CONTACT ANALYSIS OF THE SOLID POLYPROPYLENE - AISI P20 MOLD STEEL TRIBOSYSTEM

摘要

The contact between solid polypropylene (PP) and AISI P20 steel with 38 HRC was studied for several average roughness of the steel's surface. An instrumented pin-on-disk tribometer was used to measure the friction force during contact. The conditions used allow approaching to limited studied PP - AISI P20 steel tribosystem. A high influence of adhesive wear was observed and related to high local temperatures in the PP surface. The aim of this research was to determine the contact characteristics between solid PP and AISI P20 steel during dry sliding in a pin-on-disk system. This experimental study brings valuable results about the interaction between surfaces, types of contact and friction and wear phenomena.