CN100364718C - Method for preparing sliding bearing of nano AI2O3/polyimide friction compound material - Google Patents
Method for preparing sliding bearing of nano AI2O3/polyimide friction compound material Download PDFInfo
- Publication number
- CN100364718C CN100364718C CNB2005100270622A CN200510027062A CN100364718C CN 100364718 C CN100364718 C CN 100364718C CN B2005100270622 A CNB2005100270622 A CN B2005100270622A CN 200510027062 A CN200510027062 A CN 200510027062A CN 100364718 C CN100364718 C CN 100364718C
- Authority
- CN
- China
- Prior art keywords
- polyimide
- sliding bearing
- compound material
- steel plate
- nanometer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The present invention relates to a method for preparing sliding bearings of nano Al2O3/polyimide friction compound material. Firstly, a layer of bronze powder used as the middle layer is sintered on the surface of a steel plate, then, a layer of polyimide polymers containing nano Al2O3 is rolled on the middle layer, and a sliding bearing of compound material is prepared through sintering, mechanical processing modification and rolling welding under the condition of nitrogen protection, wherein the raw material of the polymer layer comprises 70 to 95 wt% of polyimide, 2.5 to 15 wt% of polytetrafluoroethene, 1.5 to 10 wt% of nano Al2O3 and 1 to 5 wt% of lead powder. The sliding bearing of nano Al2O3/polyimide friction compound material, which is prepared by the process, has good mechanical property and tribological property, and can be used for various occasions with oil-free lubrication in the machinery departments, foodstuff departments, spaceflight departments, etc.
Description
Technical field
The present invention relates to a kind of preparation method of novel nano composite friction material sliding bearing, relate in particular to a kind of nanometer Al that comprises
2O
3The preparation method of polyimide friction compound material sliding bearing, belong to novel mechanical part processing technical field.
Background technology
Composite material sliding bearing is a kind of novel oil-free lubrication sliding bearing, and at home and abroad some industrial departments are used very extensive.This bearing material is to be base material with the steel plate, and sintering one deck bronze powder is done the intermediate layer on base material, and rolling thereon one deck high molecule plastic or polymer composite can self-lubricatings as superficial layer.It has given full play to the rigidity of metal and the self lubricity excellent characteristics of plastics, thereby has remedied the shortcoming of the unstable and metal dry friction difference of plastics size, makes it to have endurance, bearing capacity height, characteristics such as wearability is good, the life-span is long.
Polyimides is the organic polymer that contains imide group on the class main chain, has excellent advantages such as heat endurance, high vacuum, anti-irradiation and low fretting wear.Polyimides is applied to as self-lubricating abrasion-proof material in the friction system in fields such as space flight, is subjected to the very big attention of national defense and military and sophisticated technology department day by day.Wherein, addition polyimide (API) has good processing characteristics and outstanding thermo oxidative stability energy, but anti-wear performance is poor when using separately, so, adding various fillers and make the composite polyimide material member in matrix, is one of its principal mode of using in tribological field.Adopt nanometer Al
2O
3Filled polyimide can make the composite with excellent tribology performance, can be used as the surface bears layer of composite bearing.
Publication number is that the Chinese invention patent of CN1431407A discloses a kind of F plastic base nano composite material sliding bearing, adopt fluoroplastics resin as matrix material, the composite that is composited with functional modifier, fortifying fibre and auxiliary agent, and manufacture sliding bearing according to conventional method, it is low to have coefficient of friction, abrasion resistance properties is good, characteristics such as long service life.But the resin matrix that adopts is fluoroplastics, and resistance to elevated temperatures is poor, and maximum operation (service) temperature can only reach 250 ℃.
Publication number is that the Chinese invention patent of CN1445284A discloses a kind of nano zine oxide filled polyimide material, has excellent mechanical property, heat resistance and tribological property, but also is not applied to composite bearing at present.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of nanometer Al that comprises is provided
2O
3The preparation method of polyimide friction compound material sliding bearing, the technology simple possible, adopt lower additive amount just can improve the anti-friction wear-resistant technical performance of composite to greatest extent, this composite bearing coefficient of friction is low, anti-wear performance is good, long service life, and the PV value is higher, self-lubricating property is good, can be widely used in the occasion that departments such as automobile, machinery, food, Aeronautics and Astronautics require oil-free lubrication.
