CN113583313A - Low-noise soft wear-resistant material, brake pad and preparation method - Google Patents
Low-noise soft wear-resistant material, brake pad and preparation method Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title abstract description 9
- 229920001971 elastomer Polymers 0.000 claims abstract description 49
- 239000005060 rubber Substances 0.000 claims abstract description 49
- 239000000835 fiber Substances 0.000 claims abstract description 25
- 239000002245 particle Substances 0.000 claims abstract description 25
- 229910021383 artificial graphite Inorganic materials 0.000 claims abstract description 20
- 239000010455 vermiculite Substances 0.000 claims abstract description 20
- 229910052902 vermiculite Inorganic materials 0.000 claims abstract description 20
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 20
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 17
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 17
- 241001330002 Bambuseae Species 0.000 claims abstract description 17
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 17
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 17
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- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 17
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 17
- 229910052845 zircon Inorganic materials 0.000 claims abstract description 17
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 238000005299 abrasion Methods 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 12
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- 238000007596 consolidation process Methods 0.000 claims abstract description 5
- 238000004321 preservation Methods 0.000 claims abstract description 5
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- 229920000459 Nitrile rubber Polymers 0.000 claims description 7
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- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 4
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
- C08L23/283—Halogenated homo- or copolymers of iso-olefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
-
- 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
- F16D69/025—Compositions based on an organic binder
- F16D69/026—Compositions based on an organic binder containing fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
-
- 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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0082—Production methods therefor
- F16D2200/0086—Moulding materials together by application of heat and pressure
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- Polymers & Plastics (AREA)
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a low-noise soft wear-resistant material which comprises the following components in parts by weight: the anti-abrasion rubber comprises anti-abrasion rubber particles, artificial graphite, high-temperature calcined alumina, yellow vermiculite, talcum powder, barite powder, zircon powder and regenerated bamboo fibers, wherein the anti-abrasion rubber particles are composed of rubber, reinforcing fibers and thermosetting resin; a low-noise soft wear-resistant brake pad is prepared from the low-noise soft wear-resistant material. A method for preparing a low-noise soft wear-resistant brake pad comprises four steps of raw material preparation, raw material mixing, hot press molding and heat preservation consolidation. The new low-noise soft wear-resistant material improves the overall performance of the friction material of the brake pad, and has the characteristics of strong heat resistance, high friction coefficient, good braking effect, strong stability coefficient and the like.
Description
Technical Field
The invention belongs to the technical field of brake materials, and particularly relates to a low-noise soft wear-resistant material, a brake pad and a preparation method thereof.
Background
Along with the improvement of science and technology and the improvement of people's standard of living, the vehicle is more and more, and the vehicle life-span is constantly increased, and driving safety risk is constantly increased, and the brake block is the most crucial safety part among the car braking system, plays decisive role to the good or bad of brake effect, and it can directly influence whole braking system's reliability, and this has just provided higher requirement to car braking system.
The friction block on the brake pad is composed of friction materials and adhesives, and is extruded on a brake disc or a brake drum to generate friction with the brake disc or the brake drum during braking, so that the aim of decelerating the vehicle is fulfilled. The existing friction materials are mostly produced by plasticating rubber and plastic respectively, then mixing the rubber and the plastic together, then crushing the mixed materials, adding iron powder, an accelerant, an anti-aging agent, crushed asbestos and glass fiber, uniformly mixing the materials to prepare sheets or particles, then putting the sheets or particles into a mould for pressing, and curing the sheets or particles to obtain the finished product. The friction between the brake block and the brake disc converts the kinetic energy of the automobile into heat energy, and the temperature of the brake block and the brake disc can rise by 300-400 ℃. In the braking process, under the extreme heavy load of high temperature, machinery and chemistry, heat accumulation in a short period of time enables the friction material to be easy to generate serious thermal decomposition, the friction performance of the friction material is seriously declined, the friction coefficient is unstable, and the service life is shortened.
