CN111019296A - High-performance brake pad and processing method thereof - Google Patents
High-performance brake pad and processing method thereof Download PDFInfo
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- CN111019296A CN111019296A CN201911294858.2A CN201911294858A CN111019296A CN 111019296 A CN111019296 A CN 111019296A CN 201911294858 A CN201911294858 A CN 201911294858A CN 111019296 A CN111019296 A CN 111019296A
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- 239000012763 reinforcing filler Substances 0.000 claims abstract description 54
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 50
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- 239000010456 wollastonite Substances 0.000 claims abstract description 39
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 39
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- 244000226021 Anacardium occidentale Species 0.000 claims abstract description 25
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- 235000020226 cashew nut Nutrition 0.000 claims abstract description 25
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- 238000003754 machining Methods 0.000 claims description 8
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- 239000003822 epoxy resin Substances 0.000 claims description 6
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- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
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- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
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- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 235000013024 sodium fluoride Nutrition 0.000 claims description 3
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- 239000002245 particle Substances 0.000 claims 2
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- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 8
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 8
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/023—Composite materials containing carbon and carbon fibres or fibres made of carbonizable material
-
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K2003/0856—Iron
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
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- 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
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- F16D2200/0082—Production methods therefor
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- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
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- Materials Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a high-performance brake pad and a processing method thereof, and the high-performance brake pad comprises the following raw materials in parts by weight: the invention relates to the technical field of brake pad production, in particular to cashew nut oil triepoxy resin, silicone resin, polyamide resin, steel fiber, a friction performance regulator, modified wollastonite, modified sepiolite, copper powder, barium sulfate, calcined petroleum coke, sand grain powder, wear-resistant reinforcing filler, high-manganese alloy fiber, corrosion-resistant reinforcing filler and a lubricant. The high-performance brake pad and the processing method thereof can improve the wear resistance and corrosion resistance of the brake pad by modifying the material in the brake pad, and well achieve the purpose of improving the mechanical performance of the brake pad by 2-3 times on the original basis by adding the modified filler, so that the brake pad can be used for a long time under the working conditions of severe environment, well meet the use requirements of people on the performance of the brake pad, and well expand the application range of the brake pad.
Description
Technical Field
The invention relates to the technical field of brake pad production, in particular to a high-performance brake pad and a processing method thereof.
Background
The brake pad is the most critical safety part in the braking system of the automobile, the brake pad plays a decisive role in the quality of all braking effects, the brake pad generally comprises a steel plate, a bonding heat insulation layer and a friction block, wherein the heat insulation layer is made of a non-heat-transfer material and aims at insulating heat; the friction block is composed of friction material and adhesive, and is extruded to generate friction on a brake disc and a brake drum during braking, so that the purpose of decelerating and braking the vehicle is achieved, and from an application object, the brake block is divided into: brake pads for disc brakes, brake pads for drum brakes and brake pads for large trucks; from the composition of the friction material, brake pads are mainly classified into the following categories: asbestos brake pads, semi-metal brake pads, low metal brake pads, NAO formulated brake pads, ceramic brake pads, and NAO ceramic brake pads.
The existing brake pad is mostly made of ceramic fiber or made of semimetal material, although the wear resistance and corrosion resistance of the brake pad are improved to a certain extent, the brake pad can not meet the use requirements of the brake pad even under the working conditions of severe environment, for example, the brake pad on large-scale working vehicles and off-road vehicles with poor road conditions is in high wear and high overlook environment for a long time, so the existing brake pad can not meet the use requirements, the wear resistance and corrosion resistance of the brake pad can not be improved by modifying the material in the brake pad, the purpose of improving the mechanical property of the brake pad by 2-3 times on the original basis by adding modified wollastonite, modified sepiolite, calcined petroleum coke, sand grain powder, wear-resistant reinforced filler, high manganese alloy fiber and corrosion-resistant reinforced filler can not be achieved, the application range of the brake pad cannot be expanded, thereby bringing great inconvenience to the use of the brake pad.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a high-performance brake pad and a processing method thereof, and solves the problems that although the wear resistance and the corrosion resistance of the conventional brake pad are improved to a certain extent, the brake pad can not meet the use requirements of the brake pad when used under the working conditions of severe environment, the wear resistance and the corrosion resistance of the brake pad can not be improved by modifying the materials in the brake pad, the purpose of improving the mechanical performance of the brake pad by 2-3 times on the original basis by adding modified wollastonite, modified sepiolite, calcined petroleum coke, sand grain powder, wear-resistant reinforcing filler, high manganese alloy fiber and corrosion-resistant reinforcing filler can not be achieved, and the application range of the brake pad can not be expanded.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a high-performance brake pad comprises the following raw materials in parts by weight: 10-20 parts of cashew nut oil triepoxy resin, 10-20 parts of silicone resin, 5-10 parts of polyamide resin, 5-10 parts of steel fiber, 3-5 parts of friction performance regulator, 1-3 parts of modified wollastonite, 1-3 parts of modified sepiolite, 1-3 parts of copper powder, 1-3 parts of barium sulfate, 1-3 parts of calcined petroleum coke, 1-3 parts of sand grain powder, 3-5 parts of wear-resistant reinforcing filler, 1-3 parts of high manganese alloy fiber, 3-5 parts of corrosion-resistant reinforcing filler and 1-3 parts of lubricant.
Preferably, the raw materials comprise the following components in parts by weight: 15 parts of cashew nut oil epoxy resin, 15 parts of silicone resin, 7 parts of polyamide resin, 7 parts of steel fiber, 4 parts of friction performance regulator, 2 parts of modified wollastonite, 2 parts of modified sepiolite, 2 parts of copper powder, 2 parts of barium sulfate, 2 parts of calcined petroleum coke, 2 parts of sand grain powder, 4 parts of wear-resistant reinforcing filler, 2 parts of high-manganese alloy fiber, 4 parts of corrosion-resistant reinforcing filler and 2 parts of lubricant.
Preferably, the raw materials comprise the following components in parts by weight: 10 parts of cashew nut oil epoxy resin, 10 parts of silicone resin, 10 parts of polyamide resin, 10 parts of steel fiber, 5 parts of friction performance regulator, 3 parts of modified wollastonite, 3 parts of modified sepiolite, 3 parts of copper powder, 3 parts of barium sulfate, 3 parts of calcined petroleum coke, 3 parts of sand grain powder, 5 parts of wear-resistant reinforcing filler, 3 parts of high-manganese alloy fiber, 5 parts of corrosion-resistant reinforcing filler and 3 parts of lubricant.
Preferably, the raw materials comprise the following components in parts by weight: 20 parts of cashew nut oil epoxy resin, 20 parts of silicone resin, 5 parts of polyamide resin, 5 parts of steel fiber, 3 parts of friction performance regulator, 1 part of modified wollastonite, 1 part of modified sepiolite, 1 part of copper powder, 1 part of barium sulfate, 1 part of calcined petroleum coke, 1 part of sand grain powder, 3 parts of wear-resistant reinforcing filler, 1 part of high-manganese alloy fiber, 3 parts of corrosion-resistant reinforcing filler and 1 part of lubricant.
Preferably, the friction performance modifier is one or more of calcium sulfate, sodium fluoride, black iron, graphite or molybdenum disulfide.
Preferably, the modified wollastonite is prepared by mixing wollastonite with fine particles modified with stearic acid having a diameter of 0.018mm, and the modified sepiolite is prepared by mixing fibrous sepiolite with coarse particles modified with stearic acid having a diameter of 0.28 mm.
Preferably, the wear-resistant reinforcing filler is one or a combination of carborundum, silicon nitride, toughened zirconia or toughened alumina.
Preferably, the corrosion-resistant reinforcing filler is one or more of polytetrafluoroethylene fibers, carbon fibers or iron oxide powder.
