CN104110455B - Brake pad - Google Patents
Brake pad Download PDFInfo
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- CN104110455B CN104110455B CN201410280424.8A CN201410280424A CN104110455B CN 104110455 B CN104110455 B CN 104110455B CN 201410280424 A CN201410280424 A CN 201410280424A CN 104110455 B CN104110455 B CN 104110455B
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- fiber
- rubber powder
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- brake block
- acrylonitrile
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Abstract
The invention discloses a brake pad. The brake pad is obtained through the steps of weighing raw materials, namely, modified phenolic resin, fiber type raw material, filling type material and nitrile rubber powder, wherein the nitrile rubber powder is composed of a nitrile rubber powder body, sulphur, accelerants DM and carbon black, the fiber type raw material is composed of one or more of mineral fiber, glass fiber, steel fiber and wood fiber, and the filling type material is composed of one or more of graphite, barite, frictional powder and bauxite; uniformly mixing the modified phenolic resin and the filling type material, adding the nitrile rubber powder and the fiber type raw material to be uniformly mixed into a mixture, sending the obtained mixture and a brake pad back plate coated with rubber into the pressing process, conducting cold pressing to form a finished blank, controlling the pressure intensity to be within the range of 21MPa to 26MPa, conducting hot pressing and forming, controlling the temperature to be within the range of 143 DEG C to 151 DEG C, and obtaining the brake pad. The brake pad is high in high temperature resistance, excellent in abrasion resistance and high in anti-impact strength, and the blank manufactured through cold pressing and preforming has high strength and can be conveniently transported.
Description
Technical field
The present invention relates to brake block technical field, more particularly, to a kind of brake block.
Background technology
Brake block is also brake(-holder) block or brake rubber block, and in the brake system of automobile, brake block is the breaking piece of most critical,
The quality of braking effect is played a decisive role, brake block is typically made up of steel plate, bonding thermal insulation layer and brake pad.Brake pad by
Friction material and binding agent composition, during brake, brake pad is compressed in and produces friction with it on brake disc or brake rim, thus reaching
To the purpose making vehicle deceleration brake it is seen then that brake pad determines performance under high-speed and high-temperature braking condition for the brake block, friction material
Material is the critically important ingredient during manufacture process and use of brake block.
The operation principle of brake is mainly and carrys out self-friction, using rubbing of brake block and brake disc (drum) and tire and ground
Wipe, the kinetic energy that vehicle is advanced is converted into the heat energy after rubbing, and car is stopped.A set of well efficient brake system must
Stable, enough, controllable brake weight must be provided that, and there is good hydraulic pressure transfer and heat-sinking capability, to guarantee to drive
The power that people is applied from brake pedal sufficiently effective can pass to master cylinder and each wheel cylinder, it is to avoid hydraulic failure that hyperpyrexia is led to and stopping
Car fails.
The friction material of current brake block typically will be through cold pressing preforming and hot-forming twice technique, friction material
Often asbestos fibre is used as reinforcing material, asbestos fibre has good tensile strength and good thermal insulation and anticorrosion
Property, nonflammable, its stronger tension stress even can be with senior steel to coupling, but to be one kind very thin for asbestos fibre
Little, naked eyes are almost invisible, when these tiny fibers are inhaled in human body, will adhere to and be deposited on pulmonary, cause pulmonary
Disease, causes pulmonary carcinoma, and the capacity of heat transmission of asbestos fibre is particularly poor when serious, if brake block reaches certain temperature, will
Lead to brake failure, bury accident potential, therefore start the environmental protection storm of a disabling asbestos brake lining in the world,
Because the substitution material of asbestos does not have good dispersant adsorption, fall apart, no after the blank depanning easily causing preforming of colding pressing
Can transhipment, therefore how to prepare that a kind of heat-resisting quantity is good, anti-wear performance is excellent, impact strength is big, and after preforming of colding pressing
Blank has preferable intensity in order to transport, and preparation method is simple, and lower-cost brake block becomes the current skill needing and solving
Art problem.
Content of the invention
In order to solve technical problem present in background technology, the present invention proposes a kind of brake block and preparation method thereof,
Described brake block heat-resisting quantity good, anti-wear performance is excellent, and impact strength is big, and the blank of preforming of colding pressing preparation has relatively
Good intensity can be easy to transport, and preparation method is simple, and cost is relatively low.
