CN1800668A - Composite material for sliding bearing and preparation method thereof - Google Patents
Composite material for sliding bearing and preparation method thereof Download PDFInfo
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- CN1800668A CN1800668A CN 200510120729 CN200510120729A CN1800668A CN 1800668 A CN1800668 A CN 1800668A CN 200510120729 CN200510120729 CN 200510120729 CN 200510120729 A CN200510120729 A CN 200510120729A CN 1800668 A CN1800668 A CN 1800668A
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- sliding bearing
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Abstract
The invention relates to a composite sliding bearing material and relative preparation method. It comprises a common babbit and carbon nanometer pipe. Wherein, the common babbit is the basic material and the carbon nanometer pipe is a reinforced element. Said common babbit is lead or tin alloy. The preparation method comprises: the common babbit basic material and the carbon nanometer pipe reinforced element are compounded via electric deposition. The electric deposition method comprises following steps: (1) processing plating-before process on the common sliding bearing steel back; (2) plating in the plating solution in the electric plating groove. The plating-before process is using 10g/L metal cleaning solution to wash in ultrasonic for several minutes to be washed via tap water. And the plating solution comprises the components as: Sn(BF4)2: 8-12g/L; Pb(BF4)2: 3-6g/L; HBF: 350-420g/L; glutin: 4g/L and carbon nanometer pipe: 0.5-1g/L. the invention ahs high carrying ability, long service life, and simple producing method.
Description
1, technical field:
The present invention is a kind of composite material for sliding bearing and preparation method thereof, belongs to the innovative technology of material for sliding bearing and preparation method thereof.
2, background technique:
Antifriction metal is divided into two big classes at present, i.e. " soft matrix stiffened particle type " and " hard matrix adds soft some type ", the former tribological property is good, bearing capacity is relatively poor, hot strength is low, as Babbitt, it is a kind of tinbase or lead base mild alloy with antifriction characteristic, hardness has only HB13-35, owing to its excellent friction characteristic is widely used in internal-combustion engine, the bearing material of motor car engine, its tissue characteristic is, on soft phase matrix, be uniform-distribution with hard phase particle, soft phase matrix makes alloy have extraordinary mosaicism, compliance and seizure resistance, and after break-in, soft matrix indent, hard point evagination, make to form micro-gap between the slip surface, become store oil space and grease channel, be beneficial to antifriction; The hard point of epirelief play supporting role, and helps carrying.(said here mosaicism is meant foreign matter and grit embedding friction surface and does not expose in case abrade mating plate; Compliance then is meant the adaptability of top layer to foozle, stand under load distortion and surface roughness.) another kind of bearing metal adds soft point by hard matrix and form, its bearing capacity is higher than Babbitt, but is cost with the sacrificial surface tribological property often, and its surperficial compliance, mosaicism, running-in ability hinder axle easily not as Babbitt.
Along with modern unit to speed up, large scale development, the bearing capacity and the reliability of convection cell lubrication sliding bearing are had higher requirement, make the deficiency of Babbitt bearing capacity, " hard matrix adds soft some type " not good problem of tribological property of bearing material becomes increasingly conspicuous, this just requires bearing material when possessing good antifriction quality, must possess good bearing capacity and wear resistance.Therefore, people urgently wish the level that produces and the higher bearing material of technical performance index.As seen, researching and developing high performance bearing metal has important practical significance.
Since carbon nano-tube was found, because its novel structure and excellent mechanics, physics, chemical property and become the research focus of material science rapidly, the average young modulus of CNT was 1.8Tpa, and average flexural strength is up to 14.2Gpa; The tensile strength of CNT is 100 times of steel, and density only is 1/6 of steel, therefore be considered to prepare the desirable reinforcing material of superpower composite material, simultaneously, the structure of multiple-wall carbon nanotube is the hollow circular cylinder that concentric graphite face surrounds, has special excellent self-lubricating property, also can reduce the friction factor of material significantly as the enhancing body of composite material, improve wear resistance effectively, therefore, utilize the compound bearing capacity height for preparing of carbon nano-tube and soft matrix alloy, the bearing material of long service life should be a brand-brand-new way, and has a bright future.
3, summary of the invention:
The objective of the invention is to overcome above-mentioned shortcoming and provide a kind of bearing capacity height, the composite material for sliding bearing of long service life.
Another object of the present invention is to provide a kind of preparation method who closes material for sliding bearing simply and easily.
Composite material for sliding bearing of the present invention includes common Babbitt and carbon nano-tube, and wherein common Babbitt is a matrix, and carbon nano-tube is for strengthening body.
Above-mentioned common Babbitt is lead or kamash alloy.
The preparation method of composite material for sliding bearing of the present invention, common Babbitt matrix and carbon nano-tube strengthen body and are combined with each other by electro-deposition.
