CN208914713U - A kind of conductive self-lubricating composite plate of bearing - Google Patents

A kind of conductive self-lubricating composite plate of bearing Download PDF

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Publication number
CN208914713U
CN208914713U CN201821359801.7U CN201821359801U CN208914713U CN 208914713 U CN208914713 U CN 208914713U CN 201821359801 U CN201821359801 U CN 201821359801U CN 208914713 U CN208914713 U CN 208914713U
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self
bearing
metal
composite plate
lubricating
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张蓉平
孙志华
陆忠泉
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ZHEJIANG CHANGSHENG SLIDING BEARING CO Ltd
Zhejiang Changsheng Sliding Bearings Co Ltd
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ZHEJIANG CHANGSHENG SLIDING BEARING CO Ltd
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Priority to PCT/CN2019/100580 priority patent/WO2020038263A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/18Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/10Interconnection of layers at least one layer having inter-reactive properties
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18Manufacture of films or sheets
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/04Carbon
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00Use of ingredients characterised by shape
    • C08K7/02Fibres or whiskers
    • C08K7/04Fibres or whiskers inorganic
    • C08K7/06Elements
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00Use of ingredients characterised by shape
    • C08K7/22Expanded, porous or hollow particles
    • C08K7/24Expanded, porous or hollow particles inorganic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/26Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
    • C08L23/28Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/16Homopolymers or copolymers or vinylidene fluoride
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04Mixtures of base-materials and additives

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
  • Lubricants (AREA)

Abstract

The conductive self-lubricating composite plate of a kind of bearing a comprising metal-based layer, one layer of conductive self-lubricating film and adhesive layer.Offer multiple equally distributed sunk structures, depth 0.02mm~0.10mm of the sunk structure on the metal-based layer, the area of sunk structure accounts for the 30%~50% of the area of the metal-based layer, the adhesive layer with a thickness of 0.01mm~0.05mm.It is described conduction self-lubricating film with a thickness of 0.1mm~0.5mm.The polymer is selected from one or more of fluoropolymer and its weight ratio is 70%~80%, the weight ratio of carbon black is 4%~5%, the weight ratio of the carbon nanotube is 1%~2%, the weight ratio of the carbon fiber is 15%~20%, the weight ratio of the solid lubricant is 0~9%, and the length of the carbon nanotube is 3 μm~5 μm.This bearing has the function of conduction with conductive self-lubricating composite plate, meets the requirement of electrophoresis process, and then the bearing can satisfy the requirement of auto industry, especially painting dressing automobiles field with conductive self-lubricating composite plate.

