Abstract
Images of the disk working surface are recorded during its revolution in order to forecast linear wear of PTFE-based composites. Particle agglomerates (enlarged 80×) of the investigated composite deposited on the disk working surface during the slide mating are seen in those images. Those agglomerates are commonly called the transfer film. The investigation capacities of a special tribotester equipped with video-stroboscope as well as the ways of image recording in a ‘bright’ and ‘dark’ field are presented in the paper. Photographs and schemes of subassemblies of the tribotester are given. The selected images of geometrical features of the transfer film recorded during revolutions of the disk are included. It was shown that images obtained in the ‘dark’ field are easier to be processed and computer analysed compared to the images obtained in the ‘bright’ field. A conceptual approach to the application of the computer analysis results for forecasting the wear of the PTFE composites under testing is presented.
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