The invention also discloses a processing method of the high-performance brake pad, which specifically comprises the following steps:
s1, weighing the ingredients: firstly, respectively measuring the cashew nut oil triepoxy resin, the silicone resin, the polyamide resin, the steel fiber, the friction performance regulator, the modified wollastonite, the modified sepiolite, the copper powder, the barium sulfate, the calcined petroleum coke, the sand grain powder, the wear-resistant reinforcing filler, the high-manganese alloy fiber, the corrosion-resistant reinforcing filler and the lubricant in required weight parts by using proportioning equipment, and storing for later use;
s2, crushing and screening: the cashew nut oil triepoxy resin, the silicon resin, the polyamide resin, the steel fiber, the friction performance regulator, the modified wollastonite, the modified sepiolite, the copper powder, the barium sulfate, the calcined petroleum coke, the sand grain powder, the wear-resistant reinforced filler, the high manganese alloy fiber and the corrosion-resistant reinforced filler which are measured in the step S1 are sequentially subjected to full crushing treatment through crushing and screening equipment, and are screened through a screen with 200-mesh and 300-mesh;
s3, mixing of raw materials: transferring the raw materials crushed and screened in the step S2 to mixing equipment in sequence, adding the lubricant measured in the step S1 into the mixing equipment, starting the mixing equipment, and stirring at the rotation speed of 700-900r/min for 1-2h to obtain a mixed material;
s4, hot-press forming of the brake pad: transferring the mixed material prepared in the step S3 to hot-press molding equipment, starting a heating assembly to heat the mixed material to 190-;
s5, heat treatment of the brake pad: stripping the brake pad formed in the step S4, removing impurities on the surface of the brake pad through a cleaning tool, transferring the cleaned brake pad into heat treatment equipment, heating to 140-150 ℃, treating for 5-7h, taking out, and air cooling to 25-33 ℃ to complete the heat treatment of the brake pad;
s6, post-processing: and (5) sequentially carrying out machining, grinding and surface treatment on the brake pad subjected to the heat treatment in the step S5 to obtain a finished brake pad.
(III) advantageous effects
The invention provides a high-performance brake pad and a processing method thereof. Compared with the prior art, the method has the following beneficial effects:
(1) the high-performance brake pad and the processing method thereof comprise the following raw materials in parts by weight: the cashew nut oil triepoxy resin, the silicone resin, the polyamide resin, the steel fiber, the friction performance regulator, the modified wollastonite, the modified sepiolite, the copper powder, the barium sulfate, the calcined petroleum coke, the sand grain powder, the wear-resistant reinforcing filler, the high-manganese alloy fiber, the corrosion-resistant reinforcing filler and the lubricant can realize the improvement of the wear resistance and the corrosion resistance of the brake pad by modifying the materials in the brake pad, well achieve the aim of improving the mechanical performance of the brake pad by 2-3 times on the original basis by adding the modified wollastonite, the modified sepiolite, the calcined petroleum coke, the sand grain powder, the wear-resistant reinforcing filler, the high-manganese alloy fiber and the corrosion-resistant reinforcing filler, ensure that the brake pad can be used for a long time under the working conditions of severe environments, well meet the use requirements of people on the performance of the brake pad, and well expand the application range of the brake pad, thereby bringing great benefit to the use of the brake block.
(2) The high-performance brake pad and the processing method thereof specifically comprise the following steps: s1, weighing the ingredients: firstly, respectively measuring the cashew nut oil triepoxy resin, the silicone resin, the polyamide resin, the steel fiber, the friction performance regulator, the modified wollastonite, the modified sepiolite, the copper powder, the barium sulfate, the calcined petroleum coke, the sand grain powder, the wear-resistant reinforcing filler, the high-manganese alloy fiber, the corrosion-resistant reinforcing filler and the lubricant in required weight ratio by using proportioning equipment, storing for later use, and S2, crushing and screening: and (2) sequentially carrying out full crushing treatment on the cashew nut oil triepoxide resin, the silicon resin, the polyamide resin, the steel fiber, the friction performance regulator, the modified wollastonite, the modified sepiolite, the copper powder, the barium sulfate, the calcined petroleum coke, the sand grain powder, the wear-resistant reinforced filler, the high manganese alloy fiber and the corrosion-resistant reinforced filler which are measured in the step S1 through crushing and screening equipment, screening through a 200-mesh and 300-mesh screen, and mixing S3 raw materials: and (2) sequentially transferring the raw materials crushed and screened in the step (S2) to mixing equipment, adding the lubricant measured in the step (S1) into the mixing equipment, starting the mixing equipment, and stirring at the rotating speed of 700-900r/min for 1-2h to obtain a mixed material, wherein the step (S4) comprises the following steps of: transferring the mixed material prepared in the step S3 to hot-press molding equipment, starting a heating assembly to heat the mixed material to 190-: stripping the brake pad formed in the step S4, removing impurities on the surface of the brake pad through a cleaning tool, transferring the cleaned brake pad into heat treatment equipment, heating to 140-150 ℃, treating for 5-7h, taking out, air-cooling to 25-33 ℃, and finishing the heat treatment of the brake pad, wherein the step S6 is as follows: the brake pad subjected to the heat treatment in the step S5 is subjected to machining, grinding and surface treatment in sequence, so that a finished brake pad product can be obtained, the machining method is simple, complex machining technology is not required for production, the production cost of brake pad production enterprises is saved, and the method is very beneficial to the brake pad production enterprises.
Drawings
FIG. 1 is a flow chart of the production method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the embodiment of the present invention provides three technical solutions: a high-performance brake pad and a processing method thereof specifically comprise the following embodiments:
example 1
A high-performance brake pad comprises the following raw materials in parts by weight: 15 parts of cashew nut oil triepoxy resin, 15 parts of silicone resin, 7 parts of polyamide resin, 7 parts of steel fiber, 4 parts of friction performance regulator, 2 parts of modified wollastonite, 2 parts of modified sepiolite, 2 parts of copper powder, 2 parts of barium sulfate, 2 parts of calcined petroleum coke, 2 parts of sand grain powder, 4 parts of wear-resistant reinforcing filler, 2 parts of high manganese alloy fiber, 4 parts of corrosion-resistant reinforcing filler and 2 parts of lubricant, wherein the friction performance regulator is a composition of calcium sulfate, sodium fluoride, black iron, graphite and molybdenum disulfide, the modified wollastonite is prepared by mixing stearic acid modified fine particles with the diameter of 0.018mm with the wollastonite, the modified sepiolite is prepared by mixing stearic acid modified coarse particles with the diameter of 0.28mm with fibrous sepiolite, the wear-resistant reinforcing filler is a composition of carborundum, silicon nitride, toughened zirconia and toughened aluminum oxide, the corrosion-resistant reinforcing filler is polytetrafluoroethylene fiber, A combination of carbon fibers and iron oxide powder.
A processing method of a high-performance brake pad specifically comprises the following steps:
s1, weighing the ingredients: firstly, respectively measuring the cashew nut oil triepoxy resin, the silicone resin, the polyamide resin, the steel fiber, the friction performance regulator, the modified wollastonite, the modified sepiolite, the copper powder, the barium sulfate, the calcined petroleum coke, the sand grain powder, the wear-resistant reinforcing filler, the high-manganese alloy fiber, the corrosion-resistant reinforcing filler and the lubricant in required weight parts by using proportioning equipment, and storing for later use;
s2, crushing and screening: the cashew nut oil triepoxy resin, the silicone resin, the polyamide resin, the steel fiber, the friction performance regulator, the modified wollastonite, the modified sepiolite, the copper powder, the barium sulfate, the calcined petroleum coke, the sand grain powder, the wear-resistant reinforced filler, the high-manganese alloy fiber and the corrosion-resistant reinforced filler which are measured in the step S1 are subjected to full crushing treatment sequentially through crushing and screening equipment, and are screened through a 250-mesh screen;
s3, mixing of raw materials: sequentially transferring the raw materials crushed and screened in the step S2 to mixing equipment, adding the lubricant measured in the step S1 into the mixing equipment, starting the mixing equipment, and stirring at the rotating speed of 800r/min for 1.5h to obtain a mixed material;
s4, hot-press forming of the brake pad: transferring the mixed material prepared in the step S3 to hot-press molding equipment, starting a heating assembly to heat the mixed material to 195 ℃ to melt the mixed material into a molten state, pumping the molten material into a forming die through a pumping mechanism, starting a pressing mechanism to press the molten material to form, then reducing the temperature of the molten material to 125 ℃ through a cooling assembly, resetting a pressure head and pressing down, repeating the operation for 2 times, cooling to 70 ℃ to solidify and form the mixed material, and tightly pressing and combining molecules in the mixed material;
s5, heat treatment of the brake pad: stripping the brake pad formed in the step S4, removing impurities on the surface of the brake pad through a cleaning tool, transferring the cleaned brake pad into heat treatment equipment, heating to 145 ℃, taking out the brake pad after treatment for 6 hours, and air-cooling to 30 ℃ to complete heat treatment of the brake pad;
s6, post-processing: and (5) sequentially carrying out machining, grinding and surface treatment on the brake pad subjected to the heat treatment in the step S5 to obtain a finished brake pad.
