CN105063396A - Aluminum bronze composite slide bearing material containing nanometer particles and grease and preparation method thereof - Google Patents
Aluminum bronze composite slide bearing material containing nanometer particles and grease and preparation method thereof Download PDFInfo
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- CN105063396A CN105063396A CN201510469599.8A CN201510469599A CN105063396A CN 105063396 A CN105063396 A CN 105063396A CN 201510469599 A CN201510469599 A CN 201510469599A CN 105063396 A CN105063396 A CN 105063396A
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Abstract
The invention discloses an aluminum bronze composite slide bearing material containing nanometer particles and grease and a preparation method thereof. The material comprises an aluminum bronze basal body having holes, grease and nanometer particles, wherein the nanometer particles are uniformly dispersed in the grease to form a grease mixture, and the grease mixture is permeated into the holes of the aluminum bronze basal body; and the grease mixture is automatically leaked to a friction surface from the basal body in application to provide dual lubrication. The nanometer particles and the grease are uniformly mixed; the obtained mixture is pressurized to permeate into the holes of the basal body; and the pressurized pressure is enough to permeate the mixture into the holes of the basal body. The slide bearing material is excellent in self-lubricating performance and wear resistance and longer in service life.
Description
Technical field
The invention belongs to bearing materials field, more specifically, relate to a kind of xantal bearing materials containing nanoparticle and grease and preparation method thereof.
Background technology
Oil containing bearing material as a kind of self-lubricating material, have cost low, can absorbing, noise little, within the longer working hour without features such as apply oils, be specially adapted to not easily lubricate, be difficult to supplement the Working environment refueling or do not allow oil dirty.Porosity is and the mechanical property of oil bearing and the closely-related important parameter of oil length, and it has different requirements according to load difference, and the oil bearing worked under high speed, underloading requires that oleaginousness is many, and porosity should be high; High at the oil bearing desired strength of the more lower work of low speed, load, porosity should be low.Oil bearing is invented in 20 beginnings of the century, because of its low cost of manufacture, easy to use, be widely applied, become the various mechanicalss such as automobile, household electrical appliances, stereo set, office equipment, agricultural machine, precision optical machinery and developed an indispensable class fundamental parts.
In the application process of oil containing bearing material, containing nanoparticle grease as the key substance reducing friction, serve conclusive effect, the nanoparticle friction reducing effect of different ratios, granularity is different.Existing oil containing bearing material is immersion lubrication oil mostly, although the lubricity of bearing also can be met to a certain extent, but because the viscosity of fluid is lower, just substance lubrication, limit the supporting capacity of oil bearing and the further raising in bearing work-ing life.
The grease that can be used in prior art in bearing materials all can be used for the present invention.Wherein, described grease is the composite aluminum base grease of high temperature waterproof conventional in this area.The present invention for used in the specific embodiment explained be commercially available composite aluminum base grease, model is HC-20.
Wherein, described nanoparticle is selected from one or more in simple substance, oxide compound, halogenide, sulfide, inorganic salt or oxyhydroxide; Simple substance preferably copper, nickel, graphite, diamond and/or C
60; Oxide compound preferential oxidation aluminium; The preferred boron chloride of halogenide; The preferred molybdenumdisulphide of sulfide; Inorganic salt preferred boric acid salt and/or phosphoric acid salt; The preferred nickel hydroxide of oxyhydroxide, manganous hydroxide and/or cobaltous hydroxide etc.The preferred C of described nanoparticle
60, diamond and/or graphite.Be more preferably graphite, diamond and/or C
60.The composite bearing material life-span containing nano-sized carbon simple substance reaches 9500h.
Wherein, wear and tear as failure criteria using xantal surface of friction 50%, finally record, the grease-contained xantal material for sliding bearing not adding nanoparticle is generally 4500h work-ing life, and be at least 6000h work-ing life, more preferably greater than 9500h containing the xantal composite material for sliding bearing of nano particle and grease in the present invention.
