CN102678755B - Unleaded steel backing copper radical self-lubricating bearing - Google Patents
Unleaded steel backing copper radical self-lubricating bearing Download PDFInfo
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- CN102678755B CN102678755B CN201210160583.5A CN201210160583A CN102678755B CN 102678755 B CN102678755 B CN 102678755B CN 201210160583 A CN201210160583 A CN 201210160583A CN 102678755 B CN102678755 B CN 102678755B
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- Sliding-Contact Bearings (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of unleaded steel backing copper radical self-lubricating bearing, comprise the steel-backed bearing matrix be made up of low carbon steel, copper base working surface is compounded with inside bearing matrix, described copper base face surface is provided with plural oily cave and runs through the oil hole of bearing matrix and copper base working surface, and oil hole is connected with the oil groove being located at copper base face surface.The present invention passes through at the oily cave of copper base face surface setting, oil hole and oil groove device, and the copper-based material of binding ability excellence, realizes the normal use of unleaded steel backing copper radical self-lubricating bearing under different lubricating condition, load-up condition.
Description
Technical field
The present invention relates to a kind of self oiling bearing, particularly relate to unleaded steel backing copper radical self-lubricating bearing.
Background technique
Sliding bearing is very important friction easily damaged parts in automobile, forms important friction pair with automobile generating machine crankshaft, wrist pin, camshaft.The material property of sliding bearing affects to a certain extent or decides the working life of automobile and generator.The sliding bearing working surface that existing market uses is mostly cupro lead, often be distributed on hard Copper substrate with independently plumbous particle (soft phase) because lead is insoluble to copper, form the tissue of soft point that hard matrix distributes, although this kind of alloy has the advantages such as good compliance, embeddability, corrosion resistance and technology capability are good, but because its fatigue resistance is lower, easily there is fatigue crack and the technological deficiency such as to peel off in alloy-layer, the automobile engine bearing that can only be adapted to small-sized, underloading uses, and carries in inapplicable middling speed and low speed height such as to carry at the occasion.
A kind of bimetal self-lubricating bearing disclosed in the Chinese utility model patent patent No. 98238627.3, the copper/copper alloy bearing layer of sintering containing solid lubricant on steel back layer, bearing layer surface is the running-in layer that a solid lubrication agent content is higher.This kind of self oiling bearing is also just adapted to small-sized, underloading occasion and uses, and carries in inapplicable middling speed and low speed height such as to carry at the occasion.
Summary of the invention
The invention provides a kind of structure simple, be applicable to carry in middling speed and low speed height such as to carry at the occasion, the unleaded steel backing copper radical self-lubricating bearing that can use under different lubricating condition.
A kind of unleaded steel backing copper radical self-lubricating bearing, comprise the steel-backed bearing matrix be made up of low carbon steel, copper base working surface is compounded with inside bearing matrix, described copper base face surface is provided with plural oily cave and runs through the oil hole of bearing matrix and copper base working surface, and oil hole is connected with the oil groove being located at copper base face surface.This kind, by arranging plural oily cave structure at copper base face surface in conjunction with oil hole and oil groove device, realizes that the work oil mass of lubricant oil on copper base working surface is adjustable guarantees that unleaded steel backing copper radical self-lubricating bearing normally uses under different lubricating condition.
Described copper base working surface composition is for containing weight percent meter: 80-90% copper, 1.5-5% tin, 3-5% nickel, 1.5-3% bismuth, 1-2% neodymium, 3-5% graphite.This kind by adding the alloying constituents such as graphite, tin, nickel, bismuth, neodymium in Cuprum alloy composition, to form the leadless copper base composite material with self-lubricating property, the advantage of the antifriction materials such as comprehensive graphite, tin, nickel, bismuth, neodymium, make up the deficiency of single alloy, to meet the requirement of automobile, the batch production of modern machines low-speed heave-load.
The manufacturing process of unleaded steel backing copper radical self-lubricating bearing, comprises the steps:
One, obtain tabular low carbon steel steel plate surface cleaning process, copper, tin, nickel, bismuth, neodymium are made powder mixing for standby use simultaneously.
Two, after powdered graphite being carried out Nickel Plating Treatment, in mill, granularity is made for subsequent use at the solid lubricating powder of 47 ~ 61um.