A kind of brake block proposed by the present invention, weighs raw material: 13-18% phenol-formaldehyde resin modified, 24- by weight percentage
33% fiber-like raw material, 45-60% fill class material, 3-7% acrylonitrile-butadiene rubber powder, acrylonitrile-butadiene rubber powder by nitrile rubber powder, sulfur,
Dm accelerator and white carbon black composition, fiber-like raw material is by one kind or many of mineral fibres, glass fibre, steel fibre and wood fibre
Plant composition, filling class material is formed by one or more of graphite, barite, Frication powder and bauxite；By phenol-formaldehyde resin modified
With filling class material mixing uniformly, it is subsequently adding acrylonitrile-butadiene rubber powder and fiber-like raw material mix homogeneously, obtains batch mixing, will obtain
Batch mixing and gluing brake block backboard send into suppression process, carry out being cold-pressed into base first, controls pressure be 21-26mpa, so
After carry out hot-forming, control temperature be 143-151 DEG C, obtain brake block.
In a particular embodiment, the content of phenol-formaldehyde resin modified can for 13%, 14%, 14.7%, 15%, 15.2%,
16%th, 16.4%, 17%, 18%, the content of fiber-like raw material can for 24%, 25%, 25.9%, 27%, 28.4%,
29%th, 30%, 30.3%, 31%, 31.5%, 32%, 33%, the content of filling class material can for 45%, 47%,
47.3%th, 48%, 48.4%, 49.8%, 50%, 51.6%, 52%, 53%, 53.3%, 54.6%, 55%, 56%, 57%,
58%th, 60%, the content of acrylonitrile-butadiene rubber powder can be 3%, 4%, 4.4%, 4.7%, 5%, 5.8%, 6%, 7%.
Preferably, its raw materials by weight includes: 14-17% phenol-formaldehyde resin modified, 25-32% fiber-like former material
Material, 47-56% fills class material, 4-5% acrylonitrile-butadiene rubber powder.
Preferably, after phenol-formaldehyde resin modified is uniform with filling class material mixing, acrylonitrile-butadiene rubber powder and fiber-like former material are added
Expect and mix homogeneously in plough type batch mixer.
Preferably, described suppression process is carried out in hydraulic press.
Preferably, be cold-pressed into during base and control pressure to be 23-25mpa, hot-forming during control temperature to be 144-
148℃.
In the present invention, described nitrile rubber powder is made up of nitrile rubber powder, sulfur, dm accelerator and white carbon black, and it has certain
Viscosity, can stick to powderous primary material about, when colding pressing preforming, can be adhered to other materials by the viscosity of itself
Together, the blank after making to cold pressing has preferable intensity and is easy to transport, and uses cooperatively phenol-formaldehyde resin modified in nitrile rubber powder
Binding agent as brake block simultaneously rationally controls both proportionings, can be effectively improved the heat fading performance of brake block, restorability,
Polishing machine and mechanical performance, and it is remarkably improved the resistance to elevated temperatures of brake block；The addition of fiber-like raw material can reduce material
The density of material, reduces its wear extent, also can reduce the coefficient of friction of material simultaneously, fiber-like raw material and acrylonitrile-butadiene rubber powder and change
Property phenolic resin be used in mixed way the parent being remarkably improved friction material in the stability of each temperature section and unclassified stores and adhesive
And performance, using the filling class material being formed by one or more of graphite, barite, Frication powder and bauxite in said components
Material can form transfer membrane, can improve moment of friction and stablize coefficient of friction, and can reduce the damage to mating plate, improves brake block
Anti-wear performance；Described brake block passes through in preparation process first will be uniform to resin and filling class material mixing, then adds
Fiber-like raw material and acrylonitrile-butadiene rubber powder mix homogeneously, can make fiber-like raw material while fully dispersed, also will not be because of
Long being battered down of mixing time and reduce product strength, and the process of preparation method is simple, and preparation cost is relatively low.
Specific embodiment
A kind of brake block in the present invention, weighs raw material: 14.7% phenol-formaldehyde resin modified, 32% fiber-like by weight percentage
Raw material, 47.3% filling class material, 6% acrylonitrile-butadiene rubber powder, acrylonitrile-butadiene rubber powder is by nitrile rubber powder, sulfur, dm accelerator and charcoal
Black composition, fiber-like raw material is formed by one or more of mineral fibres, glass fibre, steel fibre and wood fibre, filling
Class material is formed by one or more of graphite, barite, Frication powder and bauxite；By phenol-formaldehyde resin modified and filling class material
Mix homogeneously, is subsequently adding acrylonitrile-butadiene rubber powder and fiber-like raw material mix homogeneously, obtains batch mixing, by the batch mixing obtaining and painting
Suppression process sent into by the brake block backboard of glue, carries out being cold-pressed into base first, and control pressure is 21mpa, then carries out hot-forming,
Control temperature to be 151 DEG C, obtain brake block.