Description

A kind of conductive self-lubricating composite plate of bearing
Technical field
The utility model belongs to sliding bearing technical field, and bearing of especially a kind of use on sliding bearing is conductive Self-lubricating composite plate.
Background technique
Non-maintaining cunning with layer structure (including metal support material and the middle layer being applied thereto and sliding layer) Dynamic bearing passes through diversified forms already, and is applied to multiple technical fields, such as automobile work Journey field.
But now with the development of auto industry, integrated level is also higher and higher, those be applied to automobile door hinge, Self-lubricating bearing in the low speed medium load occasion such as seat hinge, front and back cover hinge, it is muting in addition to feel requires comfortably It is required that it is outer, also require the requirement of its conductive energy.Requirement of the requirement original of the electric conductivity from auto industry.Because advanced Painting dressing automobiles especially car coating technology and equipment quickly applied in China.In order to meet client to painting dressing automobiles group Part process of surface treatment, that is, electrophoretic painting demand specially proposes wanting for electric conductivity to the Pivoting bearing at automotive hinge position It asks, therefore the requirement to the functional layer of the self-lubricating bearing of the application then includes at least constant torque, flexible, self-lubricating and tool It has conductivity.
Utility model content
There is good mechanical property in view of this, the present invention provides a kind of, creep-resistant property and lower The conductive self-lubricating composite plate of the bearing of resistance value, to meet above-mentioned requirements.
A kind of conductive self-lubricating composite plate of bearing, is used in electrophoresis process comprising a metal-based layer, one layer Conductive self-lubricating film on the metal-based layer is set, and for bonding the viscous of the metal-based layer and conductive self-lubricating film Close layer.Offer multiple equally distributed sunk structures on the metal-based layer, the depth 0.02mm of the sunk structure~ 0.10mm, the area of sunk structure account for the 30%~50% of the area of the metal-based layer, the adhesive layer with a thickness of 0.01mm~0.05mm.It is described conduction self-lubricating film with a thickness of 0.1mm~0.5mm.The conduction self-lubricating film passes through described Sunk structure is conducted with the metal-based layer.The conduction self-lubricating film is mainly by fluoropolymer, carbon black, carbon nanotube, carbon Fiber and solid lubricant composition.The polymer is selected from one or more of fluoropolymer and its weight ratio is 70% ~80%, the weight ratio of carbon black is 4%~5%, and the weight ratio of the carbon nanotube is 1%~2%, the weight of the carbon fiber Than being 15%~20%, the weight ratio of the solid lubricant is 0~9%, and the length of the carbon nanotube is 3 μm~5 μm.
Further, the conductive self-lubricating film with a thickness of 0.15mm-0.25mm.
Further, the polymer is selected from polytetrafluoroethylene (PTFE), fluorinated ethylene-propylene, polyvinylidene fluoride, polychlorostyrene three Vinyl fluoride, ethylene chlorotrifluoroethylene, perfluoroalkoxy and their combination.
Further, the fluoropolymer is perfluoroalkyl ethylene oxy, modified tetrafluoro ethylene-hexafluoropropene, modified perfluor Alkoxy vinyl, ethylene-tetrafluoroethylene, tetrafluoroethylene-perfluoro, modified Teflon, Kynoar, Ethylene-chlorotrifluoro Ethylene.
Further, the solid lubricant be selected from glass fibre, carbon fiber, silicon, graphite, polyether-ether-ketone, molybdenum disulfide, Aromatic polyester, carbon particle, bronze, fluoropolymer, thermoplasticity filler, mineral filler and any combination of them.
Further, the fluoropolymer at least accounts for 72%, 78% or the 80% of the weight of the conductive self-lubricating film.
Further, the adhesive layer is made of fluoropolymer, and the fluoropolymer is copolymerized selected from ethylene-tetrafluoroethylene Object, fluorinated ethylene propylene copolymer, ethylene fluorinated ethylene-propylenes trimer, polychlorotrifluoroethylene, ethylene chlorine trichloro ethylene, or Their any combination of person.
Further, the sunk structure is latticed, and the depth of the grid is depth 0.02-0.05mm.
Further, the sunk structure is round pool shape, and the depth of the round pool is depth 0.05-0.10mm.
Compared with prior art, conductive self-lubricating of the bearing provided by the utility model in conductive self-lubricating composite plate Film has used carbon black and carbon nanotube, and it is used in mixed way, and reduces the cost of integral material, is conducive to promote the use of, and is somebody's turn to do It is microcosmic upper to be formd in the conduction self-lubricating film well by setting the carbon black, carbon nanotube and the ratio of carbon fiber Conductive network so that the macroscopically conduction self-lubricating film resistance value less than 103Ohms cm, so as to reach The requirement of electrophoresis process, simultaneously as the presence of the sunk structure, and the adhesive layer with a thickness of 0.01mm~ 0.05mm, allow composite pressure be 2MPa~10MPa when by the sunk structure by the adhesive layer puncture to Conduct the conductive self-lubricating film with metal-based layer, while the other parts of the adhesive layer also act the work of bonding With meeting the requirement of electrophoresis process, in turn so that the monolith bearing has the function of conduction with conductive self-lubricating composite plate The bearing can satisfy the requirement of auto industry, especially painting dressing automobiles field with conductive self-lubricating composite plate.