Another aspect of the present invention provides a kind of preparation method of bearing materials described above, this preparation method comprises and being mixed with grease by described nanoparticle, then pressurize and penetrate in described matrix hole by the mixture obtained, the pressure wherein after pressurization is enough to mixture is penetrated in the hole of matrix.
Wherein, described matrix is prepared by powder metallurgy technology by xantal.Powder metallurgy technology can provide the advantage of controlled porosity because of it, is especially widely used in bearing industry at modern industry, and plays a very important role.Using powder metallurgy to prepare xantal material for sliding bearing in the present invention makes body material eliminate thick, uneven cast structure, and have the porosity of uniform, controllable more, thus make the seepage flow that nanoparticle and rich mixture are more prone to enter in body material, in the material obtained, support performance is everywhere consistent with lubricity, can better be applied to required surface.
Wherein, described reaction is placed in confined reaction device and carries out; In addition, first warming procedure is carried out before combination.
Step is more specifically: step one, measures the parameters such as porosity, grease viscosity, permeability coefficient; Step 2, sets up equation and emulates bearing; Step 3, by determining exudation pressure to the performance of simulation result in seepage discharge and seepage velocity; At this pressure, coordinate to determine Heating temperature and dwell time; Step 4, according to drive tab design seepage flow cell structure, note the impact of its entrance structure on seepage velocity and flowing field stability; Assembling seepage apparatus, carries out seepage flow by selected optimized parameter.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with specific embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
It is below specific embodiment
Summary of the invention
For above defect or the Improvement requirement of prior art, to the invention provides nanoparticle and grease seepage flow in xantal matrix, solve inadequate in bearing materials lubricity, that supporting capacity is poor, work-ing life is short technical problem thus.
For achieving the above object, according to one aspect of the present invention, provide a kind of xantal composite bearing material, this material comprises xantal matrix, grease and the nanoparticle with hole, wherein, nanoparticle is dispersed in grease and forms rich mixture, and described rich mixture seepage flow is in the hole of xantal matrix; Described rich mixture is exuded to friction surface voluntarily when applying from matrix, provides dual lubrication.
Preferably, described xantal matrix forms by the Aluminum Bronze of bearing class is powder metallurgy sintered, and porosity is 15% ~ 30%.
Preferably, the content of described nanoparticle is the 0.5wt% ~ 5.0wt% of described grease, and grain size is 20nm ~ 50nm.
Preferably, described grease is the composite aluminum base grease of high temperature waterproof.
Preferably, described nanoparticle is selected from one or more in simple substance, oxide compound, halogenide, sulfide, inorganic salt or oxyhydroxide; Simple substance preferably copper, nickel, graphite, diamond and/or C
60; Oxide compound preferential oxidation aluminium; The preferred boron chloride of halogenide; The preferred molybdenumdisulphide of sulfide and/or silicon-dioxide; Inorganic salt preferably phosphate and/or borate; The preferred nickel hydroxide of oxyhydroxide, manganous hydroxide and/or cobaltous hydroxide.
Preferably, the life-span of described bearing materials is more than or equal to 6000h, life at least 33%.
Another aspect of the present invention provides a kind of preparation method of bearing materials described above, this preparation method comprises and being mixed with grease by described nanoparticle, then pressurize and penetrate in described matrix hole by the mixture obtained, the pressure wherein after pressurization is enough to mixture is penetrated in the hole of matrix.
Preferably, described matrix is prepared by powder metallurgy technology by xantal.
Preferably, described reaction is placed in confined reaction device and carries out; In addition, first warming procedure is carried out before combination.
