Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing corrosion-resistance surface of bearing by laser texturing

A micro-modeling and corrosion-resistant technology, applied in laser welding equipment, bearings, bearing components, etc., can solve the problems of bearing self-lubricating performance, anti-friction and wear resistance and corrosion resistance that cannot meet the needs of industrialization, so as to improve the adaptability The ability to work in harsh environments, ensure the overall mechanical strength, improve the effect of anti-friction, wear resistance and corrosion resistance

Inactive Publication Date: 2017-07-07
JIANGSU UNIV OF TECH
View PDF10 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings that the self-lubricating performance, anti-friction wear resistance and corrosion resistance of bearings in the prior art cannot meet the needs of industrialization, and to provide a method for preparing the corrosion-resistant surface of bearings by laser micro-modeling to improve bearing performance. Excellent self-lubricating performance, anti-friction and wear resistance and corrosion resistance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing corrosion-resistance surface of bearing by laser texturing
  • Method for preparing corrosion-resistance surface of bearing by laser texturing
  • Method for preparing corrosion-resistance surface of bearing by laser texturing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A method for preparing a corrosion-resistant surface of a bearing by laser micromodeling in this embodiment includes the following steps:

[0036] (1) Laser micro-modeling, using an infrared laser marking machine (DL-TG-IRF-30) to process a micro-pit structure on the outer surface of the inner ring of the rolling bearing with brass H62 as the base material, and the laser wavelength used is 1064nm , the laser output power is 20W, the laser frequency is 20kHz, the pulse width is 100ns, the diameter of the processed micro-pit is 60 μm, the depth is 20 μm, the distance between the two pits is 150 μm, and the area occupancy rate of the micro-pit is 20%;

[0037] (2) After-treatment of the bearing surface, the bearing samples after laser processing were polished with 3000# and 7000# sandpaper to remove surface burrs, and ultrasonically cleaned to obtain clean samples;

[0038] (3) Surface modification, immerse the bearing sample in a stearic acid ethanol solution with a mass pe...

Embodiment 2

[0043] A method for preparing a corrosion-resistant surface of a bearing by laser micromodeling in this embodiment includes the following steps:

[0044] (1) Laser micro-modeling, using an infrared laser marking machine (DL-TG-IRF-30) to process a micro-groove structure on the working surface of the thrust bearing seat ring with 304 stainless steel as the base material, the laser wavelength used is 1064nm, The laser output power is 20W, the laser frequency is 20kHz, and the pulse width is 100ns. The width of the processed micro-groove is 80μm, the depth is 20μm, and the distance between the two grooves is 300μm.

[0045] (2) After-treatment of the bearing surface, the bearing samples after laser processing were polished with 3000# and 7000# sandpaper to remove surface burrs, and ultrasonically cleaned to obtain clean samples;

[0046] (3) Surface modification, immerse the bearing sample in a stearic acid ethanol solution with a mass percentage of 3% for 10 hours, then take it ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Wavelengthaaaaaaaaaa
Diameteraaaaaaaaaa
Depthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing a corrosion-resistance surface of a bearing by laser texturing. Firstly, a laser marking machine is adopted to machine micropit or microgroove structures on relative motion surfaces of a rolling bearing or a slide bearing, and the area occupancy of the micropit or microgroove structures is 10-30%; then, the machined surface of the bearing is polished to remove surface burrs; and finally, the surface of the bearing is immersed in a stearic acid ethanol solution to form a monomolecular absorption layer on the whole surface to reduce the surface energy. Through the laser texturing technology, on the one hand, air can be trapped in microholes, so that corrosion ions of the bearing have difficulty in making contact with the surface of a substrate in sea and other strong corrosion working environments, and the corrosion rate of the bearing is reduced; and on the other hand, after the surface of the bearing is microporous, a certain quantity of lubricating grease can be stored in the microholes beforehand, so that the bearing realizes self-lubrication during working, the antifriction wear resistance and the corrosion resistance of the bearing are improved, and the capability of the bearing adapting to bad working environments is greatly improved.

Description

technical field [0001] The invention relates to a bearing surface corrosion-resistant technology, in particular to a treatment technology for preparing a bearing corrosion-resistant surface by laser micro-modeling. Background technique [0002] As an important part of contemporary mechanical equipment, bearings are widely used in aerospace, construction machinery, automobiles, marine equipment, wind power and other fields. With the development of industry, the requirements for the performance of bearings are becoming more and more stringent. For example, in strong corrosive working environments such as oceans, bearings are required to maintain stable performance and have strong corrosion resistance. As we all know, the marine environment is a complex corrosive environment. In this environment, seawater is a strong corrosive medium, and marine microorganisms and attached organisms are easy to corrode metal components. Therefore, it is particularly important to research and d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B23K26/352F16C33/10F16C33/12F16C33/64F16C33/66
CPCB23K26/352F16C33/103F16C33/12F16C33/64F16C33/664F16C2300/42
Inventor 叶霞黄超姚爱斐杨晓红范振敏刘群超
Owner JIANGSU UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com