CN114110061B - Wear-resistant noise-reducing bionic double-layer ceramic brake pad and preparation method thereof - Google Patents
Wear-resistant noise-reducing bionic double-layer ceramic brake pad and preparation method thereof Download PDFInfo
- Publication number
- CN114110061B CN114110061B CN202111298212.9A CN202111298212A CN114110061B CN 114110061 B CN114110061 B CN 114110061B CN 202111298212 A CN202111298212 A CN 202111298212A CN 114110061 B CN114110061 B CN 114110061B
- Authority
- CN
- China
- Prior art keywords
- wear
- layer
- brake pad
- resistant
- contact layer
- 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.)
- Active
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 79
- 239000011664 nicotinic acid Substances 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 72
- 239000002994 raw material Substances 0.000 claims abstract description 64
- 239000000758 substrate Substances 0.000 claims abstract description 54
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 26
- 238000002156 mixing Methods 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 17
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 14
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 235000021388 linseed oil Nutrition 0.000 claims abstract description 13
- 239000000944 linseed oil Substances 0.000 claims abstract description 13
- YPMOSINXXHVZIL-UHFFFAOYSA-N sulfanylideneantimony Chemical compound [Sb]=S YPMOSINXXHVZIL-UHFFFAOYSA-N 0.000 claims abstract description 13
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims abstract description 7
- 229910052845 zircon Inorganic materials 0.000 claims abstract description 7
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims description 47
- 238000010438 heat treatment Methods 0.000 claims description 46
- 239000013078 crystal Substances 0.000 claims description 32
- 239000000203 mixture Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 28
- 238000011049 filling Methods 0.000 claims description 25
- 238000002844 melting Methods 0.000 claims description 24
- 230000008018 melting Effects 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 18
- 238000000227 grinding Methods 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 18
- 239000000835 fiber Substances 0.000 claims description 17
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 8
- 229920006231 aramid fiber Polymers 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000007731 hot pressing Methods 0.000 claims description 8
- 239000002557 mineral fiber Substances 0.000 claims description 8
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 6
- 229920000459 Nitrile rubber Polymers 0.000 claims description 6
- 239000005083 Zinc sulfide Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000007590 electrostatic spraying Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 6
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000002131 composite material Substances 0.000 abstract description 6
- 230000001050 lubricating effect Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 7
- 239000002585 base Substances 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 235000004431 Linum usitatissimum Nutrition 0.000 description 2
- 240000006240 Linum usitatissimum Species 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 235000004426 flaxseed Nutrition 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- 239000002699 waste material Substances 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—Compositions of linings; Methods of manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- 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—Compositions of linings; Methods of manufacturing
- F16D69/027—Compositions based on metals or inorganic oxides
-
- 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—Compositions 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/247—Removing material: carving, cleaning, grinding, hobbing, honing, lapping, polishing, milling, shaving, skiving, turning the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
-
- 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
- F16D2069/002—Combination of different friction 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
- F16D2069/004—Profiled friction surfaces, e.g. grooves, dimples
-
- 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
-
- 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
- F16D2200/0026—Non-ferro
-
- 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
- F16D2200/0026—Non-ferro
- F16D2200/003—Light metals, e.g. aluminium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0034—Materials; Production methods therefor non-metallic
- F16D2200/0039—Ceramics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0034—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
Abstract
The invention discloses a wear-resistant and noise-reducing bionic double-layer wear-resistant ceramic brake pad, which comprises a substrate layer and a contact layer positioned above the substrate layer, wherein the contact layer is provided with triangular grooves which are indirectly arranged, and wear-resistant adjusting materials are filled in the triangular grooves; the wear-resistant adjusting material is prepared by mixing the following raw materials in percentage by mass: 8-15% of zircon powder, 2-3% of graphene oxide, 0.5-5% of aluminum powder, 12-20% of tin powder, 2-9% of silver powder, 5-8% of molybdenum disulfide, 8-13% of antimony sulfide, 10-19% of linseed oil modified phenolic resin and 25-39% of calcium carbonate. The bionic double-layer composite structure ceramic brake pad has the advantages that the fluctuation range of the friction coefficient at high temperature is small, the friction performance is stable, the braking is stable, the comfort is high, the material wear rate is low, and the service life of the brake pad is greatly prolonged; the friction interface layer with the bionic double-layer composite structure can realize controllable preparation and has excellent lubricating performance and wear resistance.
Description
Technical Field
The invention relates to a ceramic brake pad with a bionic double-layer structure and a preparation method thereof, belonging to the field of automobile parts.
Background
With the rapid development of new energy automobiles, the automobiles are developed towards green manufacture, energy reduction and emission reduction, and the severe demands are put forward on automobile braking systems. The brake pad is used as one of the most critical parts of a braking system, and mainly achieves the aim of reducing the speed of a vehicle by bearing braking force through a friction base material to generate a friction effect. For a long time, the automobile brake pad is mostly a semi-metal brake pad, and a large amount of heavy metal substances are contained in the semi-metal brake pad, so that environmental-friendly substances can be released in the braking process, which is contrary to the ideal environment protection of China; in addition, the semi-metal brake pad has unstable braking performance, high material hardness, low heat conduction capability and unstable friction coefficient, and the braking noise generated in the braking process is overlarge, so that the comfort is greatly reduced. The new energy automobile brake pad needs to have better stability and improves the wear resistance of the brake pad as much as possible.
Disclosure of Invention
The invention aims to solve the technical problems of providing a wear-resistant and noise-reducing bionic double-layer ceramic brake pad aiming at the defects of the prior art, which is mainly formed by adding reinforcing phase graphene and lubricating phase multidirectional composite crystal particles with different contents into two layers of the ceramic brake pad, filling wear-resistant adjusting materials into triangular grooves on the surface, performing the processes of hot-press molding, triangular groove forming, heat treatment of the brake pad and the like. The bionic double-layer ceramic brake pad prepared by the invention has excellent wear-resisting and noise-reducing performances, and the preparation process is simple and easy to operate, and can meet the design and preparation principles of energy conservation, emission reduction and environmental protection.