In general, technical scheme of the present invention compared with prior art, by obtaining following beneficial effect:
(1) the present invention adopt by nanoparticle together with grease seepage flow in xantal matrix, make the xantal composite material for sliding bearing prepared under friction condition, fricative heat makes nanoparticle be exuded to friction surface with melting grease, nanoparticle can be filled in the Microscopic grooves of friction surface, meanwhile, nanoparticle can be formed " ball ", make sliding friction become rolling resistance, thus self-lubricating property and the wear resisting property of xantal base bearing matrix material can be improved to a great extent.
(2) the present invention is according to the difference of load and operating mode, selects the nano particle additive of matrix and/or the corresponding proportioning with different porosities effectively can improve the supporting capacity of bearing materials.The present invention, by optimizing the addition of nanoparticle and the kind of grease, makes supporting capacity and the work-ing life of xantal bearing composite material of the present invention.
(3) the present invention makes mixing more evenly of nanoparticle and grease by temperature-pressure in confined reaction device and makes the more uniform seepage flow of mixture in body material, makes the performance of bearing materials of the present invention more homogeneous and stable.In addition, the present invention uses powder metallurgy technology to make body material of the present invention eliminate thick, uneven cast structure to prepare xantal body material, thus make the seepage flow that nanoparticle and rich mixture are more prone to enter in body material, in the material obtained, support performance is everywhere consistent with lubricity, can better be applied to required surface.
(4) life-span of the present invention by bearing materials will be extended in nanoparticle and grease seepage flow to xantal bearing matrix, reach 6000h (extending 33% compared with not adding the body material of nanoparticle), more preferably reach 9500h (extending 100% compared with not adding the body material of nanoparticle), be longer than common xantal oil containing bearing material (being generally 4500h) out and away.
Accompanying drawing explanation
Fig. 1 is a kind of preparation technology's schema containing the xantal material for sliding bearing of nanoparticle and grease of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
Of the present inventionly provide a kind of xantal composite bearing material, this material comprises xantal matrix, grease and the nanoparticle with hole, wherein, nanoparticle is dispersed in grease and forms rich mixture, and described rich mixture seepage flow is in the hole of xantal matrix; Described rich mixture is exuded to friction surface voluntarily when applying from matrix, provides dual lubrication.
Wherein, described xantal matrix forms by the Aluminum Bronze of bearing class is powder sintered, and porosity is 15% ~ 30%.Wherein, the xantal material that can be used in prior art in bearing materials all may be used for the present invention, uses commercially available Aluminum Bronze in specific embodiments of the invention.Containing Cu, Al, Fe, Mn, Co, Zn, Ni, Re, mass ratio is: (%) Cu75-80Al14-16Fe2-4Mn0.8-1.0Co0.8-2.6Zn0.8-2.6Ni0.8-2.6R e0.8-2.6.
Wherein, the content of described nanoparticle is the 0.5wt% ~ 5.0wt% of described grease, and particle diameter is 20nm ~ 50nm.
Xantal in specific embodiment is Aluminum Bronze.Composition is: (%) Cu75-80Al14-16Fe2-4Mn0.8-1.0Co0.8-2.6Zn0.8-2.6Ni0.8-2.6R e0.8-2.6.
Grease: HC-20 synthetic complex aluminium base grease.
Embodiment 1
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 15%, fills containing 0.5% nanometer C
60the high temperature waterproof composite aluminum base grease of particle.
Embodiment 2
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 15%, fills containing 1.0% nanometer C
60the high temperature waterproof composite aluminum base grease of particle.
Embodiment 3
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 15%, fills containing 2.0% nanometer C
60the high temperature waterproof composite aluminum base grease of particle.
Embodiment 4
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 20%, fills containing 1.5% nanometer C
60the high temperature waterproof composite aluminum base grease of particle.
Embodiment 5
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 20%, fills containing 2.5% nanometer C
60the high temperature waterproof composite aluminum base grease of particle.
Embodiment 6
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 20%, fills containing 3.5% nanometer C
60the high temperature waterproof composite aluminum base grease of particle.