Above-mentioned electro-deposition method includes following steps:
1) the plain bearing steel backing is plated pretreatment;
2) plating in the plating bath of plating tank.
Above-mentioned plain bearing steel backing plates pretreatment and cleaned several minutes in ultrasound for adopting the 10g/L metal cleaner, again through the tap water rinsing.
Above-mentioned plating bath includes following component: Sn (BF
4)
2: 8～12g/L, Pb (BF
4)
2: 3～6g/L, HBF:350～420g/L, gelatin: 4g/L, carbon nano-tube: 0.5～1g/L.
Be added with micro-surface active agent in the above-mentioned plating bath.
Above-mentioned carbon nano-tube is placed in the plating bath after adopting acid treatment.
Pass through machinery or ultrasonic agitation plating bath in the above-mentioned plating process.
The present invention compared with prior art has following advantage:
1) " soft matrix+carbon nano-tube " of the present invention type composite bearing material, utilize the peculiar property of carbon nano-tube to improve the tribological property of bearing metal, improve its wear resistance and fatigue resistance, utilizing the Stress Transfer and the uniform bearing capacity that is used for improving composite deposite of carbon nano-tube in the coating, is a kind of brand-new composite bearing material;
2) the present invention is by the composition of appropriate design composite deposite, the proportioning of all kinds of metal ions in the volume fraction of carbon nano-tube, the adjustment plating bath in the control composite deposite, reach the rising of control coating hardness, do not damage the purpose of its compliance, embedding Tibetan property, avoid alloying strengthening to cause the problem that matrix hardness is too high or hard too much loses its tribological property mutually, captured the technical barrier that Babbitt is strengthened.
3) Means of Electrodeposition of the present invention prepares the carbon nano-tube reinforced composite, can prevent in the high temperature recombination process effectively, the problem that carbon nano-tube is difficult to disperse, and can prevent effectively in the high temperature recombination process owing to excessive interface reaction forms the fragility interface, causes the problem of material monolithic decreased performance.
Composite material for sliding bearing bearing capacity height of the present invention, long service life, the preparation method of composite material for sliding bearing of the present invention is simple and practical.
4, embodiment:
Embodiment 1:
Composite material for sliding bearing of the present invention includes common Babbitt and carbon nano-tube, and wherein common Babbitt is a matrix, and carbon nano-tube is for strengthening body.
Above-mentioned common Babbitt is lead or kamash alloy.
The preparation method of composite material for sliding bearing of the present invention, common Babbitt matrix and carbon nano-tube strengthen body and are combined with each other by electro-deposition.
Above-mentioned electro-deposition method includes following steps:
1) the plain bearing steel backing is plated pretreatment;
2) plating in the plating bath of plating tank.
Above-mentioned plain bearing steel backing plates pretreatment and cleaned several minutes in ultrasound for adopting the 10g/L metal cleaner, again through the tap water rinsing.
In the present embodiment, being plated material is the plain bearing steel backing, and anode material is a stereotype.
Above-mentioned plating bath includes following component: Sn (BF
4)
2: 8～12g/L, Pb (BF
4)
2: 3～6g/L, HBF:350～420g/L, gelatin: 4g/L, carbon nano-tube: 0.5～1g/L.In the present embodiment, plating bath includes following component: Sn (BF
4)
2: 10g/L, Pb (BF
4)
2: 6g/L, HBF:400g/L, gelatin: 4g/L, carbon nano-tube: 0.5g/L.In addition, be added with micro-surface active agent in the above-mentioned plating bath, make carbon nano tube surface form charged layer.
Above-mentioned carbon nano-tube is placed in the plating bath after adopting acid treatment.Acid treatment not only can make carbon nano-tube become pure, can also form carboxyl, aldehyde radical and some contain the oxygen functional group in carbon nano tube surface, improves the wellability of carbon nano-tube and solution.Pass through machinery or ultrasonic agitation plating bath in the above-mentioned plating process.
In the present embodiment, the current density of plating technology is 3A/dm
2, plating time is 30 minutes, can obtain the bearing material thickness of coating to be: 200 μ m, hardness 32.1HB.
The present invention utilizes carbon nano-tube as reinforcing phase, adopt the composite bearing material of composite electrodeposition method preparation " soft matrix alloy (tinbase or lead base) adds carbon nano-tube " can popular metaphor become the past " adobe " in rural area, it is mixed and made into by clay and straw, straw has wherein improved the strength and toughness of " adobe " greatly, and the hardness of " adobe " is constant substantially, " clay " in the new bearing material model is exactly tinbase or lead based alloy, " straw " is exactly carbon nano-tube, the effect of carbon nano-tube is intensity and the toughness that increases bearing material, this novel bearing material improves its bearing capacity again greatly in the compliance and the mosaicism that keep soft matrix stiffened particle profile shaft to hold alloy.
