CN113025272B - Friction material and preparation method thereof - Google Patents
Friction material and preparation method thereof Download PDFInfo
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- CN113025272B CN113025272B CN202110341469.1A CN202110341469A CN113025272B CN 113025272 B CN113025272 B CN 113025272B CN 202110341469 A CN202110341469 A CN 202110341469A CN 113025272 B CN113025272 B CN 113025272B
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- 239000002783 friction material Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000004744 fabric Substances 0.000 claims abstract description 81
- 229920005989 resin Polymers 0.000 claims abstract description 32
- 239000011347 resin Substances 0.000 claims abstract description 32
- 238000009941 weaving Methods 0.000 claims abstract description 15
- 239000011265 semifinished product Substances 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 13
- 238000003825 pressing Methods 0.000 claims abstract description 12
- 239000000047 product Substances 0.000 claims abstract description 12
- 229920000742 Cotton Polymers 0.000 claims abstract description 10
- 239000000835 fiber Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000003822 epoxy resin Substances 0.000 claims description 10
- 239000003365 glass fiber Substances 0.000 claims description 10
- 229920000647 polyepoxide Polymers 0.000 claims description 10
- 239000012784 inorganic fiber Substances 0.000 claims description 4
- 239000012783 reinforcing fiber Substances 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 17
- 238000000465 moulding Methods 0.000 abstract description 3
- 238000010008 shearing Methods 0.000 abstract description 3
- 229920000297 Rayon Polymers 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005553 drilling Methods 0.000 description 5
- 238000000227 grinding Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000013067 intermediate product Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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- 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
-
- 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
- F16D69/027—Compositions based on metals or inorganic oxides
- F16D69/028—Compositions based on metals or inorganic oxides containing fibres
-
- 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
- F16D2200/0004—Materials; Production methods therefor metallic
-
- 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
-
- 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
- F16D2200/0056—Elastomers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0082—Production methods therefor
- F16D2200/0086—Moulding materials together by application of heat and pressure
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention relates to a friction material and a preparation method thereof. The method comprises the following steps: bonding the metal wire, the short cotton thread and the reinforced fiber to prepare the core spun yarn; weaving the core-spun yarn to obtain a mesh fabric; immersing the mesh cloth into resin, mixing and drying to obtain resin mesh cloth; cutting the resin mesh cloth, and pressing in a mold to obtain a semi-finished product; and continuously curing and processing the semi-finished product to obtain a finished product of the friction material. The production method adopts the mesh cloth impregnated resin, the mesh cloth is easy to impregnate and is uniformly impregnated, the mesh cloth is cut into the fabric pieces by the fabric breaker, the fabric pieces are staggered in the material to form a compact organizational structure after hot press molding, so that the shearing strength of the material is increased, the material is not easy to layer, meanwhile, the mesh cloth is hot press molded after being cut into the fabric pieces, the material is not wasted, the generation of garbage is greatly reduced, and the environment is protected.
Description
Technical Field
The invention belongs to the field of materials, and particularly relates to a friction material and a preparation method thereof.
Background
The friction material is a key part for braking and transmission of various machines, and is indispensable in various machines such as automobiles, motorcycles, ships, airplanes, engineering machines, transportation machines, chemical machines, mining machines, petroleum machines, engineering machines and the like. The friction material belongs to a key safety accessory in the application field, and although the cost proportion occupied in the main machine is small, the functional position of the friction material is very important. The friction material with excellent performance meets the practical application requirements in application, and also requires the material to be easy to produce, no waste is generated, and the production cost is reduced, so that the popularization of the friction material is facilitated.
The lamination phenomenon can occur in the production process of the existing laminated friction material; and either method results in a large amount of material waste since the laminated fabric layers must be sized to the product or machined after being produced into large panels.
Therefore, the technical scheme of the invention is provided.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a friction material and a preparation method thereof. The production method adopts the mesh cloth impregnated resin, the mesh cloth is easy to impregnate and is uniformly impregnated, the mesh cloth is cut into the fabric pieces by the fabric breaker, the fabric pieces are staggered in the material to form a compact organizational structure after hot press molding, so that the shearing strength of the material is increased, the material is not easy to layer, meanwhile, the mesh cloth is hot press molded after being cut into the fabric pieces, the material is not wasted, the generation of garbage is greatly reduced, and the environment is protected.
The scheme of the invention is to provide a preparation method of a friction material, which comprises the following steps:
(1) bonding the metal wire, the short cotton thread and the reinforced fiber to prepare the core spun yarn;
(2) weaving the core-spun yarn to obtain a mesh fabric;
(3) immersing the mesh cloth into resin, mixing and drying to obtain resin mesh cloth;
(4) cutting the resin mesh cloth, and pressing in a mold to obtain a semi-finished product;
(5) and continuously curing and processing the semi-finished product to obtain a finished product of the friction material.
