Developments of rubber material wear in conveyer belt system

Abstract

Regular degradation of rubbers contribute frequent maintenance of conveyer belt system. This paper investigates wear rate and mechanisms of rubber and associated influential parameters based on the information available in literature. Abrasion, fatigue and roll formation are dominate wear mechanisms that are influenced by load, sliding velocity, hardness and friction. Correlations among influential parameters and their effect on rubber wear was established in details. Archad's equation does not work for rubber wear but researchers have proposed equations similar to that. Adhesion wear forms roll in the smooth surface when tear strength of rubber is low. Wear caused by adhesion is abrasion when surface texture is harsh. Hysteresis enhances fatigue wear if the substrate asperities are round or blunt.

Study of effective parameters on wear behavior of rubbers based on statistical methods

“…It has been known that the wear mechanism of the tribo‐pairs plays an important role on friction coefficient and volume loss. During wear tests, if the deformation mode be entirely elastic and asperities be blunt, then the wear rate is negligible, and the overall wear mechanism is dominated by fatigue . The adhesion between the surfaces plays the main role, and perhaps hysteresis affects the overall friction coefficient.…”

“…During wear tests, if the deformation mode be entirely elastic and asperities be blunt, then the wear rate is negligible, and the overall wear mechanism is dominated by fatigue. 6 The adhesion between the surfaces plays the main role, and perhaps hysteresis affects the overall friction coefficient. However, as the deformation mode changes to plastic, the ploughed material by the passing of asperities is displaced to side ridges.…”

“…The service life of components in a system is limited because of friction and wear, which are unavoidable. When two surfaces are in relative motion under a certain pressure, abrasive wear is the main failure mechanism defined as a displacement of materials from the surface because of the protuberance of the hard abrasive particles …”

“…For instance, according to Archard, the volume of the worn material depends linearly on the applied load, sliding distance, angle of irregularity slope, and the hardness of relatively softer materials in contact. However, if the wear mechanism of the polymer includes fatigue wear in addition to abrasive wear, then Archard equation gives a higher level of uncertainty …”

“…However, if the wear mechanism of the polymer includes fatigue wear in addition to abrasive wear, then Archard equation gives a higher level of uncertainty. 6,20 Out of different abrasive wear mechanisms, three-body abrasive wear is the most common where hard abrasives result in severe wear and ultimate component failure. During abrasion, worn particles are trapped in the middle of two mating surfaces, which are in relative motion.…”