CN114001111A - Copper-free ceramic brake pad - Google Patents

Copper-free ceramic brake pad Download PDF

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Publication number
CN114001111A
CN114001111A CN202111409418.4A CN202111409418A CN114001111A CN 114001111 A CN114001111 A CN 114001111A CN 202111409418 A CN202111409418 A CN 202111409418A CN 114001111 A CN114001111 A CN 114001111A
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CN
China
Prior art keywords
friction
fiber
brake pad
powder
copper
Prior art date
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Pending
Application number
CN202111409418.4A
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Chinese (zh)
Inventor
田式国
金鑫
庞伟
张振华
王伟平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongying Baofeng Auto Parts Co ltd
Original Assignee
Dongying Baofeng Auto Parts Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongying Baofeng Auto Parts Co ltd filed Critical Dongying Baofeng Auto Parts Co ltd
Priority to CN202111409418.4A priority Critical patent/CN114001111A/en
Publication of CN114001111A publication Critical patent/CN114001111A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02Composition of linings ; Methods of manufacturing
    • F16D69/023Composite materials containing carbon and carbon fibres or fibres made of carbonizable material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02Composition of linings ; Methods of manufacturing
    • F16D69/025Compositions based on an organic binder
    • F16D69/026Compositions based on an organic binder containing fibres
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02Composition of linings ; Methods of manufacturing
    • F16D69/027Compositions based on metals or inorganic oxides
    • F16D69/028Compositions based on metals or inorganic oxides containing fibres
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00Materials; Production methods therefor
    • F16D2200/0034Materials; Production methods therefor non-metallic
    • F16D2200/0039Ceramics
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00Materials; Production methods therefor
    • F16D2200/0034Materials; Production methods therefor non-metallic
    • F16D2200/0052Carbon
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00Materials; Production methods therefor
    • F16D2200/0034Materials; Production methods therefor non-metallic
    • F16D2200/0056Elastomers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00Materials; Production methods therefor
    • F16D2200/006Materials; Production methods therefor containing fibres or particles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00Materials; Production methods therefor
    • F16D2200/006Materials; Production methods therefor containing fibres or particles
    • F16D2200/0065Inorganic, e.g. non-asbestos mineral fibres
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00Materials; Production methods therefor
    • F16D2200/0082Production methods therefor
    • F16D2200/0086Moulding materials together by application of heat and pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00Materials; Production methods therefor
    • F16D2200/0082Production methods therefor
    • F16D2200/0091Impregnating a mat of fibres with a binder

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Braking Arrangements (AREA)

Abstract

The invention relates to preparation of a friction material in the field of automobile industry, in particular to a copper-free ceramic brake pad, which is prepared from the following raw materials: the invention relates to a bonding agent, a reinforcing material, a friction performance regulator and a filler, and has the advantages that: the formula of the friction material is designed by utilizing the advantages of good heat resistance, thermal stability, water resistance and the like of the ceramic fiber, the internal structure of the material is changed, and the comprehensive practical performance of the brake piece is improved; the brake pad has no heat fading phenomenon at high temperature, stable friction coefficient, small product abrasion, comfortable braking in the using process, no noise and long service life of more than 7 kilometres; the brake piece of the car is qualified through the detection of the American LINK3900 rack TP2044 standard, the safety performance of the brake piece of the car is stable, and the brake piece of the car has the advantage of low cost.