Further, the structural characteristics of the friction material obtained by the present invention were analyzed:
the mesh cloth in the friction material is made of metal wires, glass fibers and other materials with high mechanical properties, and after being chopped and resin cured, the mesh cloth is uniformly distributed in the friction material (as shown in fig. 2, wherein the chopped mesh cloth and the covering yarn fibers are uniformly and randomly distributed), so that the outer surface of the covering yarn is short cotton threads with elastic toughness, and the inner part of the covering yarn is metal wires and glass fibers with good mechanical strength.
In actual use, when external force generated by mechanical braking and transmission acts on the friction material, the external force is transmitted to the core-spun yarn fibers and the mesh fabric through the resin matrix. Based on a microscopic visual angle, the covering yarn fiber and the broken mesh cloth are parts of the friction material with concentrated stress, so that the friction material can deform, and due to the structural characteristics of toughness and internal strength of the covering yarn, impact energy can be dispersed and absorbed, so that the friction material is changed from brittle fracture to ductile fracture, the effects of reinforcement and toughening are achieved, and the performance of the whole material is improved.
Preferably, in step (1), the reinforcing fibers are inorganic fibers or organic fibers; the inorganic fiber is glass fiber. The glass fiber is an inorganic non-metallic material with excellent performance, and has the characteristics of good insulativity, strong heat resistance, good corrosion resistance, high mechanical strength and the like. The most important characteristics are that the tensile strength is large, the tensile strength is 6.3-6.9 g/d in a standard state, and the tensile strength is 5.4-5.8 g/d in a wet state.
Preferably, in the step (2), the mesh cloth is woven by warps and wefts. It is emphasized that the mesh fabric is formed by interweaving the warps and the wefts, so that when an external force is applied, stress can be evenly dispersed more rapidly and more uniformly, and the overall mechanical performance of the friction material can be improved.
Preferably, the warp density is 15-30 warps per 10 cm; the density of the weft is 15-30 warps contained in each 10 cm. The density of the warp and the weft directly determines the effect of the broken grid cloth on dispersing stress; but the weaving difficulty and the raw material cost need to be considered at the same time. Through comprehensive calculation of the inventor, when the density of the warps and the wefts is 15-30 threads in each 10cm, the performance and the cost are most balanced.
Preferably, in the step (3), the resin is phenolic resin or epoxy resin; the weight ratio of the resin to the mesh cloth is 1: 1-3. The resin is finally used as a matrix of the friction material, and the mesh cloth finally bears stress points, so that the density of the stress points is determined by the total weight of the mesh cloth under the same other conditions: when the stress point density is too low, a better reinforcing and toughening effect cannot be achieved; when the density of the stress points is too high, the friction material forms too many defects and influences the mechanical property. Therefore, the inventor repeatedly verifies that the performance is most excellent when the weight ratio of the resin to the mesh fabric is 1: 1-3.
Preferably, in the step (3), the drying temperature is 80-150 DEGoAnd C, drying for 0.5-6 h.
Preferably, in the step (4), the pressing temperature is 120-180 DEGoC, the pressure intensity is 12-25 MPa; the exhaust frequency in the pressing process is 3-30 times, and the total pressure maintaining time is 2-20 min.
Preferably, in the step (5), the curing temperature is 120-190%oC, the curing time is1~24h。
Based on the same technical concept, the invention also provides a friction material prepared by the preparation method.
The invention has the beneficial effects that:
the preparation method of the friction material comprises the steps of bonding metal wires, short cotton threads and reinforcing fibers together by using viscose according to a certain proportion to prepare core-spun yarns, weaving the core-spun yarns into mesh cloth, impregnating the mesh cloth with resin, drying, cutting the mesh cloth into pieces of broken cloth by a cloth crusher, putting the pieces of broken cloth into a hot-pressing die, carrying out hot pressing to obtain a semi-finished product, carrying out heat treatment, machining and the like to obtain the finished product. The production method adopts the mesh cloth to impregnate the resin, the mesh cloth is easy to impregnate and is uniformly impregnated, the mesh cloth is cut into the fabric pieces by the fabric breaker, the fabric pieces are staggered in the material to form a compact organizational structure after hot press molding, so that the shearing strength of the material is increased, the material is not easy to layer, meanwhile, the mesh cloth is hot press molded after being cut into the fabric pieces, the material is not wasted, the generation of garbage is greatly reduced, and the environment is protected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a mesh fabric structure.
FIG. 2 is a schematic structural view of the friction material of the present invention.
