WO2023060998A1 - 含碱土金属氧化物铝合金制动盘汽车刹车片及其制备方法 - Google Patents
含碱土金属氧化物铝合金制动盘汽车刹车片及其制备方法 Download PDFInfo
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- WO2023060998A1 WO2023060998A1 PCT/CN2022/109038 CN2022109038W WO2023060998A1 WO 2023060998 A1 WO2023060998 A1 WO 2023060998A1 CN 2022109038 W CN2022109038 W CN 2022109038W WO 2023060998 A1 WO2023060998 A1 WO 2023060998A1
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- WIPO (PCT)
- Prior art keywords
- automobile brake
- brake pad
- earth metal
- alkaline earth
- metal oxide
- Prior art date
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- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 title claims abstract description 45
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 30
- -1 bismaleimide modified phenolic resin Chemical class 0.000 claims abstract description 29
- 238000002156 mixing Methods 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000000748 compression moulding Methods 0.000 claims abstract description 14
- 239000004743 Polypropylene Substances 0.000 claims abstract description 12
- 229920001155 polypropylene Polymers 0.000 claims abstract description 12
- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 claims abstract description 11
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052898 antigorite Inorganic materials 0.000 claims abstract description 10
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 10
- 239000000440 bentonite Substances 0.000 claims abstract description 10
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims abstract description 10
- 229910001701 hydrotalcite Inorganic materials 0.000 claims abstract description 10
- 229960001545 hydrotalcite Drugs 0.000 claims abstract description 10
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 10
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 10
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 10
- 235000014380 magnesium carbonate Nutrition 0.000 claims abstract description 10
- 239000007799 cork Substances 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract 2
- 239000010959 steel Substances 0.000 claims abstract 2
- 238000003756 stirring Methods 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 22
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 12
- 241000357293 Leptobrama muelleri Species 0.000 claims description 9
- XENVCRGQTABGKY-ZHACJKMWSA-N chlorohydrin Chemical compound CC#CC#CC#CC#C\C=C\C(Cl)CO XENVCRGQTABGKY-ZHACJKMWSA-N 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 4
- 229920003192 poly(bis maleimide) Polymers 0.000 abstract description 21
- 230000005484 gravity Effects 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 2
- 229920005558 epichlorohydrin rubber Polymers 0.000 abstract description 2
- 108010081750 Reticulin Proteins 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000001723 curing Methods 0.000 description 64
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 24
- 229920001568 phenolic resin Polymers 0.000 description 17
- 239000005011 phenolic resin Substances 0.000 description 17
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 12
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 10
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Chemical compound [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 description 10
- XFNJYAKDBJUJAJ-UHFFFAOYSA-N 1,2-dibromopropane Chemical compound CC(Br)CBr XFNJYAKDBJUJAJ-UHFFFAOYSA-N 0.000 description 8
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 8
- 239000002783 friction material Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 description 4
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 4
- FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 4
- PLEZGBHMSVTPPQ-UHFFFAOYSA-N [O-2].[Ra+2] Chemical compound [O-2].[Ra+2] PLEZGBHMSVTPPQ-UHFFFAOYSA-N 0.000 description 4
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000013007 heat curing Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003831 antifriction material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 125000004218 chloromethyl group Chemical group [H]C([H])(Cl)* 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical group [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/027—Compositions based on metals or inorganic oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/027—Compositions based on metals or inorganic oxides
- F16D69/028—Compositions based on metals or inorganic oxides containing fibres
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—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
Definitions
- the invention relates to the technical field of automobile brake pads, in particular to an automobile brake pad for an aluminum alloy brake disc containing an alkaline earth metal oxide and a preparation method thereof.
- Lightweight is the development trend of global automobiles. It is very important to reduce the weight of vehicles. Brake discs are part of the unsprung mass of vehicles. Reducing the weight of brake discs can not only reduce emissions and pollution, but also further reduce vibration and noise. , Improve ride comfort, etc.
- the existing automobile brake discs are cast iron discs, and their mass is relatively large, while silicon carbide reinforced aluminum alloy brake discs have the advantages of small density, light weight, and fast heat dissipation. There is also an urgent need for emission reduction. Therefore, the lightweight of automobiles is bound to be a development trend. Once large-scale commercialization is successful, it will completely replace cast iron plates. Western developed countries have started research and development of silicon carbide-reinforced aluminum alloys since the 1990s.
- Patent CN 112594308 A discloses a preparation method of high-performance automobile brake pads. By fully considering the difference in the density of each component of the brake pads and the electrostatic adsorption phenomenon existing in the mixing process, the impact on the quality of the automobile brake pads is adopted. The mixing method fully ensures the uniform dispersion of each component.
- the patent emphasizes that the brake pads prepared by it have low defect rate, stable product performance, long service life, good wear resistance, stable friction coefficient, sensitive braking, and smooth braking. No brake squeal, good comfort performance, and no damage to the dual disc. The patent does not indicate whether the brake disc is an aluminum alloy disc or a cast iron disc.
- the properties of the aluminum alloy disc and the cast iron disc are completely different, so the production process and formula composition of the corresponding automobile brake pads are also completely different.
- the patent uses a 110-180°C hot-press forming process, and hot-press forming generally makes the product density higher, making it difficult to achieve lightweight.
- the purpose of the present invention is to provide an aluminum alloy brake disc containing an alkaline earth metal oxide, an automobile brake pad and a preparation method thereof.
- the automobile brake pad of the invention has high friction coefficient, light specific gravity, low hardness, low noise, low abrasion, no crack on the surface of the pair, effectively protects the pair and prolongs the service life of the automobile brake pad.