Embodiment 7
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 25%, fills containing 2.5% nanometer C
60the high temperature waterproof composite aluminum base grease of particle.
Embodiment 8
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 25%, fills containing 4.0% nanometer C
60the high temperature waterproof composite aluminum base grease of particle.
Embodiment 9
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 30%, fills containing 2.5% nanometer C
60the high temperature waterproof composite aluminum base grease of particle.
Embodiment 10
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 30%, fills containing 4.5% nanometer C
60the high temperature waterproof composite aluminum base grease of particle.
Embodiment 11
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 15%, fills the high temperature waterproof composite aluminum base grease containing 4.5% Nano diamond particle.
Embodiment 12
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the xantal matrix that porosity is 20%, fills containing 2.5% nanometer C
60the high temperature waterproof composite aluminum base grease of particle.
Embodiment 13
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 20%, fills the high temperature waterproof composite aluminum base grease containing 2.5% Nano diamond particle.
Embodiment 14
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 20%, fills the high temperature waterproof composite aluminum base grease containing 2.5% nano copper particle.
Embodiment 15
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 25%, fills the high temperature waterproof composite aluminum base grease containing 2.5% nano nickle granules.
Embodiment 16
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 25%, fills the high temperature waterproof composite aluminum base grease containing 2.5% nano alumina particles.
Embodiment 17
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 25%, fills the high temperature waterproof composite aluminum base grease containing 3.0% nanometer boron chloride particle.
Embodiment 18
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 25%, fills the high temperature waterproof composite aluminum base grease containing 3.0% nanometer titanium dioxide molybdenum particle.
Embodiment 19
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 20%, fills the high temperature waterproof composite aluminum base grease containing 2.5% nanometer silicon dioxide particle.
Embodiment 20
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 25%, fills the high temperature waterproof composite aluminum base grease containing 3.0% nano-calcium phosphate particle.
Embodiment 21
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 25%, fills the high temperature waterproof composite aluminum base grease containing 2.5% nano boric acid titanium particle.
Embodiment 22
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 20%, fills the high temperature waterproof composite aluminum base grease containing 3.0% nanometer manganous hydroxide particle.
Embodiment 23
This example discloses a kind of xantal antifriction composite containing nanoparticle and grease, comprises the cubraloy matrix that porosity is 20%, fills containing 3.0% nanometer C
60the high temperature waterproof composite aluminum base grease of particle and silicon-dioxide.
Embodiment 24
Carry out cubraloy material according to JB/T6646-2007 and at room temperature carry out compressive strength test, this research Bian ultimate compression strength of the WDW-200 type microcomputer controlled electronic universal tester test samples of Central China University of Science and Technology's the Mechanics Experiment Center, trial speed is 0.5mm/min, and characterize the strength at break limit by maximum compression divided by stressed cross-sectional area and be 40mm at bearing diameter, when width is 20mm, adopt nanometer C
60the maximum bearing pressure of bearing materials of particle is 92.8MPa;
About the measurement in life-span, assemble corresponding image sensor, to monitor the situation of surface of friction, we wear and tear as failure criteria using xantal surface of friction 50%, finally record, the grease-contained xantal bearing materials not adding nanoparticle is generally 4500h work-ing life, and xantal bearing materials work-ing life of the xantal material nano graphite containing nano particle and grease of the present invention minimum be 6000h, carbon containing simple substance particle is as C
60, diamond, graphite the mean lifetime of composite bearing material then reach 9500h.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. an xantal composite material for sliding bearing, it is characterized in that, described material comprises xantal matrix, grease and the nanoparticle with hole, wherein, nanoparticle is dispersed in grease and forms rich mixture, and described rich mixture seepage flow is in the hole of xantal matrix; Described rich mixture is exuded to friction surface voluntarily when applying from matrix, provides dual lubrication.
2. bearing materials as claimed in claim 1, it is characterized in that, described xantal matrix forms by the Aluminum Bronze of bearing class is powder metallurgy sintered, and porosity is 15% ~ 30%.