With the enhancement of environmental awareness, in foreign markets, asbestos-free and metal-less environment-friendly friction materials, i.e., asbestos-free organic friction materials, have begun to be popularized to the market; countries in the united states and europe have already made legislation to limit the content of harmful heavy metal components and copper in friction materials. However, the semimetal brake pad is seriously rusted under the action of moisture, the noise is high during braking, the vibration is large, and certain damage is caused to a brake disc. Most semimetal or few metal brake pads easily generate dust in the using process, the dust is adsorbed on the wheel hub, and the wheel hub is easily corroded due to the fact that the dust is difficult to clean and is influenced by the wheel hub for a long time.
Most of brake pads in the current market are hard formulations, and the brake pads of the formulations have the defects of poor flexibility, poor adhesion and poor toughness, easy generation of much ash, no environmental protection and high noise. The technical problems to be solved by the technical personnel in the field are how to design a low-noise, soft and wear-resistant friction material, a brake pad made of the friction material and how to design a manufacturing process of the friction material.
Disclosure of Invention
Objects of the invention
In view of the defects of the prior art, the invention aims to provide a low-noise soft wear-resistant material, a brake pad and a preparation method thereof.
(II) technical scheme
In order to solve the problems, the invention provides a low-noise soft wear-resistant material which comprises the following components in parts by weight: 90-100 parts of antifriction rubber particles, 10-16 parts of artificial graphite, 2-11 parts of high-temperature calcined alumina, 4-13 parts of vermiculite, 1-4 parts of talcum powder, 6-14 parts of barite powder, 3-9 parts of zircon powder and 7-16 parts of regenerated bamboo fibers;
the antifriction rubber particles comprise the following components in parts by weight: 80 parts of rubber, 14 parts of reinforcing fiber and 16 parts of thermosetting resin;
the rubber is one or more of styrene butadiene rubber, nitrile butadiene rubber, chlorinated polyisobutylene rubber and rubber silicone rubber;
the reinforced fiber is one or more of carbon fiber, aramid fiber and glass fiber;
the thermosetting resin is one or two of phenolic resin and special heat-resistant resin.
As a further scheme of the invention: comprises the following components by weight: 94-98 parts of antifriction rubber particles, 12-15 parts of artificial graphite, 5-9 parts of high-temperature calcined alumina, 6-10 parts of vermiculite, 1-3 parts of talcum powder, 7-9 parts of barite powder, 4-7 parts of zircon powder and 8-13 parts of regenerated bamboo fibers.
Furthermore, the fineness of the artificial graphite is 50-70 meshes, and the fineness of the yellow vermiculite is 28-35 meshes.
Further, the rubber is the styrene butadiene rubber, the nitrile butadiene rubber and the chlorinated polyisobutylene rubber, and the weight ratio of the three rubbers is 1:1: 1.
Further, the reinforcing fibers are the carbon fibers and the aramid fibers, and the weight ratio of the two fibers is 1: 2.
The invention also provides a low-noise soft wear-resistant brake pad which is prepared from the low-noise soft wear-resistant material.
The invention also provides a method for preparing the low-noise soft abrasion-resistant brake pad, which comprises the following steps:
step one, preparing raw materials: preparing antifriction rubber particles, artificial graphite, high-temperature calcined alumina, yellow vermiculite, talcum powder, barite powder, zircon powder and regenerated bamboo fiber according to the weight ratio;
step two, mixing raw materials: mixing the antifriction rubber particles, high-temperature calcined alumina, yellow vermiculite, talcum powder, barite powder and zircon powder in a mixer for 7 minutes, adding artificial graphite and regenerated bamboo fiber, and mixing for 2 minutes;
step three, hot-press forming: pressing for 4 times in a pressing die with the temperature of 160 ℃ and the pressure of 35MPa, wherein each time is 80 seconds, the pressure is released for 6 seconds between each two times of pressing, and the total pressing time is 320 seconds;
step four, heat preservation and consolidation: the hot-pressed component is kept at 150 ℃ for 2 hours in a drying oven, kept at 180 ℃ for 5 hours again and then cooled to the ambient temperature.