The invention adopts the technical proposal for solving the problems that:
a wear-resistant and noise-reducing bionic double-layer wear-resistant ceramic brake pad comprises a substrate layer and a contact layer positioned above the substrate layer, and is characterized in that the contact layer is provided with triangular grooves which are indirectly arranged, and wear-resistant adjusting materials are filled in the triangular grooves; the wear-resistant material is prepared by mixing the following raw materials in percentage by mass: 8-15% of zircon powder, 2-3% of graphene oxide, 0.5-5% of aluminum powder, 12-20% of tin powder, 2-9% of silver powder, 5-8% of molybdenum disulfide, 8-13% of antimony sulfide, 10-19% of linseed oil modified phenolic resin and 25-39% of calcium carbonate.
According to the scheme, the extending direction of the triangular grooves is the radial direction, the groove depth h of the triangular grooves is 3.75-5.25mm, the groove width w is 1.25-2.15mm, and the interval radian gamma between two adjacent grooves is pi/60-pi/30; the ratio of the volume of the wear-resistant adjusting material to the total volume of the contact layer is 25-36%.
According to the scheme, the total thickness of the substrate layer and the contact layer is 100%, the thickness of the contact layer is 25-35%, and the thickness of the substrate layer is 65-75%.
According to the scheme, the base components of the substrate layer and the contact layer comprise the following components in percentage by mass: 20-30% of ceramic fiber, 12-15% of linseed oil modified phenolic resin, 5-8% of aramid fiber, 8-13% of mineral fiber, 1-2% of copper fiber, 16-22% of inorganic adhesive, 7-10% of nitrile rubber powder, 1-3% of zinc sulfide and 20-25% of potassium titanate whisker; the substrate layer and the contact layer both comprise graphene and multidirectional combined crystal particles except for basic components, the content of the graphene and the multidirectional combined crystal particles in the contact layer is 2-3% and 8-11% of the total mass of the basic components respectively, and the content of the graphene and the multidirectional combined crystal particles in the substrate layer is 1-2% and 4-6% of the total mass of the basic components respectively.
Further, the preparation process of the multidirectional combined crystal particles comprises the following steps: uniformly mixing, by mass, 10-13% of aluminum silicate hollow spheres, 7-15% of calcium carbonate whiskers, 15-25% of potassium titanate whiskers, 10-20% of antimony sulfide, 16-25% of boron powder and 15-25% of molybdenum powder, wherein the particle size of the raw material powder is 65-75 mu m, melting the raw material by using a melting furnace, and preserving heat for 2-3 hours at 500-600 ℃ at the temperature of the melting furnace, wherein the shielding gas is argon; then dispersing the particles by a roller extruder, wherein the surface temperature of the roller is 70-80 ℃ and the time is 15-25 minutes, and the multidirectional combined crystal particles are obtained, and the particle size range is 35-45 mu m.
The invention relates to a preparation method of a wear-resistant noise-reducing bionic double-layer ceramic brake pad, which comprises the following process steps:
s1) preforming: respectively and uniformly mixing the raw materials of the substrate layer and the contact layer and the raw materials of the wear-resistant adjusting material to obtain a raw material mixture of the substrate layer, a raw material mixture of the contact layer and a raw material mixture of the wear-resistant adjusting material;
s2) hot press molding: sequentially filling the raw material mixture of the matrix layer and the raw material mixture of the contact layer into a mold, and respectively applying 5-10MPa for preforming; placing the obtained preformed blank in a heat treatment furnace, raising the temperature to 550-650 ℃ at 10-15 ℃/min under the protection of nitrogen, setting the hot pressing pressure to 120-180 MPa, cooling to room temperature and demoulding to obtain a double-layer ceramic brake block blank;
s3) triangular groove forming and filling: cutting ceramic brake blank with precise cutter to form triangular groove in contact layer, filling wear-resisting regulating material into the triangular groove, filling, placing into hot pressing mold under 8-12MPa pressure, melting in high temperature vacuum furnace at 250-300 deg.C for 15-20 min, and vacuum degree of 0.8-1.2X10 -3 Pa, cooling along with the furnace to obtain a bionic double-layer ceramic brake block blank filled with the wear-resistant adjusting material;
s4) heat treatment of the brake pad, wherein the bionic double-layer ceramic brake pad blank obtained in the S3) is subjected to heat treatment according to the following process: firstly heating to 137-150 ℃ and preserving heat for 2.5-4 hours, then heating to 165-180 ℃ and preserving heat for 6-7.5 hours, then heating to 195-205 ℃ and preserving heat for 1.5-1.8 hours, finally cooling to room temperature, and then carrying out aftertreatment to obtain the wear-resistant noise-reducing bionic double-layer ceramic brake pad.
According to the scheme, S2) hot press molding is carried out in sections, the heating temperature is from 25 ℃ to 30 ℃ to 250 ℃ to 300 ℃, the heat preservation is carried out for 5 minutes to 10 minutes, the heating temperature is further heated to 550 ℃ to 650 ℃, the heat preservation is carried out for 5 minutes to 10 minutes, and the heating pressure maintaining is 80MPa to 120MPa.
According to the scheme, the post-treatment process in the step S3) is as follows: the automatic grinding machine is used for grinding, slotting and chamfering the brake pad, when the brake pad passes through the rear section of the grinding machine, corresponding equipment is adopted for degaussing and surface cleaning treatment, and an electrostatic spraying process is adopted for spraying the brake pad.
Compared with the prior art, the invention has the beneficial effects that:
1. the bionic double-layer composite structure ceramic brake pad has the advantages that the fluctuation range of the friction coefficient at high temperature is small, the friction performance is stable, the braking is stable, the comfort is high, the material wear rate is low, and the service life of the brake pad is greatly prolonged; the friction interface layer with the bionic double-layer composite structure can realize controllable preparation, has excellent lubricating performance and wear resistance, has low energy consumption, and is suitable for large-scale batch production.
2. According to the bionic double-layer ceramic brake pad, ceramic brake pad material powder, friction adjusting material multidirectional combined crystal particles and wear-resistant adjusting materials are used as raw materials, the contact characteristic of the brake pad in the braking process is improved through the synergistic effect of multiple materials and multiple structures, the tribological performance, the noise reduction and vibration reduction performance are improved to a great extent, and the comfort of the braking process is improved.
3. In the research on the preparation of the ceramic brake pad, the powder of the raw materials which are uniformly mixed is adopted, the performance of the brake pad is uniformly distributed, but the thickness of the brake pad is only 1/3, so that the uniformly distributed brake pad material can cause the waste of the raw materials. The bionic double-layer ceramic brake pad has high utilization rate, and can meet the material utilization rate and friction performance compared with brake pad materials which are uniformly distributed. The contact layer and the matrix layer contain reinforcing phases and lubricating phases with different contents, so that the contact layer can realize good wear resistance and friction regulation, and the components of the matrix layer are stable, so that the toughness of the matrix is ensured. Meanwhile, the bionic triangle groove is filled with the wear-resistant adjusting material, so that the formation of a friction layer can be further realized, and friction noise can be generated by friction pair time-varying contact characteristics and friction layer formation.
4. The bionic double-layer ceramic brake pad realizes high utilization rate and stability of braking performance in the effective service life, reduces abrasion loss and improves driving comfort; the ceramic fiber, the aramid fiber and the mineral fiber used in the invention have high biodegradability, can not cause health problems when being absorbed by human bodies, and the copper fiber only accounts for 1-2%, can not cause excessive pollution to the environment, and belongs to an environment-friendly ceramic brake pad, and the ceramic brake pad has the characteristics of environmental protection, high performance and the like.
In summary, the invention utilizes the synergistic effect of the bionic double-layer structure and the wear-resistant adjusting effect of the ceramic brake pad to adjust the friction performance of the brake pad, thereby meeting the reflective effect of the friction capability and the generation of the friction layer, and further ensuring the stability of the friction coefficient of the brake pad; meanwhile, friction noise is also a problem that is difficult to eliminate in the braking process, the contact characteristic of the friction pair is changed in the braking process due to the unique structure of the bionic double-layer structure, high-frequency noise cannot be generated, and the friction layer generated by the wear-resisting adjusting effect can further suppress the generation of noise, so that the stability and smoothness of braking are realized.
Drawings
FIG. 1 is a flow chart of a preparation method of the invention.
Fig. 2 is a scanning electron microscope micrograph of a bionic surface of the bionic double-layer ceramic brake pad according to the invention.
FIG. 3 is a scanning electron micrograph of wear marks after wear testing of a ceramic brake pad according to example 1 of the present invention.
Fig. 4 is a bar graph of Equivalent Sound Pressure Level (ESPL) of the bionic double-layer ceramic brake pad materials prepared in examples 1, 2, 3, and 4 of the present invention.
FIG. 5 is a schematic structural diagram of a bionic double-layer wear-resistant ceramic brake pad of the invention, 1-matrix layer, 2-contact layer, 3-triangular groove (filled with wear-resistant adjusting material).
Detailed Description
The present invention will be further described with reference to the drawings and examples, but the content of the present invention is not limited to the following examples.
In the examples which follow, linseed oil-modified phenolic resins are described in the reference [ Yang Jing. Boron, synthesis of linseed oil-modified phenolic resins and their use in friction materials [ D ]. Jiangsu university.2016 ].
In the following examples, the inorganic binder is a high temperature resistant binder (Yixing Ming Hao Tech Co., ltd.) consisting essentially of 35-40% by weight of mullite, 30-35% by weight of alumina, 5-10% by weight of silica, and 5-10% by weight of alkali silicate. Ceramic fiber (aluminum silicate ceramic fiber, length 1-3mm, jiangxi Shuobang New Material technology Co., ltd.), aramid fiber (length 1-3mm, jiangxi Shuobang New Material technology Co., ltd.), mineral fiber (main ingredient SiO 2 40-60wt％、Al 2 O 3 15-25wt％、Fe 2 O 3 3-7wt%, mgO and CaO 25-30wt%, length 1-3.5mm, jiangxi Shuobang New Material technology Co., ltd.), copper fiber (length 1-3mm, jiangxi Shuobang New Material technology Co., ltd.), aluminum silicate hollow sphere (particle size 40-80 mesh, jiangxi Shuobang New Material technology Co., ltd.).
In the following examples, the diameter of the potassium titanate whisker is 0.2-0.5 μm, and the length is 1-50 μm; the diameter of the calcium carbonate whisker is 1-4 mu m, and the length is 10-200 mu m.
Example 1
A wear-resisting and noise-reducing bionic double-layer wear-resisting ceramic brake pad comprises a substrate layer and a contact layer positioned above the substrate layer, wherein the contact layer is provided with triangular grooves which are indirectly arranged, and the triangular grooves are filled with wear-resisting adjusting materials to enable the surface of the contact layer to be flat (as shown in figure 5); the total thickness of the substrate layer and the contact layer is calculated as 100%, the thickness of the contact layer is 30%, and the thickness of the substrate layer is 70%; the extending direction of the triangular grooves is a radial direction, the groove depth h of the triangular grooves is 5mm, the groove width w is 2mm, and the interval radian gamma between two adjacent grooves is pi/45; the volume of the wear-resistant adjusting material accounts for 30% of the total volume of the contact layer; the wear-resistant material is prepared by mixing the following raw materials in percentage by mass: the wear-resistant adjusting material filling the triangular grooves is formed by mixing the following raw materials: 10% of zircon powder, 2% of graphene oxide, 3% of aluminum powder, 17% of tin powder, 7% of silver powder, 6% of molybdenum disulfide, 9% of antimony sulfide, 19% of linseed oil modified phenolic resin and 27% of calcium carbonate.
The base components of the substrate layer and the contact layer are as follows by mass percent: 25% of ceramic fiber, 13% of linseed oil modified phenolic resin, 7% of aramid fiber, 8% of mineral fiber, 1% of copper fiber, 16% of inorganic adhesive, 8% of nitrile rubber powder, 2% of zinc sulfide and 20% of potassium titanate whisker; the substrate layer and the contact layer both comprise graphene and multidirectional combined crystal particles except for basic components, the content of the graphene and the multidirectional combined crystal particles in the contact layer is 2% and 9% of the total mass of the basic components respectively, and the content of the graphene and the multidirectional combined crystal particles in the substrate layer is 1% and 4% of the total mass of the basic components respectively.
