Abstract
AnnotationToday, the sources of ionizing radiation are present in various spheres of human activity: during the uranium ore extraction, processing and benefication, in medicine, at exploration of outer space, in nuclear power plants, etc. Here rubber is used as insulating and protective materials, sealers, elastic links, dampers and wear-resistant linings of machines. Therefore, a problem of creating new radiation-resistant rubbers capable to operate in a radiation zone for a long time with no significant changes in their physical and mechanical parameters and durability is of great importance. In this work, some aspects of creating such rubber for use in vibrating machines (screens, feeders, conveyors) operating under extreme conditions while mining and processing of uranium ores are discussed. In our case, the extreme conditions include high long-term stationary cyclic loads, high and low temperatures and exposure to hard γ-radiation. Under such conditions, rheological and fatigue characteristics of rubber differ from those demonstrated under normal conditions, and such factors as dissipative heating, changes in characteristics over time (aging effects), development of damageability, etc., become essential and must be taken into account when choosing a proper type of rubber.
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