CN111089132A - Friction material and preparation method thereof - Google Patents
Friction material and preparation method thereof Download PDFInfo
- Publication number
- CN111089132A CN111089132A CN201911370448.1A CN201911370448A CN111089132A CN 111089132 A CN111089132 A CN 111089132A CN 201911370448 A CN201911370448 A CN 201911370448A CN 111089132 A CN111089132 A CN 111089132A
- Authority
- CN
- China
- Prior art keywords
- parts
- friction material
- friction
- pressure
- pouring
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000002783 friction material Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000003365 glass fiber Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- 239000011159 matrix material Substances 0.000 claims abstract description 11
- 239000002557 mineral fiber Substances 0.000 claims abstract description 10
- 239000000945 filler Substances 0.000 claims abstract description 9
- 230000002787 reinforcement Effects 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 18
- 244000226021 Anacardium occidentale Species 0.000 claims description 14
- 235000020226 cashew nut Nutrition 0.000 claims description 14
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 12
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 12
- 229910052947 chalcocite Inorganic materials 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims description 9
- 239000005995 Aluminium silicate Substances 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 229920000459 Nitrile rubber Polymers 0.000 claims description 8
- 235000012211 aluminium silicate Nutrition 0.000 claims description 8
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 claims description 8
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 8
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical group O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 4
- 239000003607 modifier Substances 0.000 claims description 3
- -1 reinforcements Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 claims 1
- 239000002994 raw material Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 6
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- YXLXNENXOJSQEI-UHFFFAOYSA-L Oxine-copper Chemical group [Cu+2].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 YXLXNENXOJSQEI-UHFFFAOYSA-L 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000692 Student's t-test Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012353 t test Methods 0.000 description 1
Classifications
-
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/149—Antislip compositions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
- C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
- C08J2361/14—Modified phenol-aldehyde condensates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2461/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2461/04—Condensation polymers of aldehydes or ketones with phenols only
- C08J2461/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
- C08J2461/14—Modified phenol-aldehyde condensates
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0862—Nickel
-
- 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
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2275—Ferroso-ferric oxide (Fe3O4)
-
- 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
- C08K2003/3009—Sulfides
-
- 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
- C08K2201/01—Magnetic additives
-
- 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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a friction material and a preparation method thereof. The friction material consists of a resin matrix, a reinforcement, a filler and a friction performance regulator. The friction material disclosed by the invention adopts the modified phenolic resin as a resin matrix, the mineral fiber or the glass fiber as a reinforcement, and the preferable filler and the friction performance regulator are added, so that the friction coefficient of the material is greatly increased, the wear rate is reduced, and the wear resistance is enhanced.
Description
Technical Field
The invention belongs to the technical field of brake material preparation, and particularly relates to a friction material for a brake and a preparation method thereof.
Background
In recent years, rapid development of industry and machinery has led to increasing running speeds of airplanes, vehicles and the like, and requirements of friction materials are also increasing. At present, various advanced materials are applied to the research of friction materials, and a plurality of novel friction materials are produced.
Carbon fiber has the advantages of good friction performance, high temperature resistance, fatigue resistance, small specific gravity and the like, and is an excellent raw material for manufacturing friction materials, however, carbon fiber friction materials have high cost and are difficult to prepare. Ceramic fiber is a refractory material, and because it has the advantages of high temperature resistance, good thermal stability, light weight, mechanical vibration resistance and the like, it is also gradually an excellent raw material for preparing friction materials, but its preparation process is complex and the rejection rate of the preparation is high.
Compared with other types of friction materials, the resin-based friction material has the advantages of wide application range, simple process, low production cost, easy performance adjustment and the like, and has been widely applied and developed in the field of friction materials, and the development of the resin-based friction material becomes a hotspot of research and development at present.
Disclosure of Invention
The invention aims to provide a friction material and a preparation method thereof.
A friction material is composed of a resin matrix, a reinforcement, a filler and a friction performance modifier.
The resin matrix is phenolic resin modified by cashew nut shell oil or phenolic resin modified by nitrile rubber.
The reinforcement is mineral fiber or glass fiber.
The filler is one or more of chalcocite, copper sulfide, molybdenum disulfide and magnetite.
The friction performance regulator is kaolin, copper powder or nickel powder.