The preparation process of the multidirectional combined crystal particles comprises the following steps: uniformly mixing 10% of aluminum silicate hollow spheres, 15% of calcium carbonate whiskers, 15% of potassium titanate whiskers, 10% of antimony sulfide, 25% of boron powder and 25% of molybdenum powder in percentage by mass, melting the raw materials by a melting furnace, wherein the melting temperature is 500 ℃, and preserving heat for 3 hours, and the protective gas is argon; the particles were dispersed by a roll extruder at a roll surface temperature of 75℃for 15 minutes to obtain multidirectional combined crystal particles having a particle diameter of 40. Mu.m.
The preparation method of the wear-resistant noise-reducing bionic double-layer ceramic brake pad comprises the following process steps:
s1) preforming: respectively and uniformly mixing the raw materials of the substrate layer and the contact layer and the raw materials of the wear-resistant adjusting material to obtain a raw material mixture of the substrate layer, a raw material mixture of the contact layer and a raw material mixture of the wear-resistant adjusting material;
s2) hot press molding: sequentially filling the raw material mixture of the matrix layer and the raw material mixture of the contact layer into a mold, and respectively applying 5MPa to perform preforming; placing the obtained preformed blank in a heat treatment furnace, carrying out hot press forming in sections under the protection of nitrogen, keeping the temperature from room temperature to 250 ℃, keeping the temperature for 5 minutes, heating to 550 ℃ again, keeping the temperature for 5 minutes, keeping the pressure at 80MPa all the time in the heating process, cooling to room temperature and demoulding to obtain a bionic double-layer ceramic brake block blank;
s3) triangular groove forming and filling: cutting the bionic double-layer ceramic brake block blank obtained in the step S2) by a precise cutter, obtaining triangular grooves on a contact layer, filling a wear-resistant adjusting material, placing the filled sample into a hot-pressing die under the pressure of 10MPa, melting in a high-temperature vacuum furnace, keeping the temperature at 250 ℃ for 20 minutes and the vacuum degree at 1.0x10 - 3 Pa, cooling along with the furnace to obtain a bionic double-layer ceramic brake block blank filled with the wear-resistant adjusting material;
s4) heat treatment of the brake pad: heating the blank of the bionic double-layer ceramic brake block obtained in the step S3) to 150 ℃ for 4 hours, heating to 180 ℃ for 7.5 hours, heating to 205 ℃ for 1.8 hours, cooling to room temperature, and performing aftertreatment to obtain the wear-resistant and noise-reducing bionic double-layer ceramic brake block; the automatic grinding machine is used for grinding, slotting and chamfering the brake pad, when the brake pad passes through the rear section of the grinding machine, corresponding equipment is adopted for degaussing and surface cleaning treatment, and an electrostatic spraying process is adopted for spraying the brake pad.
Example 2
A wear-resistant and noise-reducing bionic double-layer wear-resistant ceramic brake pad comprises a substrate layer and a contact layer positioned above the substrate layer, wherein the contact layer is provided with triangular grooves which are indirectly arranged, and the triangular grooves are filled with wear-resistant adjusting materials to enable the surface of the contact layer to be smooth; the total thickness of the substrate layer and the contact layer is calculated as 100%, the thickness of the contact layer is 35%, and the thickness of the substrate layer is 65%; the extending direction of the triangular grooves is a radial direction, the groove depth h of the triangular grooves is 4mm, the groove width w is 2mm, and the interval radian gamma between two adjacent grooves is pi/60; the ratio rho of the volume of the wear-resistant adjusting material to the total volume of the contact layer is 35%.
The wear-resistant material is prepared by mixing the following raw materials in percentage by mass: the wear-resistant adjusting material filling the triangular grooves is formed by mixing the following raw materials: 8% of zircon powder, 3% of graphene oxide, 5% of aluminum powder, 20% of tin powder, 8% of silver powder, 6% of molybdenum disulfide, 10% of antimony sulfide, 15% of linseed oil modified phenolic resin and 25% of calcium carbonate.
The base components of the substrate layer and the contact layer are as follows by mass percent: 26% of ceramic fiber, 12% of linseed oil modified phenolic resin, 5% of aramid fiber, 10% of mineral fiber, 1% of copper fiber, 16% of inorganic adhesive, 8% of nitrile rubber powder, 2% of zinc sulfide and 20% of potassium titanate whisker; the substrate layer and the contact layer both comprise graphene and multidirectional combined crystal particles except for basic components, the content of the graphene and the multidirectional combined crystal particles in the contact layer is 3% and 8% of the total mass of the basic components respectively, and the content of the graphene and the multidirectional combined crystal particles in the substrate layer is 1% and 6% of the total mass of the basic components respectively.
The preparation process of the multidirectional combined crystal particles comprises the following steps: uniformly mixing 12% of aluminum silicate hollow spheres, 15% of calcium carbonate whiskers, 20% of potassium titanate whiskers, 10% of antimony sulfide, 18% of boron powder and 25% of molybdenum powder in percentage by mass, melting the raw materials by a melting furnace, wherein the melting temperature is 550 ℃, and preserving heat for 2 hours, and the protective gas is argon; the multi-directional combined crystal particles with the particle size of 45 mu m are obtained by dispersing particles in a roller extruder, wherein the surface temperature of the roller is 80 ℃ and the time is 20 minutes.
