Temperature of the Rubber Wheel during Wear Testing on a Lambourn Abrader

Publisher Website
Google Scholar
Abstract
Contact of a slipping rubber wheel with the grinding wheel during wear testing on a Lambourn abrader cools the rubber wheel in the contact zone because: (a) the relatively high thermal conductivity of the grindstone conducts the heat into the grindstone; and (b) there is little or no sliding, and therefore no heat generated by sliding. The temperature increase, measured on the rubber wheel outside the contact zone, results from compression and adhesional or tangential deformation hysteresis, and is not from sliding friction. Therefore, the temperature in the wear zone is only 5–10°C above the ambient, and does not simulate the temperature developed in a tire during use. These conclusions are based on real time infrared thermometry of a carbon black filled rubber wheel rotating against an alumina grindstone, a steel wheel and a HDPE wheel at slips ranging from 0 to 13.5% and speeds from 65 to 400 rpm.

This publication has 0 references indexed in Scilit: