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Rubbers are interesting materials and are extensively used in many mining industries for material transportation. Wear of rubber is a very complex phenomenon to understand. The present study aims to explain the influence of rock properties on wear of M and SR grade rubber used in top cover of conveyor belts. Extensive laboratory experiments were conducted under four combinations of normal load and sliding speed. The wear of both the rubber types were analyzed based on the rock properties like shear strength, abrasivity index and fractal dimension. A fully instrumented testing set up was used to study the wear of rubber samples under different operating conditions. In general, wear was higher for M grade rubber compared to SR grade rubber. Increase in shear strength of rocks depicts decreasing trend for the wear of M and SR grade rubber at lower load conditions. Moreover, a higher load combination displays no definite trend in both the rubbers. The strong correlation between the wear of rubber and frictional power for all rubber-rock combinations has given rise to the parameter A, which reflects the relative compatibility between the rubber and rock. Increase of Cerchar’s Abrasivity Index of rocks shows gradual enhancement in wear for M grade rubber in all the load and speed combinations whereas, it fails in SR grade rubber due to its higher strength. The wear of rubber tends to decrease marginally with the surface roughness of rocks at highest normal load and sliding speed in M grade rubber. However, the wear of M and SR grade rubber is influenced by the surface roughness of rocks.
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Czasopismo
Rocznik
Tom
Strony
1787--1793
Opis fizyczny
Bibliogr. 12 poz., rys., tab.
Twórcy
autor
- Indian Institute of Technology, Kharagpur, West Bengal, India
autor
- Indian Institute of Technology, Kharagpur, West Bengal, India
autor
- Indian Institute of Technology, Kharagpur, West Bengal, India
autor
- Kongu Engineering College, Erode, Tamil Nadu, India
Bibliografia
- [1] K. U. M. Rao, Experimental and theoretical investigations of diamond impregnated drilling, Ph.D. thesis, Indian Institute of Technology Kharagpur, India, 1994.
- [2] K. U. M. Rao, B. Misra, Principles of rock drilling, A.A. Balkema, 1999.
- [3] N. Viswanath, D. G. Bellow, WEAR 181, 42 (1995).
- [4] Z. Rymuza, Wear in polymer micro-pairs, Proceedings of 3rd International Conference on Wear of Materials, 125-132 (1981).
- [5] S. B. Ratnar, Connection between the wear resistance of plastics and other mechanical properties, Sov. J. Plast. 7, 37 (1964).
- [6] R. B. Lewis, Mech. Eng. 86, 32 (1964).
- [7] S. K. Rhee, WEAR 16, 431 (1970).
- [8] J. K. Lancaster, Friction and wear, in A.D. Jenkin (Ed.), Polymer Science 1972.
- [9] J. R. Atkinson, K. J. Brown, D. Dawson, J. Lubr.Technol. 100, 208 (1978).
- [10] M. K. Kar, S. Bahadur, WEAR 30, 337 (1974).
- [11] E. M. Shvetsova, I. V. Kragelskii, Friction and wear in machines, Collection VIII, Published by USSR, Academy of Sciences 1953.
- [12] S. K. Pal, B. Misra, A. K. Bhowmick, Plast. Rub. Compos. Pro. 25, 332 (1996).
Uwagi
PL
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-db92c6e1-4d64-4e89-8ad8-222003d816b3