The preparation method of the wear-resistant noise-reducing bionic double-layer ceramic brake pad comprises the following process steps:
s1) preforming: respectively and uniformly mixing the raw materials of the substrate layer and the contact layer and the raw materials of the wear-resistant adjusting material to obtain a raw material mixture of the substrate layer, a raw material mixture of the contact layer and a raw material mixture of the wear-resistant adjusting material;
s2) hot press molding: sequentially filling the raw material mixture of the matrix layer and the raw material mixture of the contact layer into a mold, and respectively applying 5MPa to perform preforming; placing the obtained preformed blank in a heat treatment furnace, carrying out hot press forming in sections under the protection of nitrogen, keeping the temperature from 28 ℃ to 300 ℃, keeping the temperature for 10 minutes, heating to 600 ℃ again, keeping the temperature for 5 minutes, keeping the pressure in the heating process at 100MPa all the time, cooling to room temperature and demoulding to obtain a bionic double-layer ceramic brake block blank; the method comprises the steps of carrying out a first treatment on the surface of the
S3) triangular groove forming and filling: cutting the bionic double-layer ceramic brake block blank obtained in the step S2) by a precise cutter, obtaining triangular grooves on a contact layer, filling a wear-resistant adjusting material, placing the filled sample into a hot-pressing die under the pressure of 12MPa, melting in a high-temperature vacuum furnace at the temperature of 280 ℃, keeping the temperature for 30 minutes and the vacuum degree of 1.0x10 - 3 Pa, cooling along with the furnace to obtain a bionic double-layer ceramic brake block blank filled with the wear-resistant adjusting material;
s4) heat treatment of the brake pad: heating the blank of the bionic double-layer ceramic brake block obtained in the step S3) to 150 ℃ for 4 hours, heating to 180 ℃ for 7.5 hours, heating to 205 ℃ for 1.8 hours, cooling to room temperature, and performing aftertreatment to obtain the wear-resistant and noise-reducing bionic double-layer ceramic brake block; the automatic grinding machine is used for grinding, slotting and chamfering the brake pad, when the brake pad passes through the rear section of the grinding machine, corresponding equipment is adopted for degaussing and surface cleaning treatment, and an electrostatic spraying process is adopted for spraying the brake pad.
Example 3
A wear-resistant and noise-reducing bionic double-layer wear-resistant ceramic brake pad comprises a substrate layer and a contact layer positioned above the substrate layer, wherein the contact layer is provided with triangular grooves which are indirectly arranged, and the triangular grooves are filled with wear-resistant adjusting materials to enable the surface of the contact layer to be smooth; the total thickness of the substrate layer and the contact layer is calculated as 100%, the thickness of the contact layer is 25%, and the thickness of the substrate layer is 75%; the extending direction of the triangular grooves is a radial direction, the groove depth h of the triangular grooves is 4mm, the groove width w is 1.5mm, and the interval radian gamma between two adjacent grooves is pi/30; the ratio rho of the volume of the wear-resistant adjusting material to the total volume of the contact layer is 35%.
The wear-resistant material is prepared by mixing the following raw materials in percentage by mass: the wear-resistant adjusting material filling the triangular grooves is formed by mixing the following raw materials: 13% of zircon powder, 2% of graphene oxide, 1% of aluminum powder, 12% of tin powder, 5% of silver powder, 8% of molybdenum disulfide, 13% of antimony sulfide, 15% of linseed oil modified phenolic resin and 31% of calcium carbonate.
The base components of the substrate layer and the contact layer are as follows by mass percent: 20% of ceramic fiber, 12% of linseed oil modified phenolic resin, 8% of aramid fiber, 9% of mineral fiber, 2% of copper fiber, 16% of inorganic adhesive, 10% of nitrile rubber powder, 3% of zinc sulfide and 20% of potassium titanate whisker; the substrate layer and the contact layer both comprise graphene and multidirectional combined crystal particles except for basic components, the content of the graphene and the multidirectional combined crystal particles in the contact layer is 3% and 9% of the total mass of the basic components respectively, and the content of the graphene and the multidirectional combined crystal particles in the substrate layer is 2% and 4% of the total mass of the basic components respectively.
The preparation process of the multidirectional combined crystal particles comprises the following steps: uniformly mixing 13% of aluminum silicate hollow spheres, 12% of calcium carbonate whiskers, 24% of potassium titanate whiskers, 10% of antimony sulfide, 16% of boron powder and 25% of molybdenum powder in percentage by mass, melting the raw materials by a melting furnace, wherein the melting temperature is 600 ℃, and the temperature is kept for 2.5 hours, and the shielding gas is argon; the multi-directional combined crystal particles with the particle size of 35 mu m are obtained by dispersing the particles in a roller extruder, wherein the surface temperature of the roller is 70 ℃ and the time is 20 minutes.
The preparation method of the wear-resistant noise-reducing bionic double-layer ceramic brake pad comprises the following process steps:
s1) preforming: respectively and uniformly mixing the raw materials of the substrate layer and the contact layer and the raw materials of the wear-resistant adjusting material to obtain a raw material mixture of the substrate layer, a raw material mixture of the contact layer and a raw material mixture of the wear-resistant adjusting material;
s2) hot press molding: sequentially filling the raw material mixture of the matrix layer and the raw material mixture of the contact layer into a mold, and respectively applying 5MPa to perform preforming; placing the obtained preformed blank in a heat treatment furnace, carrying out hot press forming in sections under the protection of nitrogen, keeping the temperature from 26 ℃ to 300 ℃, keeping the temperature for 8 minutes, heating to 600 ℃, keeping the temperature for 10 minutes, keeping the pressure at 120MPa all the time in the heating process, cooling to room temperature and demoulding to obtain a bionic double-layer ceramic brake block blank;
s3) triangular groove forming and filling: cutting the bionic double-layer ceramic brake block blank obtained in the step S2) by a precise cutter, obtaining triangular grooves on a contact layer, filling a wear-resistant adjusting material, placing the filled sample into a hot-pressing die under the pressure of 10MPa, melting in a high-temperature vacuum furnace, wherein the temperature is 300 ℃, the heat preservation time is 15 minutes, and the vacuum degree is 1.0x10 - 3 Pa, cooling along with the furnace to obtain a bionic double-layer ceramic brake block blank filled with the wear-resistant adjusting material;
s4) heat treatment of the brake pad: heating the blank of the bionic double-layer ceramic brake block obtained in the step S3) to 140 ℃ for 3.5 hours, heating to 170 ℃ for 7 hours, heating to 200 ℃ for 1.6 hours, cooling to room temperature, and performing aftertreatment to obtain the wear-resistant and noise-reducing bionic double-layer ceramic brake block; the automatic grinding machine is used for grinding, slotting and chamfering the brake pad, when the brake pad passes through the rear section of the grinding machine, corresponding equipment is adopted for degaussing and surface cleaning treatment, and an electrostatic spraying process is adopted for spraying the brake pad.