The reference numbers in the figures are:
1-warp thread; 2-weft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1
The embodiment provides a preparation method of a friction material, which comprises the following steps:
(1) preparing the core-spun yarn according to the weight ratio of 10% of the copper wire, 20% of the short cotton wire, 65% of the glass fiber and 5% of the viscose;
(2) weaving the core-spun yarn by a weaving machine to obtain a mesh fabric; wherein the density of the warps is that 15 warps are contained in each 10 cm; the density of the weft is that every 10cm contains 15 warps;
(3) immersing the mesh cloth into phenolic resin with the solid content of 85 percent at 80 DEGoDrying for 5 hours under the condition C, and obtaining the resin mesh cloth after the mesh cloth is increased by 1 time;
(4) the resin mesh was chopped to a size of about 20mm x50mm and placed in a die at 120oC. Pressing under 12MPa, exhausting for 3 times, and keeping the pressure for 10min to obtain a semi-finished product;
(5) continuing said semi-finished product at 120oAnd C, curing for 1h, taking out, turning the inner and outer arc surfaces, grinding the inner and outer arc surfaces, drilling a mounting hole and the like, and obtaining a finished product of the friction material.
Example 2
The embodiment provides a preparation method of a friction material, which comprises the following steps:
(1) preparing the core spun yarn according to 12% of the weight of the copper wire, 24% of the weight of the short cotton wire, 60% of the weight of the glass fiber and 6% of the weight of the viscose;
(2) weaving the core-spun yarn by a weaving machine to obtain a mesh fabric; wherein the density of the warps is that 30 warps are contained in each 10 cm; the density of the weft is 30 warps contained in each 10 cm;
(3) the mesh cloth is immersed in epoxy resin with the solid content of 85 percent, and 110 percent of the epoxy resin is immersed after the epoxy resin is immersedoDrying for 2 hours under the condition C, and increasing the weight of the impregnated mesh cloth by 80 percent to obtain the resin mesh cloth;
(4) the resin mesh was chopped to a size of about 25mm x 150mm and placed in a mold at 170oC. Pressing under 23MPa, exhausting for 10 times, and keeping the pressure for 12min to obtain a semi-finished product;
(5) continuing said intermediate product at 180oAnd C, curing for 5 hours, taking out, turning the inner and outer arc surfaces, grinding the inner and outer arc surfaces, drilling a mounting hole and the like, and obtaining a finished product of the friction material.
Example 3
The embodiment provides a preparation method of a friction material, which comprises the following steps:
(1) preparing the core-spun yarn according to 8% of the weight of the copper wire, 15% of the weight of the short cotton wire, 73% of the weight of the glass fiber and 4% of the weight of the viscose;
(2) weaving the core-spun yarn by a weaving machine to obtain a mesh fabric; wherein the density of the warps is that 23 warps are contained in each 10 cm; the density of the weft is that 23 warps are contained in each 10 cm;
(3) the mesh cloth is immersed in epoxy resin with the solid content of 60 percent, and the epoxy resin is immersed at 110 DEG after the immersionoDrying for 3 hours under the condition C, and obtaining the resin mesh cloth after the weight of the mesh cloth is increased by 60 percent;
(4) the resin mesh cloth was chopped to a size of about 40mm x 40mm and placed in a mold at 150 foC. Pressing under 18MPa, exhausting for 15 times, and keeping the pressure for 11min to obtain a semi-finished product;
(5) continuing said intermediate product at 155oAnd C, curing for 12h, taking out, turning the inner and outer arc surfaces, grinding the inner and outer arc surfaces, drilling a mounting hole and the like, and obtaining a finished product of the friction material.
Example 4
The embodiment provides a preparation method of a friction material, which comprises the following steps:
(1) preparing the core spun yarn according to 8% of the weight of the copper wire, 18% of the weight of the short cotton wire, 70% of the weight of the glass fiber and 4% of the weight of the viscose;
(2) weaving the core-spun yarn by a weaving machine to obtain a mesh fabric; wherein the density of the warps is that 15 warps are contained in each 10 cm; the density of the weft is 30 warps contained in each 10 cm;
(3) immersing the mesh cloth and epoxy resin according to the weight ratio of 1:1, mixing and then adding the mixture into a container at 80%oDrying for 6 hours under the condition C to obtain the resin mesh fabric;
(4) the resin mesh was chopped to a size of about 25mm x 70mm and placed in a mold at 120 deg.foC. Pressing under 25MPa, exhausting for 3 times, and keeping the pressure for 20min to obtain a semi-finished product;
(5) continuing the semi-finished product at 130oAnd C, curing for 24 hours, taking out, turning the inner and outer arc surfaces, grinding the inner and outer arc surfaces, drilling a mounting hole and the like, and obtaining a finished product of the friction material.
