CN102537067B - Bearing substrate layer - Google Patents
Bearing substrate layer Download PDFInfo
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- CN102537067B CN102537067B CN201110420000.3A CN201110420000A CN102537067B CN 102537067 B CN102537067 B CN 102537067B CN 201110420000 A CN201110420000 A CN 201110420000A CN 102537067 B CN102537067 B CN 102537067B
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- substrate layer
- nickeline
- bearing substrate
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Abstract
The invention discloses a bearing substrate layer. The bearing substrate layer is a copper alloy layer, specifically is powder sintered compact composed of tin, nickel, silver and copper alloy; the weight percentage of each element in the tin, nickel, silver and copper alloy is as follows: tin 6-10%, nickel 0.7-1.3%, silver 0.6-2%, and copper in balance. The bearing substrate layer of the invention does not contain lead, and thus the bearing substrate layer is environmentally friendly without pollution. The bearing capacity is high, and the bearing substrate layer is featured with corrosion resistance, high temperature resistance, and good stability without deformation.
Description
Technical field
The present invention relates to bearing shell technical field, relate in particular to a kind of base layer of bearing shell.
Background technique
Bearing shell is one of important component of bearing, is sliding bearing and the tactile part that is coupling, and Main Function is the active force that applies of carrying axle journal, keep oil film stablize, make bearing to work reposefully and reduce the frictional loss of bearing.Therefore it is one of part of motor most critical, and the quality of bearing shell performance directly affects the performance of motor.Along with internal-combustion engine to height carry, environmental protection future development, requirement to bearing shell performance improves constantly, require bush material not only to have high bearing capacity and fatigue resistance, there is good environmental-protecting performance simultaneously, also there is no a kind of material for sliding bearing that can meet above-mentioned requirements at present.
Traditional copper-based alloy bearing bush base layer is a kind of copper-lead bimetal steel band (as CuPb20Sn4, CuPb24Sn etc.), and it is widely used on high-mechanic internal-combustion engine.But content plumbous in this material is higher, larger to environmental disruption, does not meet social development needs, so substitute the environment protection type bearing substrate layer alloy material of traditional copper base alloy material in the urgent need to a kind of energy.
Summary of the invention
The object of this invention is to provide a kind of bearing shell that makes and there is high bearing capacity, high, the environment friendly and pollution-free bearing bush base layer of fatigue resistance.
Technological scheme of the present invention is:
A kind of bearing substrate layer, described bearing substrate layer is copper alloy layer, the sintered powder being formed by tin nickeline Cuprum alloy, in tin nickeline Cuprum alloy, the weight percent proportioning of each element is: tin 6 ~ 10%, nickel 0.7 ~ 1.3%, silver 0.6 ~ 2%,, surplus is copper.
The weight percent proportioning of tin nickeline Cuprum alloy can be specifically:
Tin 8% in described tin nickeline Cuprum alloy, nickel 1.3%, silver 2%,, surplus is copper.
Tin 8% in described tin nickeline Cuprum alloy, nickel 1%, silver 0.6%,, surplus is copper.
Tin 10% in described tin nickeline Cuprum alloy, nickel 0.7%, silver 2%,, surplus is copper.
Tin 6% in described tin nickeline Cuprum alloy, nickel 1.2%, silver 1%,, surplus is copper.
Tin 7.5% in described tin nickeline Cuprum alloy, nickel 0.8%, silver 1.5%,, surplus is copper.
The invention also discloses the manufacturing process of bearing substrate layer, that is:
A kind of bearing substrate layer, is formed by following main technique manufacture:
1), by the weight percent proportioning of each element in described tin nickeline Cuprum alloy, adopt water fog method to produce tin nickeline copper alloy powder;
2) above-mentioned alloyed powder is layered on low carbon steel bottom equably;
3) through first burning, breaking down, resintering, be rolled into described copper alloy layer again.
Silver is independently to occur mutually in Cuprum alloy, and energy refinement copper crystal grain, carries heavy alloyed wear resistance and fatigue strength; If do not add silver, will there are a large amount of holes in material surface, if it is too high to add silver element content, corresponding cost again can be too high.
Tin has good corrosion resistance, dissolves in copper matrix and to its strengthening, and can crystal grain thinning, tin can also be put forward heavy alloyed wear resistance and corrosion resistance.General addition is in 12%.
Nickel is to carry heavy alloyed Young's modulus, can reinforced alloys.General addition is 1% ~ 2%, and the nickel in alloy of the present invention, for reinforced metal particle size distribution, alleviates the segregation of tin, if but nickel content is too high, will cause that the hardness of alloy significantly increases, make Alloy Anti interlock hydraulic performance decline.