(III) advantageous effects
The technical scheme of the invention has the following beneficial technical effects:
1. the low-noise soft wear-resistant material provided by the invention is prepared by combining the materials of antifriction rubber particles, artificial graphite, high-temperature calcined alumina, yellow vermiculite, talcum powder, barite powder, zircon powder and regenerated bamboo fiber according to a reasonable proportion, has good friction performance, has hardness suitable for the requirements of vehicles during braking, and improves the comfort during braking. Overcomes the defects of poor adhesion and toughness, easy ash falling, environmental pollution and high noise.
2. The low-noise soft wear-resistant brake pad has high thermal stability, and the safety performance of a brake system is improved.
3. The preparation method of the low-noise soft wear-resistant brake pad is simple and easy to implement, the efficiency of manufacturing the low-noise soft wear-resistant brake pad is improved, and the quality of the low-noise soft wear-resistant brake pad is improved.
Drawings
FIG. 1 is a flow chart of the preparation of the present invention.
Reference numerals:
1. preparing raw materials in the first step, mixing the raw materials in the second step, hot-press forming in the third step, and preserving heat and solidifying in the fourth step.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The invention discloses a low-noise soft wear-resistant material, a brake pad and a preparation method thereof, which are respectively explained in detail below.
Example 1:
the invention provides a low-noise soft wear-resistant material, which comprises the following components in percentage by weight: 90-100 parts of antifriction rubber particles, 10-16 parts of artificial graphite, 2-11 parts of high-temperature calcined alumina, 4-13 parts of vermiculite, 1-4 parts of talcum powder, 6-14 parts of barite powder, 3-9 parts of zircon powder and 7-16 parts of regenerated bamboo fibers;
the antifriction rubber particles comprise the following components in parts by weight: 80 parts of rubber, 14 parts of reinforcing fiber and 16 parts of thermosetting resin;
the rubber is one or more of styrene butadiene rubber, nitrile butadiene rubber, chlorinated polyisobutylene rubber and rubber silicone rubber;
the reinforced fiber is one or more of carbon fiber, aramid fiber and glass fiber;
the thermosetting resin is one or two of phenolic resin and special heat-resistant resin.
As a further scheme of the invention: comprises the following components by weight: 94-98 parts of antifriction rubber particles, 12-15 parts of artificial graphite, 5-9 parts of high-temperature calcined alumina, 6-10 parts of vermiculite, 1-3 parts of talcum powder, 7-9 parts of barite powder, 4-7 parts of zircon powder and 8-13 parts of regenerated bamboo fibers.
Preferably, the fineness of the artificial graphite is 50-70 meshes, and the fineness of the yellow vermiculite is 28-35 meshes.
Preferably, the rubber is the styrene-butadiene rubber, the nitrile-butadiene rubber and the chlorinated polyisobutylene rubber, and the weight ratio of the three rubbers is 1:1: 1.
Preferably, the reinforcing fiber is the carbon fiber and the aramid fiber, and the weight ratio of the two fibers is 1: 2.
Example 2:
the second aspect of the invention provides a low-noise soft abrasion-resistant brake pad. The low-noise soft wear-resistant brake pad is prepared from the low-noise soft wear-resistant material.
Example 3:
FIG. 1 is a flow chart of the preparation of the present invention.
The third aspect of the present invention provides a method for preparing the low-noise soft abrasion-resistant brake pad, comprising the following steps:
step one, preparing raw materials: preparing antifriction rubber particles, artificial graphite, high-temperature calcined alumina, yellow vermiculite, talcum powder, barite powder, zircon powder and regenerated bamboo fiber according to the weight ratio;
step two, mixing raw materials: mixing the antifriction rubber particles, high-temperature calcined alumina, yellow vermiculite, talcum powder, barite powder and zircon powder in a mixer for 7 minutes, adding artificial graphite and regenerated bamboo fiber, and mixing for 2 minutes;
step three, hot-press forming: pressing for 4 times in a pressing die with the temperature of 160 ℃ and the pressure of 35MPa, wherein each time is 80 seconds, the pressure is released for 6 seconds between each two times of pressing, and the total pressing time is 320 seconds;
step four, heat preservation and consolidation: the hot-pressed component is kept at 150 ℃ for 2 hours in a drying oven, kept at 180 ℃ for 5 hours again and then cooled to the ambient temperature.
