Composite antifriction materials for printing equipment’s friction units

Abstract

A paper summarizes formation of new composite antifriction material’s structure and properties after manufacture using the hot isostatic pressing technology with following heat treatment. It was shown the efficiency of the developed manufacture technology for new high speed composite bearing materials that was confirmed by the results of complex experimental and industrial tests. Such technology is capable of providing the functional properties high level. The experimental results of the examined composite material properties compared to the known nickel composite material have been presented. It was shown the dense antifriction films were formed on the contact surfaces during tribological tests. Antifriction films defend the contact surfaces against intensive wear and stabilize the friction unit's functioning in printing machine. The industrial tests of the ЕP975–CaF 2 antifriction composites showed increase in wear resistance by a factor up to 7 compared to the known bearings in high speed printing machines’ friction units at load 5 MPa and rotational speed up to 6000 rpm.