Embodiment 2:
Present embodiment is identical with embodiment 1, and difference is that the current density of plating technology is 2A/dm
2, plating time is 35 minutes, can obtain the bearing material thickness of coating to be: 180 μ m, hardness 28.6HB.
Claims (9)
1, a kind of composite material for sliding bearing is characterized in that including common Babbitt and carbon nano-tube, and wherein common Babbitt is a matrix, and carbon nano-tube is for strengthening body.
2, composite material for sliding bearing according to claim 1 is characterized in that above-mentioned common Babbitt is lead or kamash alloy.
3, a kind of preparation method according to the described composite material for sliding bearing of claim 1 is characterized in that above-mentioned common Babbitt matrix and carbon nano-tube strengthen body and be combined with each other by electro-deposition.
4,, it is characterized in that above-mentioned electro-deposition method includes following steps according to the preparation method of the described composite material for sliding bearing of claim 3:
1) the plain bearing steel backing is plated pretreatment;
2) plating in the plating bath of plating tank.
5, the preparation method of composite material for sliding bearing according to claim 4 is characterized in that above-mentioned plain bearing steel backing plates pretreatment and cleaned several minutes in ultrasound for adopting the 10g/L metal cleaner, again through the tap water rinsing.
6, the preparation method of composite material for sliding bearing according to claim 4 is characterized in that above-mentioned plating bath includes following component: Sn (BF
4)
2: 8～12g/L, Pb (BF
4)
2: 3～6g/L, HBF:350～420g/L, gelatin: 4g/L, carbon nano-tube: 0.5～1g/L.
7, the preparation method of composite material for sliding bearing according to claim 6 is characterized in that being added with in the above-mentioned plating bath micro-surface active agent.
8, the preparation method of composite material for sliding bearing according to claim 6 is characterized in that being placed in the plating bath after above-mentioned carbon nano-tube adopts acid treatment.
9,, it is characterized in that in the above-mentioned plating process by machinery or ultrasonic agitation plating bath according to the preparation method of each described composite material for sliding bearing of claim 4 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101207293A CN100516570C (en) | 2005-12-19 | 2005-12-19 | Composite material for sliding bearing and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101207293A CN100516570C (en) | 2005-12-19 | 2005-12-19 | Composite material for sliding bearing and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1800668A true CN1800668A (en) | 2006-07-12 |
| CN100516570C CN100516570C (en) | 2009-07-22 |
Family
ID=36810824
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101207293A Expired - Fee Related CN100516570C (en) | 2005-12-19 | 2005-12-19 | Composite material for sliding bearing and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100516570C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104105821A (en) * | 2011-12-09 | 2014-10-15 | 马勒国际有限公司 | Method of manufacturing sliding bearing |
| CN104136792A (en) * | 2011-12-08 | 2014-11-05 | 马勒国际有限公司 | Sliding bearing |
| CN104454998A (en) * | 2014-12-23 | 2015-03-25 | 常熟市董浜镇徐市嘉峰机械厂 | Bearing with surface carburization treatment |
| CN104500579A (en) * | 2014-12-23 | 2015-04-08 | 常熟市董浜镇徐市嘉峰机械厂 | Surface thermal treatment bearing |
| CN104500580A (en) * | 2014-12-23 | 2015-04-08 | 常熟市董浜镇徐市嘉峰机械厂 | Surface annealing treatment bearing |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1375542A (en) * | 1971-10-21 | 1974-11-27 | ||
| JP2004036649A (en) * | 2002-06-28 | 2004-02-05 | Shinano Kenshi Co Ltd | Shaft, bearing, and motor |
-
2005
- 2005-12-19 CN CNB2005101207293A patent/CN100516570C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104136792A (en) * | 2011-12-08 | 2014-11-05 | 马勒国际有限公司 | Sliding bearing |
| US9453532B2 (en) | 2011-12-08 | 2016-09-27 | Mahle International Gmbh | Sliding bearing |
| CN104105821A (en) * | 2011-12-09 | 2014-10-15 | 马勒国际有限公司 | Method of manufacturing sliding bearing |
| CN104454998A (en) * | 2014-12-23 | 2015-03-25 | 常熟市董浜镇徐市嘉峰机械厂 | Bearing with surface carburization treatment |
| CN104500579A (en) * | 2014-12-23 | 2015-04-08 | 常熟市董浜镇徐市嘉峰机械厂 | Surface thermal treatment bearing |
| CN104500580A (en) * | 2014-12-23 | 2015-04-08 | 常熟市董浜镇徐市嘉峰机械厂 | Surface annealing treatment bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100516570C (en) | 2009-07-22 |
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Granted publication date: 20090722 Termination date: 20111219 |