F-0204 ゴムのパターン摩耗における摩擦・摩耗モニタリング(S34-1 トライボロジー現象のその場観察)(S34 トライボロジー現象の新しい計測・観察法)

概要

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The friction and wear behaviors of a pattern abrasion of rubber during sliding were studied. A rotating rubber wheel made from unfilled isoprene rubber was rubbed against a plano-convex cylindrical lens and variations of friction and wear were monitored. Distribution maps of the coefficient of friction, wear depth and surface profile along the circumference of rubber specimen were obtained by using a synchronous signal with the rotation. The coefficient of friction decreased in increasing the number of revolutions and became fluctuated. Since the wear depth was measured using the differential transformer as the displacement of the rubber surface under contact, fluctuations in the wear depth at the steady state were smaller than the surface profile observed by the non-contact surface profile meter. Many stripes representing small cracks or ridges were observed in the distribution maps of surface profile at the initial state of rubbing. They kept on existing until the steady state of rubbing. Cracks or small ridges which were to become large ridges were defined at the initial state, however a number of small cracks were formed on the rubber surface.
2001-08-22