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A kind of preparation method of copper coating of steel-backed copper-based bearing bush

A technology of copper coating and bearing bush, which is applied in the field of bearing bush processing, can solve the problems of lower bearing bush performance, composition segregation, porous alloy layer, slag inclusion, etc., and achieve the effect of not easy to wear, good self-lubricating performance and long service life

Active Publication Date: 2020-02-21
ARMOR ACADEMY OF CHINESE PEOPLES LIBERATION ARMY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The alloy layer obtained by this method has many pores and slag inclusions, and segregation of components will occur, which will reduce the performance of the bearing bush.

Method used

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  • A kind of preparation method of copper coating of steel-backed copper-based bearing bush
  • A kind of preparation method of copper coating of steel-backed copper-based bearing bush

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] The implementation of the present invention will be described in detail below in conjunction with specific embodiments.

[0024] Such as figure 1 As shown, in the embodiment of the present invention, a steel-backed copper-based bearing pad is provided, which includes a steel bearing pad substrate 1 and a copper alloy layer 2 disposed on the inner layer of the steel bearing pad substrate. The copper alloy layer 2 is prepared by spraying gas-atomized high-aluminum bronze powder on the surface of the steel bearing bush substrate by a low-temperature supersonic spraying method. The porosity of...

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Abstract

The invention provides a preparation method of a steel-backed copper-based bearing bush copper coating. The preparation method comprises pretreatment: removing oil and rust on the surface of a steel bearing bush base, carrying out sandblasting roughening pretreatment and cleaning the surface of the base through a cleaning agent, preheating: preheating the steel bearing bush base and keeping the temperature in the steel bearing bush base in a range of 100-150 DEG C, and spray coating: spray-coating the steel bearing bush base with high-aluminum bronze powder through a spray gun moving along a longitudinal direction. The bearing bush obtained by the preparation method retains the strength and rigidity of the bearing bush and a high oil storage rate belonging to the material having high porosity.

Description

technical field [0001] The invention belongs to the technical field of bearing bush processing, and in particular relates to a method for preparing a steel-backed copper-based bearing bush copper coating. Background technique [0002] Bearing pad is a kind of widely used mechanical parts. When working, a thin oil film is required between the bearing pad and the rotating shaft to lubricate. If the lubrication is poor, there will be direct friction between the bearing bush and the shaft, and the friction will generate high temperature and burn it out. The sliding surface of the bearing pad is mostly made of materials with a small friction coefficient, sufficient fatigue strength, good running-in and good corrosion resistance. In modern times, copper-based alloy bearing pads are mostly used, and copper-based alloys have higher thermal conductivity than steel. The heat caused by sliding friction can be quickly dissipated. [0003] The traditional method is to make the alloy ad...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C4/08C23C4/129
CPCC23C4/08C23C4/129
Inventor 王晓明朱胜周超极韩国峰赵阳任智强李华莹杨磊
Owner ARMOR ACADEMY OF CHINESE PEOPLES LIBERATION ARMY