The specification of the copper powder is 200-300 meshes.
The specification of the nickel powder is 200-300 meshes.
A preparation method of a friction material comprises the following steps:
(1) pouring the reinforcement and the filler into a ball mill simultaneously to be uniformly mixed for 2-3 h;
(2) pouring the resin matrix into a ball mill to uniformly mix the resin matrix for 1 to 2 hours;
(3) pouring the friction performance regulator into a ball mill to be uniformly mixed for 1-2 h;
(4) after the materials are mixed evenly, pouring the mixture into a mould, and carrying out cold press molding under the room temperature condition of 30-50 MPa;
(5) placing the mould into a drying box, setting the temperature at 180-220 ℃, heating and drying for 10-20min, placing the mould under a hydraulic press for pressing after drying, setting the pressure at 30-50MPa, continuously releasing the pressure for 3 times with the interval time of 10s, 20s and 50s in the pressing process, continuously reducing the pressure for 3 times and exhausting, keeping the pressure unchanged until the temperature is reduced to the room temperature, and then unloading the load;
(6) and (3) placing the formed product in a box-type heat preservation furnace for heating treatment at the temperature of 160-170 ℃ for 4-6h, and taking out after furnace cooling.
The invention has the beneficial effects that: the friction material disclosed by the invention adopts the modified phenolic resin as a resin matrix, the mineral fiber or the glass fiber as a reinforcement, and the preferable filler and the friction performance regulator are added, so that the friction coefficient of the material is greatly increased, the wear rate is reduced, and the wear resistance is enhanced.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
A friction material is prepared from the following raw materials in parts by weight: 15 parts of cashew nut shell oil modified phenolic resin, 58 parts of mineral fiber, 12 parts of chalcocite, 5 parts of molybdenum disulfide and 2 parts of copper powder.
The preparation method of the friction material comprises the following steps:
(1) according to the weight parts, 58 parts of mineral fiber, 12 parts of chalcocite and 5 parts of molybdenum disulfide are poured into a ball mill at the same time to be uniformly mixed for 2.5 hours;
(2) pouring 15 parts of cashew nut shell oil modified phenolic resin into a ball mill to be uniformly mixed for 1.5 hours;
(3) pouring 2 parts of copper powder into a ball mill to be uniformly mixed for 1.5 hours;
(4) after the materials are uniformly mixed, pouring the materials into a mold, and carrying out cold press molding at the room temperature of 40 MPa;
(5) placing the mould into a drying oven, setting the temperature at 210 ℃, heating and drying for 15min, placing the mould under a hydraulic press for pressing after drying, setting the pressure at 40MPa, continuously releasing the pressure for 3 times in the pressing process, wherein the time intervals are 10s, 20s and 50s, continuously reducing the pressure for 3 times, exhausting, keeping the pressure unchanged until the temperature is reduced to the room temperature, and unloading the load;
(6) and (3) placing the formed product in a box type heat preservation furnace for heating treatment at 165 ℃ for 5 hours, and taking out after furnace cooling.
Example 2
A friction material is prepared from the following raw materials in parts by weight: 18 parts of nitrile rubber modified phenolic resin, 60 parts of glass fiber, 10 parts of copper sulfide, 8 parts of magnetite and 8 parts of kaolin.
The preparation method of the friction material comprises the following steps:
(1) according to the weight parts, 60 parts of glass fiber, 10 parts of copper sulfide and 8 parts of magnetite are taken, and are poured into a ball mill to be uniformly mixed for 2 hours;
(2) pouring 18 parts of nitrile rubber modified phenolic resin into a ball mill to be uniformly mixed for 2 hours;
(3) pouring 8 parts of kaolin into a ball mill to be uniformly mixed for 1 hour;
(4) after the materials are uniformly mixed, pouring the materials into a mould, and carrying out cold press molding at the room temperature of 35 MPa;
(5) placing the mould into a drying oven, setting the temperature at 180 ℃, heating and drying for 20min, placing the mould under a hydraulic press for pressing after drying, setting the pressure at 35MPa, continuously releasing the pressure for 3 times in the pressing process, wherein the time intervals are 10s, 20s and 50s, continuously reducing the pressure and exhausting for 3 times, keeping the pressure unchanged until the temperature is reduced to the room temperature, and then unloading the load;
(6) and (3) placing the formed product in a box type heat preservation furnace for heating treatment at the temperature of 170 ℃ for 4 hours, and taking out the formed product after furnace cooling.