Example 4
A wear-resistant and noise-reducing bionic double-layer wear-resistant ceramic brake pad comprises a substrate layer and a contact layer positioned above the substrate layer, wherein the contact layer is provided with triangular grooves which are indirectly arranged, and the triangular grooves are filled with wear-resistant adjusting materials to enable the surface of the contact layer to be smooth; the total thickness of the substrate layer and the contact layer is calculated as 100%, the thickness of the contact layer is 28%, and the thickness of the substrate layer is 72%; the extending direction of the triangular grooves is a radial direction, the groove depth h of the triangular grooves is 5mm, the groove width w is 1.2mm, and the interval radian gamma between two adjacent grooves is pi/30; the ratio rho of the volume of the wear-resistant adjusting material to the total volume of the contact layer is 28%.
The wear-resistant material is prepared by mixing the following raw materials in percentage by mass: the wear-resistant adjusting material filling the triangular grooves is formed by mixing the following raw materials: 8% of zircon powder, 2% of graphene oxide, 4% of aluminum powder, 16% of tin powder, 5% of silver powder, 8% of molybdenum disulfide, 10% of antimony sulfide, 10% of linseed oil modified phenolic resin and 37% of calcium carbonate.
The base components of the substrate layer and the contact layer are as follows by mass percent: 30% of ceramic fiber, 12% of linseed oil modified phenolic resin, 5% of aramid fiber, 8% of mineral fiber, 1% of copper fiber, 16% of inorganic adhesive, 7% of nitrile rubber powder, 1% of zinc sulfide and 20% of potassium titanate whisker; the substrate layer and the contact layer both comprise graphene and multidirectional combined crystal particles except for basic components, the content of the graphene and the multidirectional combined crystal particles in the contact layer is 1% and 11% of the total mass of the basic components respectively, and the content of the graphene and the multidirectional combined crystal particles in the substrate layer is 1% and 6% of the total mass of the basic components respectively.
The preparation process of the multidirectional combined crystal particles comprises the following steps: uniformly mixing 10% of aluminum silicate hollow spheres, 15% of calcium carbonate whiskers, 20% of potassium titanate whiskers, 10% of antimony sulfide, 20% of boron powder and 25% of molybdenum powder in percentage by mass, melting the raw materials by a melting furnace, wherein the melting temperature is 500 ℃, and preserving heat for 3 hours, and the protective gas is argon; the particles were dispersed by a roll extruder at a roll surface temperature of 75℃for 15 minutes to obtain multidirectional combined crystal particles having a particle diameter of 40. Mu.m.
The preparation method of the wear-resistant noise-reducing bionic double-layer ceramic brake pad comprises the following process steps:
s1) preforming: respectively and uniformly mixing the raw materials of the substrate layer and the contact layer and the raw materials of the wear-resistant adjusting material to obtain a raw material mixture of the substrate layer, a raw material mixture of the contact layer and a raw material mixture of the wear-resistant adjusting material;
s2) hot press molding: sequentially filling the raw material mixture of the matrix layer and the raw material mixture of the contact layer into a mold, and respectively applying 5MPa to perform preforming; placing the obtained preformed blank in a heat treatment furnace, carrying out hot press forming in sections under the protection of nitrogen, keeping the temperature from 25 ℃ to 300 ℃, keeping the temperature for 10 minutes, then heating to 650 ℃, keeping the temperature for 10 minutes, keeping the pressure in the heating process at 80MPa all the time, cooling to room temperature and demoulding to obtain a bionic double-layer ceramic brake block blank;
s3) triangular groove forming and filling: cutting the bionic double-layer ceramic brake block blank obtained in the step S2) by a precise cutter, obtaining triangular grooves on a contact layer, filling a wear-resistant adjusting material, placing the filled sample into a hot-pressing die under the pressure of 10MPa, melting in a high-temperature vacuum furnace, wherein the temperature is 300 ℃, the heat preservation time is 20 minutes, and the vacuum degree is 1.0x10 - 3 Pa, cooling along with the furnace to obtain a bionic double-layer ceramic brake block blank filled with the wear-resistant adjusting material;
s4) heat treatment of the brake pad: heating the blank of the bionic double-layer ceramic brake block obtained in the step S3) to 150 ℃ for 4 hours, heating to 180 ℃ for 7.5 hours, heating to 205 ℃ for 1.8 hours, cooling to room temperature, and performing aftertreatment to obtain the wear-resistant and noise-reducing bionic double-layer ceramic brake block; the automatic grinding machine is used for grinding, slotting and chamfering the brake pad, when the brake pad passes through the rear section of the grinding machine, corresponding equipment is adopted for degaussing and surface cleaning treatment, and an electrostatic spraying process is adopted for spraying the brake pad.
Performance testing
The hardness of the material is measured by adopting an HVS-1000 type digital display Vickers hardness tester according to GB/T4340.1-2009, and the average hardness of the double-layer composite structure ceramic brake pad material prepared by the embodiment is 7.12GPa, and the relative density is 99.4%.
For the friction and wear test of the above embodiment, a disc-block contact mode is adopted in a high-temperature friction experiment machine, the material of the mating part is gray cast iron, the size of the sample is 30mm multiplied by 8mm, the test condition is 1MPa as a test load point, and the test temperature is as follows: 100 ℃,150 ℃,200 ℃,250 ℃,300 ℃ and 350 ℃ and the rotating speed of the disc is 500r/min, 5 groups of experiments are adopted, each group of experiments is repeatedly tested for 3 times, and the average friction coefficient and the wear rate are obtained.
Two main standards of GB 3096-2008 and GB 22337-2008 are adopted in noise standards; the ambient noise detection measures 3.5m above ground by 1.2m, and each sample is tested 5 times and averaged.
Table 1 shows the friction coefficient and wear rate of the bionic double-layer ceramic brake pad materials prepared in examples 1, 2, 3 and 4 of the present invention.
TABLE 1
According to the performance test, the ceramic brake pad of the invention has stable friction coefficient (average value is 0.396-0.406, fluctuation range is smaller, thermal stability) and low wear rate (average value is 0.147-0.208 multiplied by 10) - 7 cm 3 ·N -1 ·m -1 ) According to the automobile brake lining GB5763-2008, the friction performance of the brake pad completely accords with the national standard.
According to the noise test results, the average equivalent sound pressure level in the braking process of all the embodiments is 50+/-4 dB, which is lower than the limit value (55 dB) of class 1 environmental noise in the standard and is far lower than the limit value (70 dB) of class 4 environmental noise, which shows that the noise reduction performance is obvious.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and changes can be made by those skilled in the art without departing from the inventive concept and remain within the scope of the invention.
