CN115418073B - Fan yaw brake pad friction material and preparation method and application thereof - Google Patents
Fan yaw brake pad friction material and preparation method and application thereof Download PDFInfo
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- CN115418073B CN115418073B CN202210994205.0A CN202210994205A CN115418073B CN 115418073 B CN115418073 B CN 115418073B CN 202210994205 A CN202210994205 A CN 202210994205A CN 115418073 B CN115418073 B CN 115418073B
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- 239000002783 friction material Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000011159 matrix material Substances 0.000 claims abstract description 26
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 14
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 14
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical class [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims description 27
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229920006231 aramid fiber Polymers 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000010445 mica Substances 0.000 claims description 7
- 229910052618 mica group Inorganic materials 0.000 claims description 7
- 239000002557 mineral fiber Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000011812 mixed powder Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000004760 aramid Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 13
- 238000007906 compression Methods 0.000 abstract description 13
- 239000002245 particle Substances 0.000 abstract description 5
- 230000002829 reductive effect Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 229920001568 phenolic resin Polymers 0.000 abstract description 3
- 239000005011 phenolic resin Substances 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- 239000002657 fibrous material Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 230000035882 stress Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 244000226021 Anacardium occidentale Species 0.000 description 1
- 235000020226 cashew nut Nutrition 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
- C08L61/14—Modified phenol-aldehyde condensates
-
- 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
-
- 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
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
-
- 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
- F16D2200/0034—Materials; Production methods therefor non-metallic
- F16D2200/0039—Ceramics
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a friction material for a yaw brake pad of a fan, and a preparation method and application thereof, and relates to the technical field of yaw brake equipment of wind driven generators, wherein the friction material comprises a matrix component, reinforcing fibers, filling components and functional components; the matrix component comprises modified phenolic resin, and the reinforcing fiber comprises nano silicon carbide whiskers; the friction material of the yaw brake pad of the fan is obviously improved in compression strength and friction coefficient through the reinforcing effect of the nano silicon carbide whisker on the phenolic resin; and a large amount of fiber materials are used for replacing conventional particle materials to manufacture the fan yaw brake block, so that vibration of the particle materials during operation of the brake block is reduced, the possibility of noise and squeal is greatly reduced, and the noise problem during operation of the conventional fan yaw brake block is solved.
Description
Technical Field
The invention relates to the technical field of yaw brake equipment of wind driven generators, in particular to a friction material for a yaw brake plate of a fan, and a preparation method and application thereof.
Background
The statements herein merely provide background information related to the present application and may not necessarily constitute prior art.
Wind energy is becoming more and more important as clean energy, and with technological progress and development of environmental protection industry, wind power generation can completely compete with thermal power generation in commerce. The method provides great development space for the wind power generation industry, and is applicable to the economic benefit and the social benefit of the wind power industry and the sustainable development and energy conservation strategy of the current activities of various countries.
In the power generation process of the wind driven generator, the head of the wind driven generator needs to be kept in a windward state all the time, so that the maximum working efficiency of the wind driven generator is ensured; in order to lock the direction of the machine head, a fan brake pad is usually adopted to brake the machine head at present. The fan brake blocks are symmetrically arranged on the upper side and the lower side of the yaw brake disc, and when the fan works, the yaw brake blocks are pressed on the yaw brake disc, so that the fan head is fixed towards the yaw brake disc; when the machine head needs to be adjusted in the direction, the yaw brake plate reduces the pressure on the yaw brake disc so that the machine head rotates, the yaw brake plate always provides protective dynamic friction force for the machine head in the process of rotating the machine head, and after the machine head rotates to the preset direction, the yaw brake plate presses the yaw brake disc, and the machine head is locked in the direction again.
Because the weight of the fan head is large, a yaw brake block is required to provide a large amount of yaw braking force; the inventor finds that the friction coefficient and the compression strength of the friction material adopted by the yaw brake plate are low at present, the low friction coefficient leads to the need of larger pressing force to provide enough braking force, and the friction material with low compression strength has high loss speed and poor service life under the environment of high pressing force and needs to be replaced frequently; and the conventional friction material can generate friction noise and squeal when providing dynamic friction force for the rotating machine head, thereby interfering the work and life of residents and constructors.
Disclosure of Invention
Aiming at the yaw braking requirement of the wind driven generator, the invention provides a friction material for a yaw braking plate of a fan, and a preparation method and application thereof, which realize high compression strength and high friction coefficient of the friction material, remarkably improve the service life of the yaw braking plate, avoid frequent replacement, and have no noise and no squeal in the service process.