Example 3
A friction material is prepared from the following raw materials in parts by weight: 12 parts of cashew nut shell oil modified phenolic resin, 6 parts of nitrile rubber modified phenolic resin, 48 parts of glass fiber, 8 parts of chalcocite, 8 parts of copper sulfide, 8 parts of molybdenum disulfide, 3 parts of kaolin and 3 parts of nickel powder.
The preparation method of the friction material comprises the following steps:
(1) according to the weight parts, 48 parts of glass fiber, 8 parts of chalcocite, 8 parts of copper sulfide and 8 parts of molybdenum disulfide are poured into a ball mill to be uniformly mixed for 3 hours;
(2) pouring 12 parts of cashew nut shell oil modified phenolic resin and 6 parts of nitrile rubber modified phenolic resin into a ball mill to be uniformly mixed for 2 hours;
(3) pouring 3 parts of kaolin and 3 parts of nickel powder into a ball mill to be uniformly mixed for 2 hours;
(4) after the materials are uniformly mixed, pouring the materials into a mould, and carrying out cold press molding at room temperature of 50 MPa;
(5) placing the mould into a drying oven, setting the temperature at 220 ℃, heating and drying for 15min, placing the mould under a hydraulic press for pressing after drying, setting the pressure at 50MPa, continuously releasing the pressure for 3 times in the pressing process, wherein the time intervals are 10s, 20s and 50s, continuously reducing the pressure for 3 times, exhausting, keeping the pressure unchanged until the temperature is reduced to the room temperature, and unloading the load;
(6) and (3) placing the formed product in a box type heat preservation furnace for heating treatment at the temperature of 170 ℃ for 6 hours, and taking out after furnace cooling.
Example 4
A friction material is prepared from the following raw materials in parts by weight: 23 parts of cashew nut shell oil modified phenolic resin, 66 parts of glass fiber, 6 parts of chalcocite, 12 parts of copper sulfide, 3 parts of magnetite and 12 parts of nickel powder.
The preparation method of the friction material comprises the following steps:
(1) according to the weight parts, 66 parts of glass fiber, 6 parts of chalcocite, 12 parts of copper sulfide and 3 parts of magnetite are poured into a ball mill to be uniformly mixed for 2 hours;
(2) pouring 23 parts of cashew nut shell oil modified phenolic resin into a ball mill to be uniformly mixed for 1.5 hours;
(3) pouring 12 parts of nickel powder into a ball mill to be uniformly mixed for 1.5 hours;
(4) after the materials are uniformly mixed, pouring the materials into a mold, and carrying out cold press molding at room temperature of 33 MPa;
(5) placing the die into a drying oven, setting the temperature to be 185 ℃, heating and drying for 16min, placing the die under a hydraulic press for pressing after drying, setting the pressure to be 35MPa, continuously releasing the pressure for 3 times in the pressing process, wherein the time intervals are 10s, 20s and 50s, continuously reducing the pressure and exhausting for 3 times, keeping the pressure unchanged until the temperature is reduced to the room temperature, and then unloading the load;
(6) and (3) placing the formed product in a box type heat preservation furnace for heating treatment at 165 ℃ for 6 hours, and taking out after furnace cooling.
Example 5
A friction material is prepared from the following raw materials in parts by weight: 9 parts of cashew nut shell oil modified phenolic resin, 9 parts of nitrile rubber modified phenolic resin, 28 parts of mineral fiber, 35 parts of glass fiber, 9 parts of molybdenum disulfide, 9 parts of magnetite and 8 parts of kaolin.
