Method of evaluating the coefficient of friction of frost-resistant sealing rubbersстатья
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Дата последнего поиска статьи во внешних источниках: 17 января 2018 г.
Аннотация:The results of an experimental study of the effect of the normal pressure in the range of 0.1-0.3MPa, a velocity of sliding of 1-100 mm/s, and a bulk temperature of 22 to-27A degrees C on the coefficient of sliding friction of an elastomer-steel friction pair have been presented. Two types of elastomeric materials have been considered, i.e., frost-resistant rubber based on synthetic propylene oxide rubber and this rubber filled with the antifriction additive of ultrafine polytetrafluoroethylene powder in an amount of 1 weight part per 100 weight parts. The results have shown the efficiency of filling rubbers with ultrafine polytetrafluoroethylene; the coefficient of sliding friction at temperatures below-15A degrees C decreases by more than two times.