Description

Copper-free ceramic brake pad
Technical Field
The invention relates to preparation of a friction material in the field of automobile industry, in particular to a copper-free ceramic brake pad.
Background
In recent years, the rapid development of the automobile industry injects a strong force into the economic construction of China, so that the development of a large number of industries in China is driven, particularly after 2005, the explosion of the automobile market exceeds the imagination of people, and the increase of the total output value is in a linear trend. With the rapid development of the automobile industry, the market of automobile brake friction materials in China is also active, the demand of automobile brake pads is increased year by year, and the high-precision and high-quality production of the automobile brake pads is more needed to support the safety of automobile driving.
The automobile brake is a key part for ensuring the driving safety, is designed for reducing the driving speed of the automobile or stopping the automobile, and converts the kinetic energy of the automobile into heat energy through friction so as to achieve the aim of braking. The performance is directly related to the driving safety of the automobile. When the brake system has a fault, the fault must be eliminated in time; when the braking performance of the automobile does not reach the index, the automobile should be inspected and maintained early so as to keep good technical condition.
For a disc brake, a brake pad is fixed with a brake disc, is formed by bonding various reinforcing fibers such as ceramic fiber, aramid fiber, potassium magnesium titanate and the like with other components, and is a friction material product with various performances required by friction braking. The quality of the brake performance of the automobile depends on the quality of the brake pad, so that the quality of the brake pad is closely related to the life and property of people. The development of high speed of automobiles also puts forward more strict requirements on the production quality of brake pads, and at present, China still needs to import some friction materials of high-end automobile brake systems to meet the requirements, which is an invisible obstacle to the development of the automobile industry in China, and also hinders the development of economy in China, so that the automobile brake pad is a subject which is urgently needed to be solved before people.
The ceramic composite material has very important effect on the performance of the whole material. With the development of transportation machinery towards high speed and heavy load, higher requirements are put forward on high-performance friction materials, such as good fade resistance, shear strength, stable friction coefficient, smaller abrasion, lower noise and the like. However, the unmodified phenolic resin in the existing friction material has the defects of large brittleness, poor toughness and limited heat resistance, and can not meet the use requirements of modern automobile braking.
Disclosure of Invention
In order to solve the problems, the application provides a copper-free ceramic brake pad, which adopts ceramic fibers, aramid fibers and potassium magnesium titanate in a friction material formula, changes the internal structure of the friction material, and improves the heat resistance and the decay resistance of the friction material and the corresponding comprehensive use performance of the friction material.
A copper-free ceramic brake pad is characterized in that a friction material of the copper-free ceramic brake pad is composed of the following raw materials: 6-18 parts of adhesive, 21-33 parts of reinforcing material, 6-30 parts of friction performance regulator and 10-30 parts of filler.
The adhesive is composed of modified phenolic resin, and the adhesive is used for uniformly bonding various materials and fibers together, and then is subjected to a series of processing such as heating, pressurizing and the like to form a fine structure.
The reinforced material is prepared by mixing ceramic fiber, aramid fiber and mineral fiber, the reinforced material has the function of enhancing various performances of the friction material, such as toughness, pressure resistance and the like of the friction material, and the mineral fiber has the functions of heat insulation and sound absorption, so that the noise influence of the brake pad is reduced.
The filler is composed of barium sulfate, potassium magnesium titanate and vermiculite powder, and the filler has the main function of optimizing various performances of the friction material, so that the basic performances of the material, such as corrosion resistance, high temperature resistance and the like, can be improved.
The friction performance regulator comprises 1-15 parts of grinding agent, the grinding agent is composed of aluminum oxide, iron oxide and magnesium oxide, the friction performance regulator further comprises 5-15 parts of graphite, molybdenum disulfide and mica, and the magnesium oxide and graphite material are added, so that the friction coefficient of the brake pad is improved, and the material also has high-temperature resistance and can enable the friction coefficient to tend to be stable.
Silica in the friction material: resin: aramid fiber: ceramic fiber: zircon: iron oxide black: graphite: friction powder: barium sulfate: potassium titanate: the weight part ratio of the tire powder is 1-10: 5-15: 3-10: 25-33: 1-2: 1-3: 1-10: 2-10: 20-30: 15-25: 2 to 4.
Preferably, the silica: resin: aramid short fiber: ceramic fiber: zircon: iron oxide black: graphite: friction powder: barium sulfate: potassium titanate: the optimal weight portion ratio of the tire powder is 8: 8: 3: 24: 1: 1: 8: 4: 25: 14: 4.
