CN1831350A - Oil-containing bearing made of pure copper cladding iron powder - Google Patents
Oil-containing bearing made of pure copper cladding iron powder Download PDFInfo
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- CN1831350A CN1831350A CN 200510020496 CN200510020496A CN1831350A CN 1831350 A CN1831350 A CN 1831350A CN 200510020496 CN200510020496 CN 200510020496 CN 200510020496 A CN200510020496 A CN 200510020496A CN 1831350 A CN1831350 A CN 1831350A
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- oil
- pure copper
- iron powder
- iron
- containing bearing
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- Powder Metallurgy (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses an iron-in-pure copper powder, oil-containing bearing, made of iron-in-pure copper powder as main material, basal body reinforcing element, wearing proof alloy, and antifriction element by heat processing and follow-up machining; and its composition: Cu 20%-60%,Sn 1%-4% and other components <3% and the rest iron. And the invention has uniform chemical components and low cost, able to reduce Cu utilization by 30%-40%, uniformly-colored, having strong copper color, good antirust property, stable mechanical-physical property, and better service effect than that of an oil-containing bearing made of pure copper powder and iron powder by mix machining.
Description
The invention belongs to bearing, especially accurate oil-impregnated bearing manufacturing technology field.
[technical background of invention]
Contain numerous perforates that is interconnected in the Structural Hardware of sintered metal bearing.Void content in the bearing is about 10-40%.This void content can be used to the fluid storage oiling agent, and fluid lubricant is to contain to be dipped in wherein in the manufacture process of bearing.In great majority are used, be to be lubricated by the oiling agent that bearing self contains.Oil-impregnated bearing has become the indispensable class fundamental parts of various industrial product development such as automobile, household electrical appliances, stereo set, office equipment, farm machinery, precision optical machinery now.Generally with the sintering body of powder metallurgic method making, the porosity increase often is accompanied by the strength of materials and descends.Therefore, when making sintered metal bearing, according to the purpose of using, should make this sintering body how take into account the porosity and the strength of materials, oil-impregnated bearing with general manufacture of materials, linear velocity is higher than 400M/MIN and produces high thermal conductance and cause brearing bore heavy wear when being applied to zero load, and service life of a machine often about 10 hours, does not reach 100 hours service life of a machine requirement.
[summary of the invention]
Above shortcoming in view of prior art the objective of the invention is to study a kind of high speed wear-resistance oil-containing bearing, makes it to overcome the above shortcoming of prior art.
Purpose of the present invention makes and realizes by following method.
Oil-containing bearing made of pure copper cladding iron powder adopts the pure copper cladding iron powder main material, and be equipped with matrix and strengthen element, abrasion resistance alloy and antifriction anti-lock element, after heat treatment continuous processing makes; The percentage composition of pure copper cladding iron powder is Cu-Zn 20-30, Sn1-2; Other composition is less than 3, balance iron.
Oil-impregnated bearing of the present invention, make oil-impregnated bearing with pure copper cladding iron powder, chemical composition is even, and cost is low, can reduce copper use amount 30-40%, surface color is even, and coppery is strong, and rust protection is good, machinery-stable physical property, the using effect of product surpass the oil-impregnated bearing with brass powder and the processing of iron powder mixed method.
[concrete implementation methods]
By the Fe-Cu binary system phase diagram as can be known, the solubility with temperature of copper in iron changes greatly, be about 3.5% during 835Y, and at room temperature the solubility of copper in iron has only 0.2% '.When the copper content that adds in iron is higher and since between the two do not dissolve the property treated mutually, make it have only the part pseudo-alloy (PseMdo-allOy) of formation.This weak interaction effect between two elements makes them easily present the particular combinations of two element intrinsic physical properties after compound, adopts the copper clad iron powder can improve the structure and the mechanical property of material, improves micro-penetration hardness greatly.Under the selflubricating condition, the obdurability height of material, the hole of rubbing surface can keep good state.
Embodiment 1:
The percentage composition of copper clad iron powder is, Cu20, and Sn1, C2, other composition are less than 3, and surplus is an iron.Through batch mixing-compacting-pre-burning-sintering-finishing-immersion oil.The covering amount of fine copper is 20-30%, and fine copper evenly fully covers ferrous powder granules.Obtain the multiple shape oil-impregnated bearing of product.Can reduce copper use amount 30%, surface color is even, and coppery is strong, and rust protection is good, and machinery-stable physical property, the using effect of product surpass the oil-impregnated bearing with brass powder and the processing of iron powder mixed method.
Embodiment 2:
The percentage composition of copper clad iron powder is, Cu50, and Sn3, C2, other composition are less than 3, and surplus is an iron.Through batch mixing-compacting-pre-burning-sintering-finishing-immersion oil.The covering amount of fine copper is 20-30%, and fine copper evenly fully covers ferrous powder granules.Obtain the multiple shape oil-impregnated bearing of product.Can reduce copper use amount 40%, surface color is even, and coppery is strong, and rust protection is good, and machinery-stable physical property, the using effect of product surpass the oil-impregnated bearing with brass powder and the processing of iron powder mixed method.
Claims (2)
1, oil-containing bearing made of pure copper cladding iron powder adopts the pure copper cladding iron powder main material, and be equipped with matrix and strengthen element, abrasion resistance alloy and antifriction anti-lock element, after heat treatment continuous processing makes; The percentage composition of product is Cu 20-60, Sn 1-4; Other composition is less than 3, balance iron.
2, the oil-containing bearing made of pure copper cladding iron powder according to claim 1 is characterized in that the covering amount of fine copper is 20-30%, and fine copper evenly fully covers ferrous powder granules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510020496 CN1831350A (en) | 2005-03-11 | 2005-03-11 | Oil-containing bearing made of pure copper cladding iron powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510020496 CN1831350A (en) | 2005-03-11 | 2005-03-11 | Oil-containing bearing made of pure copper cladding iron powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1831350A true CN1831350A (en) | 2006-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510020496 Pending CN1831350A (en) | 2005-03-11 | 2005-03-11 | Oil-containing bearing made of pure copper cladding iron powder |
Country Status (1)
| Country | Link |
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| CN (1) | CN1831350A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101534980B (en) * | 2006-11-17 | 2012-06-13 | Jx日矿日石金属株式会社 | Iron/copper composite powder for powder metallurgy and process for producing the same |
| CN103526114A (en) * | 2013-10-22 | 2014-01-22 | 东南大学 | Elementary powder sintered iron-copper-based oil-containing anti-friction material and preparation method thereof |
| CN108515178A (en) * | 2018-05-21 | 2018-09-11 | 成都威士达粉末冶金有限公司 | A kind of copper-based oil containing bearing material of iron and preparation method thereof |
-
2005
- 2005-03-11 CN CN 200510020496 patent/CN1831350A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101534980B (en) * | 2006-11-17 | 2012-06-13 | Jx日矿日石金属株式会社 | Iron/copper composite powder for powder metallurgy and process for producing the same |
| CN103526114A (en) * | 2013-10-22 | 2014-01-22 | 东南大学 | Elementary powder sintered iron-copper-based oil-containing anti-friction material and preparation method thereof |
| CN108515178A (en) * | 2018-05-21 | 2018-09-11 | 成都威士达粉末冶金有限公司 | A kind of copper-based oil containing bearing material of iron and preparation method thereof |
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