Three, the mixed-powder that on surface of steel plate uniform spreading, copper, tin, nickel, bismuth, neodymium are made, repaves the solid lubricating powder that step 2 obtains, and enters sintering furnace sintering and obtains the Clad Steel Plate being compounded with copper-based metallic material.Sintering furnace sintering temperature is set to 900-1000 degree.
Four, Clad Steel Plate is obtained desirable alloyage tissue by rolling, Clad Steel Plate surface copper base metal layer through rolling is carried out machining and obtains oil hole, oily cave, oil groove respectively, then circle is rolled into, joint weld connects and carries out surface treatment by numerically control grinder and finally obtain the steel-backed bearing matrix be made up of low carbon steel, is compounded with the unleaded steel backing copper radical self-lubricating bearing of copper base working surface inside bearing matrix.
This kind of manufacturing process solves conventional solid oiling agent by the powdered graphite of nickel plating as solid lubricant and copper base alloy voids is higher, the technological deficiency that alloy microstructure relatively loosens.The mixed-powder that the powdered graphite of nickel plating and copper, tin, nickel, bismuth, neodymium are made in sintering process along with the raising of sintering temperature, alloy microstructure atomic motion aggravates, diffusion coefficient sharply increases, substantially increase diffusion velocity and diffusion, voids is reduced, alloy becomes relatively fine and close, and micro-penetration hardness increases, and obtains the copper base working surface of high-wear resistance and high-fatigue strength.Adopt rolling, machining, roll, not only materials'use rate is high, reject rate is low, improve working conditions, reduce cost of production for product that the manufacture method of the short route such as machining obtains, and the combination property of product is improved.
The present invention passes through at the oily cave of copper base face surface setting, oil hole and oil groove device, and the copper-based material of binding ability excellence, realizes the normal use of unleaded steel backing copper radical self-lubricating bearing under different lubricating condition, load-up condition.
Accompanying drawing explanation
Be illustrated in figure 1 the present invention's unleaded steel backing copper radical self-lubricating bearing structure schematic diagram.
Embodiment
A kind of unleaded steel backing copper radical self-lubricating bearing as shown in Figure 1, comprise the steel-backed bearing matrix 1 be made up of low carbon steel, copper base working surface 2 is compounded with inside bearing matrix 1, copper base working surface 2 surface is provided with plural oily cave 5 and runs through the oil hole 3 of bearing matrix 1 and copper base working surface 2, and oil hole 3 is connected with the oil groove 4 being located at copper base working surface 2 surface.
As structure preferably copper base working surface 2 composition for containing weight percent meter: 80-90% copper, 1.5-5% tin, 3-5% nickel, 1.5-3% bismuth, 1-2% neodymium, 3-5% graphite.
The manufacturing process of above-mentioned unleaded steel backing copper radical self-lubricating bearing, comprises the steps:
One, obtain tabular low carbon steel steel plate surface cleaning process, copper, tin, nickel, bismuth, neodymium are made powder mixing for standby use simultaneously.
Two, after powdered graphite being carried out Nickel Plating Treatment, in mill, granularity is made for subsequent use at the solid lubricating powder of 47 ~ 61um.
Three, the mixed-powder that on surface of steel plate uniform spreading, copper, tin, nickel, bismuth, neodymium are made, repaves the solid lubricating powder that step 2 obtains, and enters sintering furnace sintering and obtains the Clad Steel Plate being compounded with copper-based metallic material.Sintering furnace sintering temperature is set to 900-1000 degree.
Four, Clad Steel Plate is obtained desirable alloyage tissue by rolling, Clad Steel Plate surface copper base metal layer through rolling is carried out machining and obtains oil hole 3, oily cave 5, oil groove 4 respectively, then circle is rolled into, joint weld connects and carries out surface treatment by numerically control grinder and finally obtain the steel-backed bearing matrix 1 be made up of low carbon steel, is compounded with the unleaded steel backing copper radical self-lubricating bearing of copper base working surface 2 inside bearing matrix 1.