The preparation method of the friction material comprises the following steps:
(1) according to the weight parts, 28 parts of mineral fiber, 35 parts of glass fiber, 9 parts of molybdenum disulfide and 9 parts of magnetite are taken, and are poured into a ball mill to be uniformly mixed for 2.6 hours;
(2) pouring 9 parts of cashew nut shell oil modified phenolic resin and 9 parts of nitrile rubber modified phenolic resin into a ball mill to be uniformly mixed for 1 hour;
(3) pouring 8 parts of kaolin into a ball mill to be uniformly mixed for 2 hours;
(4) after the materials are uniformly mixed, pouring the materials into a mold, and carrying out cold press molding at the room temperature of 40 MPa;
(5) placing the mould into a drying oven, setting the temperature at 220 ℃, heating and drying for 20min, placing the mould under a hydraulic press for pressing after drying, setting the pressure at 40MPa, continuously releasing the pressure for 3 times in the pressing process, wherein the time intervals are 10s, 20s and 50s, continuously reducing the pressure for 3 times, exhausting, keeping the pressure unchanged until the temperature is reduced to the room temperature, and unloading the load;
(6) and (3) placing the formed product in a box type heat preservation furnace for heating treatment at the temperature of 170 ℃ for 5 hours, and taking out after furnace cooling.
Example 6
A friction material is prepared from the following raw materials in parts by weight: 45 parts of cashew nut shell oil modified phenolic resin, 55 parts of glass fiber, 21 parts of molybdenum disulfide and 12 parts of copper powder.
The preparation method of the friction material comprises the following steps:
(1) according to the weight parts, 55 parts of glass fiber and 21 parts of molybdenum disulfide are poured into a ball mill to be uniformly mixed for 2 hours;
(2) pouring 45 parts of cashew nut shell oil modified phenolic resin into a ball mill to be uniformly mixed for 2 hours;
(3) pouring the friction performance regulator into a ball mill to be uniformly mixed for 2 hours;
(4) after the materials are uniformly mixed, pouring the materials into a mold, and carrying out cold press molding at the room temperature of 40 MPa;
(5) placing the die into a drying oven, setting the temperature to be 190 ℃, heating and drying for 15min, placing the die under a hydraulic press for pressing after drying, setting the pressure to be 35MPa, continuously releasing the pressure for 3 times in the pressing process, wherein the time intervals are 10s, 20s and 50s, continuously reducing the pressure and exhausting for 3 times, keeping the pressure unchanged until the temperature is reduced to the room temperature, and then unloading the load;
(6) and (3) placing the formed product in a box type heat preservation furnace for heating treatment at 165 ℃ for 5 hours, and taking out after furnace cooling.
Comparative example 1
A friction material is prepared from the following raw materials in parts by weight: 15 parts of cashew nut shell oil modified phenolic resin, 58 parts of mineral fiber, 12 parts of chalcocite and 5 parts of molybdenum disulfide.
The preparation method of the friction material comprises the following steps:
(1) according to the weight parts, 58 parts of mineral fiber, 12 parts of chalcocite and 5 parts of molybdenum disulfide are poured into a ball mill at the same time to be uniformly mixed for 2.5 hours;
(2) pouring 15 parts of cashew nut shell oil modified phenolic resin into a ball mill to be uniformly mixed for 1.5 hours;
(3) after the materials are uniformly mixed, pouring the materials into a mold, and carrying out cold press molding at the room temperature of 40 MPa;
(4) placing the mould into a drying oven, setting the temperature at 210 ℃, heating and drying for 15min, placing the mould under a hydraulic press for pressing after drying, setting the pressure at 40MPa, continuously releasing the pressure for 3 times in the pressing process, wherein the time intervals are 10s, 20s and 50s, continuously reducing the pressure for 3 times, exhausting, keeping the pressure unchanged until the temperature is reduced to the room temperature, and unloading the load;
(5) and (3) placing the formed product in a box type heat preservation furnace for heating treatment at 165 ℃ for 5 hours, and taking out after furnace cooling.
Experimental example: test for Friction Properties
And (3) detecting the friction performance of the friction material sample by adopting a high-speed high-temperature friction and wear testing machine, wherein the friction performance comprises a friction coefficient and a wear rate. Before testing, a No. 45 steel disc is selected as a friction pair, the positive pressure is set to be 45N, the rotating speed is set to be 200r/min, the distance between a sample and a rotating center is 0.03m, and the contact area between the sample and the friction pair is 200mm3。
During the test, the magnitude of the friction torque and the mass reduction of the test specimen before and after the experiment were recorded. Then, the friction coefficient and the wear rate can be respectively calculated by the formulas 1 and 2:
wherein, the physical meanings represented by the symbols in the formulas (1) and (2) are respectively as follows: μ -coefficient of friction; v-wear rate (× 10-7 Ag · m); t-test torque (Nm); r-the distance between the sample and the rotation center of the friction pair, 0.03 m; n-experimental positive pressure, 40N; m is1-mass (g) of the sample before rubbing; m is2-mass after rubbing (g); n-number of friction turns.
