Bearing bush with vacuum sputtering film and production method thereof

A bearing bush and vacuum technology, which is applied to bearing bushes with a vacuum sputtering coating and its production field, can solve the problems of environmental and personnel hazards, and achieve the effects of high fatigue resistance, excellent wear resistance and good environmental performance.

Active Publication Date: 2010-12-22
GUANGZHOU ANDA AUTOMOBILE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, in the process of production, because electroplating itself is very harmful to the environment and personnel, this is also one of its major shortcomings

Method used

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  • Bearing bush with vacuum sputtering film and production method thereof
  • Bearing bush with vacuum sputtering film and production method thereof
  • Bearing bush with vacuum sputtering film and production method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The ratio of each element of the copper-tin alloy is: tin 5%, and the rest is copper.

Embodiment 2

[0033] The ratio of each element of the copper-tin alloy is: 6% tin, and the rest is copper.

Embodiment 3

[0035] The ratio of each element of the copper-tin alloy is: tin 7%, and the rest is copper.

[0036] A method for manufacturing the above-mentioned bearing bush with a vacuum sputtering coating, comprising the following steps:

[0037] 1) Install the bearing base into the sputtering equipment, and evacuate the inside of the sputtering equipment to the set value;

[0038] 2) Under the vacuum conditions set above, use ion power to clean the surface of the bearing bush;

[0039] 3) Establish a horizontal orthogonal electromagnetic field between the bearing base and the target, in which the electric field is provided by a DC bias power supply, the DC bias power supply is continuously adjustable from 50V-900V, and the pulse frequency is continuously adjustable from 10%-85% Adjustable, the magnetic field is provided by a magnetic control power supply, the magnetic control power supply is a DC magnetic control power supply and its value is continuously adjustable from 100V-900V;

...

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PUM

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Abstract

The invention discloses a bearing bush with a vacuum sputtering film and a production method thereof. The bearing bush with the vacuum sputtering film comprises a steel backing layer, a substrate layer, a nickel grid layer and an antifriction layer which are successively arranged. The bearing bush with a vacuum sputtering film is characterized in that the antifriction layer is composed of Cu-Sn alloy; the Cu-Sn alloy has the component proportion in percentage by weight: 5-7% of Sn and the balance of Cu. The method for producing the bearing bush with the vacuum sputtering film is as follows: bearing bush inner circle adopts vacuum sputtering to deposit one layer of lead-free material Cu-Sn alloy antifriction layer. The alloy film bearing bush of the invention has the advantages of good consistency, high fatigue resistance, favorable abrasive resistance and environment protection.

Description

technical field [0001] The invention relates to the technical field of sliding bearings of internal combustion engines, in particular to a bearing bush with a vacuum sputtering coating and a production method thereof. Background technique [0002] The bearing bush is a component used to protect the shaft. Sliding bearings for internal combustion engines mainly include bearing bushes, bushings, flanged bushes and thrust plates. The main functions of the sliding bearing are: 1. Support the shaft and the parts on the shaft to maintain the rotation accuracy of the shaft; 2. Reduce the friction and wear between the shaft and the support. For high-speed, heavy-duty, high-precision, and structurally divided occasions, sliding bearings are required, such as steam turbines, centrifugal compressors, internal combustion engines, and large motors. The part that supports the journal in the bearing is the bearing bush, so the bearing bush is an important part in the sliding bearing. ...

Claims

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Application Information

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IPC IPC(8): F16C33/12C23C14/35C23C14/16
Inventor 刘会学
Owner GUANGZHOU ANDA AUTOMOBILE PARTS
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