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MECHANICAL AND ULTRASOUND PROPERTIES OF CONVEYOR BELT RUBBERS

Helena Valentová

First published: 2011-06-20https://doi.org/10.5593/sgem2011/s03.125View metrics

Abstract

Knowledge of physical, mainly mechanical, properties of conveyor belt rubbers belongs to important preconditions of trouble-free op eration of conveyor belt transportation. Mechanical nature of rubber materials used in belt transportation have among others an immediate effect on the friction between rubber layers of a conveyor belt and a driving drum and/or on the total power consumption. This knowledge is relevant not only in the case of new belts where it help s their optimal selection with respect to the nature and quantity of transported material but also du ring monitoring the belt changes caused by operation. Measurements of rubber mechanical prope rties are mainly performed in dynamical regime, e.g. a sinusoidal stress is applied to the material under test and the properties of materials are expressed by complex shear ( G*) or Young’s ( E*) modulus. Mechanical properties of rubbers at higher frequencies are more often characterized by ultrasound impedance measurements. Motivation of this contributio n stems from the potential utility of ultrasound as a non- destructive in situ technique to evaluate and to monitor mechanical properties of materials composing industrial equi pment including conveyor belts. Profound laboratory comparison of both techniques results must precede the industrial employment.

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Publication details

Title
MECHANICAL AND ULTRASOUND PROPERTIES OF CONVEYOR BELT RUBBERS
Authors
Helena Valentová
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference
Publisher
Stef92 Technology
Year
2011
Pages
Not available yet
ISSN
1314-2704
ISBN
Not available yet
Language
en
Publication type
Conference Paper
Keywords
Conveyor beltmechanical propertiesultrasonic properties
References5

  1. McCrum N.G., Read B.E., Williams G. : Anelastic and Dielectric Effects in Polymeric Solids, J. Wiley & Sons, London 1967.

  2. Donth E.: The Glass Transition, Springer, Berlin 2001.

  3. Lawandy S.N., Halim S.F. and Afifi H.A. Ultrasonic and Mechanical Measurements of the Detection of Crosslink Density of SBR and NBR Based on Various Curing Systems. J Appl. Polym. Sci., vol. 112, pp 366-371, 2009.

  4. Alig I., Tadjbakhsch A., Zosel A. Comparison of Ultrasonic Shear Wave and Dynamic-Mechanical Measurements in Acrylic-Type Copolymers. J Polym. Sci. Part B: Polymer Physics, vol. 36, pp 1703-1711, 1998.

  5. Sperling, L. H. Introduction to Physic al Polymer Science, 2nd Edition, New York, John Wiley & Sons Inc., 1992.

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