CN110529531A - Friction plate structure and its manufacturing method - Google Patents

Friction plate structure and its manufacturing method Download PDF

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Publication number
CN110529531A
CN110529531A CN201810505926.4A CN201810505926A CN110529531A CN 110529531 A CN110529531 A CN 110529531A CN 201810505926 A CN201810505926 A CN 201810505926A CN 110529531 A CN110529531 A CN 110529531A
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CN
China
Prior art keywords
friction plate
plate structure
thermosetting resin
carbon fiber
cloth
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
Application number
CN201810505926.4A
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Chinese (zh)
Inventor
郑益庆
江以文
吴昌谋
林柏均
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LinkWin Technology Co Ltd
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LinkWin Technology Co Ltd
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Priority to CN201810505926.4A priority Critical patent/CN110529531A/en
Publication of CN110529531A publication Critical patent/CN110529531A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • F16D69/023—Composite materials containing carbon and carbon fibres or fibres made of carbonizable material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/14—Mixture of at least two fibres made of different materials
    • 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
    • F16D2069/005—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces having a layered structure
    • F16D2069/008—Layers of fibrous materials
    • 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
    • F16D2200/0052—Carbon
    • 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
    • F16D2200/0073—Materials; Production methods therefor containing fibres or particles having lubricating properties
    • 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
    • F16D2200/0078—Materials; Production methods therefor laminated
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

The present invention provides friction plate structure and its manufacturing method, the thickness of friction plate structure is between 0.45~1mm, its with carbon cloth, then material, fid, then material and carbon cloth sequence be formed by stacking, wherein: the carbon cloth is formed by multiple fibre bundle weavings, and the fibre bundle is twisted together by multiple staple fibers and so that multiple staple fibers is axially formed part overlapping in the one of the fibre bundle and hand over around keeping the length direction of each staple fiber corresponding with the axial direction of the fibre bundle；Then material penetrates into the fiber interfascicular in the carbon cloth and is greater than 80% up to impregnation rate for this, and the fibre bundle of the carbon cloth is made locally to expose to the then material with wave crest apex region；And the Radial drawing strength of the friction plate structure, between 90MPa~177MPa, for axial tensile strength between 60MPa~136MPa, sound rubs ratio between 0.8~0.98.

Description

Friction plate structure and manufacturing method thereof
Technical Field
The present invention relates to a friction plate structure, and more particularly, to a friction plate structure containing non-continuous carbon fibers and having high resin impregnation self-lubrication and a method for manufacturing the same.
Background
The friction material is a necessity applied to power machinery, and the action principle of the friction material is mainly based on the friction relation between the friction material and a dual mechanical device to generate the effect of power transmission or braking. Most mechanical appliances or equipment are provided with friction materials, so the quality of the friction materials directly influences the performance of the mechanical appliances or equipment and even the personal safety of operators.
The friction plate for the power machine at present mainly comprises asbestos, metal or paper base, and these materials all have their defects or limitations, for example:
the friction plate made of asbestos developed at the earliest time has proved to have considerable influence and harm on human bodies and environment, and is replaced by other friction materials developed at the later stage.
The friction plate made of metal has the problem of metal corrosion, and is easy to generate sharp noise due to excessive wear or unevenness of the surface of the friction plate in the using process.
The friction plate made of paper-based material has the advantage of relatively low material cost, but has the defects of relatively limited friction performance, poor durability and incapability of bearing excessive friction consumption force, so that the friction plate can be only applied to the mechanical field with low mechanical friction requirement, and is not applied to high-order machinery with high friction performance requirement.
Disclosure of Invention
In order to solve the problems of the prior asbestos, metal or paper-based friction plate, the invention provides a friction plate structure, the thickness of which is between 0.45 and 1mm, and the friction plate structure is formed by overlapping carbon fiber cloth, a bonding material, a supporting material, a bonding material and the carbon fiber cloth in sequence, wherein: the carbon fiber cloth is formed by interweaving a plurality of fiber bundles, the fiber bundles are twisted by a plurality of short fibers to enable the short fibers to form partial overlapping and winding in one axial direction of the fiber bundles, and the length direction of each short fiber corresponds to the axial direction of the fiber bundles; the adhesive material penetrates into the fiber bundles of the carbon fiber cloth to reach the impregnation rate of more than 80 percent, and the fiber bundles of the carbon fiber cloth are partially exposed out of the adhesive material in the peak area of the wave crest; the radial tensile strength of the friction plate structure is 90-177 MPa, the axial tensile strength is 60-136 MPa, and the dynamic-static friction ratio is 0.8-0.98.
As a further improvement of the present invention, the adhesive material contains a thermoplastic resin or a thermosetting resin.
As a further improvement of the present invention, the thermoplastic resin is polycarbonate and the thermosetting resin is epoxy resin.
As a further improvement of the invention, the supporting material is carbon fiber cloth, glass fiber cloth, Kevlar woven cloth or basalt woven cloth.
The invention further provides a manufacturing method of the friction plate structure, which comprises the following steps: coating colloidal thermosetting resin on the surface of release paper to form a film shape; coating the thermosetting resin on the release paper on a carbon fiber cloth and then tearing off the release paper; then covering a supporting material on the thermosetting resin, covering another piece of release paper containing the thermosetting resin again, and tearing off again; covering another carbon fiber cloth on the thermosetting resin, and then thermally pressing and solidifying the thermosetting resin, the release paper and the support material to form a friction plate structure; wherein, the volume of the thermosetting resin accounts for more than 85 percent of the volume of the support material and the carbon fiber cloth; and the plurality of fiber bundles in the carbon fiber cloth are partially exposed out of the thermosetting resin in the peak area.
As a further improvement of the present invention, the thermosetting resin is an epoxy resin.
As can be seen from the above description, the present invention has the following advantages:
1. compared with the existing asbestos, metal or paper materials, the material provided by the invention has the advantages that the material is harmless to the environment or human body, the noise problem similar to a metal friction plate is not generated in the using process, the wear resistance and the durability are more excellent, and the material is suitable for being used in the field of high-order machinery.
2. According to the invention, through the selection of materials, the manufacturing method and the impregnation rate of the carbon fiber cloth, the support material and the bonding material, excellent self-lubricating, wear-resisting and durable characteristics can be obtained, and the method can be applied to the fields including the automobile field or the food machinery field, wherein the automobile field includes a Torque converter (Torque converter), a gearbox gear or a rear wheel differential used by a vehicle; the gear gasket used in the field of food machinery has a self-lubricating effect, so that lubricating oil is not required to be additionally used when the gear gasket is used in the food machinery, and the risk that a human body eats too much processing additives is reduced.
Drawings
FIG. 1 is a schematic view of a preferred embodiment of the present invention;
FIG. 2 is a cross-sectional view of a preferred embodiment of the present invention;
FIG. 3 is an SEM image of a preferred embodiment of the invention;
FIG. 4a and FIG. 4b are graphs showing the friction force test data of the preferred embodiment of the present invention using polyester as the adhesive;
FIG. 5a and FIG. 5b are graphs showing the friction force test data of the preferred embodiment of the present invention using epoxy resin as the adhesive material;
FIG. 6 is a SEM image of the impregnation rate of the preferred embodiment of the present invention using polyester as the adhesive;
FIG. 7 is an SEM image of the impregnation rate of the preferred embodiment of the present invention using epoxy resin as the adhesive material.
Description of the symbols:
10 friction disc structure 11 carbon fiber cloth
111 fiber bundle 112 crest apex
1111 short fiber 20 adhesive material
30 support material X axial direction
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1 to 3, the friction plate structure 10 of the present invention is formed by stacking two carbon fiber cloths 11, a carbon fiber cloth 11, an adhesive material 20, a support material 30, an adhesive material 20, and a carbon fiber cloth 11 in this order to form the friction plate structure 10 having a thickness of 0.45mm to 1 mm. Each piece of the carbon fiber cloth 11 is formed by interlacing a plurality of fiber bundles 111, and the fiber bundles 111 are twisted by a plurality of short fibers 1111 so that the plurality of short fibers 1111 are partially overlapped and interlaced in an axial direction X of the fiber bundle 11, and the length direction of each short fiber 1111 corresponds to the axial direction X of the fiber bundle 11. Preferably, the plurality of fiber bundles 111 woven in a staggered manner are woven in a staggered manner in the warp and weft directions, as shown in an electron microscope (SEM) observation view of fig. 3.
Since the single carbon fiber cloth 11 is thin, it is mainly used for lubricating and rubbing other mechanical components, and the carbon fiber cloth 11 can be stacked on the supporting member 30 to increase the thickness and strength of the carbon fiber cloth 11. The material of the support member 30 may be Kevlar (Kevlar) woven cloth, glass fiber cloth, carbon fiber cloth, basalt cloth, or a combination of the above cloth materials. When the friction plate structure 10 with three or more layers is formed, the carbon fiber cloth 11 is overlapped on the outermost layer, and the other supporting materials 30 (not limited to only one layer, but also multiple layers are overlapped) are overlapped or coated on the inner layer, so that a sandwich structure is formed.
Furthermore, the bonding material 20 used in the present invention mainly serves to bond the carbon fiber cloth 11 and the supporting material 30, but can also provide the self-lubricating and lubricating effects of the friction plate structure 10 of the present invention, and the bonding material 20 penetrates into the fiber bundles 111 impregnated in the carbon fiber cloth 11 to achieve an impregnation rate of more than 80% (volume ratio), preferably between 85% and 99%, so that at least part of the carbon fiber cloth 11 can be exposed out of the bonding material 20, and the fiber bundles of the carbon fiber cloth 11 exposed out of the bonding material 20 are partially exposed out of the bonding material 20 in the peak 112 area, as shown in fig. 2 and 3, so that the friction plate structure 10 has better wear resistance.
The adhesive 20 may be a thermoplastic resin such as Polycarbonate (PC) or may be a thermosetting resin such as Epoxy resin (Epoxy). In the adhering and bonding step between the carbon fiber cloth 11 and the bonding material 20, the carbon fiber cloth 11 and the support material 30 with a specific thickness are laminated and then thermally bonded by using a hot press at a pressure of 45-250 kg/sq cm and a temperature of ≦ 350 ℃ so that the bonding material 20 is partially impregnated and infiltrated into the fibers of the carbon fiber cloth 11, as shown in fig. 2 and 3, and after the bonding material 20 is thermally cured (e.g., thermally cured and thermally cured), two carbon fiber cloths 11 are bonded and have a certain strength and structural rigidity, thereby reducing the problem of delamination; the specific thickness of the support material 30 is controlled by the thickness and volume percentage of the carbon fiber cloth 11 and the desired impregnation rate, for example, if the impregnation rate of the adhesive material 20 is 85% between the carbon fiber cloths, the adhesive material 20 with the thickness of 85 vt% can be applied to the carbon fiber cloth, and the adhesive material 20 can be impregnated between the fibers of the carbon fiber cloth 11 in a Coating (Coating), spraying (spraying) or Film hot-pressing lamination (Film Stacking) manner, so that the carbon fiber cloth 11 arranged at the outermost layer of the embodiment maintains the exposed state of the short fibers and the discontinuous fibers, and when in use, the support material has better technical effects of self-moistening, wear resistance and durability compared with the prior art.
Although the thermosetting resin is complex to process and manufacture, the thermosetting resin has good physical properties (such as hardness and rigidity) and heat resistance, so that the invention can be applied to the field of higher-order brake pads or friction plates and improves the product value. The thermosetting resin processing method can be, for example, when the adhesive material 20 of the present invention is made of thermosetting Epoxy resin (Epoxy), it is in a high viscosity state at room temperature and is difficult to process directly, so the method of forming a film, which is the same as the thermoplastic resin, is not used, but is replaced by a method of coating the adhesive material on release paper, the method of applying the adhesive material is mainly to form the colloidal thermoplastic resin on the release paper into a film shape, then coating the adhesive material on the carbon fiber cloth 11, tearing the release paper off and laminating the support material 30, repeating the above steps to form a plurality of layers, and then performing hot pressing and curing to obtain the friction plate structure 10 of the present invention, and the method of applying the adhesive material can make the thermosetting resin be impregnated in the carbon fiber cloth 11 and the support material 30 to form a sandwich structure of the friction plate structure 10 of the present invention.
