CN101580905A - Sliding bearing alloy and preparation method thereof - Google Patents
Sliding bearing alloy and preparation method thereof Download PDFInfo
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- CN101580905A CN101580905A CNA2008100374729A CN200810037472A CN101580905A CN 101580905 A CN101580905 A CN 101580905A CN A2008100374729 A CNA2008100374729 A CN A2008100374729A CN 200810037472 A CN200810037472 A CN 200810037472A CN 101580905 A CN101580905 A CN 101580905A
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- tin
- antifriction metal
- nickel
- alloy
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Abstract
The invention relates to a sliding bearing alloy which consists of the following components according to the weight percent: 7.5-12.0 of stibium, 3.0-6.0 of copper, 0.2-0.8 of nickel, 0.2-0.5 of zinc, 0.2-0.6 of arsenic and the balance of tin. The invention also provides a preparation method of the sliding bearing alloy. The sliding bearing alloy has higher compression strength and abrasion resistance, improves the fluidity of the alloy, reduces the dispersed shrinkage, lowers the gas content in molten alloy and reduces the porosity defects in a cast product so as to lead the bearing alloy to have little fluidity and longer service life and decrease the maintenance and replacement time of the bearing.
Description
Technical field:
The present invention relates to field of metallurgy, relate in particular to alloy, particularly a kind of antifriction metal and preparation method thereof.
Background technology:
Tinhase bearing metals widespread use in the high-speed bearing of automobile, tractor, steam turbine, tin-based alloy of the prior art has good performances such as higher antifriction performance, good imbedibility and friction conformability, but its intensity, hardness, wear-resistant ability and fatigue resistance are all lower, the work-ing life of having reduced bearing metal.Tinhase bearing metals of the prior art has reduced the flowability of alloy owing to the gas content height simultaneously, has increased the trimming of bearing and has changed number of times.
Summary of the invention:
The object of the present invention is to provide a kind of antifriction metal, described this antifriction metal will solve tin-based alloy intensity in the prior art, hardness, wear-resistant ability, fatigue resistance and mobile low technical problem.
This antifriction metal of the present invention is made up of antimony, copper, nickel, zinc, arsenic and tin, the weight percent of described antimony in antifriction metal is 7.5%～12.0%, the weight percent of described copper in antifriction metal is 3.0%～6.0%, the weight percent of described nickel in antifriction metal is 0.2%～0.8%, the weight percent of described zinc in antifriction metal is 0.2%～0.5%, the weight percent of described arsenic in antifriction metal is 0.2～0.6%, and surplus is described tin.
The present invention also provides the method for preparing above-mentioned antifriction metal, the step that comprises a preparation tin nickel mother alloy in the described method, in the step of described preparation tin nickel mother alloy, the step that comprises a preparation tin nickel mother alloy in the described method, in the step of described preparation tin nickel mother alloy, the tin of 20%～35% weight in the gross weight of tin is put into one first crucible and is warming up to 480 ℃～520 ℃, then whole nickel is joined in first crucible, continue to be warming up to 760 ℃～820 ℃, high-melting-point nickel and tin are dissolved each other, after treating all fusings, ingot casting is standby, also comprise an interfused step in the described method, in described interfused step, one second crucible is preheated to 180～220 ℃, the tin of 45～55% weight in the gross weight of adding tin, whole copper and whole antimony, consolute, heat up, after raw material in second crucible all melts, under 520 ℃～560 ℃ temperature, add whole zinc and arsenic, after treating that zinc and arsenic all melt, add tin nickel mother alloy and remaining tin again, after alloy all melts, left standstill after stirring 15 minutes～30 minutes, final pouring temperature is 420 ℃～460 ℃, obtains described antifriction metal.
The present invention and prior art contrast, and its effect is actively with tangible.Owing in alloy of the present invention, increased nickel element and arsenic element, make antifriction metal of the present invention have high compression strength, wear-resistant ability also is improved significantly, improved the flowability of alloy, reduce dispersed shrinkage, reduced gas content in the alloy liquid, reduced gas hole defect in the foundry goods, make bearing metal have minimum mobile and long work-ing life, reduced the trimming of bearing and changed number of times.