further, the silica: resin: aramid short fiber: ceramic fiber: zircon: iron oxide black: graphite: friction powder: barium sulfate: potassium titanate: the weight portion ratio of the tire powder can be 4: 10: 5: 20: 1: 1: 5: 3: 20: 24: 2.
further, the silica: resin: aramid short fiber: ceramic fiber: zircon: iron oxide black: graphite: friction powder: barium sulfate: potassium titanate: the weight portion ratio of the tire powder can be 6: 6: 5: 19: 1: 1: 5: 4: 30: 20: 3.
further, the silica: resin: aramid short fiber: ceramic fiber: zircon: iron oxide black: graphite: friction powder: barium sulfate: potassium titanate: the weight portion ratio of the tire powder can be 8: 8: 3: 26: 1: 1: 9: 4: 25: 14: 3.
the manufacturing method of the copper-free ceramic brake pad comprises the following steps: the friction modifier is graphite, the friction modifier is friction powder, the fiber is prepared by mixing aramid short fiber, ceramic fiber and mineral, the friction modifier is prepared by mixing zircon and iron black, the filler is prepared by mixing barium sulfate, potassium magnesium titanate and tire powder, the resin is butyronitrile modified resin, and in the aspect of impact resistance and compression resistance, the brake pad of the butyronitrile modified resin contains proper soft rubber particles to form high polymer alloy, when the resin base and the colloid are combined into a whole, the rubber particles have good elasticity, so when the material is impacted by pressure, the rubber particles can repair and absorb generated cracks, and further expansion of the cracks is prevented, thereby reducing the damage of pressure to the brake block, which is the improvement of the shock resistance of the material.
Compared with the prior art, the invention has the following beneficial technical effects:
1. according to the invention, the friction material formula is designed by utilizing the advantages of good heat resistance, thermal stability, water resistance and the like of the ceramic fiber, the internal structure of the material is changed, and the comprehensive practical performance of the brake piece is improved;
2. the brake pad produced by adopting the formula provided by the invention has the advantages that the brake pad does not have heat fading phenomenon at high temperature, the friction coefficient is stable, the product abrasion is small, the brake is comfortable in use, no noise is generated, and the service life reaches more than 7 kilometres;
3. the invention combines all material proportion, and reasonably matches new material with the prior art to further improve the performance of the brake pad;
4. the brake pad prepared by the technical method is qualified through the detection of the American LINK3900 rack TP2044 standard, the car brake pad has stable safety performance and has the advantage of low cost, and in addition, the prior processing technology is not required to be improved, so the production and modification cost is greatly saved.
Drawings
FIG. 1 is a schematic diagram showing the proportion of ingredients of a copper-free ceramic brake pad according to the present invention.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings and examples:
it should be noted that the structures, proportions, sizes, and other dimensions shown in the drawings and described in the specification are only for the purpose of understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined by the following claims, and all modifications of the structures, changes in the proportions and adjustments of the sizes and other dimensions which are within the scope of the disclosure should be understood and encompassed by the present disclosure without affecting the efficacy and attainment of the same.
In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Embodiment 1, this embodiment provides a copper-free ceramic brake pad, and in a process of compounding friction materials, the weight parts of various raw materials are as follows: 4 parts of silicon dioxide, 10 parts of resin, 5 parts of aramid short fiber, 20 parts of ceramic fiber, 1 part of zircon, 1 part of iron oxide black, 5 parts of graphite, 3 parts of friction powder, 20 parts of barium sulfate, 24 parts of potassium titanate and 2 parts of tire powder; the raw materials are mixed, cooled, vulcanized, ground, inspected and finally packaged on the existing processing production line to obtain the finished product of the car brake pad.
Example 2, this example also provides a copper-free ceramic brake pad, wherein during compounding of the friction material, the weight parts of the raw materials are 6 parts of silica, 6 parts of resin, 5 parts of aramid short fiber, 19 parts of ceramic fiber, 1 part of zircon, 1 part of iron black, 5 parts of graphite, 4 parts of friction powder, 30 parts of barium sulfate, 20 parts of potassium titanate and 3 parts of tire powder; the raw materials are mixed, cooled, vulcanized, ground, inspected and finally packaged on the existing processing production line to obtain the finished product of the car brake pad.
Example 3, this example also provides a copper-free ceramic brake pad, wherein during compounding of the friction material, the optimal weight ratio of the raw materials is 8 parts of silica, 8 parts of resin, 3 parts of aramid short fiber, 26 parts of ceramic fiber, 1 part of zircon, 1 part of iron oxide black, 9 parts of graphite, 4 parts of friction powder, 25 parts of barium sulfate, 14 parts of potassium titanate, and 3 parts of tire powder; the raw materials are mixed, cooled, vulcanized, ground, inspected and finally packaged on the existing processing production line to obtain the finished product of the car brake pad.
Experiments prove that the performance of the car brake pad prepared in the range of the raw material proportion disclosed by the invention meets the requirements, and the cost is also reduced.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.