- the first object of the present invention is to provide a kind of alkaline earth metal oxide-containing aluminum alloy brake disc automobile brake pad material, including each component of the following mass percentages:
- the second object of the present invention is to provide a method for preparing automobile brake pads from an alkaline earth metal oxide aluminum alloy brake disc automobile brake pad material, comprising the following steps:
- the raw material mixing is bismaleimide modified phenolic resin, chlorohydrin rubber, antigorite, hydrotalcite, alkaline earth metal oxide in proportion , magnesite, bentonite and cork powder are added to the mixer for the first mixing and stirring, then aluminum borate whiskers and polypropylene mesh fibers are added in proportion, and the second mixing and stirring is performed until a uniform mixture is obtained.
- the stirring speed of the mixing and stirring process for the first time and the mixing and stirring process for the second time is 3500-4000r/min
- the time of mixing and stirring for the first time is 30-40min
- the time of mixing and stirring for the second time It is 4-8min.
- step (2) the compression molding is to put the steel back and the mixture into the mold, and apply pressure to press the mixture.
- the mold temperature is 30-95° C.
- the molding pressure is 30-45 MPa
- the air is deflated 3-5 times within 6 minutes
- the holding time is 120-240 s.
- the heat curing is a programmed temperature rise curing heat treatment.
- the curing temperatures during the temperature-programmed curing heat treatment are 110°C, 130°C, 150°C, and 180°C, respectively.
- the curing time in the curing process is a constant temperature curing time.
- the curing time when the curing temperature is 110°C, the curing time is 2-3h;
- the curing time is 5-6h
- the curing time is 6-7h
- the curing time is 10-12h.
- the third object of the present invention is to provide an automobile brake pad prepared based on the alkaline earth metal oxide-containing aluminum alloy brake disc automobile brake pad material obtained by the above method.
- Chlorohydrin rubber is a copolymer of epichlorohydrin and ethylene oxide. It has good elasticity, and the molecular chain has good flexibility. It contains chloromethyl polar groups, so it has good cold resistance and heat resistance. The range is -40°C-135°C.
- Polypropylene mesh fiber made of polypropylene as raw material, is a network structure formed by interlinking multiple fiber monofilaments through special processing and treatment, which enhances the bonding strength between the fiber and the friction material.
- Aluminum borate whiskers have a density of 2.93g/cm 3 , a melting point of 1440-1460°C, a heat-resistant temperature of 1200°C, a Mohs hardness of 7, a tensile strength of 7.84GPa, and a tensile modulus of elasticity of 392GPa. It has high elastic modulus, good mechanical strength, heat resistance, acid resistance and electrical insulation.
- Aluminum borate whiskers and polypropylene mesh fibers achieve the purpose of hybrid reinforcement, and are used as reinforcing materials in friction materials.
- Antigorite due to its layered structure and weak interlayer bonding, makes it exhibit good lubricating properties. It has good performance in both low temperature and high temperature stages, and is an excellent friction modifier with the effect of enhancing and reducing friction.
- Hydrotalcite thermally decomposed to release a large amount of water and carbon dioxide, can reduce the temperature of the system, and can also be used as a flame retardant.
- Alkaline earth metal oxides have a high melting point and high hardness, and are used as friction-increasing materials in this application. Comprising one or more compositions of magnesium oxide, calcium oxide, beryllium oxide, strontium oxide, barium oxide or radium oxide. It is preferably a mixture of one or more of beryllium oxide, strontium oxide, barium oxide or radium oxide.
- Magnesite, Mohs hardness 3.5-4.5, specific gravity 2.9-3.1, resistance-increasing mineral raw material mainly plays the role of adjusting friction coefficient, hardness and density in friction materials, and at the same time improving the braking noise of the product and reducing the cost.
- Bentonite, white, Mohs hardness 1-2, density 2-3g/cm 3 used as anti-friction material. It can absorb the friction heat of the friction material during the braking process, effectively slowing down the failure of the material due to overheating.
- the bentonite structure is loose and porous, which can reduce the hardness and noise of friction materials.
- This application uses compression molding at 30-95°C, which belongs to the cold-press forming process.
- the density of the brake pads produced by cold-press forming is as low as 1.4-1.6g/cm 3 , which can achieve light weight.
- the products of cold-press forming process have high Excellent friction coefficient, high porosity, low hardness, low noise, low wear and low manufacturing cost.
- the present invention has the following beneficial effects:
- the present invention relates to an automobile brake pad matched with an aluminum alloy disc, which fills the gap in this field, and has a density as low as 1.4-1.6g/cm 3 , and realizes light weight.
- Alkaline earth metal oxides have high hardness.
- bismaleimide modified phenolic resin is added to the formula system to improve the heat resistance of the brake pads.
- chlorohydrin rubber makes it synergistic with bismaleimide-modified phenolic resin, and overcomes the shortcomings of simple phenolic resin, such as high brittleness and poor heat resistance. It makes the heat resistance and shear strength of the automobile brake pads greater, which in turn makes the brake pads have a higher coefficient of friction.
- the formed automobile brake pad has a high friction coefficient, light specific gravity, low hardness, low noise, low wear, no cracks on the surface of the pair, and effectively protects the pair. Extend the service life of automobile brake pads.
- the first object of the present invention is to provide a kind of alkaline earth metal oxide-containing aluminum alloy brake disc automobile brake pad material, including each component of the following mass percentages:
- the second object of the present invention is to provide a method for preparing automobile brake pads from an alkaline earth metal oxide aluminum alloy brake disc automobile brake pad material, comprising the following steps:
- the raw material mixing is bismaleimide modified phenolic resin, chlorohydrin rubber, antigorite, hydrotalcite, alkaline earth metal oxide in proportion , magnesite, bentonite and cork powder are added to the mixer for the first mixing and stirring, then aluminum borate whiskers and polypropylene mesh fibers are added in proportion, and the second mixing and stirring is performed until a uniform mixture is obtained.