In order to achieve the above object, one or more embodiments of the present invention provide the following technical solutions:
a first object of the present application is to provide a fan yaw brake pad friction material that includes a matrix component, reinforcing fibers, a filler component, and a functional component.
Further, the mass fraction of the matrix component is 10% -30%, the mass fraction of the reinforcing fiber is 30% -60%, the mass fraction of the filling component is 20% -35%, and the mass fraction of the functional component is 5% -10%.
Further, the matrix component comprises a modified phenolic resin; the mass fraction of the modified phenolic resin is 10% -20%.
Further, the matrix component further comprises rubber powder; the mass fraction of the rubber powder is 0% -10%.
Further, the reinforcing fibers comprise nano silicon carbide whiskers; the mass fraction of the nano silicon carbide whisker is 5% -10%.
Further, the reinforcing fibers further comprise mineral fibers, ceramic fibers and aramid fibers; the mass fraction of the mineral fiber is 10% -20%; the mass fraction of the ceramic fiber is 10% -20%; the mass fraction of the aramid fiber is 5% -10%.
Further, the filling component comprises barium sulfate, friction powder and mica powder; the mass fraction of the barium sulfate is 5% -10%; the mass fraction of the friction powder is 10% -15%; the mass fraction of the mica powder is 5% -10%.
Further, the functional component comprises graphite powder; the mass fraction of the graphite powder is 5% -10%.
The second purpose of the application is to provide a preparation method of a fan yaw brake pad friction material, which comprises the following specific steps:
placing the reinforced fiber and the matrix component into a three-dimensional mixer, mixing for 30 minutes, and then placing the filling component and the functional component into the mixer for mixing for 30 minutes to prepare premixed powder;
and heating the mixed powder by a stainless steel die for one-step forming. Heating temperature: 150-180 ℃, 25-30MPa of pressure and 10-20 minutes of time;
and (3) placing the formed fan yaw brake block in an oven to be dried for 6-8 hours at the temperature of 150-160 ℃.
A third object of the present application is to provide a fan yaw brake pad, comprising a friction pad made of the fan yaw brake pad friction material; the brake disc is characterized by further comprising a back plate, wherein the friction plate is fixed on the back plate and used for extruding or loosening the brake disc.
Advantageous effects of the invention
1. The nano silicon carbide whisker is doped into the modified phenolic resin, so that the nano silicon carbide whisker is uniformly distributed in the compact phenolic resin as second phase particles; after high-temperature molding, the whisker prevents microcracks from further expanding in the modified phenolic resin matrix through bridging, crack deflection, whisker pulling-out effect and crystal breaking effect, and the mechanical property of the modified phenolic resin is obviously improved; the fan yaw brake block reinforced by the nano silicon carbide whisker has obvious improvement and improvement on the compression strength and the friction coefficient, so that the service life of the yaw brake block is effectively prolonged, and the replacement period of the yaw brake block is prolonged.
2. The yaw brake block of the conventional fan contains a large amount of granular materials, and the granular materials are extruded by external force to generate vibration so as to generate noise and squeak; the fan yaw brake pad is made of the fiber material instead of the conventional particle material, so that the possibility of vibration is reduced, the possibility of noise and squeal is greatly reduced, and the noise problem of the conventional fan yaw brake pad during operation is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application.
FIG. 1 is a schematic diagram of a wind turbine yaw brake pad according to embodiment 3 of the present disclosure;
wherein, 1, friction plate; 2. a back plate.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
In order to enable those skilled in the art to more clearly understand the technical solutions of the present application, the technical solutions of the present application will be described in detail below with reference to specific embodiments.
As described in the background art, the conventional yaw brake pad is made of a friction material with low friction coefficient and low compression strength, and friction noise and squeal can be generated when the conventional friction material provides a dynamic friction force for a rotating machine head.
Example 1
In an exemplary embodiment of the present application, a fan yaw brake pad friction material is provided.
The embodiment provides a friction material of a yaw brake pad of a fan, which comprises a matrix component, reinforcing fibers, a filling component and a functional component; the mass fraction of the matrix components is 10% -30%, the mass fraction of the reinforcing fibers is 30% -60%, the mass fraction of the filling components is 20% -35%, and the mass fraction of the functional components is 5% -10%.