Claims (7)

1. A copper-free ceramic brake pad is characterized in that,
the friction material of the copper-free ceramic brake pad consists of the following raw materials: 6-18 parts of adhesive, 21-33 parts of reinforcing material, 6-30 parts of friction performance regulator and 10-30 parts of filler,
the adhesive is composed of modified phenolic resin, the reinforcing material is prepared by mixing ceramic fiber, aramid fiber and mineral fiber, the filler is composed of barium sulfate, potassium magnesium titanate and vermiculite powder, the friction performance regulator comprises 1-15 parts of grinding agent, the grinding agent is composed of aluminum oxide, iron oxide and magnesium oxide, and the friction performance regulator further comprises 5-15 parts of graphite, molybdenum disulfide and mica.
2. The copper-free ceramic brake pad of claim 1, wherein the friction material has a silica: resin: aramid fiber: ceramic fiber: zircon: iron oxide black: graphite: friction powder: barium sulfate: potassium titanate: the weight part ratio of the tire powder is 1-10: 5-15: 3-10: 25-33: 1-2: 1-3: 1-10: 2-10: 20-30: 15-25: 2 to 4.
3. The copper-free ceramic brake pad of claim 2, wherein the friction material has a silica: resin: aramid short fiber: ceramic fiber: zircon: iron oxide black: graphite: friction powder: barium sulfate: potassium titanate: the optimal weight portion ratio of the tire powder is 8: 8: 3: 24: 1: 1: 8: 4: 25: 14: 4.
4. the copper-free ceramic brake pad of claim 3, wherein the friction material has a silica: resin: aramid short fiber: ceramic fiber: zircon: iron oxide black: graphite: friction powder: barium sulfate: potassium titanate: the weight portion ratio of the tire powder is 4: 10: 5: 20: 1: 1: 5: 3: 20: 24: 2.
5. the copper-free ceramic brake pad of claim 3, wherein the friction material has a silica: resin: aramid short fiber: ceramic fiber: zircon: iron oxide black: graphite: friction powder: barium sulfate: potassium titanate: the weight portion ratio of the tire powder is 6: 6: 5: 19: 1: 1: 5: 4: 30: 20: 3.
6. the copper-free ceramic brake pad of claim 3, wherein the friction material has a silica: resin: aramid short fiber: ceramic fiber: zircon: iron oxide black: graphite: friction powder: barium sulfate: potassium titanate: the weight portion ratio of the tire powder is 8: 8: 3: 26: 1: 1: 9: 4: 25: 14: 3.
7. a method of manufacturing a copper-free ceramic brake pad according to any one of claims 1 to 6, comprising: the silicon dioxide, resin, ceramic fiber, friction increasing agent, friction reducing agent, friction regulator and filler are prepared according to the process steps of proportioning, mixing, cold molding, vulcanization, grinding and inspection,
the friction reducing agent is graphite, the friction regulator is friction powder, the resin is butyronitrile modified resin, the fiber is formed by mixing aramid fiber short fiber, ceramic fiber and mineral, the friction increasing agent is formed by mixing zircon and iron black, and the filling agent is formed by mixing barium sulfate, potassium magnesium titanate and tire powder.
CN202111409418.4A 2021-11-25 2021-11-25 Copper-free ceramic brake pad Pending CN114001111A (en)

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Application Number Priority Date Filing Date Title
CN202111409418.4A CN114001111A (en) 2021-11-25 2021-11-25 Copper-free ceramic brake pad

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Application Number Priority Date Filing Date Title
CN202111409418.4A CN114001111A (en) 2021-11-25 2021-11-25 Copper-free ceramic brake pad

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101402780A (en) * 2008-11-11 2009-04-08 信义集团公司 Method for producing friction material with ceramic fibre
CN101775227A (en) * 2009-12-03 2010-07-14 信义集团公司 Method for preparing sedan brake pad by using silicon dioxide
CN101865227A (en) * 2009-08-25 2010-10-20 青岛华瑞丰机械有限公司 Method for preparing brake pad by barium sulfate crystal whisker
CN102562891A (en) * 2011-12-31 2012-07-11 东营宝丰汽车配件有限公司 Silicate composite brake pad
CN104179860A (en) * 2014-07-30 2014-12-03 东营宝丰汽车配件有限公司 Copper-free organic ceramic brake pad
CN109780101A (en) * 2018-10-22 2019-05-21 泰明顿摩擦材料技术(上海)有限公司 A kind of Non-copper friction material and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101402780A (en) * 2008-11-11 2009-04-08 信义集团公司 Method for producing friction material with ceramic fibre
CN101865227A (en) * 2009-08-25 2010-10-20 青岛华瑞丰机械有限公司 Method for preparing brake pad by barium sulfate crystal whisker
CN101775227A (en) * 2009-12-03 2010-07-14 信义集团公司 Method for preparing sedan brake pad by using silicon dioxide
CN102562891A (en) * 2011-12-31 2012-07-11 东营宝丰汽车配件有限公司 Silicate composite brake pad
CN104179860A (en) * 2014-07-30 2014-12-03 东营宝丰汽车配件有限公司 Copper-free organic ceramic brake pad
CN109780101A (en) * 2018-10-22 2019-05-21 泰明顿摩擦材料技术(上海)有限公司 A kind of Non-copper friction material and preparation method thereof

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