3. bearing materials as claimed in claim 1, it is characterized in that, the content of described nanoparticle is the 0.5wt% ~ 5.0wt% of described grease, is of a size of 20nm ~ 50nm.
4. the bearing materials according to any one of claim 1-3, is characterized in that, described grease is the composite aluminum base grease of high temperature waterproof.
5. the bearing materials according to any one of claim 1-4, is characterized in that, described nanoparticle be selected from simple substance, oxide compound, halogenide, sulfide, inorganic salt or oxyhydroxide one or more; Simple substance preferably copper, nickel, graphite, diamond and/or C
60; Oxide compound preferential oxidation aluminium; The preferred boron chloride of halogenide; The preferred molybdenumdisulphide of sulfide and/or silicon-dioxide; Inorganic salt preferably phosphate and/or borate; The preferred nickel hydroxide of oxyhydroxide, manganous hydroxide and/or cobaltous hydroxide.
6. the bearing materials according to any one of claim 1-5, is characterized in that, the life-span of described bearing materials is more than or equal to 6000h.
7. the preparation method of the bearing materials according to any one of claim 1-6, it is characterized in that, described nanoparticle is mixed with grease, then pressurize and penetrate in described matrix hole by the mixture obtained, the pressure wherein after pressurization is enough to mixture is penetrated in the hole of matrix.
8. preparation method as claimed in claim 6, it is characterized in that, described matrix is prepared by powder metallurgy technology by xantal.
9. preparation method as claimed in claim 6, is characterized in that, also comprise, first carry out airtight warming procedure before combination.
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| CN201510469599.8A CN105063396A (en) | 2015-08-04 | 2015-08-04 | Aluminum bronze composite slide bearing material containing nanometer particles and grease and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172611A (en) * | 2019-06-13 | 2019-08-27 | 赖亚娟 | A kind of nano-graphite-nanometer MoS2Composite Cu base sliding contact material |
| CN112157255A (en) * | 2020-09-12 | 2021-01-01 | 天鑫精工科技(威海)有限公司 | Corrosion-resistant die material and preparation method thereof |
| CN113046618A (en) * | 2021-02-08 | 2021-06-29 | 北京理工大学重庆创新中心 | Method for preparing carbon simple substance in matrix or on surface |
| CN118241128A (en) * | 2024-04-16 | 2024-06-25 | 扬州昊然机械配件有限公司 | Copper-aluminum alloy finned tube and production process thereof |
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| CN101105200A (en) * | 2006-07-11 | 2008-01-16 | 陈韵如 | Self-lubrication type bearing and its method for making |
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2015
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105200A (en) * | 2006-07-11 | 2008-01-16 | 陈韵如 | Self-lubrication type bearing and its method for making |
Non-Patent Citations (1)
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| 刘大军 等: "《纳米材料在轴承润滑脂中的应用》", 《轴承》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172611A (en) * | 2019-06-13 | 2019-08-27 | 赖亚娟 | A kind of nano-graphite-nanometer MoS2Composite Cu base sliding contact material |
| CN110172611B (en) * | 2019-06-13 | 2021-06-18 | 哈工大泰州创新科技研究院有限公司 | Nano graphite-nano MoS2Composite Cu-based sliding electric contact material |
| CN112157255A (en) * | 2020-09-12 | 2021-01-01 | 天鑫精工科技(威海)有限公司 | Corrosion-resistant die material and preparation method thereof |
| CN113046618A (en) * | 2021-02-08 | 2021-06-29 | 北京理工大学重庆创新中心 | Method for preparing carbon simple substance in matrix or on surface |
| CN118241128A (en) * | 2024-04-16 | 2024-06-25 | 扬州昊然机械配件有限公司 | Copper-aluminum alloy finned tube and production process thereof |
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Application publication date: 20151118 |