Specifically, the matrix component comprises modified phenolic resin; the mass fraction of the modified phenolic resin is 10% -20%; preferably, the mass fraction of the modified phenolic resin is 20%;
the matrix component also comprises rubber powder; the mass fraction of the rubber powder is 0% -10%; preferably, the mass fraction of the rubber powder is 5%;
the reinforcing fiber comprises nano silicon carbide whiskers; the mass fraction of the nano silicon carbide whisker is 5% -10%; preferably, the mass fraction of the nano silicon carbide whisker is 7%;
the reinforcing fibers also comprise mineral fibers, ceramic fibers and aramid fibers; the mass fraction of the mineral fiber is 10% -20%; the mass fraction of the ceramic fiber is 10% -20%; the mass fraction of the aramid fiber is 5% -10%; preferably, the mass fraction of the mineral fibers is 15%; the mass fraction of the ceramic fiber is 10%; the mass fraction of the aramid fiber is 10%;
the filling component comprises barium sulfate, friction powder and mica powder; the mass fraction of the barium sulfate is 5% -10%; the mass fraction of the friction powder is 10% -15%; the mass fraction of the mica powder is 5% -10%; preferably, the mass fraction of the barium sulfate is 10%; the mass fraction of the friction powder is 8%; the mass fraction of the mica powder is 8%;
specifically, the friction powder is prepared by carrying out self polymerization reaction on cashew shell oil under the action of a catalyst to generate a polymer, further curing the polymer into an insoluble and infusible product under the action of a curing agent, and carrying out crushing processing.
The functional component comprises graphite powder; the mass fraction of the graphite powder is 5% -10%; preferably, the mass fraction of the graphite powder is 7%.
The nano silicon carbide whisker is used as second phase particles and uniformly distributed in a compact matrix material, can be well matched with the matrix, and after high-temperature molding, residual stress is generated between the whisker and the matrix material interface due to different thermal expansion coefficients of the whisker and the matrix material, after the composite material is subjected to external force to generate microcracks, the stress at the end part of the crack acts with the residual stress when the stress stretches to the whisker and the matrix interface, and the residual stress at the whisker and the matrix interface can partially or completely absorb the external stress. In this way, the whisker prevents further expansion of microcracks through bridging, crack deflection, whisker pulling effect and crystal breaking effect, and is used for modifying phenolic resin to play a role in reinforcing and toughening matrix materials, so that the mechanical property of the modified phenolic resin is remarkably improved; the fan yaw brake block reinforced by the nano silicon carbide whisker has obvious improvement and improvement on the compression strength and friction coefficient; the wind power yaw brake block has high toughness, so that the wind power yaw brake block can meet the noise-free condition;
and adopt a large amount of organic reinforcing and toughening fiber raw materials to replace a large amount of inorganic friction powder raw materials, the possibility that produces noise squeal is greatly reduced, namely this embodiment fan yaw brake block friction material compares conventional friction material has outstanding compressive strength, and can provide stable high coefficient of friction, possess higher thermal stability and lower wearing and tearing performance, effectively increase yaw brake block life-span, extension yaw brake block replacement cycle.
Example 2
The embodiment provides a method for preparing the fan yaw brake pad friction material according to embodiment 1, which comprises the following steps:
placing the reinforced fiber and the matrix component into a three-dimensional mixer, mixing for 30 minutes, and then placing the filling component and the functional component into the mixer for mixing for 30 minutes to prepare premixed powder;
and heating the mixed powder by a stainless steel die for one-step forming. Heating temperature: 150-180 deg.c, 25-30MPa and 10-20 min;
and (3) placing the formed fan yaw brake block in an oven to be dried for 6-8 hours at the temperature of 150-160 ℃.
Example 3
The embodiment provides a fan yaw brake block, which comprises a friction plate 1 made of the fan yaw brake block friction material in the embodiment 1; and the brake disc also comprises a back plate 2, wherein the friction plate is fixed on the back plate and used for extruding or loosening the brake disc.
The yaw brake block of the fan has the compression strength of 100MPa, the dynamic friction coefficient of 0.45-0.55 and the static friction coefficient of 0.4, and the maximum noise of the product is lower than 80dB after 200 hours of internal operation; the compression strength of the conventional yaw brake pad is only 80MPa, the dynamic friction coefficient is 0.3-0.4, the static friction coefficient is 0.3, and the noise decibel is higher than 80dB; namely, compared with the conventional brake pad, the yaw brake pad of the fan has the advantages that the compression strength, the friction coefficient and the working noise are obviously improved.