Embodiment:
A kind of antifriction metal of the present invention, form by antimony, copper, nickel, zinc, arsenic and tin, the weight percent of described antimony in antifriction metal is 7.5%～12.0%, the weight percent of described copper in antifriction metal is 3.0%～6.0%, the weight percent of described nickel in antifriction metal is 0.2%～0.8%, the weight percent of described zinc in antifriction metal is 0.2%～0.5%, the weight percent of described arsenic in antifriction metal is 0.2～0.6%, and surplus is described tin.
The present invention also provides a kind of preparation method of antifriction metal, the step that comprises a preparation tin nickel mother alloy in the described method, in the step of described preparation tin nickel mother alloy, the step that comprises a preparation tin nickel mother alloy in the described method, in the step of described preparation tin nickel mother alloy, the tin of 20%～35% weight in the gross weight of tin is put into one first crucible and is warming up to 480 ℃～520 ℃, then whole nickel is joined in first crucible, continue to be warming up to 760 ℃～820 ℃, high-melting-point nickel and tin are dissolved each other, after treating all fusings, ingot casting is standby, also comprise an interfused step in the described method, in described interfused step, one second crucible is preheated to 180～220 ℃, the tin of 45～55% weight in the gross weight of adding tin, whole copper and whole antimony, consolute, heat up, after raw material in second crucible all melts, under 520 ℃～560 ℃ temperature, add whole zinc and arsenic, after treating that zinc and arsenic all melt, add tin nickel mother alloy and remaining tin again, after alloy all melts, left standstill after stirring 15 minutes～30 minutes, final pouring temperature is 420 ℃～460 ℃, obtains described antifriction metal.
Claims (2)
1. antifriction metal, it is characterized in that: described antifriction metal is by antimony, copper, nickel, zinc, arsenic and tin are formed, the weight percent of described antimony in antifriction metal is 7.5%～12.0%, the weight percent of described copper in antifriction metal is 3.0%～6.0%, the weight percent of described nickel in antifriction metal is 0.2%～0.8%, the weight percent of described zinc in antifriction metal is 0.2%～0.5%, the weight percent of described arsenic in antifriction metal is 0.2～0.6%, and surplus is described tin.
2. method for preparing antifriction metal as claimed in claim 1, it is characterized in that: the step that comprises a preparation tin nickel mother alloy in the described method, in the step of described preparation tin nickel mother alloy, the tin of 20%～35% weight in the gross weight of tin is put into one first crucible and is warming up to 480 ℃～520 ℃, then whole nickel is joined in first crucible, continue to be warming up to 760 ℃～820 ℃, high-melting-point nickel and tin are dissolved each other, after treating all fusings, ingot casting is standby, also comprise an interfused step in the described method, in described interfused step, one second crucible is preheated to 180～220 ℃, the tin of 45～55% weight in the gross weight of adding tin, whole copper and whole antimony, consolute, heat up, after raw material in second crucible all melts, under 520 ℃～560 ℃ temperature, add whole zinc and arsenic, after treating that zinc and arsenic all melt, add tin nickel mother alloy and remaining tin again, after alloy all melts, left standstill after stirring 15 minutes～30 minutes, final pouring temperature is 420 ℃～460 ℃, obtains described antifriction metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100374729A CN101580905A (en) | 2008-05-15 | 2008-05-15 | Sliding bearing alloy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100374729A CN101580905A (en) | 2008-05-15 | 2008-05-15 | Sliding bearing alloy and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101580905A true CN101580905A (en) | 2009-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100374729A Pending CN101580905A (en) | 2008-05-15 | 2008-05-15 | Sliding bearing alloy and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN101580905A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105385892A (en) * | 2015-11-30 | 2016-03-09 | 云南锡业锡材有限公司 | Babbitt metal wire and preparation method thereof |
| CN109055812A (en) * | 2018-09-07 | 2018-12-21 | 浙江申发轴瓦股份有限公司 | A kind of Babbitt alloy material |
-
2008
- 2008-05-15 CN CNA2008100374729A patent/CN101580905A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105385892A (en) * | 2015-11-30 | 2016-03-09 | 云南锡业锡材有限公司 | Babbitt metal wire and preparation method thereof |
| CN109055812A (en) * | 2018-09-07 | 2018-12-21 | 浙江申发轴瓦股份有限公司 | A kind of Babbitt alloy material |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20091118 |