Example 2
A high-performance brake pad comprises the following raw materials in parts by weight: 10 parts of cashew nut oil triepoxy resin, 10 parts of silicone resin, 10 parts of polyamide resin, 10 parts of steel fiber, 5 parts of a friction performance regulator, 3 parts of modified wollastonite, 3 parts of modified sepiolite, 3 parts of copper powder, 3 parts of barium sulfate, 3 parts of calcined petroleum coke, 3 parts of sand grain powder, 5 parts of wear-resistant reinforcing filler, 3 parts of high-manganese alloy fiber, 5 parts of corrosion-resistant reinforcing filler and 3 parts of lubricant, wherein the friction performance regulator is calcium sulfate, the modified wollastonite is prepared by mixing stearic acid modified fine particles with the diameter of 0.018mm and the wollastonite, the modified sepiolite is prepared by mixing stearic acid modified coarse particles with the diameter of 0.28mm and fibrous sepiolite, the wear-resistant reinforcing filler is carborundum, and the corrosion-resistant reinforcing filler is polytetrafluoroethylene fiber.
A processing method of a high-performance brake pad specifically comprises the following steps:
s1, weighing the ingredients: firstly, respectively measuring the cashew nut oil triepoxy resin, the silicone resin, the polyamide resin, the steel fiber, the friction performance regulator, the modified wollastonite, the modified sepiolite, the copper powder, the barium sulfate, the calcined petroleum coke, the sand grain powder, the wear-resistant reinforcing filler, the high-manganese alloy fiber, the corrosion-resistant reinforcing filler and the lubricant in required weight parts by using proportioning equipment, and storing for later use;
s2, crushing and screening: the cashew nut oil triepoxy resin, the silicone resin, the polyamide resin, the steel fiber, the friction performance regulator, the modified wollastonite, the modified sepiolite, the copper powder, the barium sulfate, the calcined petroleum coke, the sand grain powder, the wear-resistant reinforced filler, the high-manganese alloy fiber and the corrosion-resistant reinforced filler which are measured in the step S1 are subjected to full crushing treatment sequentially through crushing and screening equipment, and are screened through a 200-mesh screen;
s3, mixing of raw materials: sequentially transferring the raw materials crushed and screened in the step S2 to mixing equipment, adding the lubricant measured in the step S1 into the mixing equipment, starting the mixing equipment, and stirring at the rotating speed of 700r/min for 1h to obtain a mixed material;
s4, hot-press forming of the brake pad: transferring the mixed material prepared in the step S3 to hot-press molding equipment, starting a heating assembly to heat the mixed material to 190 ℃ to melt the mixed material into a molten state, pumping the molten material into a forming die through a pumping mechanism, starting a pressing mechanism to press the molten material to form, then reducing the temperature of the molten material to 120 ℃ through a cooling assembly, resetting a pressure head and pressing down, repeating the operation for 3 times, reducing the temperature to 65 ℃ to solidify and form the mixed material, and tightly pressing and combining molecules in the mixed material;
s5, heat treatment of the brake pad: stripping the brake pad formed in the step S4, removing impurities on the surface of the brake pad through a cleaning tool, transferring the cleaned brake pad into heat treatment equipment, heating to 140 ℃, taking out the brake pad after treatment for 5 hours, and air-cooling to 25 ℃ to complete heat treatment of the brake pad;
s6, post-processing: and (5) sequentially carrying out machining, grinding and surface treatment on the brake pad subjected to the heat treatment in the step S5 to obtain a finished brake pad.