The weight proportion of copper in above-mentioned steps, tin, nickel, bismuth, neodymium, graphite gross weight to be 100KG be example is:
Claims (1)
1. a unleaded steel backing copper radical self-lubricating bearing, comprise the steel-backed bearing matrix (1) be made up of low carbon steel, bearing matrix (1) inner side is compounded with copper base working surface (2), copper base working surface (2) surface is also provided with oil groove (4), oil groove (4) connects the oil hole (3) running through bearing matrix (1) and copper base working surface (2), it is characterized in that: described copper base working surface (2) surface is provided with plural oily cave (5); Described copper base working surface (2) composition is for containing weight percent meter: 80-90% copper, 1.5-5% tin, 3-5% nickel, 1.5-3% bismuth, 1-2% neodymium, 3-5% graphite; The manufacturing process of described unleaded steel backing copper radical self-lubricating bearing, comprises the steps:
One, obtain tabular low carbon steel steel plate surface cleaning process, copper, tin, nickel, bismuth, neodymium are made powder mixing for standby use simultaneously;
Two, after powdered graphite being carried out Nickel Plating Treatment, in mill, granularity is made for subsequent use at the solid lubricating powder of 47 ~ 61um;
Three, the mixed-powder that on surface of steel plate uniform spreading, copper, tin, nickel, bismuth, neodymium are made, repaves the solid lubricating powder that step 2 obtains, and enters sintering furnace sintering and obtains the Clad Steel Plate being compounded with copper-based metallic material; Sintering furnace sintering temperature is set to 900-1000 degree;
Four, Clad Steel Plate is obtained desirable alloyage tissue by rolling, Clad Steel Plate surface copper base metal layer through rolling is carried out machining and obtains oil hole (3), oily cave (5), oil groove (4) respectively, then circle is rolled into, joint weld connects and carries out surface treatment by numerically control grinder and finally obtain the steel-backed bearing matrix (1) be made up of low carbon steel, and bearing matrix (1) inner side is compounded with the unleaded steel backing copper radical self-lubricating bearing of copper base working surface (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210160583.5A CN102678755B (en) | 2012-05-15 | 2012-05-15 | Unleaded steel backing copper radical self-lubricating bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210160583.5A CN102678755B (en) | 2012-05-15 | 2012-05-15 | Unleaded steel backing copper radical self-lubricating bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102678755A CN102678755A (en) | 2012-09-19 |
| CN102678755B true CN102678755B (en) | 2015-08-05 |
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| CN201210160583.5A Expired - Fee Related CN102678755B (en) | 2012-05-15 | 2012-05-15 | Unleaded steel backing copper radical self-lubricating bearing |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103555989B (en) * | 2013-10-22 | 2016-02-24 | 中南大学 | A kind of copper-base powder metallurgy self-lubricating abrasion-proof material and preparation technology thereof |
| CN103697063A (en) * | 2013-12-20 | 2014-04-02 | 嘉兴市中诚自润轴承有限公司 | Oil storage cavity bearing steel bushing |
| CN104895926B (en) * | 2014-03-03 | 2020-10-09 | 保来得株式会社 | Sintered bearing |
| CN103994147A (en) * | 2014-05-16 | 2014-08-20 | 金迪荣 | Multi-layer compound wear-resistant balanced bearing and manufacturing technique thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB871001A (en) * | 1956-12-19 | 1961-06-21 | English Electric Co Ltd | Improvements in and relating to journal bearings |
| CN101576118A (en) * | 2009-06-15 | 2009-11-11 | 合肥工业大学 | Unleaded Cu-based sliding bearing material and preparation method thereof |
| CN201461740U (en) * | 2009-05-11 | 2010-05-12 | 封仪 | Thermometal extrusion bushing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202140439U (en) * | 2011-06-20 | 2012-02-08 | 吴江同新自润滑轴承厂 | Shaft sleeve structure |
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2012
- 2012-05-15 CN CN201210160583.5A patent/CN102678755B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB871001A (en) * | 1956-12-19 | 1961-06-21 | English Electric Co Ltd | Improvements in and relating to journal bearings |
| CN201461740U (en) * | 2009-05-11 | 2010-05-12 | 封仪 | Thermometal extrusion bushing |
| CN101576118A (en) * | 2009-06-15 | 2009-11-11 | 合肥工业大学 | Unleaded Cu-based sliding bearing material and preparation method thereof |
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| CN102678755A (en) | 2012-09-19 |
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Granted publication date: 20150805 Termination date: 20160515 |