For realizing such purpose, in the technical scheme of the present invention, adopt steel plate, bronze powder, nanometer Al
2O
3, raw materials such as polyimides, polytetrafluoroethylene (PTFE) and a small amount of lead powder, adopt method such as rolling to manufacture sliding bearing.At first at surface of steel plate sintering one deck bronze powder as the intermediate layer, rolling one deck comprises nanometer Al on the intermediate layer then
2O
3The polyimide polymer layer, modify through the sintering under the nitrogen protection condition, machining again and roll welding, make composite material sliding bearing.Comprise nanometer Al through what above-mentioned technology made
2O
3The polyimide friction compound material sliding bearing have excellent mechanical property and tribological property,
Composite material sliding bearing preparation method of the present invention is specially: at first at steel plate upper berth one deck bronze powder, thickness is 0.3～0.4 millimeter, be in the same place with the substrate of steel plate sintering at 800 ℃ of following copper powders of condition, make surface of steel plate sintering one deck bronze powder as the intermediate layer, then on the bronze powder intermediate layer of sintering rolling one deck by polyimides, nanometer Al
2O
3, the polymeric layer formed such as polytetrafluoroethylene (PTFE) and a small amount of lead powder, pressure is 30MPa, under the nitrogen protection condition, carries out sintering under 400 ℃ of conditions then, modifies through machining, at last through rolling, being welded into composite bearing again.
Wherein, polymeric layer raw material composition percentage by weight of the present invention is:
Polyimides: 70～95%,
Polytetrafluoroethylene (PTFE): 2.5～15%,
Nanometer Al
2O
3: 1.5～10%, nanometer Al
2O
3Average diameter is 30～50 nanometers,
Other add material lead powder etc.: 1～5%.
The polyimides that the present invention adopts is an addition polyimide molding powder, as: PMR-15, Kerimid etc.Polytetrafluoroethylene (PTFE) comprises the polyflon with the various trades mark of suspension polymerization, as SM021 etc.
Composite material sliding bearing of the present invention, nano particle strengthens, toughening modifying owing to add, and sample shows that its upper limit (UL) load has improved more than 20% on original basis, and the highest invalid temperature has improved more than 30 ℃, and the PV value has improved more than 20%.
Nanometer Al of the present invention
2O
3It is few that the filled polyimide composite material sliding bearing has amount of filler, and coefficient of friction and wear rate are low, and self-lubricating property waits well a bit, and performance is better than existing polymer matrix composite sliding bearing.
The specific embodiment
Below by specific embodiment technical scheme of the present invention is further described, but do not constitute limitation of the invention.
Embodiment 1:
The weight percentages of components of composite material sliding bearing polymeric layer is: the PMR-15 polyimide molding powder: 70%, and polytetrafluoroethylene (PTFE) 15%, nanometer Al
2O
3: 10%, average diameter is between 30～50 nanometers, lead powder: 5%.
The composite bearing manufacture process is as follows: at first at steel plate upper berth one deck bronze powder, the thickness of bronze powder is 0.4 millimeter, at 800 ℃ of following bronze powders of condition and steel plate sintering together, and then above-mentioned polyimide molding powder, polytetrafluoroethylene (PTFE), nanometer Al
2O
3, lead powder fully mixes, stir.Under the pressure of 30MPa, rolling at sintering on the steel plate in bronze powder intermediate layer, the thickness of polymeric layer is 10 millimeters; under 400 ℃ of conditions of nitrogen protection, carry out sintering then, modify through machining again, remove burr; roll, composite bearing is made in welding, and diameter is 20mm.
The sliding bearing for preparing is carried out the tribology test, and recording its ultimate load is 150.8kg, and invalid temperature is 370 ℃, and the PV value is 1.59MPa.m/s.
Embodiment 2
Adjust the raw material proportioning of polymeric layer, each weight percentages of components is as follows: the PMR-15 polyimide molding powder: 80%, and polytetrafluoroethylene (PTFE): 10%, nanometer Al
2O
3: 5%, lead powder 5%.
The preparation technology of composite bearing is identical with embodiment 1, tests its tribological property, and ultimate load is 160.5kg, and invalid temperature is 360 ℃, and the PV value is 1.63MPa.m/s.
Embodiment 3
Composite raw material components percentage by weight is: the PMR-15 polyimide molding powder: 95%, and polytetrafluoroethylene (PTFE) 2.5%, nanometer Al
2O
3: 1.5%, lead powder 1%.
The manufacturing process of composite bearing is with embodiment 1, and its ultimate load slightly descends, and is 146.7kg, but coefficient of friction diminished, and invalid temperature is 357 ℃, and the PV value is 1.62MPa.m/s.
Claims (1)
1. one kind comprises nanometer Al
2O
3The preparation method of polyimide friction compound material sliding bearing, it is characterized in that at first being 0.3～0.4 millimeter bronze powder at steel plate upper berth one layer thickness, be in the same place with the substrate of steel plate sintering at 800 ℃ of following bronze powders of condition, rolling one deck comprises nanometer Al on the bronze powder intermediate layer of surface of steel plate sintering then
2O
3The polyimide polymer layer, pressure is 30MPa, carries out sintering then under nitrogen protection, 400 ℃ of conditions, modifies through machining, at last through rolling, being welded into composite bearing again; The wherein said nanometer Al that comprises
2O
3The raw material of polyimide polymer layer form percentage by weight and be: polyimides: 70～95%, polytetrafluoroethylene (PTFE): 2.5～15%, average diameter is the Al of 30～50 nanometers
2O
3: 1.5～10%, lead powder: 1～5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100270622A CN100364718C (en) | 2005-06-23 | 2005-06-23 | Method for preparing sliding bearing of nano AI2O3/polyimide friction compound material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100270622A CN100364718C (en) | 2005-06-23 | 2005-06-23 | Method for preparing sliding bearing of nano AI2O3/polyimide friction compound material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1701912A CN1701912A (en) | 2005-11-30 |
| CN100364718C true CN100364718C (en) | 2008-01-30 |
Family
ID=35631952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100270622A Expired - Fee Related CN100364718C (en) | 2005-06-23 | 2005-06-23 | Method for preparing sliding bearing of nano AI2O3/polyimide friction compound material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100364718C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455403C (en) * | 2007-02-15 | 2009-01-28 | 上海核威实业有限公司 | Technique for producing aluminum bronze-steel dual-metal bearing material |
| CN101363463B (en) * | 2008-07-14 | 2012-05-16 | 东莞市新志密封技术有限公司 | Guidance belt for hydrocylinder and cylinder and method for producing same |
| CN102345678B (en) * | 2011-06-17 | 2013-04-10 | 浙江长盛滑动轴承股份有限公司 | Three layer composite self-lubricating sliding bearing with modified polyimide wear layer and preparation method thereof |
| CN103911118A (en) * | 2014-04-01 | 2014-07-09 | 南京航空航天大学 | Polyimide friction material for rotary ultrasonic motor and preparation method of polyimide friction material |
| KR20170066522A (en) * | 2014-10-14 | 2017-06-14 | 니혼 브레이크 고오교 가부시키가이샤 | Friction material composition, friction material, and friction member |
| CN105482361B (en) * | 2016-01-12 | 2018-03-16 | 山东佳星环保科技有限公司 | A kind of graphene-based wear-resisting composite lubricated material and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1454385A (en) * | 1973-01-17 | 1976-11-03 | Garlock Inc | Composite bearings |
| JPS6037415A (en) * | 1983-08-09 | 1985-02-26 | Oiles Ind Co Ltd | Composite-layered bearing and producing method thereof |
| US5525246A (en) * | 1990-07-24 | 1996-06-11 | Taiho Kogyo Co., Ltd. | Sliding-Bearing Material |
| JPH0979262A (en) * | 1995-09-14 | 1997-03-25 | Taiho Kogyo Co Ltd | Slide bearing |
| CN1431407A (en) * | 2003-02-24 | 2003-07-23 | 济南大学 | Nano composite material sliding bearing with fluoroplastics base |
| US6607820B2 (en) * | 2000-06-15 | 2003-08-19 | Daido Metal Company Ltd. | Composite sliding material |
| CN1445284A (en) * | 2003-04-11 | 2003-10-01 | 上海市合成树脂研究所 | Polyimide material filled with nano zinc oxide |
-
2005
- 2005-06-23 CN CNB2005100270622A patent/CN100364718C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1454385A (en) * | 1973-01-17 | 1976-11-03 | Garlock Inc | Composite bearings |
| JPS6037415A (en) * | 1983-08-09 | 1985-02-26 | Oiles Ind Co Ltd | Composite-layered bearing and producing method thereof |
| US5525246A (en) * | 1990-07-24 | 1996-06-11 | Taiho Kogyo Co., Ltd. | Sliding-Bearing Material |
| JPH0979262A (en) * | 1995-09-14 | 1997-03-25 | Taiho Kogyo Co Ltd | Slide bearing |
| US6607820B2 (en) * | 2000-06-15 | 2003-08-19 | Daido Metal Company Ltd. | Composite sliding material |
| CN1431407A (en) * | 2003-02-24 | 2003-07-23 | 济南大学 | Nano composite material sliding bearing with fluoroplastics base |
| CN1445284A (en) * | 2003-04-11 | 2003-10-01 | 上海市合成树脂研究所 | Polyimide material filled with nano zinc oxide |
Non-Patent Citations (1)
| Title |
|---|
| 聚酰亚胺基纳米复合材料轴承的研制. 李学闵，苏衍良，孙成栋，贾衍才，赵顺伟.工程塑料应用，第31卷第9期. 2003 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1701912A (en) | 2005-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100364718C (en) | Method for preparing sliding bearing of nano AI2O3/polyimide friction compound material | |
| EP2402606B1 (en) | Self-lubricating wear-resistant coating swash plate and the production process thereof | |
| JP6123110B2 (en) | Three-layer composite self-lubricating plain bearing with modified polyimide wear layer and method for manufacturing the same | |
| EP1894987B1 (en) | Double-layer lubrication coating composition, double-layer lubrication coating and piston having same coating | |
| Shi et al. | The tribological behavior of nanometer and micrometer TiO2 particle-filled polytetrafluoroethylene/polyimide | |
| CN101423665B (en) | High performance polymer base composite material for support roller and preparation method | |
| EP3339386B1 (en) | Use of a polymeric material based on polyetherketoneketones for reducing wear | |
| CN1304477C (en) | Compound PTFE material with low friction and high wear resistance and its prepn process | |
| CN101629601B (en) | High molecular abrasion-proof bearing bush | |
| Miao et al. | MXenes in tribology: Current status and perspectives | |
| CN111171483A (en) | Wear-resistant self-lubricating sealing composite material | |
| CN101655127A (en) | Method for preparing sliding bearing by using polyether-ether-ketone composite material | |
| CN106011539B (en) | Wide temperature range self-lubricating composite of a kind of nickel aluminium/vanadium oxide/silver and preparation method thereof | |
| US20150126663A1 (en) | Tribological aromatic polyimide compositions | |
| CN101407633A (en) | Method for preparing slide bearing by using polyimide composite material | |
| CN108061097A (en) | A kind of unleaded Sliding bush and production technology | |
| JP2002327750A (en) | Multi-layered bearing | |
| CN114000007B (en) | Copper-based self-lubricating composite material and preparation method thereof | |
| CN104831149A (en) | Cu/AlMgB14 composite material and preparation method thereof | |
| CN111570790A (en) | POK three-layer composite self-lubricating material and preparation process thereof | |
| JP3466255B2 (en) | Polytetrafluoroethylene resin composition | |
| CN109337265A (en) | A kind of automobile shock absorber piston film and preparation method thereof | |
| WO2018216675A1 (en) | Resin material for sliding members, and sliding member | |
| CN109294697B (en) | Low-cost solid lubricant | |
| CN108239381B (en) | Low-friction wear polycarbonate self-lubricating composite material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 Termination date: 20100623 |