The present invention has the following advantages:
Compared with prior art, existing bearing shell copper-based alloy material is generally Amounts of Lead, Tin Copper (PbSnCu) alloy, and plumbous content is up to more than 20%, to severe environmental pollution.And bearing substrate layer of the present invention is a kind of tin nickeline Cuprum alloy, the tin in tin nickeline Cuprum alloy has good decay resistance, and due to not leaded, the plain bearing bush of manufacturing with material of the present invention, has eliminated the plumbous pollution to environment, meets environmental requirement.
In a word, advantage of the present invention comprises as follows:
(1) bearing substrate layer constituent of the present invention is completely not leaded, meets environmental requirement.
(2) bearing substrate layer of the present invention adopts " Britain Gray Xi Er sapphire fatigue test board " to carry out fatigue resistance test, show that fatigue resistance of the present invention reaches 150MPa, meets internal-combustion engine requirement.
(3) by the corrosion resistance of " salt spray test chamber " test bearing substrate layer of the present invention, test result shows the good corrosion resistance of the CuPb24Sn material that the corrosion resistance of material of the present invention is more traditional.
(4) material of the present invention is indeformable under 250 DEG C of high temperature, and stability is better.
(5) materials processing of the present invention adopts powder sintered forming, and saves manufacture cost without existing equipment being carried out to large-scale transformation, is easy to promote, and can be widely used in the production of sliding bearing associated components.
Brief description of the drawings
Fig. 1 is the structural representation that dissects of bearing substrate layer of the present invention.
Embodiment
The bearing shell of sliding bearing is made up of the steel back layer setting gradually, base layer (being copper base alloy layer), nickel-barrier layer and antifriction layer, particularly for the bearing shell of high strength sliding bearing of the internal-combustion engine generally by steel back layer, copper base alloy layer (0.2 ~ 0.5mm), (10 ~ 25 μ m) form surface coating, between surface coating and copper base alloy layer, (1 ~ 2 μ m), is mainly the diffusion in order to prevent copper in copper base alloy layer to general increase one deck nickel-barrier layer.
Bearing substrate layer of the present invention is that tin nickeline Cuprum alloy on steel back layer forms by the low carbon steel layer that is arranged on bearing shell bottom, and the weight percent proportioning of tin nickeline Cuprum alloy is tin 6 ~ 10%, nickel 0.7 ~ 1.3%, and silver 0.6 ~ 2%,, surplus is copper.Tin nickeline Cuprum alloy base layer adopts powder sintered mode to process.
Embodiment 1
The weight percent proportioning of tin nickeline Cuprum alloy: tin 8%, nickel 1.3%, silver 2%,, surplus is copper.
Embodiment 2
The weight percent proportioning of tin nickeline Cuprum alloy: tin 8%, nickel 1%, silver 0.6%,, surplus is copper.
Embodiment 3
The weight percent proportioning of tin nickeline Cuprum alloy: tin 10%, nickel 0.7%, silver 2%,, surplus is copper.
Embodiment 4
The weight percent proportioning of tin nickeline Cuprum alloy: tin 6%, nickel 1.2%, silver 1%,, surplus is copper.
Embodiment 5
The weight percent proportioning of tin nickeline Cuprum alloy: tin 7.5%, nickel 0.8%, silver 1.5%,, surplus is copper.
As shown in Figure 1, bearing substrate layer is made up of copper alloy layer 2, and copper alloy layer is the sintered powder being made up of tin nickeline Cuprum alloy.Its middle low carbon steel bottom 1 is to be processed by solid slab, and low carbon steel bottom is thick, and in order to be no more than 20mm, length is no more than 2500mm, and width is no more than 1000mm.
The Performance Ratio of the present invention and comparative example is in table 1:
Table 1
In table 1, the fatigue resistance of Cu alloy material adopts " Britain Gray Xi Er sapphire fatigue test board " test, when the fatigue resistance of material reaches 150MPa, fatigue does not occur, and meets internal-combustion engine requirement.
Corrosion resistance in table 1 adopts " salt spray test chamber " test, and the corrosion resistance of Cu alloy material of the present invention is compared with the good corrosion resistance of comparative example CuPb24Sn material.
In table 1, heat-resisting quantity test is that the performance that tested material is deformed under the high temperature condition of regulation is tested, and experiment shows that material resistance to high temperature of the present invention is good.
In sum, the various performance performances of the present invention are excellent.