The test results are shown in table 1:
TABLE 1
Note: represents P <0.05 compared to the example 1 group.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A friction material, characterized in that it consists of a resin matrix, reinforcements, fillers and friction performance modifiers.
2. The friction material of claim 1, wherein the resin matrix is a cashew nut shell oil modified phenolic resin or a nitrile rubber modified phenolic resin.
3. The friction material of claim 1 wherein the reinforcement is mineral or glass fibers.
4. The friction material of claim 1 wherein said filler is one or more of chalcocite, copper sulfide, molybdenum disulfide, magnetite.
5. The friction material of claim 1 wherein said friction modifier is kaolin, copper or nickel powder.
6. The friction material of claim 5 wherein said copper powder is 200-300 mesh.
7. The friction material as recited in claim 5 wherein the nickel powder is 200-300 mesh.
8. The preparation method of the friction material is characterized by comprising the following steps of:
(1) pouring the reinforcement and the filler into a ball mill simultaneously to be uniformly mixed for 2-3 h;
(2) pouring the resin matrix into a ball mill to uniformly mix the resin matrix for 1 to 2 hours;
(3) pouring the friction performance regulator into a ball mill to be uniformly mixed for 1-2 h;
(4) after the materials are mixed evenly, pouring the mixture into a mould, and carrying out cold press molding under the room temperature condition of 30-50 MPa;
(5) placing the mould into a drying box, setting the temperature at 180-220 ℃, heating and drying for 10-20min, placing the mould under a hydraulic press for pressing after drying, setting the pressure at 30-50MPa, continuously releasing the pressure for 3 times with the interval time of 10s, 20s and 50s in the pressing process, continuously reducing the pressure for 3 times and exhausting, keeping the pressure unchanged until the temperature is reduced to the room temperature, and then unloading the load;
(6) and (3) placing the formed product in a box-type heat preservation furnace for heating treatment at the temperature of 160-170 ℃ for 4-6h, and taking out after furnace cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911370448.1A CN111089132A (en) | 2019-12-26 | 2019-12-26 | Friction material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911370448.1A CN111089132A (en) | 2019-12-26 | 2019-12-26 | Friction material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111089132A true CN111089132A (en) | 2020-05-01 |
Family
ID=70397715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911370448.1A Pending CN111089132A (en) | 2019-12-26 | 2019-12-26 | Friction material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111089132A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1446875A (en) * | 2003-01-28 | 2003-10-08 | 西北工业大学 | Paper based friction material with carbon fibers enhanced and its preparation method |
| CN1814657A (en) * | 2005-02-02 | 2006-08-09 | 中南大学 | Environment-protection type high-performance automobile braking piece and making method |
| CN102180618A (en) * | 2011-02-16 | 2011-09-14 | 杭州优纳摩擦材料有限公司 | Friction material for preparing NAO brake pad |
| CN102516942A (en) * | 2011-11-23 | 2012-06-27 | 常熟钰泰隆摩擦新材料科技有限公司 | Environment-friendly type friction material modified by rare earth oxide, and preparation method thereof |
| CN105713569A (en) * | 2016-03-09 | 2016-06-29 | 苏州莱特复合材料有限公司 | Preparation method of fiber-doped resin based friction material |
| CN106051006A (en) * | 2016-07-11 | 2016-10-26 | 福州大学 | Rare-earth oxide modified resin-based automotive brake friction material and preparation method thereof |
| CN108412925A (en) * | 2018-03-20 | 2018-08-17 | 安徽三联学院 | A kind of material and material preparation method of automotive brake pads |
| CN108559446A (en) * | 2018-03-27 | 2018-09-21 | 西北工业大学 | A kind of fiber-reinforced resin base Wet-type friction material and preparation method |
-
2019
- 2019-12-26 CN CN201911370448.1A patent/CN111089132A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1446875A (en) * | 2003-01-28 | 2003-10-08 | 西北工业大学 | Paper based friction material with carbon fibers enhanced and its preparation method |