Claims (6)
1. A wear-resistant and noise-reducing bionic double-layer ceramic brake pad comprises a substrate layer and a contact layer positioned above the substrate layer, and is characterized in that the contact layer is provided with triangular grooves which are indirectly arranged, and wear-resistant adjusting materials are filled in the triangular grooves; the wear-resistant adjusting material is prepared by mixing the following raw materials in percentage by mass: 8-15% of zircon powder, 2-3% of graphene oxide, 0.5-5% of aluminum powder, 12-20% of tin powder, 2-9% of silver powder, 5-8% of molybdenum disulfide, 8-13% of antimony sulfide, 10-19% of linseed oil modified phenolic resin and 25-39% of calcium carbonate;
the extending direction of the triangular groove is radial direction, the depth of the triangular groovehFrom 3.75 to 5.25. 5.25mm groove widthw1.25-2.15mm, and the distance radian between two adjacent groovesγPi/60-pi/30; the ratio of the volume of the wear-resistant adjusting material to the total volume of the contact layerρ25-36%;
the base components of the substrate layer and the contact layer comprise the following components in percentage by mass: 20-30% of ceramic fiber, 12-15% of linseed oil modified phenolic resin, 5-8% of aramid fiber, 8-13% of mineral fiber, 1-2% of copper fiber, 16-22% of inorganic adhesive, 7-10% of nitrile rubber powder, 1-3% of zinc sulfide and 20-25% of potassium titanate whisker; the substrate layer and the contact layer comprise graphene and multidirectional combined crystal particles besides basic components, the content of the graphene and the multidirectional combined crystal particles in the contact layer is 2-3% and 8-11% of the total mass of the basic components respectively, and the content of the graphene and the multidirectional combined crystal particles in the substrate layer is 1-2% and 4-6% of the total mass of the basic components respectively.
2. The wear-resistant and noise-reducing bionic double-layer ceramic brake pad according to claim 1, wherein the thickness of the contact layer is 25-35% and the thickness of the base layer is 65-75% based on 100% of the total thickness of the base layer and the contact layer.
3. The bionic double-layer ceramic brake pad according to claim 1, wherein the preparation process of the multidirectional combined crystal particles is as follows: uniformly mixing, by mass, 10-13% of aluminum silicate hollow spheres, 7-15% of calcium carbonate whiskers, 15-25% of potassium titanate whiskers, 10-20% of antimony sulfide, 16-25% of boron powder and 15-25% of molybdenum powder, wherein the particle size of the raw material powder is 65-75 mu m, melting the raw material by using a melting furnace, and preserving heat for 2-3 hours at 500-600 ℃ at the temperature of the melting furnace, wherein the shielding gas is argon; then dispersing the particles by a roller extruder, wherein the surface temperature of the roller is 70-80 ℃ and the time is 15-25 minutes, and the multidirectional combined crystal particles are obtained, and the particle size range is 35-45 mu m.
4. The method for preparing the wear-resistant and noise-reducing bionic double-layer ceramic brake pad according to claim 1, which is characterized by comprising the following process steps:
s1) preforming: respectively and uniformly mixing the raw materials of the substrate layer and the contact layer and the raw materials of the wear-resistant adjusting material to obtain a raw material mixture of the substrate layer, a raw material mixture of the contact layer and a raw material mixture of the wear-resistant adjusting material;
s2) hot press molding: sequentially filling the raw material mixture of the matrix layer and the raw material mixture of the contact layer into a mold, and respectively applying 5-10MPa for preforming; placing the obtained preformed blank in a heat treatment furnace, raising the temperature to 550-650 ℃ at 10-15 ℃/min under the protection of nitrogen, setting the hot pressing pressure to 120-180 MPa, cooling to room temperature and demoulding to obtain a bionic double-layer ceramic brake block blank;
s3) triangular groove forming and filling: cutting ceramic brake blank with precise cutter to form triangular groove in contact layer, filling wear-resisting regulating material into the triangular groove, filling, placing into hot pressing mold under 8-12MPa pressure, melting in high temperature vacuum furnace at 250-300 deg.C for 15-20 min, and vacuum degree of 0.8-1.2X10 -3 Pa, cooling along with the furnace to obtain a bionic double-layer ceramic brake block blank filled with the wear-resistant adjusting material;
s4) heat treatment of the brake pad, wherein the bionic double-layer ceramic brake pad blank obtained in the S3) is subjected to heat treatment according to the following process: firstly heating to 137-150 ℃ and preserving heat for 2.5-4 hours, then heating to 165-180 ℃ and preserving heat for 6-7.5 hours, then heating to 195-205 ℃ and preserving heat for 1.5-1.8 hours, finally cooling to room temperature, and then carrying out aftertreatment to obtain the wear-resistant noise-reducing bionic double-layer ceramic brake pad.
5. The method for preparing the wear-resistant and noise-reducing bionic double-layer ceramic brake pad according to claim 4, wherein S2) hot press molding is carried out in sections, the heating temperature is from 25-30 ℃ to 250-300 ℃, the temperature is kept for 5-10 minutes, the temperature is further heated to 550-650 ℃, the temperature is kept for 5-10 minutes, and the pressure is kept at 80-120MPa in the heating process.