Detailed description of the invention
Fig. 1 is the decomposition texture schematic diagram of the conductive self-lubricating composite plate of bearing provided by the utility model.
Partial enlarged view of the conductive self-lubricating composite plate of the bearing that Fig. 2 is Fig. 1 at A.
Bearing conductive self-lubricating composite plate structural schematic diagram with conduction self-lubricating film of the Fig. 3 by Fig. 1.
The preparation method flow chart of conduction self-lubricating film possessed by the conductive self-lubricating composite plate of the bearing that Fig. 4 is Fig. 1.
The preparation method flow chart of the conductive self-lubricating composite plate of the bearing that Fig. 5 is Fig. 1.
Specific embodiment
Specific embodiment of the utility model is further elaborated below.It should be understood that herein to this The explanation of utility model embodiment is not used to limit the protection scope of the utility model.
As shown in Figure 1, its structural schematic diagram for the conductive self-lubricating composite plate of bearing provided by the utility model.It is described The conductive self-lubricating composite plate of bearing includes a metal-based layer 10, and one layer of conduction being arranged on the metal-based layer 10 is moistened certainly Synovial membrane 11, and the adhesive layer 12 for bonding the metal-based layer 10 with conductive self-lubricating film 11.It is envisioned that described Bearing conduction self-lubricating composite plate can also include other some functional modules, and such as use bearing in automotive field is used Conductive self-lubricating composite plate circle song is at cylinder by outside should also be provided with package assembly, such as clamping ring, should be this Technology known by the technical staff of field, is no longer described in detail one by one herein.
Fig. 2 is please combined together, and the metal-based layer 10 is also used for being arranged for carrying the conductive self-lubricating film 11 Other some mounting structures, such as bearing outer ring.The metal-based layer 10 can be by mild steel, aluminium, aluminium alloy, copper, copper conjunction Gold or other kinds of metal and its alloy are made, and in the present embodiment, the metal-based layer 10 is made of mild steel. Multiple equally distributed sunk structures 101 are offered on the metal-based layer 10.The sunk structure 101 can be latticed. The latticed sunk structure 101 may include a plurality of cross one another V-shaped groove or U-lag, or be gone out by lathe vehicle Section be rectangular slot.The sunk structure 101 can also be circular pit or other shapes of hole.The V-shaped groove or U-shaped Slot and circular pit can use reticulate pattern roll pressing to form and either be handled by surface laser.The sunk structure 101 depth can be 0.02mm~0.10mm, and specifically, when the sunk structure 101 is latticed, depth can be 0.02~0.05mm, when the sunk structure 101 is circular pit, depth can be 0.05mm~0.10mm.The recess The area of structure 101 accounts for the 30%~50% of the area of the metal-based layer 10, cannot be very little, will affect very little conductive from profit Electric conductivity between synovial membrane 11 and metal-based layer 10, and it is too many, and will affect between conductive self-lubricating film 11 and metal-based layer 10 Bonding intensity.Therefore, described based on the conductive material of self-lubricating film 11 and the thickness of thickness and the adhesive layer 12 The thickness of the area of metal-based layer 10 described in the area point of sunk structure should be 30%~50%.
As shown in figure 3, the conduction self-lubricating film 11 is mainly by fluoropolymer 111, carbon black 112, carbon nanotube 113, carbon Fiber 114 and solid lubricant 115 form.It is envisioned that according to actual performance requirement, the conduction self-lubricating Film 11 can also include other materials, such as filler.
The fluoropolymer 111 is fluorine-containing polymer, can be selected from fluorine-containing one or more of the polymer. The fluorine-containing polymer can for polytetrafluoroethylene (PTFE) (PTFE), fluorinated ethylene-propylene (FEP), polyvinylidene fluoride (PVDF), Polychlorotrifluoroethylene (PCTFE), ethylene chlorotrifluoroethylene (ECTFE), perfluoroalkoxy (PFA) or their times What is combined.The fluorine-containing polymer can also be perfluoroalkyl ethylene oxy, modified tetrafluoro ethylene-hexafluoropropene, modified perfluor Alkoxy vinyl, ethylene-tetrafluoroethylene, tetrafluoroethylene-perfluoro, modified Teflon, Kynoar, Ethylene-chlorotrifluoro One or more of ethylene.When selecting any one or the combination of several of them of above-mentioned material, the weight of the fluoropolymer 111 Amount is than being 70%~80%.Preferably, the fluoropolymer 111 at least account for the weight of the conductive self-lubricating film 72%, 78% or 80%, and the fluoropolymer 111 is polytetrafluoroethylene (PTFE) (PTFE).
The carbon black 112 is to generally refer to carbon simple substance particle, burns insufficient in carbon, will be detached from molecule, shape At carbon black 112.In carbon black 112, carbon atom is arranged similarly to graphite, forms hexagon plane, usual 3~5 this The level of sample forms a crystallite, due in each graphite level of 112 crystallite of carbon black, what the arrangement of carbon atom was ordered into, and The arrangement of carbon atom is again unordered between adjacent level, so being called meta anthracite crystal.It could be theoretically argued that 112 loading of carbon black Bigger, the density of carbon black particle or carbon black particle aggregate in dispersity is also bigger, and interparticle average distance is smaller, The probability to contact with each other is higher, and the conductive path that carbon black particle or carbon black particle aggregate are formed is also more.The height of opposed polarity Polymers and the polarity that carbon black 112 forms co-mixing system are bigger, and 112 critical volume fraction of carbon black is bigger, it is meant that system is led Electrically decline, because very strong polar group is contained on 112 surface of carbon black, matrix polarity is big, and effect enhancing, at this moment intensity increases, But the agglutination for interfering conducting particles itself, so that poorly conductive.But it is blended in multicomponent matrix resin with what carbon black 112 formed In system, since the polarity of different matrix is different, carbon black-filled 112 can generate segregation phenomena, and at this moment electric conductivity depends on charcoal Concentration and distribution of the black track producing particle in segregation phase, additionally depend on segregation phase high polymer proportion.Therefore, a kind of mixture Only carbon black 112, electric conductivity be also it is very poor, i.e., its resistance value can be very high, it is difficult to reach the requirement of electrophoresis process.Cause This, in order to reach satisfactory electric conductivity, the weight ratio of carbon black 112 is 4%~5%.Preferably, the carbon black 112 contains Amount is 4.5wt%.
The carbon nanotube 113 can be regarded as is rolled up around central axis by certain helical angle by single-layer or multi-layer graphite flake Seamless nanoscale pipe made of song, the tubular structure with seamless hollow, tube body are surrounded by hexagonal carbon atom grid, both ends It then usually may be regarded as two hemispheric big fullerene molecules.The diameter of single-walled carbon nanotube is thinner, and generally several nanometers to ten Several nanometers.Carbon nanotube 113 has good conductive property, due to the structure of carbon nanotube 113 and the lamellar structure of graphite It is identical, so having good electric property.Its electric conductivity of theoretical prediction depends on the helical angle of its caliber and tube wall.When When the caliber of CNTs is greater than 6nm, electric conductivity decline;When caliber is less than 6nm, CNTs can be seen as with satisfactory electrical conductivity The One-dimensional Quantum conducting wire of energy.In order to reach satisfactory electric conductivity, while meeting the mechanical property and creep-resistant property of material, The weight ratio of the carbon nanotube 113 is 1%~2%.Preferably, the content of the carbon nanotube 12 is 1.5wt%.The carbon The length of nanotube 113 should be 3 μm~5 μm, to improve its conductivity uniformity.Because the length of carbon nanotube 113 can reach To a centimetre line, if too long, the uniformity of its dispersion can be reduced in mixed process, so that its conductive uniformity can be reduced, And then its electrophoretic effects in electrophoresis process, the i.e. different flaw of electrophoresis thickness can be reduced.
The carbon fiber 114 be a kind of phosphorus content 95% or more high intensity, high modulus fibre tencel material Material.It is to be piled up by organic fibers such as flake graphites along fiber axial direction, is obtained through carbonization and graphitization processing The microcrystalline graphite material arrived.Carbon fiber 114 " soft outside but hard inside ", quality is lighter than metallic aluminium, but intensity is higher than steel, and has Corrosion-resistant, high-modulus characteristic.There are also many performances for carbon fiber 13, if density is low, higher than performance, no creep, and non-oxide ring Superhigh temperature resistant under border, fatigue durability is good, and between nonmetallic between metal, thermal expansion coefficient is small and has each for specific heat and electric conductivity Anisotropy, good corrosion resistance, X-ray transparent are good.Good electrical and thermal conductivity performance, electromagnetic wave shielding are good.In order to make the conduction Self-lubricating film has good conductive property, while having the mechanical property and creep-resistant property for meeting material, the carbon fiber 114 weight ratio is 15%~20%.Preferably, the content of the carbon fiber 114 is 18wt%.
The solid lubricant 115 is selected from glass fibre, silicon, graphite, polyether-ether-ketone, molybdenum disulfide, aromatic polyester, carbon Particle, bronze, thermoplasticity filler, mineral filler and any combination of them.The effect of the solid lubricant is Reduce friction, in the present embodiment, the solid lubricant 115 is molybdenum disulfide, and weight ratio is 0~9%.
Fig. 4 is the flow chart of the preparation method of the conductive self-lubricating film 11.The preparation side of the conduction self-lubricating film 11 Method includes the following steps:
S1: providing carbon black 112 and carbon nanotube 113, and the weight ratio of the carbon black 112 is 4%~5%, carbon nanotube 113 Weight ratio is 1%~2%, and the carbon black 112 and the carbon nanotube 113 are dispersed in liquid medium using ultrasonic dispersion;
S2: carbon fiber 114, solid lubricant 115 and fluoropolymer 111, the weight ratio of the carbon fiber 114 are provided 15%~20%, the weight ratio of the solid lubricant 115 is 0~9%, the weight ratio of the fluoropolymer 111 is 70%~ 80%, and the carbon fiber 114, solid lubricant and the fluoropolymer 111 are uniformly mixed in one under cryogenic It rises and forms fluoropolymer mixture;
S3: will be on pre-dispersed good carbon black 112 and the spray solution to the fluoropolymer mixture of carbon nanotube 113;
