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High-strength tin-indium alloy coating bushing

A technology of tin-indium alloy and bearing bush is applied in the field of high-strength tin-indium alloy coated bearing bush, and can solve the problems of internal combustion engine that cannot be used for strengthening, low fatigue strength of anti-friction layer, etc.

Active Publication Date: 2011-12-07
湖北安达精密工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of bearing bush can meet the basic requirements of the engine to a certain extent, but due to the low fatigue resistance of the anti-friction layer, it cannot be used for strengthened internal combustion engines, and cannot meet the needs of the development of automotive internal combustion engines.

Method used

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  • High-strength tin-indium alloy coating bushing
  • High-strength tin-indium alloy coating bushing
  • High-strength tin-indium alloy coating bushing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The ratio of each element in the tin-indium alloy is: indium 20%, the rest is tin.

Embodiment 2

[0023] The ratio of each element in the tin-indium alloy is: indium 2%, the rest is tin.

Embodiment 3

[0025] The proportion of each element in the tin-indium alloy is: indium 10%, the rest is tin.

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Abstract

The invention discloses a high-strength tin-indium alloy coating bushing which comprises a steel backing layer, a substrate layer, a nickel grid layer and an anti-friction layer which are arranged sequentially. The high-strength tin-indium alloy coating bushing is characterized in that the anti-friction layer comprises a tin-indium alloy, and the tin-indium alloy comprises the following elements in mass percent: 2-20% of indium and balance of tin. Compared with the like products in the prior art, the high-strength tin-indium alloy coating bushing of the invention has the advantages of wear resistance, corrosion resistance, high carrying capacity and environmental protection because of no existence of lead.

Description

technical field [0001] The invention relates to the sliding bearing technology of an internal combustion engine, in particular to an improvement technology for a bearing bush of a high-load bearing sliding bearing, in particular to a high-strength tin-indium alloy plated bearing bush. Background technique [0002] The bearing pad is one of the most critical parts of the engine, and the performance of the bearing pad directly affects the performance of the engine. With the development of internal combustion engines in the direction of high speed, high load capacity and environmental protection, the requirements for the performance of bearing pads are constantly increasing. It is required that the bearing pads not only have high load capacity and fatigue resistance, but also have good wear resistance and corrosion resistance. In recent years, with the development of the economy, people's demand for automobiles has been increasing, and the problem of environmental pollution ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C33/12
Inventor 刘会学
Owner 湖北安达精密工业有限公司
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