- the stirring speed of the mixing and stirring process for the first time and the mixing and stirring process for the second time is 3500-4000r/min
- the time of mixing and stirring for the first time is 30-40min
- the time of mixing and stirring for the second time It is 4-8min.
- step (2) the compression molding is to put the steel back and the mixture into the mold, and apply pressure to press the mixture.
- the mold temperature is 30-95° C.
- the molding pressure is 30-45 MPa
- the air is deflated 3-5 times within 6 minutes
- the holding time is 120-240 s.
- the heat curing is a programmed temperature rise curing heat treatment.
- the curing temperatures during the temperature-programmed curing heat treatment are 110°C, 130°C, 150°C, and 180°C, respectively.
- the curing time in the curing process is a constant temperature curing time.
- the curing time when the curing temperature is 110°C, the curing time is 2-3h;
- the curing time is 5-6h
- the curing time is 6-7h
- the curing time is 10-12h.
- the present invention also provides an automobile brake pad prepared based on the alkaline earth metal oxide-containing aluminum alloy brake disc automobile brake pad material obtained by the above method.
- epichlorohydrin rubber, aluminum borate whiskers, polypropylene mesh fibers, antigorite, hydrotalcite, alkaline earth metal oxides (beryllium oxide, strontium oxide, barium oxide, radium oxide), magnesite, Bentonite and cork powder are conventional raw materials in this field.
- This embodiment provides an automobile brake pad for an aluminum alloy brake disc containing an alkaline earth metal oxide, comprising the following steps:
- the alkaline earth metal oxide is selected from a mixture of beryllium oxide and strontium oxide at a mass ratio of 1:1.
- the preparation of the bismaleimide modified phenolic resin the phenolic resin is added in the there-necked flask, then N, N-dimethylformamide (as a solvent) is heated and dissolved, and the mass fraction is added to 25% NaOH solution, Finally, a certain proportion of propylene bromide liquid is added dropwise, wherein the molar ratio of phenolic resin, NaOH and propylene bromide is: 1:1.2:1.5, and the reaction is kept at 50°C for 6-6.5 hours, and finally allyl etherified phenolic resin is obtained.
- the conditions for heating and curing are: put it in an oven, and perform a programmed temperature rise curing heat treatment.
- the time for rising from room temperature to 110°C is 90 minutes, and the heating time for each two intervals of temperature from 110-180°C is 60 minutes.
- the curing time is 2h; when the curing temperature is 130°C, the curing time is 5h; when the curing temperature is 150°C, the curing time is 6h; when the curing temperature is 180°C, the curing time is 10h.
- This embodiment provides an automobile brake pad for an aluminum alloy brake disc containing an alkaline earth metal oxide, comprising the following steps:
- the alkaline earth metal oxide is selected from a mixture of barium oxide and strontium oxide at a mass ratio of 1:1.
- the preparation of the bismaleimide modified phenolic resin the phenolic resin is added in the there-necked flask, then N, N-dimethylformamide (as a solvent) is heated and dissolved, and the mass fraction is added to 25% NaOH solution, Finally, a certain proportion of propylene bromide liquid is added dropwise, wherein the molar ratio of phenolic resin, NaOH and propylene bromide is: 1:1.2:1.5, and the reaction is kept at 50°C for 6-6.5 hours, and finally allyl etherified phenolic resin is obtained.
- the curing time is 2h; when the curing temperature is 130°C, the curing time is 6h; when the curing temperature is 150°C, the curing time is 6h; when the curing temperature is 180°C, the curing time is 11h.
- This embodiment provides an automobile brake pad for an aluminum alloy brake disc containing an alkaline earth metal oxide, comprising the following steps:
- the alkaline earth metal oxide is selected from radium oxide.
- the preparation of the bismaleimide modified phenolic resin the phenolic resin is added in the there-necked flask, then N, N-dimethylformamide (as a solvent) is heated and dissolved, and the mass fraction is added to 25% NaOH solution, Finally, a certain proportion of propylene bromide liquid is added dropwise, wherein the molar ratio of phenolic resin, NaOH and propylene bromide is: 1:1.2:1.5, and the reaction is kept at 50°C for 6-6.5 hours, and finally allyl etherified phenolic resin is obtained.
- the curing time is 3h; when the curing temperature is 130°C, the curing time is 5h; when the curing temperature is 150°C, the curing time is 6h; when the curing temperature is 180°C, the curing time is 11h.
- This embodiment provides an automobile brake pad for an aluminum alloy brake disc containing an alkaline earth metal oxide, comprising the following steps:
- the alkaline earth metal oxide is selected from barium oxide.
- the preparation of the bismaleimide modified phenolic resin the phenolic resin is added in the there-necked flask, then N, N-dimethylformamide (as a solvent) is heated and dissolved, and the mass fraction is added to 25% NaOH solution, Finally, a certain proportion of propylene bromide liquid is added dropwise, wherein the molar ratio of phenolic resin, NaOH and propylene bromide is: 1:1.2:1.5, and the reaction is kept at 50°C for 6-6.5 hours, and finally allyl etherified phenolic resin is obtained.
- the curing time is 3h; when the curing temperature is 130°C, the curing time is 6h; when the curing temperature is 150°C, the curing time is 7h; when the curing temperature is 180°C, the curing time is 12h.