S4: the fluoropolymer mixture is subjected to high pressure base in a mold, and forms cylindric blank;
S5: the cylindric blank of the fluoropolymer mixture is put in baking oven and is sintered 48 to 144 hours;
S6: carrying out turning for the cylindric blank of the fluoropolymer mixture after cooling, i.e. the control depth of cut is to obtain Obtain the conductive self-lubricating film of required thickness.
In step sl, the liquid medium can be ethylene glycol solution, in the present embodiment the solid of the ethylene glycol Content is 15-25%wt.
In step s 2, the temperature should be controlled at 19 DEG C hereinafter, preferably 10 DEG C
In step s3, when spraying the carbon black 112 and the solution of carbon nanotube 113, it is poly- that the fluorine should also be stirred Polymer mixtures, so that the blank is uniformly mixed.
In step s 6, pass through turning, it is possible to produce with a thickness of the conductive self-lubricating film of 0.1mm~0.5mm.It is preferred that Ground, it is described conduction self-lubricating film with a thickness of 0.15mm~0.25mm.In the present embodiment, bearing conduction self-lubricating Film with a thickness of 0.2mm.
The adhesive layer 12 is made of fluoropolymer, and the fluoropolymer is selected from ethylene-tetrafluoroethylene copolymer, is fluorinated second Allyl alkene copolymer, ethylene fluorinated ethylene-propylenes trimer, polychlorotrifluoroethylene, ethylene chlorine trichloro ethylene or their times Meaning combination.When in use, which is coated in bonding glue material on the metal-based layer 10 by a heating roller, is reached To smooth purpose.
As shown in figure 5, for the preparation method flow chart of the conductive self-lubricating composite plate of the bearing.The bearing is conductive The preparation method of self-lubricating composite plate includes the following steps:
S21: a metal-based layer 10 is provided, and opens up multiple equally distributed sunk structures on the metal-based layer 10 101, the depth of the sunk structure 101 is 0.02mm~0.10mm, and the area of sunk structure 101 accounts for the face of the metal-based layer Long-pending 30%~50%;
S22: providing adhesive layer 12, and makes the adhesive layer 12 tiling that the Metal Substrate with sunk structure 101 be arranged in On layer 10, thickness 0.01mm~0.05mm of the adhesive layer 12;
S23: conductive self-lubricating film 11 is provided, the conduction self-lubricating film 11 is mainly by fluoropolymer 111, carbon black 112, carbon Nanotube 113, carbon fiber 114 and solid lubricant 115 form, the polymer 111 be selected from one of fluoropolymer or Several and its weight ratio is 70%~80%, and the weight ratio of carbon black 112 is 4%~5%, the weight ratio of the carbon nanotube 113 It is 1%~2%, the weight ratio of the carbon fiber 114 is 15%~20%, the weight ratio of the solid lubricant 115 is 0~ 9%, the length of the carbon nanotube is 3 μm~5 μm, and the conduction self-lubricating film 11 is covered on the adhesive layer 12;
S24: the metal-based layer 10 being superimposed, adhesive layer 12 and conductive self-lubricating film 11 are placed in temperature control In case, the combined temp of the temperature of the temperature control box is 270 DEG C~300 DEG C;
S25: being provided on composite pressure to the conductive self-lubricating film 111, which is 2MPa~10MPa with by institute Conductive self-lubricating film 11 is stated to be conducted with the metal-based layer 10 the conductive self-lubricating composite plate of the bearing is made.
In step S22, the adhesive layer 12 is made of fluoropolymer.The fluoropolymer is selected from ethylene-tetrafluoroethylene Copolymer, fluorinated ethylene propylene copolymer, ethylene fluorinated ethylene-propylenes trimer, polychlorotrifluoroethylene, three chloroethene of ethylene chlorine Alkene or their any combination.
In the step s 21, the sunk structure 101 can be latticed, and the depth of the grid is depth 0.02- 0.05mm.The sunk structure 101 can also be round pool shape, and the depth of the round pool is depth 0.05-0.10mm.In this implementation In example, the sunk structure 101 is latticed, and latticed each bar groove is V-shaped groove, depth 0.03mm.
Compared with prior art, conductive self-lubricating of the bearing provided by the utility model in conductive self-lubricating composite plate Film 11 has used carbon black 112 and carbon nanotube 113, and it is used in mixed way, and reduces the cost of integral material, and being conducive to promote makes With, and should be microcosmic upper in conduction profit certainly by setting the carbon black 112, carbon nanotube 113 and the ratio of carbon fiber 114 Good conductive network is formd in synovial membrane so that the macroscopically conduction self-lubricating film resistance value less than 103Ohms sq Centimetre, so as to reach the requirement of electrophoresis process, simultaneously as the presence of the sunk structure 101, and the adhesive layer 12 With a thickness of 0.01mm~0.05mm, allow composite pressure be 2MPa~10MPa when by the sunk structure 101 will The adhesive layer 12 punctures to conduct the conductive self-lubricating film 11 with metal-based layer 10, while the adhesive layer 12 Other parts also act the effect of bonding, so that the monolith bearing has conductive function with conductive self-lubricating composite plate Can, meet the requirement of electrophoresis process, and then the bearing can satisfy the requirement of auto industry with conductive self-lubricating composite plate, especially It is painting dressing automobiles field.
The above is only the preferred embodiments of the utility model, are not used to the limitation protection scope of the utility model, any Modification, equivalent replacement or improvement within the spirit of the present invention etc. are all covered in the scope of the claims of the utility model.

