자동차 기어오일의 혼합첨가제 첨가에 따른 트라이볼로지 특성에 관한 연구
A Study on the Tribological Characteristics of Automobile Gear Oil with Addition of Compound Additives
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In this paper, experiments have been performed for the investigation of tribological characteristics of automobile gear oil with the addition of ZDDP and DEP by using the FALEX WEAR TEST MACHINE.The results are as follows. The wear characteristics of gear oil was improved by adding compound additives. The extreme pressure of gear oil increases and then decreases with the applied load. The maximum extreme pressure of gear oil with compound additive is bigger then that of pure gear oil.The friction coefficient of pure gear oil monotonically increases with the temperature, but that of gear oil mixed with the additives decreases at the high temperature.
Abstract
In this paper, experiments have been performed for the investigation of tribological characteristics of automobile gear oil with the addition of ZDDP and DEP by using the FALEX WEAR TEST MACHINE.The results are as follows. The wear characteristics of gear oil was improved by adding compound additives. The extreme pressure of gear oil increases and then decreases with the applied load. The maximum extreme pressure of gear oil with compound additive is bigger then that of pure gear oil.The friction coefficient of pure gear oil monotonically increases with the temperature, but that of gear oil mixed with the additives decreases at the high temperature.
참고문헌 (8)
- 이봉구, "Tribology 개론" (2005), 동명사
- F. T. Barcroft, "The Mechanism of Action Zinc Dithiophosphate as Extreme Pressure Agents", Trans. of Wear, 32, pp.26~35 (1982)
- M. Kawamura, "Organic Sulphur and Phosphorus Compounds Extreme Pressure Additives", Trans. of Wear, 31, pp.45~53 (1981)
- U. S. Choi, "A study on the Effect of Physicochemical factors in Wear Mechanism in a Lubricated Contact", KSLE, 4, pp.48~55 (1988)
- W. J. Bartz, "Solid Lubricant Additives", Trans. of Wear, 21, pp.421~432 (1971)
- J. M. Thorp, "The Mechanism of Lubrication by dispersed in Oil and the Effect of Zinc Dialkyl Dithio Phosphate Additive", Trans. of Wear, 23, pp.63~70 (1973)
- H. H. Abou, "Testing Thermal Stability for Base Oils Via Thermogravimetric Balance and Differentia Thermal Analysis", Lub. .Eng, 41, pp.450~475 (1985)
- "ASTM D 2670, "Measuring of Wear Properties of Fluid Lubricants", Falex Wear Test Machine Manual", ~ (1967)