Example 3
A high-performance brake pad comprises the following raw materials in parts by weight: 20 parts of cashew nut oil triepoxy resin, 20 parts of silicone resin, 5 parts of polyamide resin, 5 parts of steel fiber, 3 parts of a friction performance regulator, 1 part of modified wollastonite, 1 part of modified sepiolite, 1 part of copper powder, 1 part of barium sulfate, 1 part of calcined petroleum coke, 1 part of sand grain powder, 3 parts of wear-resistant reinforcing filler, 1 part of high manganese alloy fiber, 3 parts of corrosion-resistant reinforcing filler and 1 part of lubricant, wherein the friction performance regulator is molybdenum disulfide, the modified wollastonite is prepared by mixing stearic acid modified fine particles with the diameter of 0.018mm and the wollastonite, the modified sepiolite is prepared by mixing stearic acid modified coarse particles with the diameter of 0.28mm and fibrous sepiolite, the wear-resistant reinforcing filler is toughened aluminum oxide, and the corrosion-resistant reinforcing filler is iron oxide powder.
A processing method of a high-performance brake pad specifically comprises the following steps:
s1, weighing the ingredients: firstly, respectively measuring the cashew nut oil triepoxy resin, the silicone resin, the polyamide resin, the steel fiber, the friction performance regulator, the modified wollastonite, the modified sepiolite, the copper powder, the barium sulfate, the calcined petroleum coke, the sand grain powder, the wear-resistant reinforcing filler, the high-manganese alloy fiber, the corrosion-resistant reinforcing filler and the lubricant in required weight parts by using proportioning equipment, and storing for later use;
s2, crushing and screening: the cashew nut oil triepoxy resin, the silicone resin, the polyamide resin, the steel fiber, the friction performance regulator, the modified wollastonite, the modified sepiolite, the copper powder, the barium sulfate, the calcined petroleum coke, the sand grain powder, the wear-resistant reinforced filler, the high-manganese alloy fiber and the corrosion-resistant reinforced filler which are measured in the step S1 are subjected to full crushing treatment sequentially through crushing and screening equipment, and are screened through a 300-mesh screen;
s3, mixing of raw materials: sequentially transferring the raw materials crushed and screened in the step S2 to mixing equipment, adding the lubricant measured in the step S1 into the mixing equipment, starting the mixing equipment, and stirring at the rotating speed of 900r/min for 2 hours to obtain a mixed material;
s4, hot-press forming of the brake pad: transferring the mixed material prepared in the step S3 to hot-press molding equipment, starting a heating assembly to heat the mixed material to 200 ℃ to melt the mixed material into a molten state, pumping the molten material into a forming die through a pumping mechanism, starting a pressing mechanism to press the molten material to form, then reducing the temperature of the molten material to 130 ℃ through a cooling assembly, resetting a pressure head and pressing down, repeating the operation for 2 times, reducing the temperature to 75 ℃ to solidify and form the mixed material, and tightly pressing and combining molecules in the mixed material;
s5, heat treatment of the brake pad: stripping the brake pad formed in the step S4, removing impurities on the surface of the brake pad through a cleaning tool, transferring the cleaned brake pad into heat treatment equipment, heating to 150 ℃, taking out the brake pad after treatment for 7 hours, and air-cooling to 33 ℃ to complete heat treatment of the brake pad;
s6, post-processing: and (5) sequentially carrying out machining, grinding and surface treatment on the brake pad subjected to the heat treatment in the step S5 to obtain a finished brake pad.