Example 5
The embodiment provides a preparation method of a friction material, which comprises the following steps:
(1) preparing the core-spun yarn according to 6% of the weight of the copper wire, 18% of the weight of the short cotton wire, 69% of the weight of the glass fiber and 7% of the weight of the viscose;
(2) weaving the core-spun yarn by a weaving machine to obtain a mesh fabric; wherein the density of the warps is that 30 warps are contained in each 10 cm; the density of the weft is that every 10cm contains 15 warps;
(3) the mesh cloth is dipped into epoxy resin with 70 percent of solid content, and the epoxy resin is dipped at 140 DEGoDrying for 0.5h under the condition of C to obtain the resin mesh fabric;
(4) the resin mesh was chopped to a size of about 30mm x 100mm and placed in a mold at 180 deg.foC. Pressing under 15MPa, exhausting for 5 times, and keeping the pressure for 12min to obtain a semi-finished product;
(5) continuing said intermediate product at 170oAnd C, curing for 6 hours, taking out, turning the inner and outer arc surfaces, grinding the inner and outer arc surfaces, drilling a mounting hole and the like, and obtaining a finished product of the friction material.
In order to characterize the properties of the resulting friction material, a comparative test was performed with respect to the friction material obtained in the prior art (comparative example), and the results are shown in table 1.
The preparation method of the comparative example was: the single-layer mesh cloth is dried after being impregnated with resin, then cut into impregnated cloth with a required shape, and is formed by hot press forming after selecting corresponding layers of laminated sheets according to the thickness of a product, and then is machined by polishing, turning and the like. It should be emphasized that cutting results in a great deal of waste of cloth, and the cloth layers are laminated and then hot-pressed, so that the layers are easily layered and the shear strength is relatively low.
TABLE 1 test results
| Detecting items | Example 1 | Comparative example |
| Density (t/m 3) | 1.9~2.0 | 1.9~2.0 |
| Tensile Strength (MPa) | ≥50 | ≥45 |
| Compressive Strength (MPa) | ≥380 | ≥200 |
| Shear strength (MPa) | ≥110 | ≥90 |
| Coefficient of friction | ≥0.48 | ≥0.45 |
| Hardness (HRR) | 98 | 106 |
The detection results show that the friction material obtained by the invention is superior to similar products in the items of tensile strength, compressive strength, shear strength and friction coefficient, and the hardness of the embodiment is lower than that of the comparative example, so that the friction dual surface can be protected better, and the better performance can be achieved.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and any person skilled in the art can easily conceive of changes and substitutions within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (2)
1. A preparation method of a friction material is characterized by comprising the following steps:
(1) bonding the metal wire, the short cotton thread and the reinforcing fiber according to the weight ratio of 10:20:65 to prepare the core-spun yarn; wherein the reinforcing fiber is an inorganic fiber or an organic fiber; the inorganic fiber is glass fiber;
(2) weaving the core-spun yarn to obtain a mesh fabric; wherein the grid cloth is woven by warps and wefts; the warp density is 15-30 warps in every 10 cm; the density of the weft is 15-30 warps contained in each 10 cm;
(3) immersing the mesh cloth into resin, mixing and drying to obtain resin mesh cloth; wherein the resin is phenolic resin or epoxy resin; the weight ratio of the resin to the mesh cloth is1: 1-3; the drying temperature is 80-150 DEG CoC, drying for 0.5-6 h;
(4) cutting the resin mesh cloth, and pressing in a mold to obtain a semi-finished product; the pressing temperature is 120-180 DEG CoC, the pressure intensity is 12-25 MPa; exhausting for 3-30 times in the pressing process, and keeping the pressure for 2-20 min;
(5) continuously curing and processing the semi-finished product to obtain a finished product of the friction material; the curing temperature is 120-190%oAnd C, curing for 1-24 hours.
2. A friction material obtained by the production method according to claim 1.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1508418A4 (en) * | 2002-05-20 | 2006-11-29 | Du Pont Toray Co Ltd | Shreds for reinforcement, fiber-reinforced product using the shreds, and method of manufacturing the shreds and the product |
| US20070270069A1 (en) * | 2006-05-18 | 2007-11-22 | Sulzer Euroflamm Us Inc. | Friction material and system and method for making the friction material |
| CN103342985B (en) * | 2013-06-06 | 2015-01-14 | 贵阳天龙摩擦材料有限公司 | Friction material without asbestos layer and manufacturing method |
| CN210940784U (en) * | 2019-10-18 | 2020-07-07 | 海宁杰特玻纤布业有限公司 | Reinforced heat-resistant environment-friendly glass fiber fabric friction material |
| CN212643361U (en) * | 2020-06-22 | 2021-03-02 | 贵阳天龙摩擦材料有限公司 | Clutch plate and conical clutch |
| CN112226206A (en) * | 2020-11-09 | 2021-01-15 | 贵阳天龙摩擦材料有限公司 | Preparation method of integrally woven friction material |
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