- Alkaline earth metal oxides are not added, and the rest of the formula composition and production process are the same as in Example 1, and the prepared automobile brake pad is marked as X. Carry out the automobile brake pad and the automobile brake pad X that embodiment makes respectively
- Example 1 Example 2
- Example 3 Example 4 x Density (g/cm 3 ) 1.40 1.55 1.45 1.60 1.62 Hardness (HRR) 66 55 60 70 80 Noise(dB(A)) 70 65 60 62 88 Shear strength (MPa) 6.0 7.5 6.8 8.5 3.5 coefficient of friction 0.44 0.45 0.43 0.46 0.32 Wear rate after test (cm 3 /MJ) 0.15 0.12 0.14 0.16 0.30 Whether there is any crack on the surface of the brake pad after the test none none none none none none none none Whether there is any crack on the surface of the aluminum alloy disc after the test none none none none have
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Abstract
一种含碱土金属氧化物铝合金制动盘汽车刹车片及其制备方法,涉及汽车刹车片技术领域;将双马来酰亚胺改性酚醛树脂、氯醇橡胶、硼酸铝晶须、聚丙烯网状纤维、叶蛇纹石、水滑石、碱土金属氧化物、菱镁矿、膨润土、软木粉按比例放入混料机,混合后得到混合料;然后将钢背、混合料置于模具中进行模压成型,得到毛坯;最后将毛坯加热固化,加工制得汽车刹车片,能够获得高的摩擦系数,比重轻,硬度低,噪声小,磨耗低,对偶表面无裂纹,有效保护对偶,延长汽车刹车片使用寿命。
Description
本发明涉及汽车刹车片技术领域,尤其是涉及含碱土金属氧化物铝合金制动盘汽车刹车片及其制备方法。
轻量化是全球汽车的发展趋势,减轻车辆重量至关重要,制动盘作为车辆簧下质量的一部分,减少汽车制动盘的重量不仅能减少排放,降低污染,还能进一步减轻振动、降低噪声、提高乘坐舒适度等。目前,现有汽车刹车盘是铸铁盘,其质量较大,而碳化硅增强铝合金制动盘具有密度小、质量轻、散热快等优点,随着环境压力的不断增大,对汽车在节能减排方面的要求也刻不容缓,因此,汽车轻量化必将是一个发展趋势,一旦大规模商业化成功,必将全面取代铸铁盘。西方发达国家从上世纪90年代就开始了碳化硅增强铝合金的研发,至今也只有德国KNORR公司在城轨车辆上有少量应用,未见在汽车上有所应用。许多的研究机构都选择了放弃,究其原因,主要是因为铝合金硬度低、熔点低,没有合适的汽车刹车片与其相匹配。因此,与铝合金盘配套的汽车刹车片的研发就迫在眉睫。
专利CN 112594308 A公开了一种高性能汽车刹车片的制备方法,通过充分考虑到刹车片各组分密度的差异以及混合过程中存在的静电吸附现象,对汽车刹车片质量的影响,采用多步混料法,充分保证了各组分的均匀分散,该专利强调其制备的刹车片不良率低,产品性能稳定,使用寿命长,耐磨性能良好,摩擦系数稳定,刹车灵敏,制动平稳,无制动尖叫声,舒适性能较好,并且对偶盘无损伤。该专利没有表明制动盘是铝合金盘还是铸铁盘,铝合金盘与铸铁盘的性能截然不同,因此相对应的汽车刹车片的生产工艺及配方组成也完全不同。另外,该专利采用的是110~180℃热压成型工艺,而热压成型一般使得产品密度较高,较难以实现轻量化。
发明内容
针对上述问题,本发明的目的是提供含碱土金属氧化物铝合金制动盘汽车刹车片及其制备方法。本发明的汽车刹车片具有高的摩擦系数,比重轻,硬度低,噪声小,磨耗低,对偶表面无裂纹,有效保护对偶,延长汽车刹车片使用寿命。
本发明的目的可以通过以下技术方案来实现:
本发明的第一个目的是提供一种含碱土金属氧化物铝合金制动盘汽车刹车片材料,包括以下质量百分比的各组分:
本发明的第二个目的是提供一种含碱土金属氧化物铝合金制动盘汽车刹车片材料制备汽车刹车片的方法,包括以下步骤:
(1)原料混合:将所述含碱土金属氧化物铝合金制动盘汽车刹车片材料各组分按比例放入混料机,混合得到混合料;
(2)模压成型:将钢背、混合料置于模具中进行压制成型,得到毛坯;
(3)固化热处理:将毛坯加热固化,加工后制备得到汽车刹车片。
在本发明的一个实施方式中,步骤(1)中,所述原料混合是按比例把双马来酰亚胺改性酚醛树脂、氯醇橡胶、叶蛇纹石、水滑石、碱土金属氧化物、菱镁矿、膨润土及软木粉加入到混料机中第一次混合搅拌,再按比例加入硼酸铝晶须、聚丙烯网状纤维,进行第二次混合搅拌至得到均匀混合料。
在本发明的一个实施方式中,第一次混合搅拌和第二次混合搅拌过程的搅拌转速为3500-4000r/min,第一次混合搅拌的时间为30-40min,第二次混合搅拌的时间为4-8min。
在本发明的一个实施方式中,步骤(2)中,所述模压成型是将钢背和混合料放入模具中,施加压力将混合料压制成型。
在本发明的一个实施方式中,所述模压成型过程中,模具温度为30-95℃,成型压力为30-45MPa,6分钟内放气3-5次,保压时间为120-240s。
在本发明的一个实施方式中,步骤(3)中,所述加热固化为程序式升温固化热处理。
在本发明的一个实施方式中,所述程序式升温固化热处理过程中固化温度分别为110℃、130℃、150℃、180℃。
在本发明的一个实施方式中,所述固化过程中固化时间为恒温固化时间。
在本发明的一个实施方式中,固化温度为110℃时,固化时间为2-3h;
固化温度为130℃时,固化时间为5-6h;
固化温度为150℃时,固化时间为6-7h;
固化温度为180℃时,固化时间为10-12h。
本发明第三个目的在于提供基于上述方法得到的含碱土金属氧化物铝合金制动盘汽车刹车片材料制备的汽车刹车片。
各原料作用:
双马来酰亚胺改性酚醛树脂,改性后热分解温度大大提高,不会出现高温热衰退现象。
氯醇橡胶,是环氧氯丙烷和环氧乙烷的共聚物,弹性好,分子链具有较好的柔顺性,含有氯甲基极性基团,因而耐寒性及耐热性好,使用温度范围为-40℃-135℃。
聚丙烯网状纤维,以聚丙烯为原料,经特殊加工和处理制成的多根纤维单丝相互交连而成的网状结构,增强了纤维和摩擦材料的粘结强度。
硼酸铝晶须,密度为2.93g/cm
3,熔点为1440-1460℃,耐热温度1200℃,莫氏硬度为7,拉伸强度为7.84GPa,拉伸弹性模量为392GPa。具有高的弹性率、良好的机械强度、耐热性、耐酸性、电绝缘性。硼酸铝晶须与聚丙烯网状纤维达到混杂增强的目的,在摩擦材料中用作增强材料。
叶蛇纹石,由于层状结构以及弱的层间结合力,使其表现出良好的润滑性能。在低温和高温阶段都有良好表现,是优良的摩擦调节剂,具有增强、减摩效果。
水滑石,受热分解释放出大量的水和二氧化碳,能降低体系温度,还能用做阻燃剂。
碱土金属氧化物:熔点很高、硬度也较大,在本申请中用作增摩材料。包括氧化镁、氧化钙、氧化铍、氧化锶、氧化钡或氧化镭的一种或多种组成的混合物。优选为氧化铍、氧化锶、氧化钡或氧化镭的一种或多种组成的混合物。
菱镁矿,莫氏硬度3.5~4.5,比重2.9~3.1,增阻矿物原料,在摩擦材料中主要起调节摩擦系数、硬度和密度,同时改善产品的制动噪音,并降低成本的作用。
膨润土,白色,莫氏硬度1~2,密度2~3g/cm
3,作减摩材料。可吸收摩擦材料在制动过程中的摩擦热,有效减缓材料过热失效的程度。膨润土结构疏松多孔,能降低摩擦材料硬度与噪音。
本申请采用在30~95℃条件下压制成型,属于冷压成型工艺,冷压成型制得的刹车片密度低至1.4-1.6g/cm
3,能够实现轻量化,冷压成型工艺产品具有高的摩擦系数、孔隙率高、硬度低、噪音小、磨耗低及制造成本低等优点。
与现有技术相比,本发明具有以下有益效果:
(1)本发明涉及一种与铝合金盘配套的汽车刹车片,填补这个领域的空白,密度低至1.4-1.6g/cm
3,实现轻量化。
(2)在摩擦材料中添加碱土金属氧化物,碱土金属氧化物具有高的硬度,同时在配方体系中,加入双马来酰亚胺改性酚醛树脂,提高了刹车片的耐热性,同时加入氯醇橡胶,使其与双马来酰亚胺改性酚醛树脂的性能协同,克服了单纯酚醛树脂脆性大和耐热性差的缺点。使得汽车刹车片的耐热性与剪切强度更大,进而使得刹车片具有较高的摩擦系数。
(3)通过优化原料组合,合理设置配比和冷压生产工艺,形成的汽车刹车片具有高的摩擦系数,比重轻,硬度低,噪声小,磨耗低,对偶表面无裂纹,有效保护对偶,延长汽车刹车片使用寿命。
本发明的目的可以通过以下技术方案来实现:
本发明的第一个目的是提供一种含碱土金属氧化物铝合金制动盘汽车刹车片材料,包括以下质量百分比的各组分:
本发明的第二个目的是提供一种含碱土金属氧化物铝合金制动盘汽车刹车片材料制备汽车刹车片的方法,包括以下步骤:
(1)原料混合:将所述含碱土金属氧化物铝合金制动盘汽车刹车片材料各组分按比例放入混料机,混合得到混合料;
(2)模压成型:将钢背、混合料置于模具中进行压制成型,得到毛坯;
(3)固化热处理:将毛坯加热固化,加工后制备得到汽车刹车片。
在本发明的一个实施方式中,步骤(1)中,所述原料混合是按比例把双马来酰亚胺改性酚醛树脂、氯醇橡胶、叶蛇纹石、水滑石、碱土金属氧化物、菱镁矿、膨润土及软木粉加入到混料机中第一次混合搅拌,再按比例加入硼酸铝晶须、聚丙烯网状纤维,进行第二次混合搅拌至得到均匀混合料。
在本发明的一个实施方式中,第一次混合搅拌和第二次混合搅拌过程的搅拌转速为3500-4000r/min,第一次混合搅拌的时间为30-40min,第二次混合搅拌的时间为4-8min。
在本发明的一个实施方式中,步骤(2)中,所述模压成型是将钢背和混合料放入模具中,施加压力将混合料压制成型。
在本发明的一个实施方式中,所述模压成型过程中,模具温度为30-95℃,成型压力为30-45MPa,6分钟内放气3-5次,保压时间为120-240s。
在本发明的一个实施方式中,步骤(3)中,所述加热固化为程序式升温固化热处理。
在本发明的一个实施方式中,所述程序式升温固化热处理过程中固化温度分别为110℃、130℃、150℃、180℃。
在本发明的一个实施方式中,所述固化过程中固化时间为恒温固化时间。
在本发明的一个实施方式中,固化温度为110℃时,固化时间为2-3h;
固化温度为130℃时,固化时间为5-6h;
固化温度为150℃时,固化时间为6-7h;
固化温度为180℃时,固化时间为10-12h。
本发明还提供基于上述方法得到的含碱土金属氧化物铝合金制动盘汽车刹车片材料制备的汽车刹车片。
下面结合具体实施例对本发明进行详细说明。
以下实施例中,氯醇橡胶、硼酸铝晶须、聚丙烯网状纤维、叶蛇纹石、水滑石、碱土金属氧化物(氧化铍、氧化锶、氧化钡、氧化镭)、菱镁矿、膨润土、软木粉均为本领域常规原料。
实施例1
本实施例提供一种含碱土金属氧化物铝合金制动盘汽车刹车片,包括以下步骤:
(1)原料的配制:
本实施例中碱土金属氧化物选自氧化铍与氧化锶质量比1:1的混合物。
其中双马来酰亚胺改性酚醛树脂的制备:将酚醛树脂加入三口烧瓶中,再加入N,N-二甲基甲酰胺(作为溶剂)加热溶解后,加入质量分数为25%NaOH溶液,最后滴加一定比例的溴丙烯液体,其中酚醛树脂、NaOH与溴丙烯的摩尔比为:1:1.2:1.5,在50℃保持反应6-6.5h,最后得到烯丙基醚化酚醛树脂。将烯丙基醚化酚醛树脂和双马来酰亚胺按质量比1.4:1加入到三口烧瓶中,边搅拌边溶解,加入质量比为1%的过氧化二异丙苯(作为催化剂),160℃,反应1-1.5h,冷却即得双马来酰亚胺改性酚醛树脂。
(2)制备:
按比例把双马来酰亚胺改性酚醛树脂,氯醇橡胶,叶蛇纹石,水滑石,碱 土金属氧化物,菱镁矿,膨润土及软木粉加入到高速犁耙式混料机中混合搅拌,转速为3500r/min,时间30min,再按比例加入硼酸铝晶须,聚丙烯网状纤维进行混合搅拌4min至均匀。将准备好的混合料和钢背放入模具中,模具温度30℃,成型压力30MPa,6分钟内放气5次,然后保压120s。
加热固化的条件是:放入烘箱中,进行程序式升温固化热处理,从室温升到110℃时间为90min,从110-180℃其中每两个区间温度的升温时间为60min,
固化温度为110℃时,固化时间为2h,固化温度为130℃时,固化时间为5h,固化温度为150℃时,固化时间为6h,固化温度为180℃时,固化时间为10h。
实施例2
本实施例提供一种含碱土金属氧化物铝合金制动盘汽车刹车片,包括以下步骤:
(1)原料的配制:
本实施例中碱土金属氧化物选自氧化钡与氧化锶质量比1:1的混合物。
其中双马来酰亚胺改性酚醛树脂的制备:将酚醛树脂加入三口烧瓶中,再加入N,N-二甲基甲酰胺(作为溶剂)加热溶解后,加入质量分数为25%NaOH溶液,最后滴加一定比例的溴丙烯液体,其中酚醛树脂、NaOH与溴丙烯的摩尔比为:1:1.2:1.5,在50℃保持反应6-6.5h,最后得到烯丙基醚化酚醛树脂。将烯丙基醚化酚醛树脂和双马来酰亚胺按质量比1.4:1加入到三口烧瓶中,边搅拌边溶解,加入质量比为1%的过氧化二异丙苯(作为催化剂),160℃,反 应1-1.5h,冷却即得双马来酰亚胺改性酚醛树脂。
(2)制备:
按比例把双马来酰亚胺改性酚醛树脂,氯醇橡胶,叶蛇纹石,水滑石,碱土金属氧化物,菱镁矿,膨润土及软木粉加入到高速犁耙式混料机中混合搅拌,转速为4000r/min,时间35min,再按比例加入硼酸铝晶须,聚丙烯网状纤维进行混合搅拌6min至均匀。将准备好的混合料和钢背放入模具中,模具温度65℃,成型压力35MPa,6分钟内放气4次,然后保压200s。
固化温度为110℃时,固化时间为2h,固化温度为130℃时,固化时间为6h,固化温度为150℃时,固化时间为6h,固化温度为180℃时,固化时间为11h。
实施例3
本实施例提供一种含碱土金属氧化物铝合金制动盘汽车刹车片,包括以下步骤:
(1)原料的配制:
本实施例中碱土金属氧化物选自氧化镭。
其中双马来酰亚胺改性酚醛树脂的制备:将酚醛树脂加入三口烧瓶中,再加入N,N-二甲基甲酰胺(作为溶剂)加热溶解后,加入质量分数为25%NaOH溶液,最后滴加一定比例的溴丙烯液体,其中酚醛树脂、NaOH与溴丙烯的摩尔比为:1:1.2:1.5,在50℃保持反应6-6.5h,最后得到烯丙基醚化酚醛树脂。将烯丙基醚化酚醛树脂和双马来酰亚胺按质量比1.4:1加入到三口烧瓶中,边 搅拌边溶解,加入质量比为1%的过氧化二异丙苯(作为催化剂),160℃,反应1-1.5h,冷却即得双马来酰亚胺改性酚醛树脂。
(2)制备:
按比例把双马来酰亚胺改性酚醛树脂,氯醇橡胶,叶蛇纹石,水滑石,碱土金属氧化物,菱镁矿,膨润土及软木粉加入到高速犁耙式混料机中混合搅拌,转速为3750r/min,时间33min,再按比例加入硼酸铝晶须,聚丙烯网状纤维进行混合搅拌7min至均匀。将准备好的混合料和钢背放入模具中,模具温度85℃,成型压力45MPa,6分钟内放气3次,然后保压240s。
固化温度为110℃时,固化时间为3h,固化温度为130℃时,固化时间为5h,固化温度为150℃时,固化时间为6h,固化温度为180℃时,固化时间为11h。
实施例4
本实施例提供一种含碱土金属氧化物铝合金制动盘汽车刹车片,包括以下步骤:
(1)原料的配制:
本实施例中碱土金属氧化物选自氧化钡。
其中双马来酰亚胺改性酚醛树脂的制备:将酚醛树脂加入三口烧瓶中,再加入N,N-二甲基甲酰胺(作为溶剂)加热溶解后,加入质量分数为25%NaOH溶液,最后滴加一定比例的溴丙烯液体,其中酚醛树脂、NaOH与溴丙烯的摩尔比为:1:1.2:1.5,在50℃保持反应6-6.5h,最后得到烯丙基醚化酚醛树脂。 将烯丙基醚化酚醛树脂和双马来酰亚胺按质量比1.4:1加入到三口烧瓶中,边搅拌边溶解,加入质量比为1%的过氧化二异丙苯(作为催化剂),160℃,反应1-1.5h,冷却即得双马来酰亚胺改性酚醛树脂。
(2)制备:
按比例把双马来酰亚胺改性酚醛树脂,氯醇橡胶,叶蛇纹石,水滑石,碱土金属氧化物,菱镁矿,膨润土及软木粉加入到高速犁耙式混料机中混合搅拌,转速为3500r/min,时间40min,再按比例加入硼酸铝晶须,聚丙烯网状纤维进行混合搅拌8min至均匀。将准备好的混合料和钢背放入模具中,模具温度95℃,成型压力40MPa,6分钟内放气4次,然后保压180s。
固化温度为110℃时,固化时间为3h,固化温度为130℃时,固化时间为6h,固化温度为150℃时,固化时间为7h,固化温度为180℃时,固化时间为12h。
不添加碱土金属氧化物,其余配方组成、生产工艺同实施例1,制得的汽车刹车片记为X。分别对实施例制得的汽车刹车片及汽车刹车片X进行
AK-MASTER试验和物理力学试验,结果如表1所示:
表1汽车刹车片性能测试数据
实施例1 | 实施例2 | 实施例3 | 实施例4 | X | |
密度(g/cm 3) | 1.40 | 1.55 | 1.45 | 1.60 | 1.62 |
硬度(HRR) | 66 | 55 | 60 | 70 | 80 |
噪声(dB(A)) | 70 | 65 | 60 | 62 | 88 |
剪切强度(MPa) | 6.0 | 7.5 | 6.8 | 8.5 | 3.5 |
摩擦系数 | 0.44 | 0.45 | 0.43 | 0.46 | 0.32 |
试验后磨损率(cm 3/MJ) | 0.15 | 0.12 | 0.14 | 0.16 | 0.30 |
试验后刹车片表面有无裂纹 | 无 | 无 | 无 | 无 | 无 |
试验后铝合金盘表面有无裂纹 | 无 | 无 | 无 | 无 | 有 |
通过性能测试数据可以看出,添加碱土金属氧化物的实施例制得的汽车刹车片,具有高的摩擦系数,比重轻,硬度低,噪声小,磨耗低,对偶表面无裂纹,有效保护对偶,延长汽车刹车片使用寿命。
上述的对实施例的描述是为便于该技术领域的普通技术人员能理解和使用发 明。熟悉本领域技术的人员显然可以容易地对这些实施例做出各种修改,并把在此说明的一般原理应用到其他实施例中而不必经过创造性的劳动。因此,本发明不限于上述实施例,本领域技术人员根据本发明的揭示,不脱离本发明范畴所做出的改进和修改都应该在本发明的保护范围之内。
Claims (10)
- 采用如权利要求1所述的一种含碱土金属氧化物铝合金制动盘汽车刹车片材料制备汽车刹车片的方法,其特征在于,包括以下步骤:(1)原料混合:将所述含碱土金属氧化物铝合金制动盘汽车刹车片材料各组分按比例放入混料机,混合得到混合料;(2)模压成型:将钢背、混合料置于模具中进行压制成型,得到毛坯;(3)固化热处理:将毛坯加热固化,加工后制备得到汽车刹车片。
- 根据权利要求2所述的一种含碱土金属氧化物铝合金制动盘汽车刹车片材料制备汽车刹车片的方法,其特征在于,步骤(1)中,所述原料混合是按比例把双马来酰亚胺改性酚醛树脂、氯醇橡胶、叶蛇纹石、水滑石、碱土金属氧化物、菱镁矿、膨润土及软木粉加入到混料机中第一次混合搅拌,再按比例加入硼酸铝晶须、聚丙烯网状纤维,进行第二次混合搅拌至得到均匀混合料。
- 根据权利要求3所述的一种含碱土金属氧化物铝合金制动盘汽车刹车片材料制备汽车刹车片的方法,其特征在于,第一次混合搅拌和第二次混合搅拌过程的搅拌转速为3500-4000r/min,第一次混合搅拌的时间为30-40min,第二次混合搅拌的时间为4-8min。
- 根据权利要求2所述的一种含碱土金属氧化物铝合金制动盘汽车刹车片材 料制备汽车刹车片的方法,其特征在于,步骤(2)中,所述模压成型是将钢背和混合料放入模具中,施加压力将混合料压制成型。
- 根据权利要求5所述的一种含碱土金属氧化物铝合金制动盘汽车刹车片材料制备汽车刹车片的方法,其特征在于,所述模压成型过程中,模具温度为30-95℃,成型压力为30-45MPa,6分钟内放气3-5次,保压时间为120-240s。
- 根据权利要求2所述的一种含碱土金属氧化物铝合金制动盘汽车刹车片材料制备汽车刹车片的方法,其特征在于,步骤(3)中,所述加热固化为程序式升温固化热处理。
- 根据权利要求7所述的一种含碱土金属氧化物铝合金制动盘汽车刹车片材料制备汽车刹车片的方法,其特征在于,所述程序式升温固化热处理过程中固化温度分别为110℃、130℃、150℃、180℃。
- 根据权利要求7所述的一种含碱土金属氧化物铝合金制动盘汽车刹车片材料制备汽车刹车片的方法,其特征在于,所述固化过程中固化时间为恒温固化时间。
- 根据权利要求7所述的一种含碱土金属氧化物铝合金制动盘汽车刹车片材料制备汽车刹车片的方法,其特征在于,固化温度为110℃时,固化时间为2-3h;固化温度为130℃时,固化时间为5-6h;固化温度为150℃时,固化时间为6-7h;固化温度为180℃时,固化时间为10-12h。
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Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108331863A (zh) * | 2017-01-20 | 2018-07-27 | 福特全球技术公司 | 混合轻质制动盘及其制造方法 |
CN108571545A (zh) * | 2018-07-05 | 2018-09-25 | 天宜上佳(天津)新材料有限公司 | 一种摩擦材料、由其制成的刹车片及制造该刹车片的方法 |
CN110005736A (zh) * | 2019-03-29 | 2019-07-12 | 上海壬丰新材料科技有限公司 | 一种底板可回收的轻量化汽车刹车片及其制备方法 |
CN110730875A (zh) * | 2017-06-14 | 2020-01-24 | 日立化成株式会社 | 摩擦构件、盘式制动器制动衬块和车 |
US20200032868A1 (en) * | 2017-03-06 | 2020-01-30 | Hitachi Chemical Company, Ltd. | Friction material composition, friction material, and friction member |
CN110778629A (zh) * | 2019-10-31 | 2020-02-11 | 上海壬丰新材料科技有限公司 | 一种含卤化物的制动材料及其制备方法与应用 |
JP2021054901A (ja) * | 2019-09-27 | 2021-04-08 | イビデン株式会社 | 摩擦材及びブレーキパッド |
CN112940447A (zh) * | 2021-01-29 | 2021-06-11 | 山东金麒麟股份有限公司 | 一种电动汽车用摩擦材料、刹车片及制备方法 |
US20210222748A1 (en) * | 2018-10-18 | 2021-07-22 | Nisshinbo Brake, Inc. | Friction material |
US20210293291A1 (en) * | 2018-07-24 | 2021-09-23 | Showa Denko Materials Co., Ltd. | Friction member, friction material composition for lower layer material, lower layer material, disc brake pad, and vehicle |
CN113757279A (zh) * | 2021-10-11 | 2021-12-07 | 上海壬丰新材料科技有限公司 | 含碱土金属氧化物铝合金制动盘汽车刹车片及其制备方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001247640A (ja) * | 2000-03-06 | 2001-09-11 | Aisin Seiki Co Ltd | ビスマレイミド変性フェノール樹脂、パッド、シュー |
JP2002097452A (ja) * | 2000-09-20 | 2002-04-02 | Aisin Chem Co Ltd | 摩擦材 |
JP6379249B2 (ja) * | 2011-09-14 | 2018-08-22 | 曙ブレーキ工業株式会社 | 摩擦材 |
CN103122959B (zh) * | 2013-03-08 | 2015-04-15 | 山东金山汽配有限公司 | 高温耐磨陶瓷复合纤维刹车片 |
CN104533998A (zh) * | 2014-12-28 | 2015-04-22 | 福建冠良汽车配件工业有限公司 | 无石棉微金属矿物纤维汽车用盘式刹车片 |
CN106402215A (zh) * | 2016-06-15 | 2017-02-15 | 朱森 | 一种耐磨耐高温汽车刹车片 |
CN109780101B (zh) * | 2018-10-22 | 2022-06-21 | 泰明顿摩擦材料技术(上海)有限公司 | 一种无铜摩擦材料及其制备方法 |
CN111303584A (zh) * | 2020-03-23 | 2020-06-19 | 浙江铭泰汽车零部件有限公司 | 用于刹车片的摩擦材料、刹车片以及刹车片制备方法 |
CN112029231A (zh) * | 2020-09-11 | 2020-12-04 | 湖北飞龙摩擦密封材料股份有限公司 | 一种铝合金复合盘式刹车片及其摩擦材料 |
-
2021
- 2021-10-11 CN CN202111181024.8A patent/CN113757279B/zh active Active
-
2022
- 2022-07-29 WO PCT/CN2022/109038 patent/WO2023060998A1/zh active Application Filing
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108331863A (zh) * | 2017-01-20 | 2018-07-27 | 福特全球技术公司 | 混合轻质制动盘及其制造方法 |
US20200032868A1 (en) * | 2017-03-06 | 2020-01-30 | Hitachi Chemical Company, Ltd. | Friction material composition, friction material, and friction member |
CN110730875A (zh) * | 2017-06-14 | 2020-01-24 | 日立化成株式会社 | 摩擦构件、盘式制动器制动衬块和车 |
CN108571545A (zh) * | 2018-07-05 | 2018-09-25 | 天宜上佳(天津)新材料有限公司 | 一种摩擦材料、由其制成的刹车片及制造该刹车片的方法 |
US20210293291A1 (en) * | 2018-07-24 | 2021-09-23 | Showa Denko Materials Co., Ltd. | Friction member, friction material composition for lower layer material, lower layer material, disc brake pad, and vehicle |
US20210222748A1 (en) * | 2018-10-18 | 2021-07-22 | Nisshinbo Brake, Inc. | Friction material |
CN110005736A (zh) * | 2019-03-29 | 2019-07-12 | 上海壬丰新材料科技有限公司 | 一种底板可回收的轻量化汽车刹车片及其制备方法 |
JP2021054901A (ja) * | 2019-09-27 | 2021-04-08 | イビデン株式会社 | 摩擦材及びブレーキパッド |
CN110778629A (zh) * | 2019-10-31 | 2020-02-11 | 上海壬丰新材料科技有限公司 | 一种含卤化物的制动材料及其制备方法与应用 |
CN112940447A (zh) * | 2021-01-29 | 2021-06-11 | 山东金麒麟股份有限公司 | 一种电动汽车用摩擦材料、刹车片及制备方法 |
CN113757279A (zh) * | 2021-10-11 | 2021-12-07 | 上海壬丰新材料科技有限公司 | 含碱土金属氧化物铝合金制动盘汽车刹车片及其制备方法 |
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