Test experiments
A certain automobile accessory production enterprise respectively prepares three groups of high-performance brake pads by adopting the processing method, meanwhile, selects the conventional brake pads on the market as a control group, then respectively performs wear resistance and corrosion resistance test experiments on the four groups of brake pads, respectively installs the four groups of brake pads on a wear resistance testing machine, then starts the testing machine, applies the acting force with the same magnitude on each group of brake pads, performs friction test for 4-5h, then records the wear loss of each group of brake pads, simultaneously puts the four groups of brake pads into the same corrosive liquid for soaking for 5-6h, then takes out and observes the condition of each group of brake pads, and the experimental results are shown in table 1.
Table 1 test experiment data table
As can be seen from table 1, the high performance brake pads prepared by the preparation methods of examples 1 to 3 of the present invention have the smallest wear loss and the surfaces thereof have no change during corrosion resistance testing, so example 1 is the best solution, while the high performance brake pads prepared by the preparation methods of examples 2 and 3 of the present invention have smaller wear loss than the control group, and have no change during corrosion resistance testing, the wear loss of the control group is larger than that of the brake pads of examples 1 to 3, and the surfaces thereof turn yellow and have fine burrs during corrosion resistance testing, so that the present invention can improve the wear resistance and corrosion resistance of the brake pads by modifying the materials inside the brake pads, and well achieve the purpose of improving the wear resistance and corrosion resistance of the brake pads by adding modified wollastonite, modified sepiolite, calcined petroleum coke, sand grain powder, wear resistance reinforcing filler, high manganese alloy fiber and corrosion resistance reinforcing filler, the mechanical property of the brake pad is improved by 2-3 times on the original basis, so that the brake pad can be used for a long time under the working conditions of severe environment, the use requirements of people on the performance of the brake pad are well met, the application range of the brake pad is well expanded, and great benefit is brought to the use of the brake pad.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A high-performance brake pad is characterized in that: the raw materials comprise the following components in parts by weight: 10-20 parts of cashew nut oil triepoxy resin, 10-20 parts of silicone resin, 5-10 parts of polyamide resin, 5-10 parts of steel fiber, 3-5 parts of friction performance regulator, 1-3 parts of modified wollastonite, 1-3 parts of modified sepiolite, 1-3 parts of copper powder, 1-3 parts of barium sulfate, 1-3 parts of calcined petroleum coke, 1-3 parts of sand grain powder, 3-5 parts of wear-resistant reinforcing filler, 1-3 parts of high manganese alloy fiber, 3-5 parts of corrosion-resistant reinforcing filler and 1-3 parts of lubricant.
2. The high performance brake pad of claim 1, wherein: the raw materials comprise the following components in parts by weight: 15 parts of cashew nut oil epoxy resin, 15 parts of silicone resin, 7 parts of polyamide resin, 7 parts of steel fiber, 4 parts of friction performance regulator, 2 parts of modified wollastonite, 2 parts of modified sepiolite, 2 parts of copper powder, 2 parts of barium sulfate, 2 parts of calcined petroleum coke, 2 parts of sand grain powder, 4 parts of wear-resistant reinforcing filler, 2 parts of high-manganese alloy fiber, 4 parts of corrosion-resistant reinforcing filler and 2 parts of lubricant.
3. The high performance brake pad of claim 1, wherein: the raw materials comprise the following components in parts by weight: 10 parts of cashew nut oil epoxy resin, 10 parts of silicone resin, 10 parts of polyamide resin, 10 parts of steel fiber, 5 parts of friction performance regulator, 3 parts of modified wollastonite, 3 parts of modified sepiolite, 3 parts of copper powder, 3 parts of barium sulfate, 3 parts of calcined petroleum coke, 3 parts of sand grain powder, 5 parts of wear-resistant reinforcing filler, 3 parts of high-manganese alloy fiber, 5 parts of corrosion-resistant reinforcing filler and 3 parts of lubricant.