6. The method for preparing the wear-resistant and noise-reducing bionic double-layer ceramic brake pad according to claim 4, which is characterized in that the post-treatment process comprises the following steps: the automatic grinding machine is used for grinding, slotting and chamfering the brake pad, when the brake pad passes through the rear section of the grinding machine, corresponding equipment is adopted for degaussing and surface cleaning treatment, and an electrostatic spraying process is adopted for spraying the brake pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111298212.9A CN114110061B (en) | 2021-11-04 | 2021-11-04 | Wear-resistant noise-reducing bionic double-layer ceramic brake pad and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111298212.9A CN114110061B (en) | 2021-11-04 | 2021-11-04 | Wear-resistant noise-reducing bionic double-layer ceramic brake pad and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114110061A CN114110061A (en) | 2022-03-01 |
| CN114110061B true CN114110061B (en) | 2023-11-28 |
Family
ID=80381200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111298212.9A Active CN114110061B (en) | 2021-11-04 | 2021-11-04 | Wear-resistant noise-reducing bionic double-layer ceramic brake pad and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114110061B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114774759B (en) * | 2022-06-20 | 2022-09-16 | 太原理工大学 | Layered gradient SiC ceramic reinforced iron-based wear-resistant material and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438130A (en) * | 2013-08-31 | 2013-12-11 | 青岛承天伟业机械制造有限公司 | Automobile disc brake pad |
| CN204419929U (en) * | 2015-01-28 | 2015-06-24 | 盐城工学院 | Automobile ceramic-base brake block |
| CN205533919U (en) * | 2016-04-06 | 2016-08-31 | 江苏金麦穗新能源科技股份有限公司 | Inserted brake block |
| CN106147124A (en) * | 2016-06-29 | 2016-11-23 | 芜湖德业摩擦材料有限公司 | A kind of heavy-load automobile brake block friction material |
| CN106678210A (en) * | 2017-03-07 | 2017-05-17 | 石嘴山市金辉科贸有限公司 | Wear-resisting type brake pad for automobile |
| CN108412924A (en) * | 2018-02-06 | 2018-08-17 | 武汉理工大学 | A kind of multi-layer compound structure ceramic brake sheet material and preparation method thereof |
| CN109236903A (en) * | 2018-11-06 | 2019-01-18 | 武汉理工大学 | A kind of bilayer micronic dust low noise ceramic brake sheet material and preparation method thereof |
| CN209053990U (en) * | 2018-09-30 | 2019-07-02 | 山东金麒麟股份有限公司 | Disc brake pad |
| CN110723925A (en) * | 2019-10-15 | 2020-01-24 | 武汉理工大学 | Curved hole runner ceramic-based brake pad composite material and preparation method thereof |
| CN111442045A (en) * | 2020-04-10 | 2020-07-24 | 山东金力新材料科技股份有限公司 | Ceramic-based high-temperature-resistant brake pad and preparation method thereof |
-
2021
- 2021-11-04 CN CN202111298212.9A patent/CN114110061B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438130A (en) * | 2013-08-31 | 2013-12-11 | 青岛承天伟业机械制造有限公司 | Automobile disc brake pad |
| CN204419929U (en) * | 2015-01-28 | 2015-06-24 | 盐城工学院 | Automobile ceramic-base brake block |
| CN205533919U (en) * | 2016-04-06 | 2016-08-31 | 江苏金麦穗新能源科技股份有限公司 | Inserted brake block |
| CN106147124A (en) * | 2016-06-29 | 2016-11-23 | 芜湖德业摩擦材料有限公司 | A kind of heavy-load automobile brake block friction material |
| CN106678210A (en) * | 2017-03-07 | 2017-05-17 | 石嘴山市金辉科贸有限公司 | Wear-resisting type brake pad for automobile |
| CN108412924A (en) * | 2018-02-06 | 2018-08-17 | 武汉理工大学 | A kind of multi-layer compound structure ceramic brake sheet material and preparation method thereof |
| CN209053990U (en) * | 2018-09-30 | 2019-07-02 | 山东金麒麟股份有限公司 | Disc brake pad |
| CN109236903A (en) * | 2018-11-06 | 2019-01-18 | 武汉理工大学 | A kind of bilayer micronic dust low noise ceramic brake sheet material and preparation method thereof |
| CN110723925A (en) * | 2019-10-15 | 2020-01-24 | 武汉理工大学 | Curved hole runner ceramic-based brake pad composite material and preparation method thereof |
| CN111442045A (en) * | 2020-04-10 | 2020-07-24 | 山东金力新材料科技股份有限公司 | Ceramic-based high-temperature-resistant brake pad and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 钟厉 黄新等.《石墨烯对树脂基摩擦材料性能影响》.2021,第49卷(第5期),106-110页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114110061A (en) | 2022-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102011043B (en) | Preparation method of powder metallurgy material for train brake pad | |
| CN102062169B (en) | Production method of ceramic automobile braking friction plate | |
| CN108518432B (en) | Copper-free NAO friction material and preparation method and application thereof | |
| CN103668012B (en) | A kind of enhancement type Cu-base composites and its preparation method and application | |
| CN112377548B (en) | Wear-resistant noise-reducing metal-based high-speed rail brake pad and preparation method thereof | |
| CN108658613A (en) | A kind of method that staple fiber molding prepares automobile brake disc | |
| CN105443601A (en) | High-performance clutch plate for heavy truck | |
| CN106674883A (en) | Composite brake pad with stable performance | |
| CN114110061B (en) | Wear-resistant noise-reducing bionic double-layer ceramic brake pad and preparation method thereof | |
| CN110923498A (en) | Copper-based powder metallurgy friction material containing metal carbide and metal oxide composite ceramic friction component and preparation method thereof | |
| CN108250667B (en) | Wear-resistant brake friction material and preparation method thereof | |
| CN105952825B (en) | A kind of high-performance composite fibre brake block | |
| CN110724847B (en) | Method for preparing bicontinuous phase composite material by pressureless infiltration | |
| CN109513914B (en) | Powder metallurgy friction material, powder metallurgy brake pad and preparation method thereof | |
| CN110594323A (en) | Composite double-layer brake pad and preparation method thereof | |
| CN102229467B (en) | Glass ceramic based automobile brake pad and preparation method thereof | |
| CN112980392A (en) | Wear-resistant low-noise soft brake pad and preparation method thereof | |
| US20230235802A1 (en) | Light metal structure-function dual-gradient composite brake disc (brake drum) | |
| CN109929511B (en) | Copper-free and antimony-free environment-friendly friction material, friction plate, preparation method and application | |
| CN105909708B (en) | A kind of high-performance nano material brake piece | |
| CN110723925B (en) | Curved hole runner ceramic-based brake pad composite material and preparation method thereof | |
| CN113153927B (en) | Powder metallurgy friction sheet material for aviation high-power-density wet clutch | |
| CN104328368A (en) | Self-lubricating and wear-resistant copper-based composite material and preparation method thereof | |
| CN109988392B (en) | Basalt fiber cloth/resin-based wet friction material and preparation method thereof | |
| CN1687291A (en) | Method for fabricating high performance carbon/carbon friction resistance material |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |