CN101408223A - Method for manufacturing slide bearing by using polytetrafluorethylene composite material - Google Patents
Method for manufacturing slide bearing by using polytetrafluorethylene composite material Download PDFInfo
- Publication number
- CN101408223A CN101408223A CNA2008100424677A CN200810042467A CN101408223A CN 101408223 A CN101408223 A CN 101408223A CN A2008100424677 A CNA2008100424677 A CN A2008100424677A CN 200810042467 A CN200810042467 A CN 200810042467A CN 101408223 A CN101408223 A CN 101408223A
- Authority
- CN
- China
- Prior art keywords
- composite material
- polyamide
- steel plate
- maleic anhydride
- sintering
- 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.)
- Pending
Links
Landscapes
- Laminated Bodies (AREA)
- Sliding-Contact Bearings (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
A method for preparing a sliding bearing by using PTFE composite material is characterized in that: polyamide is firstly ablated for 0.5-1 hours in a muffle furnace at 500 DEG C-600 DEG C, then is immersed into a maleic anhydride solution for 1-2 hours at room temperature, and then filtered and dried; PTFE, lead powder and polyamide are used for preparing the raw materials of a polymer layer according to the weight percentage of raw material composition of 70-95 percent : 1-5 percent : 4-25 percent; bronze powder with the thickness of 0.25-0.3mm is laid on a steel plate, then, the copper power and the steel plate are sintered together under the condition of 800 DEG C, with the time of 2 hours; the polymer layer with the thickness of 0.01-0.03mm is rolled on a sintered bronze power layer, with the pressure of 30MPa, and then is re-sintered under the conditions of nitrogen protection and the temperature of 380 DEG C; and finally, by mechanical processing and rolling welding, a composite material sliding bearing is obtained. The method has a seamless composite interface, and can effectively enhance the friction and mechanical properties.
Description
Technical field
The present invention relates to a kind of novel wear resistant material for sliding bearing and preparation method thereof, be specifically related to the method that a kind of ptfe composite prepares self-lubricating abrasive sliding bearing.
Background technique
Composite material sliding bearing is a kind of novel oil-free lubrication sliding bearing, some industrial departments are used very extensive at home, this bearing material is to be base material with the steel plate, sintering one deck bronze powder is as the mesosphere on base material, rolling thereon one deck high molecule plastic or polymer composite can selflubricatings as surface layer.It has given full play to the rigidity of metal and the self lubricity excellent characteristics of plastics, yet low, wear resistance of oil-free lubrication sliding bearing mechanical strength and the resistance to high temperature of producing rice like this are relatively poor, can not adapt to the actual conditions of high request.
The production technology of polyamide reinforced TFE is simple, and raw material sources are extensive, and cost is relatively low, is one of Application and Development thermoplastic composite material kind early.Polyamide reinforced TFE composite material has the advantage that the machine shaping cycle is short, renewable, reusable and mechanical property is good, can be used as the surface bears layer of composite bearing.Yet the compatibility between polyamide and the poly tetrafluoro ethylene matrix is relatively poor, be difficult to form chemical bond connection and interface layer and have immiscible component, interface binding intensity is low, compound tense forms space and defective easily on the interface, strengthen body and matrix resin and be difficult to be formed with effective adhesive, influence the performance of composite material overall performance, especially influence the tribological property of polyamide reinforced TFE composite material.Thereby cause the friction factor of composite material bigger, damage fricting couple piece easily, tribological property is relatively poor, and bearing or lining that this material is made can not be applied under many actual conditionss.Along with progress of science and technology, more and more higher to the bearing performance requirement, require it to have good friction and wear behavior, to adapt to the actual conditions of high request.
Summary of the invention
The present invention discloses the method that a kind of ptfe composite prepares self-lubricating plain bearing, its purpose is that the compatibility that overcomes between prior art polyamide and the poly tetrafluoro ethylene matrix is relatively poor, form space and defective on the compound tense interface easily, be difficult to be formed with effective adhesive; Cause the friction factor of composite material bigger, damage drawbacks such as fricting couple piece easily.Adopt the ptfe composite self-lubricating plain bearing of the inventive method preparation, not only its compound interface is seamless, can form effectively to connect, and effectively improve friction factor, have excellent more tribological property and mechanical property, and technological method of the present invention is simple, cost is low.
A kind of method of manufacturing slide bearing by using polytetrafluorethylecomposite composite material is characterized in that:
1) prepared polymer layer raw material:
Earlier with polyamide in 500 ℃ of-600 ℃ of muffle furnaces ablation 0.5-1 hour, the weight percentage that makes its surface organic matter residual quantity was below 1%; Then it is at room temperature immersed in the maleic anhydride solution, soak after 1-2 hour, filter, dry; Teflon, lead powder and polyamide are formed weight percentage 70-95% according to raw material: the ratio prepared polymer layer raw material of 1-5%: 4-25%;
2) be the bronze powder of 0.25-0.3 millimeter at steel plate upper berth one layer thickness, be in the same place with the substrate of steel plate sintering that the time is 2 hours at 800 ℃ of following copper powders of condition;
3) polymeric layer that a rolling layer thickness is the 0.01-0.03 millimeter on the bronze bisque of sintering, pressure is 30MPa, carries out sintering more then under nitrogen protection, 380 ℃ of conditions.
Described maleic anhydride solution, the weight percentages of components of maleic anhydride is: 10-20%.
The present invention at first carries out the surface graft modification pretreatment to polyamide; prepared polymer layer raw material; then at surface of steel plate sintering one deck bronze powder as the mesosphere; rolling one deck comprises the polymeric layer of the polyamide of handling through graft modification on the mesosphere; sintering, machining under the process nitrogen protection condition is modified and is rolled welding again, makes composite material sliding bearing.
The present invention is applicable to the sliding bearing of various polyamide reinforced TFE composite materials, and wherein polyamide comprises the aramid fiber polyamide of various models, as PA6, and PA11 etc.Teflon comprises with suspension polymerization and through the polyflon of the broken various trades mark that form of fine powder, as SM021 etc.
Advantage of the present invention and good effect are: the sliding bearing that adopts the ptfe composite preparation, not only its bonding surface is seamless, can form effectively and connect, and effectively improve friction factor, wear-resisting, selflubricating, have excellent more tribological property and mechanical property, and technological method of the present invention is simple, cost is low.
Embodiment
The present invention is described in detail below in conjunction with drawings and Examples, but present embodiment is not limited to the present invention, and every employing similarity method of the present invention and similar variation thereof all should be listed protection scope of the present invention in.
Embodiment 1:
The weight percentages of components of composite material sliding bearing polymeric layer is: teflon: 70%, and polyamide: 25%, lead powder: 5%.
Maleic anhydride-modified dose of each weight percentages of components is as follows: maleic anhydride: ethanol 10%: ethylenediamine tetra-acetic acid 85%: 5%.The composite bearing manufacture process is as follows:
At first, polyamide is carried out pretreatment, ablated 0.5 hour in 500 ℃ of-600 ℃ of muffle furnaces, the weight percentage that makes its surface organic matter residual quantity at room temperature immerses it in maleic anhydride solution then below 1%, soaks after 1 hour, filters, dries; At steel plate upper berth one layer thickness is 0.25 millimeter bronze powder, is in the same place with the substrate of steel plate sintering at 800 ℃ of following copper powders of condition, makes surface of steel plate sintering one deck bronze powder as the mesosphere, and the time is 2 hours; A rolling layer thickness is 0.01 millimeter a polymeric layer on the bronze powder mesosphere of sintering; pressure is 30MPa; under nitrogen protection, 380 ℃ of conditions, carry out sintering then, modify through machining again, at last through rolling, be welded into composite material self-lubricating plain bearing.
The sliding bearing for preparing is carried out tribology test, loading 3000N, Sliding velocity is that to record friction factor under the 3m/s condition be 0.035.
Embodiment 2:
The weight percentages of components of composite material sliding bearing polymeric layer is: teflon: 95%, and polyamide: 4%, lead powder: 1%.
Maleic anhydride-modified dose of each weight percentages of components is as follows: maleic anhydride: ethanol 20%: ethylenediamine tetra-acetic acid 70%: 5%.
The composite bearing manufacture process is as follows:
At first, carbon fiber is carried out pretreatment, ablated 1 hour in 500 ℃ of-600 ℃ of muffle furnaces, the weight percentage that makes its surface organic matter residual quantity at room temperature immerses it in maleic anhydride solution then below 1%, soaks after 2 hours, filters, dries; At steel plate upper berth one layer thickness is 0.3 millimeter bronze powder, is in the same place with the substrate of steel plate sintering at 800 ℃ of following copper powders of condition, makes surface of steel plate sintering one deck bronze powder as the mesosphere, and the time is 2 hours; A rolling layer thickness is 0.02 millimeter a polymeric layer on the bronze powder mesosphere of sintering; pressure is 30MPa; under nitrogen protection, 380 ℃ of conditions, carry out sintering then, modify through machining again, at last through rolling, be welded into composite material self-lubricating plain bearing.
Adopting the method that loads step by step under the certain speed to investigate the tribological property of the composite bearing that makes on the MPV-20 type friction wear testing machine, Sliding velocity is 1m/s, and sliding time is that 2 hours wear extent is 0.5g.
Embodiment 3:
The weight percentages of components of composite material sliding bearing polymeric layer is: teflon: teflon: 80%, and polyamide: 17%, lead powder: 3%.
Maleic anhydride-modified dose of each weight percentages of components is as follows: maleic anhydride: ethanol 19%: ethylenediamine tetra-acetic acid 80%: 1%.
The composite bearing manufacture process is as follows:
At first, carbon fiber is carried out pretreatment, ablated 1 hour in 500 ℃ of-600 ℃ of muffle furnaces, the weight percentage that makes its surface organic matter residual quantity at room temperature immerses it in maleic anhydride solution then below 1%, soaks after 1.5 hours, filters, dries; At steel plate upper berth one layer thickness is 0.3 millimeter bronze powder, is in the same place with the substrate of steel plate sintering at 800 ℃ of following copper powders of condition, makes surface of steel plate sintering one deck bronze powder as the mesosphere, and the time is 2 hours; A rolling layer thickness is 0.03 millimeter a polymeric layer on the bronze powder mesosphere of sintering; pressure is 30MPa; under nitrogen protection, 380 ℃ of conditions, carry out sintering then, modify through machining again, at last through rolling, be welded into composite material self-lubricating plain bearing.
Adopting the method that loads step by step under the certain speed to investigate the tribological property of the composite bearing that makes on the MPV-20 type friction wear testing machine, Sliding velocity is 2m/s, and the bearing limit PV value is 42.6MPam/s.
Claims (2)
1. the method for a manufacturing slide bearing by using polytetrafluorethylecomposite composite material is characterized in that:
1) preparation polymeric layer:
Earlier with polyamide in 500 ℃ of-600 ℃ of muffle furnaces ablation 0.5-1 hour, the weight percentage that makes its surface organic matter residual quantity was below 1%; Then it is at room temperature immersed in the maleic anhydride solution, soak after 1-2 hour, filter, dry; Teflon, lead powder and polyamide are formed weight percentage 70-95% according to raw material: the ratio prepared polymer layer raw material of 1-5%: 4-25%;
2) be the bronze powder of 0.25-0.3 millimeter at steel plate upper berth one layer thickness, be in the same place with the substrate of steel plate sintering that the time is 2 hours at 800 ℃ of following copper powders of condition;
3) polymeric layer that a rolling layer thickness is the 0.01-0.03 millimeter on the bronze bisque of sintering, pressure is 30MPa, carries out sintering more then under nitrogen protection, 380 ℃ of conditions.
2. the method for a kind of manufacturing slide bearing by using polytetrafluorethylecomposite composite material according to claim 1, it is characterized in that: described maleic anhydride solution, the segmentation weight percentage of maleic anhydride is: 10-20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100424677A CN101408223A (en) | 2008-09-04 | 2008-09-04 | Method for manufacturing slide bearing by using polytetrafluorethylene composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100424677A CN101408223A (en) | 2008-09-04 | 2008-09-04 | Method for manufacturing slide bearing by using polytetrafluorethylene composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101408223A true CN101408223A (en) | 2009-04-15 |
Family
ID=40571374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100424677A Pending CN101408223A (en) | 2008-09-04 | 2008-09-04 | Method for manufacturing slide bearing by using polytetrafluorethylene composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101408223A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591268A (en) * | 2018-04-28 | 2018-09-28 | 天津大学 | A kind of lightweight low-friction coefficient high abrasion sliding bearing and preparation method thereof |
| CN108644233A (en) * | 2018-04-28 | 2018-10-12 | 天津大学 | A kind of full working scope high abrasion sliding bearing and preparation method thereof |
| CN114043741A (en) * | 2021-11-17 | 2022-02-15 | 江苏立一新材料科技有限公司 | Processing method of composite material for sliding bearing |
| CN116836511A (en) * | 2023-08-30 | 2023-10-03 | 燕山大学 | Manufacturing method of three-layer composite self-lubricating bearing bush for inner curve hydraulic motor |
-
2008
- 2008-09-04 CN CNA2008100424677A patent/CN101408223A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591268A (en) * | 2018-04-28 | 2018-09-28 | 天津大学 | A kind of lightweight low-friction coefficient high abrasion sliding bearing and preparation method thereof |
| CN108644233A (en) * | 2018-04-28 | 2018-10-12 | 天津大学 | A kind of full working scope high abrasion sliding bearing and preparation method thereof |
| CN114043741A (en) * | 2021-11-17 | 2022-02-15 | 江苏立一新材料科技有限公司 | Processing method of composite material for sliding bearing |
| CN116836511A (en) * | 2023-08-30 | 2023-10-03 | 燕山大学 | Manufacturing method of three-layer composite self-lubricating bearing bush for inner curve hydraulic motor |
| CN116836511B (en) * | 2023-08-30 | 2023-11-28 | 燕山大学 | Manufacturing method of three-layer composite self-lubricating bearing bush for inner curve hydraulic motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101538279B1 (en) | Three-layer composite self-lubricating sliding bearing with modified polyimide wear layer and preparation method thereof | |
| CN100463940C (en) | Bridge bearing gliding material and method for preparing the same | |
| CN100365055C (en) | Process for preparing rare earth modified carbon nanotube/polytetrafluoroethylene composite materials | |
| CN101544080B (en) | Metal and plastic composite self-lubricating material and preparation method thereof | |
| CN101629601B (en) | High molecular abrasion-proof bearing bush | |
| CN101408223A (en) | Method for manufacturing slide bearing by using polytetrafluorethylene composite material | |
| CN102093716B (en) | Polyphenylene sulfide/polyether sulfone-based compound material and preparation method thereof as well as wear-resistant part prepared from polyphenylene sulfide/polyether sulfone-based compound material | |
| CN101655127A (en) | Method for preparing sliding bearing by using polyether-ether-ketone composite material | |
| CN1400094A (en) | Plastics steel back self-lubricating wear-resisting composite material and its preparation method | |
| CN106079771A (en) | A kind of vibration damping wear-resistant self-lubricating axle sleeve and preparation method thereof | |
| CN101671465B (en) | Preparation method of ethoxyline resin/polytetrafluoroethylene composite material | |
| CN101407633A (en) | Method for preparing slide bearing by using polyimide composite material | |
| CN103497483A (en) | Polymer metal wear-resistant self-lubricating composite material, production method thereof, and guide bearing | |
| CN100354541C (en) | Production of self-lubricating abrasive sliding bearing from polytef composite material | |
| Saravanan et al. | Sustainable tribology: Processing and characterization of multiscale thermoplastic composites within hydropower applications | |
| CN102785428A (en) | Wear resistant and self-lubricating PPS (polyphenylene sulfide)-metallic composite and preparation method thereof | |
| CN100364718C (en) | Method for preparing sliding bearing of nano AI2O3/polyimide friction compound material | |
| CN105524412A (en) | Antistatic peek resin material and preparation method thereof | |
| CN103568395B (en) | Wear-resisting and self-lubricating polyether sulfone (PES)/metal composite material and preparation method thereof | |
| CN1487021A (en) | Prepn of RE-modified composite aramid fiber/PTFE material | |
| CN1487022A (en) | Prepn of RE-modified composite glass fiber/PTFE material | |
| KR101910155B1 (en) | Method for manufacturing surface contact bearing with carbon fiber fabric - fluoride resin composite | |
| Qiu et al. | Effect of ambient temperature on the formation mechanism of PTFE liner transfer film of spherical plain bearings | |
| CN104650579A (en) | Composite type anti-friction nylon material and production process thereof | |
| CN109705503A (en) | A kind of fluorine-containing wear-resistant material and the preparation method and application 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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090415 |