CN100482825C - Aluminium alloy for sliding bearing - Google Patents
Aluminium alloy for sliding bearing Download PDFInfo
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- CN100482825C CN100482825C CNB2006100516735A CN200610051673A CN100482825C CN 100482825 C CN100482825 C CN 100482825C CN B2006100516735 A CNB2006100516735 A CN B2006100516735A CN 200610051673 A CN200610051673 A CN 200610051673A CN 100482825 C CN100482825 C CN 100482825C
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Abstract
The present invention relates to one kind of aluminum alloy for sliding bearing, and belongs to the field of material science. The chemical composition of the aluminum alloy includes Sn 5.0-8.0 wt%, Cu 1.5-2.5 wt%, Ni 0.6-1.9 wt%, S 0.2-0.8 wt%, Fe 0.3-0.7 wt%, Mn 0.05-0.1 wt%, Mg 0.4-0.9 wt%, Ti 0.1-0.5 wt% and Zn 0.4-0.7 wt%. The aluminum alloy has properly regulated components and added Mn and Zn components, and possesses good physical performance and high lipophilicity.
Description
Technical field
The present invention relates to a kind of alloy, particularly a kind of aluminium alloy for sliding bearing belongs to material science.
Background technology
The working conditions of the sliding surface bearing of all kinds of oil engines, compressor, mechanical drive is comparatively complicated, axle pressure and the frictional force that produced when radially rotating are bigger in work, not only hardness, tensile strength, elongation and the yield strength to bearing materials has higher requirement, and the fatigue resistance and the good conformability of alloy also had certain requirement.The hardness of the aluminium alloy of current application and wear resisting property can meet the demands substantially but not say that from more requirements at the higher level of industry its period of a permutation is too short, improve long having any problem of life-span.(patent No. is: CN98110581.5), it discloses a kind of casting wear-resistant zinc-aluminium alloy to the Chinese patent of a kind of wear-resisting zinc-aluminium alloy and for example by name and melting technology thereof.This material is base with zinc, aluminium, copper are main alloy element, carry out multicomponent microalloy processing and grain refining, go bad and handle by adding antimony, magnesium, titanium, boron, lanthanum element, and employing melt thermal treatment melting technology, the desirable bearing alloy structure of hard point has obtained to distribute on the tiny soft matrix of crystal grain, improve the mechanical property of alloy, improved its friction and wear characteristic and casting quality.The plasticity of this material, toughness and wear resisting property are good, and casting dimension is stablized, and lower cost for material is an excellent material of making sliding friction parts such as bearing shell, axle sleeve, worm gear.But apparatus and process complexity.
Summary of the invention
The invention solves existing in prior technology the problems referred to above, a kind of have better physicals and the high aluminium alloy of lipophilicity are provided.
Above-mentioned technical purpose of the present invention solves by the following technical programs:
A kind of aluminium alloy for sliding bearing is characterized in that its chemical ingredients consists of (weight percent):
Sn：5.0-8.0 Cu：1.5-2.5 Ni：0.6-1.9
Si：0.2-0.8 Fe：0.3-0.7 Mn：0.05-0.1
Mg：0.4-0.9 Ti：0.1-0.5 Zn：0.4-0.7
Surplus is an aluminium.The international standard of aluminium alloy for sliding bearing is Sn:5.5-7.0 Cu:0.7-1.3Ni:0.7-1.3 Si:0.7 Fe:0.1 Mn:0.2, Ti0.2, there are not effective elements such as Mg, Zn, the present invention has creatively added Mg, Zn element, change other components contents simultaneously, reached purpose of the present invention.Wherein magnesium dissolves in and forms the solid solution attitude in the aluminum substrate, also can and precipitate with other metals formation intermetallicss, improved the fatigue resistance of alloy, zinc dissolves in fatigue resistance and the seizure resistance that improves alloy in the aluminum substrate, has improved the lipophilicity to lubricating oil simultaneously.Certain composition of the present invention does not comprise some unavoidable impurities.
The preferred chemical ingredients of aluminium alloy for sliding bearing of the present invention consists of (weight percent):
Sn：6.0-8.0 Cu：1.5-2.3 Ni：0.6-1.5
Si：0.2-0.5 Fe：0.4-0.7 Mn：0.05-0.1
Mg：0.6-0.9 Ti：0.1-0.2 Zn：0.4-0.7
Surplus is an aluminium.