Embodiment 1
A kind of brake block, weighs raw material: 13-18% phenol-formaldehyde resin modified, 24-33% fiber-like former material by weight percentage
Material, 45-60% fills class material, 3-7% acrylonitrile-butadiene rubber powder, and acrylonitrile-butadiene rubber powder is by nitrile rubber powder, sulfur, dm accelerator and white carbon black
Composition, fiber-like raw material is made up of mineral fibres, glass fibre, steel fibre and wood fibre, and filling class material is by graphite, weight
Spar, Frication powder and bauxite composition；By phenol-formaldehyde resin modified with filling class material mixing uniformly, it is subsequently adding acrylonitrile-butadiene rubber powder
And fiber-like raw material mix homogeneously, obtain batch mixing, the brake block backboard of the batch mixing obtaining and gluing sent into suppression process,
Carry out being cold-pressed into base first, control pressure is 21-26mpa, then carries out hot-forming, control temperature to be 143-151 DEG C, obtain
Brake block.
Embodiment 2
A kind of brake block, weighs raw material: 15.2% phenol-formaldehyde resin modified, 30.3% fiber-like former material by weight percentage
Material, 49.8% filling class material, 4.7% acrylonitrile-butadiene rubber powder, acrylonitrile-butadiene rubber powder is by nitrile rubber powder, sulfur, dm accelerator and white carbon black
Composition, fiber-like raw material is made up of with glass fibre mineral fibres, and filling class material is by graphite, barite, Frication powder and aluminum
Alumina forms；By phenol-formaldehyde resin modified with filling class material mixing uniformly, it is subsequently adding acrylonitrile-butadiene rubber powder and fiber-like raw material
Mix homogeneously, obtains batch mixing, the brake block backboard of the batch mixing obtaining and gluing is sent into suppression process, is cold-pressed into first
Base, control pressure is 23mpa, then carries out hot-forming, controls temperature to be 148 DEG C, obtains brake block.
Embodiment 3
A kind of brake block, weighs raw material: 16.4% phenol-formaldehyde resin modified, 25.9% fiber-like former material by weight percentage
Material, 53.3% filling class material, 4.4% acrylonitrile-butadiene rubber powder, acrylonitrile-butadiene rubber powder is by nitrile rubber powder, sulfur, dm accelerator and white carbon black
Composition, fiber-like raw material is made up of mineral fibres, steel fibre and wood fibre, and filling class material is by Frication powder and bauxite group
Become；By phenol-formaldehyde resin modified with filling class material mixing uniformly, it is subsequently adding acrylonitrile-butadiene rubber powder and the mixing of fiber-like raw material is equal
Even, obtain batch mixing, the brake block backboard of the batch mixing obtaining and gluing is sent into suppression process, carries out being cold-pressed into base first, control
Pressure processed is 25mpa, then carries out hot-forming, controls temperature to be 144 DEG C, obtains brake block.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept equivalent or change in addition, all should be included within the scope of the present invention.
Claims (5)
1. a kind of brake block is it is characterised in that weigh raw material by weight percentage: 13-18% phenol-formaldehyde resin modified, 24-33%
Fiber-like raw material, 45-60% fills class material, 3-7% acrylonitrile-butadiene rubber powder, and acrylonitrile-butadiene rubber powder is promoted by nitrile rubber powder, sulfur, dm
Enter agent and white carbon black composition, fiber-like raw material is formed by one or more of steel fibre and wood fibre, and filling class material is by stone
One or more composition of ink, barite, Frication powder and bauxite；By phenol-formaldehyde resin modified with filling class material mixing uniformly,
It is subsequently adding acrylonitrile-butadiene rubber powder and fiber-like raw material mix homogeneously, obtains batch mixing, by the brake of the batch mixing obtaining and gluing
Suppression process sent into by piece backboard, carries out being cold-pressed into base first, and control pressure is 21-26mpa, then carries out hot-forming, controls
Temperature is 143-151 DEG C, obtains brake block.
2. brake block according to claim 1 is it is characterised in that its raw materials by weight includes: 14-17% is modified
Phenolic resin, 25-32% fiber-like raw material, 47-56% fills class material, 4-5% acrylonitrile-butadiene rubber powder.
3. brake block according to claim 1 is it is characterised in that phenol-formaldehyde resin modified is uniform with filling class material mixing
Afterwards, acrylonitrile-butadiene rubber powder and fiber-like raw material mix homogeneously in plough type batch mixer are added.