The yaw brake pad prepared by adopting the fan yaw brake pad friction material in the embodiment 1 has the compression strength of 100MPa, the dynamic friction coefficient of 0.45-0.55 and the static friction coefficient of 0.4, and the maximum noise of the product is lower than 80dB after 200 hours of internal operation; compared with the conventional yaw brake pad, the yaw brake pad has the advantages that the compression strength is 80MPa, the dynamic friction coefficient is 0.3-0.4, the static friction coefficient is 0.3, the noise decibel of the product is higher than 80dB, and compared with the conventional yaw brake pad, the yaw brake pad has obvious improvement in the compression strength, the friction coefficient and the noise.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (2)
1. A friction material of a yaw brake plate of a fan is characterized by comprising a matrix component, reinforcing fibers, a filling component and a functional component;
the mass fraction of the matrix components is 10% -30%, the mass fraction of the reinforcing fibers is 30% -60%, the mass fraction of the filling components is 20% -35%, and the mass fraction of the functional components is 5% -10%;
the reinforcing fiber comprises nano silicon carbide whiskers; the mass fraction of the nano silicon carbide whisker is 5% -10%;
the reinforcing fibers also comprise mineral fibers, ceramic fibers and aramid fibers; the mass fraction of the mineral fiber is 10% -20%; the mass fraction of the ceramic fiber is 10% -20%; the mass fraction of the aramid fiber is 5% -10%;
the fan yaw brake pad friction material is prepared through the following steps:
placing the reinforced fiber and the matrix component into a three-dimensional mixer, mixing for 30 minutes, and then placing the filling component and the functional component into the mixer for mixing for 30 minutes to prepare premixed powder;
heating the mixed powder by a stainless steel die for one-step forming, wherein the heating temperature is as follows: 150-180 ℃, 25-30MPa of pressure and 10-20 minutes of time;
placing the formed fan yaw brake block in an oven to dry for 6-8 hours at 150-160 ℃;
the matrix component comprises a modified phenolic resin; the mass fraction of the modified phenolic resin is 10% -20%;
the matrix component also comprises rubber powder; the mass fraction of the rubber powder is 0% -10%;
the filling component comprises barium sulfate, friction powder and mica powder; the mass fraction of the barium sulfate is 5% -10%; the mass fraction of the friction powder is 10% -15%; the mass fraction of the mica powder is 5% -10%;
the functional component comprises graphite powder; the mass fraction of the graphite powder is 5% -10%.
2. The method for preparing the fan yaw brake pad friction material of claim 1, comprising the steps of:
placing the reinforced fiber and the matrix component into a three-dimensional mixer, mixing for 30 minutes, and then placing the filling component and the functional component into the mixer for mixing for 30 minutes to prepare premixed powder;
heating the mixed powder by a stainless steel die for one-step forming, wherein the heating temperature is as follows: 150-180 ℃, 25-30MPa of pressure and 10-20 minutes of time;
and (3) placing the formed fan yaw brake block in an oven to be dried for 6-8 hours at the temperature of 150-160 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210994205.0A CN115418073B (en) | 2022-08-18 | 2022-08-18 | Fan yaw brake pad friction material and preparation method and application thereof |
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| CN202210994205.0A CN115418073B (en) | 2022-08-18 | 2022-08-18 | Fan yaw brake pad friction material and preparation method and application thereof |
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| CN115418073B true CN115418073B (en) | 2024-01-12 |
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| JPS5925867A (en) * | 1982-08-04 | 1984-02-09 | Daido Steel Co Ltd | Friction braking material |
| JPH0214880A (en) * | 1988-07-01 | 1990-01-18 | Tokai Carbon Co Ltd | Production of vitreous carbon composite material |
| JP2008081690A (en) * | 2006-09-29 | 2008-04-10 | Akebono Brake Ind Co Ltd | Piloerective composite particle, its manufacturing method and composite material for molding containing the composite particle |
| CN102181268A (en) * | 2011-01-13 | 2011-09-14 | 青岛华瑞丰机械有限公司 | Method for preparing yawing friction plate of wind turbine generator by using aramid fiber |
| CN103256325A (en) * | 2013-06-06 | 2013-08-21 | 焦作市力创制动器有限公司 | Vibration-damping, denoising and yaw low-speed braking pad and fabrication method thereof |
| CN105440567A (en) * | 2015-12-08 | 2016-03-30 | 安徽创新电磁离合器有限公司 | Brake pad with good braking effect and manufacturing method thereof |
| CN113929353A (en) * | 2021-09-24 | 2022-01-14 | 山西江淮重工有限责任公司 | Brake pad and preparation method and application thereof |
-
2022
- 2022-08-18 CN CN202210994205.0A patent/CN115418073B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5925867A (en) * | 1982-08-04 | 1984-02-09 | Daido Steel Co Ltd | Friction braking material |
| JPH0214880A (en) * | 1988-07-01 | 1990-01-18 | Tokai Carbon Co Ltd | Production of vitreous carbon composite material |
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