Bearing surface anticorrosion treatment process

A treatment process and bearing surface technology, which is applied in the field of bearing surface anti-corrosion treatment process, can solve the problems of complex process and poor anti-corrosion performance

Inactive Publication Date: 2006-04-26
LUOYANG BEARING GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, in order to prevent corrosion, bearings often used processes such as phosphating, electroplating, flanges, and painting. The processes were complicated and the corrosion resistance was poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: the process steps of the present invention carrying out anti-corrosion treatment to the bearing surface are:

[0026] (1) Use solvent oil to clean the bearing matrix, and conduct a sticky test with a napkin.

[0027] (2) Sand blasting treatment on the surface of the substrate: After the bearing substrate is cleaned, use an air compressor to continuously spray appropriate abrasives onto the surface of the workpiece to fully remove rust, clean and roughen, until it presents the appearance of the natural color of the metal and a uniform outline topography, to achieve complete cleanliness and roughness. The abrasive used for sandblasting is chilled low-phosphorus cast iron sand with a particle size of 0.5mm, and the compressed air pressure is 0.65MPa. The non-corrosion surface is protected by baffles.

[0028] (3) Thermal spraying construction of the metal layer on the surface of the substrate: the spraying equipment adopts a high-speed oxygen-gas spray gun ...

Embodiment 2

[0031] Embodiment 2: the process steps of the present invention carrying out anti-corrosion treatment to the bearing surface are:

[0032] (1) Use solvent oil to clean the bearing matrix, and conduct a sticky test with a napkin.

[0033] (2) Sand blasting treatment on the surface of the substrate: use an air compressor to continuously spray appropriate abrasives onto the surface of the workpiece to fully remove rust, clean and roughen, until it presents the appearance of the metal's natural color and uniform contour shape to achieve complete cleaning and rough. The abrasive used for sandblasting is chilled low-phosphorus cast iron sand with a particle size of 1.0mm. Compressed air pressure: 0.7MPa. The non-corrosion surface is protected by baffles.

[0034] (3) Thermal spraying construction of the metal layer on the surface of the substrate: high-speed flame spraying with a high-speed oxygen-gas spray gun. The pure zinc wire of φ3.0mm is used, and its quality meets the req...

Embodiment 3

[0037] Embodiment 3: the process steps of the present invention carrying out anti-corrosion treatment to the bearing surface are:

[0038] (1) Use solvent oil to clean the bearing matrix, and conduct a sticky test with a napkin.

[0039] (2) Sand blasting treatment on the surface of the substrate: use an air compressor to continuously spray appropriate abrasives onto the surface of the workpiece to fully remove rust, clean and roughen, until it presents the appearance of the metal's natural color and uniform contour shape to achieve complete cleaning and rough. The abrasive used for sandblasting is corundum sand with a particle size of 1.0mm. Compressed air pressure: 0.7MPa. The non-corrosion surface is protected by baffles.

[0040] (3) Thermal spraying construction of the metal layer on the surface of the substrate: spraying with a wire arc spray gun, the wire diameter is φ2.0mm zinc-aluminum alloy (85% Zn-15% Al), working voltage: 22-44V, compressed air The pressure is ...

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Abstract

The present invention is technological process for anticorrosive treatment of non-working surface in bearing through hot spraying metal and coating paint. The technological process includes the following steps: cleaning bearing surface, sand blasting, spraying metal layer with high speed oxygen-fuel gas gun or electric arc gun, eliminating surface attached particles with grinding wheel or abrasive cloth and blowing with compressed air to clean, and final closing the sprayed layer with organic paint. The present invention is used for treating bearing working in exposed circumstance to raise the service life greatly.

Description

Technical field [0001] The invention belongs to the application of surface treatment technology in bearing anti-corrosion, and mainly relates to a bearing surface anti-corrosion treatment process method. Background technique [0002] With the development of modern science and technology, the performance and requirements for materials, equipment and mechanical parts are getting higher and higher. The working environment of bearings is becoming more and more diversified, and more and more bearings with special requirements are born. Many industries require bearings to work in exposed environments, such as wind turbines, port machinery, oil drilling rigs, radar and other special bearings. Therefore, the bearings are required to have various functions such as corrosion resistance, high temperature resistance, and oxidation resistance, so as to prolong the service life of the bearings. In the past, in order to prevent corrosion, phosphating, electroplating, flange, painting and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F15/00
Inventor 王景夏王卫东王黎峰张保晨周凯邹燕珍马新志谢兴会
Owner LUOYANG BEARING GROUP
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