4. according to the brake block described in claim 3 it is characterised in that described suppression process is carried out in hydraulic press.
5. according to the brake block described in claim 3 it is characterised in that controlling pressure to be 23-25mpa during being cold-pressed into base, heat
Temperature is controlled to be 144-148 DEG C during molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410280424.8A CN104110455B (en) | 2014-06-20 | 2014-06-20 | Brake pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410280424.8A CN104110455B (en) | 2014-06-20 | 2014-06-20 | Brake pad |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104110455A CN104110455A (en) | 2014-10-22 |
| CN104110455B true CN104110455B (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410280424.8A Active CN104110455B (en) | 2014-06-20 | 2014-06-20 | Brake pad |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559359A (en) * | 2017-08-14 | 2018-01-09 | 杭州西湖摩擦材料有限公司 | A kind of anti-cracking brake block |
| CN113502030A (en) * | 2021-03-24 | 2021-10-15 | 浙江杭摩欧亿汽车零部件有限公司 | Friction material for automobile disc-drum parking brake shoe and preparation method thereof |
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| CN1431408A (en) * | 2001-11-22 | 2003-07-23 | 中国科学院山西煤炭化学研究所 | Disk type brake lining of cars and its preparing method |
| WO2003087255A1 (en) * | 2002-04-15 | 2003-10-23 | Nippon Valqua Industries, Ltd. | Non-asbestos friction material |
| JP2008208314A (en) * | 2007-02-28 | 2008-09-11 | Nissin Kogyo Co Ltd | Friction material |
| CN101735496A (en) * | 2009-12-24 | 2010-06-16 | 信义集团公司 | Method for manufacturing silencing materials of car brakes by utilizing nitrile rubber |
| CN103122959A (en) * | 2013-03-08 | 2013-05-29 | 山东金山汽配有限公司 | High-temperature wear-resisting ceramic composite fiber brake block |
| CN103436221A (en) * | 2013-07-26 | 2013-12-11 | 安徽昕宏通用设备制造有限公司 | Brake pad friction material and preparation technology thereof |
| CN103573886A (en) * | 2013-10-16 | 2014-02-12 | 青岛华瑞胶业设备有限公司 | High-strength wear-resistant brake pad |
| CN103603903A (en) * | 2013-11-19 | 2014-02-26 | 青岛广联达精密机械有限公司 | High-strength corrosion-resistant car brake pad |
| CN103644228A (en) * | 2013-11-15 | 2014-03-19 | 宁国飞鹰汽车零部件股份有限公司 | Wear-resistant brake pad and preparation method thereof |
| CN103644229A (en) * | 2013-11-15 | 2014-03-19 | 宁国飞鹰汽车零部件股份有限公司 | Highly abrasion resistant brake pad and preparation method thereof |
-
2014
- 2014-06-20 CN CN201410280424.8A patent/CN104110455B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431408A (en) * | 2001-11-22 | 2003-07-23 | 中国科学院山西煤炭化学研究所 | Disk type brake lining of cars and its preparing method |
| WO2003087255A1 (en) * | 2002-04-15 | 2003-10-23 | Nippon Valqua Industries, Ltd. | Non-asbestos friction material |
| JP2008208314A (en) * | 2007-02-28 | 2008-09-11 | Nissin Kogyo Co Ltd | Friction material |
| CN101735496A (en) * | 2009-12-24 | 2010-06-16 | 信义集团公司 | Method for manufacturing silencing materials of car brakes by utilizing nitrile rubber |
| CN103122959A (en) * | 2013-03-08 | 2013-05-29 | 山东金山汽配有限公司 | High-temperature wear-resisting ceramic composite fiber brake block |
| CN103436221A (en) * | 2013-07-26 | 2013-12-11 | 安徽昕宏通用设备制造有限公司 | Brake pad friction material and preparation technology thereof |
| CN103573886A (en) * | 2013-10-16 | 2014-02-12 | 青岛华瑞胶业设备有限公司 | High-strength wear-resistant brake pad |
| CN103644228A (en) * | 2013-11-15 | 2014-03-19 | 宁国飞鹰汽车零部件股份有限公司 | Wear-resistant brake pad and preparation method thereof |
| CN103644229A (en) * | 2013-11-15 | 2014-03-19 | 宁国飞鹰汽车零部件股份有限公司 | Highly abrasion resistant brake pad and preparation method thereof |
| CN103603903A (en) * | 2013-11-19 | 2014-02-26 | 青岛广联达精密机械有限公司 | High-strength corrosion-resistant car brake pad |
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| CN104110455A (en) | 2014-10-22 |
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