Example 4:
the low-noise soft wear-resistant material comprises the following components in parts by weight: 95 parts of antifriction rubber particles, 12 parts of artificial graphite, 6 parts of high-temperature calcined alumina, 5 parts of yellow vermiculite, 2 parts of talcum powder, 7 parts of barite powder, 4 parts of zircon powder and 9 parts of regenerated bamboo fiber;
the antifriction rubber particles comprise the following components in parts by weight: 80 parts of rubber, 14 parts of reinforcing fiber and 16 parts of thermosetting resin;
the rubber is nitrile rubber;
the reinforced fiber is aramid fiber;
the thermosetting resin is phenolic resin.
The method for preparing the low-noise soft abrasion-resistant brake pad comprises the following steps:
step one, preparing raw materials: preparing antifriction rubber particles, artificial graphite, high-temperature calcined alumina, yellow vermiculite, talcum powder, barite powder, zircon powder and regenerated bamboo fiber according to the weight ratio;
step two, mixing raw materials: mixing the antifriction rubber particles, high-temperature calcined alumina, yellow vermiculite, talcum powder, barite powder and zircon powder in a mixer for 7 minutes, adding artificial graphite and regenerated bamboo fiber, and mixing for 2 minutes;
step three, hot-press forming: pressing for 4 times in a pressing die with the temperature of 160 ℃ and the pressure of 35MPa, wherein each time is 80 seconds, the pressure is released for 6 seconds between each two times of pressing, and the total pressing time is 320 seconds;
step four, heat preservation and consolidation: the hot-pressed component is kept at 150 ℃ for 2 hours in a drying oven, kept at 180 ℃ for 5 hours again and then cooled to the ambient temperature.
According to the GB/T5763-2008 standard, the test result of the prepared soft wear-resistant brake pad is as follows:
| test item/experiment temperature | 100℃ | 200℃ | 300℃ |
| Coefficient of friction at elevated temperature | 0.30 | 0.38 | 0.30 |
| Coefficient of friction at reduced temperature | 0.34 | 0.32 | 0.29 |
| Weight loss (g) | 0.05 | 0.07 | 0.09 |
| Volumetric wear rate 10-7cm3/N.m | 0.11 | 0.09 | 0.10 |
The prepared soft wear-resistant brake has stable performance, is safe and reliable, has physical conditions required by a brake system, and meets the test requirements.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. A low-noise soft wear-resistant material is characterized by comprising the following components in parts by weight: 90-100 parts of antifriction rubber particles, 10-16 parts of artificial graphite, 2-11 parts of high-temperature calcined alumina, 4-13 parts of vermiculite, 1-4 parts of talcum powder, 6-14 parts of barite powder, 3-9 parts of zircon powder and 7-16 parts of regenerated bamboo fibers;
the antifriction rubber particles comprise the following components in parts by weight: 80 parts of rubber, 14 parts of reinforcing fiber and 16 parts of thermosetting resin;
the rubber is one or more of styrene butadiene rubber, nitrile butadiene rubber, chlorinated polyisobutylene rubber and rubber silicone rubber;
the reinforced fiber is one or more of carbon fiber, aramid fiber and glass fiber;
the thermosetting resin is one or two of phenolic resin and special heat-resistant resin.
2. The low noise soft abrasion resistant material of claim 1, comprising the following components by weight: 94-98 parts of antifriction rubber particles, 12-15 parts of artificial graphite, 5-9 parts of high-temperature calcined alumina, 6-10 parts of vermiculite, 1-3 parts of talcum powder, 7-9 parts of barite powder, 4-7 parts of zircon powder and 8-13 parts of regenerated bamboo fibers.
3. The low noise soft abrasion resistant material of claim 2, wherein: the fineness of the artificial graphite is 50-70 meshes, and the fineness of the yellow vermiculite is 28-35 meshes.