Claims (5)
1. a bearing substrate layer, it is characterized in that: described bearing substrate layer is copper alloy layer, the sintered powder being formed by tin nickeline Cuprum alloy, wherein silver in Cuprum alloy independently to occur mutually, for refinement copper crystal grain, reduce the hole of product surface, carry heavy alloyed wear resistance and fatigue strength; Tin is dissolved in copper matrix and to its strengthening and crystal grain thinning, puies forward heavy alloyed wear resistance and corrosion resistance; Nickel, for reinforced metal particle size distribution, alleviates the segregation of tin, and carries heavy alloyed Young's modulus, reinforced alloys,
In described tin nickeline Cuprum alloy, the weight percent proportioning of each element is:
6%≤tin % <, 10%, 0.7%≤nickel %≤1.3%, 0.6≤silver-colored % < 2%, surplus is copper.
2. bearing substrate layer according to claim 1, is characterized in that: in described tin nickeline Cuprum alloy, the weight percent proportioning of each element is tin 8%, nickel 1%, and silver 0.6%, surplus is copper.
3. bearing substrate layer according to claim 1, is characterized in that: in described tin nickeline Cuprum alloy, the weight percent proportioning of each element is tin 6%, nickel 1.2%, and silver 1%, surplus is copper.
4. bearing substrate layer according to claim 1, is characterized in that: in described tin nickeline Cuprum alloy, the weight percent proportioning of each element is tin 7.5%, nickel 0.8%, and silver 1.5%, surplus is copper.
5. produce right profit and require the method for the bearing substrate layer described in 1～4 arbitrary claim, comprise the following steps:
1), by the weight percent proportioning of each element in described tin nickeline Cuprum alloy, adopt water fog method to produce tin nickeline copper alloy powder;
2) above-mentioned alloyed powder is layered on low carbon steel bottom equably;
3) through first burning, breaking down, resintering, be rolled into described copper alloy layer again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110420000.3A CN102537067B (en) | 2011-12-15 | 2011-12-15 | Bearing substrate layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110420000.3A CN102537067B (en) | 2011-12-15 | 2011-12-15 | Bearing substrate layer |
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| Publication Number | Publication Date |
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| CN102537067A CN102537067A (en) | 2012-07-04 |
| CN102537067B true CN102537067B (en) | 2014-07-23 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013201720B4 (en) * | 2013-02-01 | 2019-05-09 | Ks Gleitlager Gmbh | Metallic sliding bearing composite material with a metallic support layer |
| CN107130136A (en) * | 2016-02-29 | 2017-09-05 | 金华市程凯合金材料有限公司 | A kind of water atomization manufacture method of copper alloy powder |
| CN107130135A (en) * | 2016-02-29 | 2017-09-05 | 金华市程凯合金材料有限公司 | A kind of water atomization manufacture method of the super performance copper alloy powder of argentiferous |
| CN106048293A (en) * | 2016-07-21 | 2016-10-26 | 安徽旭晶粉体新材料科技有限公司 | Spray method for preparing oxidation-resisting silver-containing copper alloy powder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1846076A (en) * | 2003-08-12 | 2006-10-11 | 联合莫古尔威斯巴登两合公司 | Layered composite material for plain bearings, production and use thereof |
| CN1846077A (en) * | 2003-08-12 | 2006-10-11 | 联合莫古尔威斯巴登两合公司 | Laminated composite material, production and use thereof |
| CN201297342Y (en) * | 2006-12-19 | 2009-08-26 | 马勒国际公司 | Sliding bearing |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4454812B2 (en) * | 2000-08-23 | 2010-04-21 | 大豊工業株式会社 | Copper-based slide bearing material and internal combustion engine slide bearing |
| JP2008144253A (en) * | 2006-12-13 | 2008-06-26 | Daido Metal Co Ltd | Copper-based slide material and its manufacturing method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1846076A (en) * | 2003-08-12 | 2006-10-11 | 联合莫古尔威斯巴登两合公司 | Layered composite material for plain bearings, production and use thereof |
| CN1846077A (en) * | 2003-08-12 | 2006-10-11 | 联合莫古尔威斯巴登两合公司 | Laminated composite material, production and use thereof |
| CN201297342Y (en) * | 2006-12-19 | 2009-08-26 | 马勒国际公司 | Sliding bearing |
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| CN102537067A (en) | 2012-07-04 |
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Address after: North Industrial Park of Huangshi city in 435200 Hubei County of Yangxin Province Applicant after: HUBEI ANDA AUTO PARTS CO.,LTD. Address before: North Industrial Park of Huangshi city in 435200 Hubei County of Yangxin Province Applicant before: Hubei Anda Automobile Auto Spare Parts Co., Ltd. |
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Effective date of registration: 20160302 Address after: 435200 Chengbei Industrial Zone, Xingguo Town, Yangxin County, Huangshi, Hubei Patentee after: Hubei Hongxin Compound Materials Co., Ltd. Address before: North Industrial Park of Huangshi city in 435200 Hubei County of Yangxin Province Patentee before: HUBEI ANDA AUTO PARTS CO.,LTD. |
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