing of material of the present invention, the heat fading phenomenon do not take place during high temperature, stable friction factor, product abrasion is little, shock strength improves about 30%, in the use braking comfortable, noiselessness produces, and reaches work-ing life more than 70,000 kilometers.
Embodiment
Prescription used in the present invention is as follows:
According to summary of the invention, designed two assembly sides (A prescription and B prescription) and tested, experimental program and experimental result are as follows:
(1) embodiment
According to above formulating of recipe,, test according to following production technique processed sample:
Batch mixing-moulding hot pressing-thermal treatment-plain grinding-spray paint-dry-installation accessories-Yin marks encapsulation
(2) test-results
From analysis of experimental data, do not adopt ceramic fiber (prescription A) friction materials product hardness big, poor toughness, when carrying out the decline program, fading rate is up to more than 35%, and high speed performance is relatively poor, and frictional coefficient is 0.22, has noise to produce in experimentation; And adopt friction materials (prescription B) fading rate of ceramic fiber to have clear improvement, and being lower than 10%, the high-speed friction coefficient is higher than 0.30, noiselessness when experiment.
Claims (2)
1, a kind of ceramic fiber is used to prepare the method for friction materials, be that resin, fiber, abrasive, lubricant and stopping composition are made by batch mixing, moulding hot pressing, thermal treatment, grinding and inspection process step, it is characterized in that: described resin adopts nanometer copper modified phenolic resins, and the weight part of its consumption is 5-12; Described fiber is the combination of ceramic fiber and aramid fiber or mineral fibre, and the weight part of its consumption is 20-40, and wherein the weight part of the consumption of ceramic fiber is 2-5; Described abrasive comprises aluminium sesquioxide, ferric oxide or magnesian one or more combination, and the weight part of its consumption is 1-15; Described lubricant comprises graphite, molybdenumdisulphide or micaceous one or more combination, and the weight part of its consumption is 5-20; Described stopping composition comprises the one or more combination in barium sulfate, potassium titanate, vermiculite power or the lime carbonate.
2, ceramic fiber according to claim 1 is used to prepare the method for friction materials, it is characterized in that: comprise also in the stopping composition that tyre talc, the weight part of its consumption are 2-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101598958A CN101402780A (en) | 2008-11-11 | 2008-11-11 | Method for producing friction material with ceramic fibre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101598958A CN101402780A (en) | 2008-11-11 | 2008-11-11 | Method for producing friction material with ceramic fibre |
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| Publication Number | Publication Date |
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| CN101402780A true CN101402780A (en) | 2009-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101598958A Pending CN101402780A (en) | 2008-11-11 | 2008-11-11 | Method for producing friction material with ceramic fibre |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851102A (en) * | 2010-05-20 | 2010-10-06 | 湖南博云汽车制动材料有限公司 | Ceramic high-temperature processing technology for ceramic matrix brake pad |
| CN102062169A (en) * | 2010-12-20 | 2011-05-18 | 黄石赛福摩擦材料有限公司 | Ceramic automobile braking friction plate and production method thereof |
| CN103555273A (en) * | 2013-10-29 | 2014-02-05 | 贵州新安航空机械有限责任公司 | Preparation method of friction material of yaw brake pad |
| CN107586536A (en) * | 2017-09-22 | 2018-01-16 | 北京天宜上佳新材料股份有限公司 | A kind of friction material and by its preparation formed without metal brake block and preparation method thereof |
| CN109722224A (en) * | 2017-10-31 | 2019-05-07 | 丹阳市金长汽车部件有限公司 | A kind of brake block of low noise |
| 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 |
| CN115259851A (en) * | 2022-07-28 | 2022-11-01 | 镇江创时纳米材料有限公司 | Special potassium titanate for ceramic type brake pad friction material, disc type brake pad and preparation method of special potassium titanate |
-
2008
- 2008-11-11 CN CNA2008101598958A patent/CN101402780A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851102A (en) * | 2010-05-20 | 2010-10-06 | 湖南博云汽车制动材料有限公司 | Ceramic high-temperature processing technology for ceramic matrix brake pad |
| CN102062169A (en) * | 2010-12-20 | 2011-05-18 | 黄石赛福摩擦材料有限公司 | Ceramic automobile braking friction plate and production method thereof |
| CN102062169B (en) * | 2010-12-20 | 2012-10-03 | 黄石赛福摩擦材料有限公司 | Production method of ceramic automobile braking friction plate |
| CN103555273A (en) * | 2013-10-29 | 2014-02-05 | 贵州新安航空机械有限责任公司 | Preparation method of friction material of yaw brake pad |
| CN103555273B (en) * | 2013-10-29 | 2015-03-18 | 贵州新安航空机械有限责任公司 | Preparation method of friction material of yaw brake pad |
| CN107586536A (en) * | 2017-09-22 | 2018-01-16 | 北京天宜上佳新材料股份有限公司 | A kind of friction material and by its preparation formed without metal brake block and preparation method thereof |
| CN107586536B (en) * | 2017-09-22 | 2020-05-26 | 北京天宜上佳高新材料股份有限公司 | Friction material, metal-free brake pad prepared from friction material and preparation method of metal-free brake pad |
| CN109722224A (en) * | 2017-10-31 | 2019-05-07 | 丹阳市金长汽车部件有限公司 | A kind of brake block of low noise |
| 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 |
| CN115259851A (en) * | 2022-07-28 | 2022-11-01 | 镇江创时纳米材料有限公司 | Special potassium titanate for ceramic type brake pad friction material, disc type brake pad and preparation method of special potassium titanate |
| CN115259851B (en) * | 2022-07-28 | 2023-06-20 | 镇江创时纳米材料有限公司 | Special potassium titanate for ceramic brake pad friction material, disc brake pad and preparation method thereof |
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Open date: 20090408 |