4. The high performance brake pad of claim 1, wherein: the raw materials comprise the following components in parts by weight: 20 parts of cashew nut oil epoxy resin, 20 parts of silicone resin, 5 parts of polyamide resin, 5 parts of steel fiber, 3 parts of friction performance regulator, 1 part of modified wollastonite, 1 part of modified sepiolite, 1 part of copper powder, 1 part of barium sulfate, 1 part of calcined petroleum coke, 1 part of sand grain powder, 3 parts of wear-resistant reinforcing filler, 1 part of high-manganese alloy fiber, 3 parts of corrosion-resistant reinforcing filler and 1 part of lubricant.
5. The high-performance brake pad according to any one of claims 1 to 4, wherein: the friction performance regulator is one or the combination of more of calcium sulfate, sodium fluoride, black iron, graphite or molybdenum disulfide.
6. The high-performance brake pad according to any one of claims 1 to 4, wherein: the modified wollastonite was obtained by mixing wollastonite with fine stearic acid-modified particles having a diameter of 0.018mm, and the modified sepiolite was obtained by mixing fibrous sepiolite with coarse stearic acid-modified particles having a diameter of 0.28 mm.
7. The high-performance brake pad according to any one of claims 1 to 4, wherein: the wear-resistant reinforcing filler is one or a combination of more of carborundum, silicon nitride, toughened zirconia or toughened aluminum oxide.
8. The high-performance brake pad according to any one of claims 1 to 4, wherein: the corrosion-resistant reinforcing filler is one or a combination of polytetrafluoroethylene fibers, carbon fibers or iron oxide powder.
9. A method for processing a high-performance brake pad according to any one of claims 1 to 4, wherein the method comprises the following steps: the method specifically comprises the following steps:
s1, weighing the ingredients: firstly, respectively measuring the cashew nut oil triepoxy resin, the silicone resin, the polyamide resin, the steel fiber, the friction performance regulator, the modified wollastonite, the modified sepiolite, the copper powder, the barium sulfate, the calcined petroleum coke, the sand grain powder, the wear-resistant reinforcing filler, the high-manganese alloy fiber, the corrosion-resistant reinforcing filler and the lubricant in required weight parts by using proportioning equipment, and storing for later use;
s2, crushing and screening: the cashew nut oil triepoxy resin, the silicon resin, the polyamide resin, the steel fiber, the friction performance regulator, the modified wollastonite, the modified sepiolite, the copper powder, the barium sulfate, the calcined petroleum coke, the sand grain powder, the wear-resistant reinforced filler, the high manganese alloy fiber and the corrosion-resistant reinforced filler which are measured in the step S1 are sequentially subjected to full crushing treatment through crushing and screening equipment, and are screened through a screen with 200-mesh and 300-mesh;
s3, mixing of raw materials: transferring the raw materials crushed and screened in the step S2 to mixing equipment in sequence, adding the lubricant measured in the step S1 into the mixing equipment, starting the mixing equipment, and stirring at the rotation speed of 700-900r/min for 1-2h to obtain a mixed material;
s4, hot-press forming of the brake pad: transferring the mixed material prepared in the step S3 to hot-press molding equipment, starting a heating assembly to heat the mixed material to 190-;
s5, heat treatment of the brake pad: stripping the brake pad formed in the step S4, removing impurities on the surface of the brake pad through a cleaning tool, transferring the cleaned brake pad into heat treatment equipment, heating to 140-150 ℃, treating for 5-7h, taking out, and air cooling to 25-33 ℃ to complete the heat treatment of the brake pad;
s6, post-processing: and (5) sequentially carrying out machining, grinding and surface treatment on the brake pad subjected to the heat treatment in the step S5 to obtain a finished brake pad.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114874615A (en) * | 2022-06-10 | 2022-08-09 | 金旸（厦门）新材料科技有限公司 | Wear-resistant nylon material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114874615A (en) * | 2022-06-10 | 2022-08-09 | 金旸（厦门）新材料科技有限公司 | Wear-resistant nylon material and preparation method thereof |
| CN114874615B (en) * | 2022-06-10 | 2023-05-09 | 金旸（厦门）新材料科技有限公司 | Wear-resistant nylon material and preparation method thereof |
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Application publication date: 20200417 |