Claims (4)

1. a kind of conductive self-lubricating composite plate of bearing, is used in electrophoresis process, it is characterised in that: the bearing is conductive Self-lubricating composite plate includes a metal-based layer, one layer of conductive self-lubricating film being arranged on the metal-based layer, and is used for The adhesive layer of the metal-based layer and conductive self-lubricating film is bonded, offers multiple equally distributed recess on the metal-based layer Structure, depth 0.02mm~0.10mm of the sunk structure, the area of sunk structure account for the area of the metal-based layer 30%~50%, the adhesive layer with a thickness of 0.01mm~0.05mm, the conduction self-lubricating film with a thickness of 0.1mm~ 0.5mm, the conduction self-lubricating film are conducted by the sunk structure and the metal-based layer.
2. conduction self-lubricating composite plate as described in claim 1, it is characterised in that: the conduction self-lubricating film with a thickness of 0.15-0.25mm。
3. the conductive self-lubricating composite plate of bearing as described in claim 1, it is characterised in that: the sunk structure is grid Shape, the depth of the grid are depth 0.02-0.05mm.
4. the conductive self-lubricating composite plate of bearing as described in claim 1, it is characterised in that: the sunk structure is round pool Shape, the depth of the round pool are depth 0.05-0.10mm.
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WO2020038263A1 (en) * 2018-08-22 2020-02-27 浙江长盛滑动轴承股份有限公司 Conductive self-lubricating composite plate for bearing

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CN108891103A (en) * 2018-08-22 2018-11-27 浙江长盛滑动轴承股份有限公司 A kind of bearing conductive self-lubricating composite plate and preparation method thereof
CN109181823B (en) * 2018-08-22 2021-08-17 浙江长盛滑动轴承股份有限公司 Conductive self-lubricating film for bearing and preparation method thereof
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WO2020038263A1 (en) * 2018-08-22 2020-02-27 浙江长盛滑动轴承股份有限公司 Conductive self-lubricating composite plate for bearing

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