The optimum chemical composition of inventing described aluminium alloy for sliding bearing consists of (weight percent):
Sn：7.4 Cu：1.8 Ni：1.2
Si：0.3 Fe：0.4 Mn：0.06
Mg：0.7 Ti：0.12 Zn：0.56
Surplus is an aluminium.
The composition of the alloy material of material of the present invention and international standard compares:
| Composition | AL | Si | Fe | Cu | Mn | Mg | Zn | Ti | Sn | Ni |
| Alloy of the present invention | Surplus | 0.2- 0.5 | 0.3-0 .7 | 1.5-2. 3 | 0.05- 0.1 | 0.6-0. 9 | 0.4-0 .7 | 0.1- 0.2 | 5.0-8.0 | 0.4 -0. 9 |
| The alloy of ISO 6279ALSn6CuNi international standard | Surplus | 0.7 | 0.7 | 0.7-1. 3 | 0.1 | --- | --- | 0.2 | 5.5-7.0 | 0.7 -1. 3 |
The comparison of the Main physical performance of the aluminium alloy (behind the gravity casting) of gained aluminium alloy of the present invention (behind the gravity casting) and international standard:
| Kind | Brinell hardness HB10/100/10 | Tensile strength N/mm 2 | Elongation % | Yield strength N/mm 2 |
| Aluminium alloy of the present invention | Greater than 55 | Greater than 120 | Greater than 5 | Greater than 61 |
| The aluminium alloy of ISO 6279ALSn6CuNi international standard | Greater than 35 | Greater than 110 | Greater than 10 | Greater than 45 |
Therefore, aluminium alloy of the present invention is used for having better hardness, better tensile strength on the sliding surface bearing, the aluminium alloy that lower elongation and lipophilicity are high.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in further detail.
The chemical ingredients of the embodiment of the invention is formed
| Composition | AL | Si | Fe | Cu | Mn | Mg | Zn | Ti | Sn | Ni |
| Embodiment 1 | Surplus | 0.2 | 0.3 | 1.5 | 0.05 | 0.4 | 0.4 | 0.1 | 5.00 | 0.6 |
| Embodiment 2 | Surplus | 0.8 | 0.7 | 2.5 | 0.1 | 0.9 | 0.7 | 0.5 | 8.0 | 1.9 |
| Embodiment 3 | Surplus | 0.5 | 0.5 | 2.1 | 0.08 | 0.6 | 0.6 | 0.4 | 6.4 | 1.0 |
| Embodiment 4 | Surplus | 0.2 | 0.3 | 1.5 | 0.05 | 0.6 | 0.4 | 0.1 | 6.0 | 0.6 |
| Embodiment 5 | Surplus | 0.5 | 0.7 | 2.3 | 0.1 | 0.9 | 0.7 | 0.2 | 8.0 | 1.5 |
| Embodiment 6 | Surplus | 0.3 | 0.4 | 1.8 | 0.06 | 0.7 | 0.56 | 0.12 | 7.4 | 1.2 |
Embodiment 1: as above show, adopt general smelting equipment, the various composition meltings of table embodiment 1 described weight percent form aluminium alloy on adding in commercial-purity aluminium, the alloy cast molding of gained can be obtained the blank of sliding surface bearing, and the test result of the embodiment of the invention 1 random sampling shows: tensile strength mean value is 130N/mm
2, elongation mean value is 10%, Brinell hardness mean value is 50HB.
Embodiment 2: as above show, adopt general smelting equipment, the various composition meltings of table embodiment 2 described weight percents form aluminium alloy on adding in commercial-purity aluminium, the alloy cast molding of gained can be obtained the sliding surface bearing blank, and the test result of the embodiment of the invention 2 random sampling shows: tensile strength mean value is 131N/mm
2, elongation mean value is 9.8%, Brinell hardness mean value is 49HB.
Embodiment 3: as above show, adopt general smelting equipment, the various composition meltings of table embodiment 3 described weight percents form aluminium alloy on adding in commercial-purity aluminium, the alloy cast molding of gained can have been obtained sliding surface bearing, and the test result of the embodiment of the invention 3 random sampling shows: tensile strength mean value is 133N/mm
2, elongation mean value is 11%, Brinell hardness mean value is 51HB.
Embodiment 4: as above show, adopt general smelting equipment, the various composition meltings of table embodiment 4 described weight percents form aluminium alloy on adding in commercial-purity aluminium, the alloy cast molding of gained can be obtained the sliding surface bearing blank, and the test result of the embodiment of the invention 4 random sampling shows: tensile strength mean value is 134N/mm
2, elongation mean value is 9%, Brinell hardness mean value is 52HB.
Embodiment 5: as above show, adopt general smelting equipment, the various composition meltings of table embodiment 5 described weight percents form aluminium alloy on adding in commercial-purity aluminium, the alloy cast molding of gained can have been obtained sliding surface bearing, and the test result of the embodiment of the invention 5 random sampling shows: tensile strength mean value is 130N/mm
2, elongation mean value is 10%, Brinell hardness mean value is 50HB.
Embodiment 6: as above show, adopt general smelting equipment, the various composition meltings of table embodiment 6 described weight percents form aluminium alloy on adding in commercial-purity aluminium, the alloy cast molding of gained can be obtained the sliding surface bearing blank, and the test result of the embodiment of the invention 6 random sampling shows: tensile strength mean value is 137N/mm
2, elongation mean value is 6%, yield strength 61N/mm
2Brinell hardness mean value is 55HB.
Because this alloy is to add an amount of magnesium and zinc on the basis of the proportioning of adjusting the aluminium alloy component, not only improved the physical and mechanical property of aluminium alloy, keep advantages of higher tensile strength and hardness simultaneously, and better lipophilicity arranged, make the aluminium alloy of gained of the present invention have antifatigue with fork-like farm tool used in ancient China manufacturing sliding surface bearing. good frictional compatibility, good solidity to corrosion is at the high temperature high bearing capacity.Alloy of the present invention is applicable to permanent mold casting rotary casting and low-pressure casting.
Claims (3)
1, a kind of aluminium alloy for sliding bearing is characterized in that its chemical ingredients consists of (weight percent):
Sn：5.0-8.0 Cu：1.5-2.5 Ni：0.6-1.9
Si：0.2-0.8 Fe：0.3-0.7 Mn：0.05-0.1
Mg：0.4-0.9 Ti：0.1-0.5 Zn：0.4-0.7
Surplus is an aluminium.
2, aluminium alloy for sliding bearing according to claim 1 is characterized in that its chemical ingredients consists of (weight percent):
Sn：6.0-8.0 Cu：1.5-2.3 Ni：0.6-1.5
Si：0.2-0.5 Fe：0.4-0.7 Mn：0.05-0.1
Mg：0.6-0.9 Ti：0.1-0.2 Zn：0.4-0.7
Surplus is an aluminium.
3, aluminium alloy for sliding bearing according to claim 1 and 2 is characterized in that its chemical ingredients consists of (weight percent):
Sn：7.4 Cu：1.8 Ni：1.2
Si：0.3 Fe：0.4 Mn：0.06
Mg：0.7 Ti：0.12 Zn：0.56
Surplus is an aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100516735A CN100482825C (en) | 2006-05-29 | 2006-05-29 | Aluminium alloy for sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100516735A CN100482825C (en) | 2006-05-29 | 2006-05-29 | Aluminium alloy for sliding bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101082094A CN101082094A (en) | 2007-12-05 |
| CN100482825C true CN100482825C (en) | 2009-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100516735A Expired - Fee Related CN100482825C (en) | 2006-05-29 | 2006-05-29 | Aluminium alloy for sliding bearing |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101301802B (en) * | 2008-06-26 | 2012-11-14 | 上海核威实业有限公司 | Davis bronze-steel composite bimetallic bearing material and manufacturing method thereof |
| CN101705396B (en) * | 2009-12-14 | 2011-06-08 | 南京信息工程大学 | Aluminum-based bearing compound material and preparation method thereof |
| CN102517479B (en) * | 2012-01-12 | 2013-09-04 | 山推工程机械股份有限公司 | Composite material for bearing bush and preparation method for composite material |
| CN102748392A (en) * | 2012-07-10 | 2012-10-24 | 河南省恒丰汽车配件制造有限公司 | Aluminum-titanium-magnesium alloy acupressure bearing bush |
| CN103774005A (en) * | 2012-10-23 | 2014-05-07 | 刘秀凤 | Preparation method for high-performance aluminum-based composite material |
| CN107725600A (en) * | 2017-10-13 | 2018-02-23 | 烟台大丰轴瓦有限责任公司 | The production technology of tin aluminium silicon bearing shell fatigue resistance in a kind of lifting |
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| CN101082094A (en) | 2007-12-05 |
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