4. The low noise soft abrasion resistant material of claim 3, wherein: the rubber is the styrene butadiene rubber, the nitrile butadiene rubber and the chlorinated polyisobutylene rubber, and the weight ratio of the three rubbers is 1:1: 1.
5. The low noise soft abrasion resistant material of claim 4, wherein: the reinforced fiber is the carbon fiber and the aramid fiber, and the weight ratio of the two fibers is 1: 2.
6. The utility model provides a soft wear-resisting brake block of low noise which characterized in that: the low-noise soft wear-resistant material is prepared from the low-noise soft wear-resistant material as defined in any one of claims 1 to 5.
7. A method of making the low noise, soft abrasion resistant brake pad of claim 6, comprising the steps of:
step one, preparing raw materials: preparing antifriction rubber particles, artificial graphite, high-temperature calcined alumina, yellow vermiculite, talcum powder, barite powder, zircon powder and regenerated bamboo fiber according to the weight ratio;
step two, mixing raw materials: mixing the antifriction rubber particles, high-temperature calcined alumina, yellow vermiculite, talcum powder, barite powder and zircon powder in a mixer for 7 minutes, adding artificial graphite and regenerated bamboo fiber, and mixing for 2 minutes;
step three, hot-press forming: pressing for 4 times in a pressing die with the temperature of 160 ℃ and the pressure of 35MPa, wherein each time is 80 seconds, the pressure is released for 6 seconds between each two times of pressing, and the total pressing time is 320 seconds;
step four, heat preservation and consolidation: the hot-pressed component is kept at 150 ℃ for 2 hours in a drying oven, kept at 180 ℃ for 5 hours again and then cooled to the ambient temperature.
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| CN105387107A (en) * | 2015-12-16 | 2016-03-09 | 青岛立博汽车零部件精密铸造有限公司 | Novel environment-friendly noise-free brake pad and machining method thereof |
| CN109163040A (en) * | 2018-11-01 | 2019-01-08 | 石家庄硕茂摩擦材料科技有限公司 | A kind of wear-resistant universal brake-pad friction block formula of stable friction factor and preparation method thereof |
| CN109505901A (en) * | 2018-11-20 | 2019-03-22 | 宁国飞鹰汽车零部件股份有限公司 | A kind of friction material and friction material component preparation method containing aramid fiber |
| CN109611479A (en) * | 2018-11-20 | 2019-04-12 | 宁国飞鹰汽车零部件股份有限公司 | A kind of brake pad material and brake piece making method containing ceramic fibre |
| CN110760108A (en) * | 2019-11-22 | 2020-02-07 | 石家庄硕若科技有限公司 | Preparation method of rubber powder with functions of reducing friction and noise |
| CN112980392A (en) * | 2021-03-03 | 2021-06-18 | 张豪 | Wear-resistant low-noise soft brake pad and preparation method thereof |
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| CN105387107A (en) * | 2015-12-16 | 2016-03-09 | 青岛立博汽车零部件精密铸造有限公司 | Novel environment-friendly noise-free brake pad and machining method thereof |
| CN109163040A (en) * | 2018-11-01 | 2019-01-08 | 石家庄硕茂摩擦材料科技有限公司 | A kind of wear-resistant universal brake-pad friction block formula of stable friction factor and preparation method thereof |
| CN109505901A (en) * | 2018-11-20 | 2019-03-22 | 宁国飞鹰汽车零部件股份有限公司 | A kind of friction material and friction material component preparation method containing aramid fiber |
| CN109611479A (en) * | 2018-11-20 | 2019-04-12 | 宁国飞鹰汽车零部件股份有限公司 | A kind of brake pad material and brake piece making method containing ceramic fibre |
| CN110760108A (en) * | 2019-11-22 | 2020-02-07 | 石家庄硕若科技有限公司 | Preparation method of rubber powder with functions of reducing friction and noise |
| CN112980392A (en) * | 2021-03-03 | 2021-06-18 | 张豪 | Wear-resistant low-noise soft brake pad and preparation method thereof |
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Application publication date: 20211102 |