| CN1814657A (en) * | 2005-02-02 | 2006-08-09 | 中南大学 | Environment-protection type high-performance automobile braking piece and making method |
| CN102180618A (en) * | 2011-02-16 | 2011-09-14 | 杭州优纳摩擦材料有限公司 | Friction material for preparing NAO brake pad |
| CN102516942A (en) * | 2011-11-23 | 2012-06-27 | 常熟钰泰隆摩擦新材料科技有限公司 | Environment-friendly type friction material modified by rare earth oxide, and preparation method thereof |
| CN105713569A (en) * | 2016-03-09 | 2016-06-29 | 苏州莱特复合材料有限公司 | Preparation method of fiber-doped resin based friction material |
| CN106051006A (en) * | 2016-07-11 | 2016-10-26 | 福州大学 | Rare-earth oxide modified resin-based automotive brake friction material and preparation method thereof |
| CN108412925A (en) * | 2018-03-20 | 2018-08-17 | 安徽三联学院 | A kind of material and material preparation method of automotive brake pads |
| CN108559446A (en) * | 2018-03-27 | 2018-09-21 | 西北工业大学 | A kind of fiber-reinforced resin base Wet-type friction material and preparation method |
Non-Patent Citations (2)
| Title |
|---|
| 摩擦学学会《摩擦磨损》编辑部等译: "《制动器、离合器摩擦材料专利译文集（第一册）》", 31 March 1987 * |
| 韩俊瑞等: "树脂粘结剂含量对刹车材料性能的影响", 《机械设计与制造》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108728041B (en) | Metal-less environment-friendly friction material for automobile brake pad and preparation method thereof | |
| CN103059504B (en) | A kind of wear resistant automobile braking composite material and preparation method thereof that strengthens | |
| CN100359200C (en) | Reinforced brake lining | |
| CN102295783B (en) | Heat-resisting modified bamboo fiber and method for preparing automotive brake friction material from same | |
| CN103223490A (en) | Method for manufacturing motorcycle crank shaft through powder metallurgy | |
| CN101096453A (en) | Formula of rubber-free type winding form clutch plate and technique thereof | |
| WO2017173761A1 (en) | Inlaid brake pad and manufacturing method therefor | |
| CN113124076A (en) | Low-resin-based aramid pulp wear-resistant disc brake pad and preparation method thereof | |
| CN103223489A (en) | Method for manufacturing eccentric wheel through powder metallurgy | |
| CN112145599A (en) | Processing technology of calcium sulfate whisker brake pad | |
| CN104877632A (en) | Low-resin friction material and preparation method thereof | |
| CN107216602A (en) | A kind of clutch driven plate friction material and preparation method thereof | |
| CN102773482A (en) | Method for manufacturing butterfly valve rod by powder metallurgy | |
| CN103103868B (en) | High-performance paper base frication material and preparation technology thereof | |
| CN109931350B (en) | Copper-free graphene ceramic brake pad composite material, brake pad, preparation method and application thereof | |
| CN111089132A (en) | Friction material and preparation method thereof | |
| CN106086718A (en) | A kind of clutch iron base composite friction material and preparation method thereof | |
| CN101407619A (en) | Preparation of glass fibre / polyetheretherketone composite material | |
| CN106221122A (en) | The formula of a kind of heat-resistant antifriction membrane material and preparation technology | |
| CN114151481B (en) | Large-plate special-shaped friction plate for engineering machinery, preparation method and mold | |
| CN115260676A (en) | Polytetrafluoroethylene-based composite material, preparation method thereof and application of polytetrafluoroethylene-based composite material as high-speed sealing material | |
| CN104130748B (en) | A kind of resin-matrix friction material | |
| CN113251090A (en) | Composite wear-resistant material for brake pad and preparation method thereof | |
| CN102504476B (en) | Preparation method of cardanol modified boron-containing phenolic resin-based glass fiber composite wiper for finishing mill | |
| CN105864329A (en) | Differential friction plate for double-twisting machine and machining method of differential friction plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200501 |