Next, the following is a performance verification that the friction plate structure 10 of the present invention is wear-resistant, self-lubricating, excellent in heat conduction, and capable of fast heat dissipation. Please first refer to table 1, which is a table listing the specifications of the supporting material 30 selected as the test sample according to the present invention, wherein samples a-D of the supporting material 30 are glass fiber cloth purchased from table glass, and sample Kevlar is Kevlar fiber cloth.
TABLE 1
Referring to the following table 2, the specification parameters of the carbon fiber cloth 11 selected for the support material 30 of table 1 are shown in the present invention, and the carbon fiber cloth selected for the present invention is purchased from Yi Cheng science and technology corporation.
TABLE 2
Please refer to table 3, which shows the tensile property test data of the support material 30 and the carbon fiber cloth 11 selected in tables 1 and 2, the friction plate structures 10 made of thermoplastic resin-polyester and thermosetting resin-epoxy resin, and the universal tensile testing machine under the test condition ASTM D638. As can be seen from table 3, the friction plate structure 10 made of thermosetting resin has more excellent mechanical strength than thermoplastic resin.
TABLE 3
Please refer to table 4, fig. 4 a-5 b, which utilize a universal tensile testing machine to test the data related to the dynamic and static friction test under the test condition ASTM D1894. Fig. 4a to 4b are graphs showing friction coefficient test data of the polyester a to D and Kevlar samples according to table 4, fig. 4a is dry friction test data, and fig. 4b is wet friction test data. Fig. 5 a-5 b are graphs of friction coefficient test data for epoxy a-D and Kevlar samples corresponding to table 4, with fig. 5a being dry friction test data and fig. 5b being wet friction test data. The friction plate structure 10 of the present invention preferably has a static and dynamic friction coefficient ratio of preferably 0.8 to 0.98, so that the friction plate structure 10 has the characteristics of high stability, high dynamic and static friction coefficient ratio, large torque transmission, and improved wear resistance.
TABLE 4
Then, as shown in fig. 6 to 7, the friction plate structure manufactured by using the thermoplastic resin-polyester (fig. 6) and the thermosetting resin-epoxy resin (fig. 7) respectively has an impregnation rate of 92 to 94% by using the thermoplastic resin in the invention as shown in fig. 6, and an impregnation rate of more than 85% by using the thermosetting resin as shown in fig. 7.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, which is claimed, and all other equivalent changes and modifications that do not depart from the spirit of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. A friction plate structure is characterized in that the thickness of the friction plate structure is 0.45-1 mm, and the friction plate structure is formed by overlapping carbon fiber cloth, a bonding material, a supporting material, the bonding material and the carbon fiber cloth in sequence, wherein:
the carbon fiber cloth is formed by interweaving a plurality of fiber bundles, the fiber bundles are twisted by a plurality of short fibers to enable the short fibers to form partial overlapping and winding in one axial direction of the fiber bundles, and the length direction of each short fiber corresponds to the axial direction of the fiber bundles;
the adhesive material is locally penetrated into the fiber bundles of the carbon fiber cloth to reach the impregnation rate of more than 80 percent, and the fiber bundles of the carbon fiber cloth are locally exposed out of the adhesive material in the peak area of the wave crest; and
the radial tensile strength of the friction plate structure is 90-177 MPa, the axial tensile strength is 60-136 MPa, and the dynamic-static friction ratio is 0.8-0.98.
2. A friction plate structure as described in claim 1 wherein said binder comprises a thermoplastic resin or a thermosetting resin.
3. A friction plate structure as described in claim 2 wherein said thermoplastic resin is polycarbonate and said thermosetting resin is epoxy.
4. A friction plate structure as claimed in claim 1 wherein said support material is carbon cloth, glass cloth, kevlar cloth or basalt cloth.
5. A method for manufacturing a friction plate structure, comprising the steps of:
coating colloidal thermosetting resin on the surface of release paper to form a film shape;
coating the thermosetting resin on the release paper on a carbon fiber cloth and then tearing off the release paper;
then covering a supporting material on the thermosetting resin, covering another piece of release paper containing the thermosetting resin again, and tearing off again;
covering another carbon fiber cloth on the thermosetting resin, and then thermally pressing and solidifying the thermosetting resin, the release paper and the support material to form a friction plate structure; wherein,
the volume of the thermosetting resin accounts for more than 85% of the volume of the support material and the carbon fiber cloth; and
the plurality of fiber bundles in the carbon fiber cloth are partially exposed to the thermosetting resin in the peak area.
6. A method of manufacturing a friction plate structure as described in claim 5 wherein said thermosetting resin is an epoxy resin.
CN201810505926.4A 2018-05-24 2018-05-24 Friction plate structure and its manufacturing method Pending CN110529531A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111219432A (en) * 2020-01-13 2020-06-02 广德固特力制动材料有限公司 Friction plate of speed reducer of railway switch machine and production method thereof
CN114060440A (en) * 2020-07-30 2022-02-18 广东新志密封技术有限公司 Wear-resistant composite material, friction plate, wind power yaw brake block and wind power yaw brake system

Citations (6)

* Cited by examiner, † Cited by third party
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