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CSME 2024/08
Volume 45 No.4
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365-374
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Effects of Nano-Diamond Additives on the Tribological Performance Improvement of Lubricating Grease for Ball Screw
Yung-Chin Chiua and Hsiao-Yeh Chua
aDepartment of Mechanical Engineering, Kun Shan University, Tainan, Taiwan 710303, ROC.
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Abstract:
This study presents groundbreaking insights into the tribological performance enhancement of lithium soap-based greases through the novel use of Ultra Dispersed nano-Diamonds (UDD). Uniquely, we explore the synergistic effects of Oleylamine (OLA) as a dispersant and different particle sizes of UDD, a methodology not extensively investigated in prior research. Our comprehensive four-ball tests reveal that a 100 ppm concentration of UDD with OLA significantly lowers the grease temperature and reduces wear scar diameters on steel balls, a finding with considerable implications for industrial lubrication applications. Notably, the addition of 0.001 ml of UDD under a test load of 2934 N extended grease life from 1450 to 2100 seconds, demonstrating a substantial improvement over traditional grease formulations. These results underscore the potential of UDD additives in revolutionizing the performance and durability of lubricating greases.
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Keywords: Tribology, Four-Ball Wear Test, Ball Screw, Grease Life Test. Nano-Diamond
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*Corresponding author; e-mail:
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©
2024
CSME , ISSN 0257-9731
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