Application selection of dry film lubricant on carbon steel surface and antifriction mechanism
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 12 July 2022
Issue publication date: 8 August 2022
Abstract
Purpose
Carbon steel has a high application rate in modern industry, but this type of steel has the defect of high wear. This study aims to improve the surface friction and wear performance of carbon steel under such working conditions.
Design/methodology/approach
In this study, a dry film lubricant based on graphite powder was prepared by the ultrasonic dispersion method, and deposited on the surface of carbon steel specimens by the simple pressure spraying technology. At the same time, molybdenum disulfide and polytetrafluoroethylene dry film lubricants were developed by the same method, and the comparative experimental study on friction and wear was carried out in the end-face friction tester.
Findings
The results show that the deposition effect of graphite and molybdenum disulfide dry film lubricants on the surface of carbon steel is obviously better than that of polytetrafluoroethylene dry film lubricant. Compared with molybdenum disulfide and polytetrafluoroethylene dry film lubricant, graphite dry film lubricant has the best friction and wear performance on the surface of carbon steel. The working life of carbon steel specimens sprayed with graphite dry film lubricant decreases with the increase of pressure load and rotation speed. The combination of load and sliding speed will accelerate the transition of the coating to a stable direction. In addition, the micro lubricant particles formed in the wear process will form particle flow lubrication, and the appropriate addition of particle powder of the same material will also prolong the normal antifriction time of the lubricant.
Originality/value
These findings developed a dry film lubricant that can effectively improve the friction and wear properties of carbon steel surface.
Keywords
Acknowledgements
This work was supported by the National Natural Science Foundation of China (52175397 and 51605150). This work was also partly supported by the Henan Provincial Key Teacher Training Program (2019GGJS265), the Scientific and Technological Research Projects in Henan Province (212102210432), and the Key Scientific Research Projects of Henan Universities (21A110007 and 21A130001).
Citation
Fanjing, M., Pang, M. and Ma, L. (2022), "Application selection of dry film lubricant on carbon steel surface and antifriction mechanism", Industrial Lubrication and Tribology, Vol. 74 No. 7, pp. 868-875. https://doi.org/10.1108/ILT-05-2022-0154
Publisher
:Emerald Publishing Limited
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