Abstract

During the last ten years numerous papers on the erosion of materials have been published. Many contain general conclusions based either on limited research material or without considering all the factors involved. This paper concentrates attention on some of the laws of erosion which, hitherto, have received little study, and which are important in the first instance for the designing and operation of impact mills. It is shown, that variation within the limits of particle concentrations, causes an up to threefold change and the presence of a comparatively small amount of nonabrasive impurities a more than twofold change in erosion. Data are provided to illustrate the complexity of evolving a mathematical model for calculating the effect of the impact velocity of abrasive particles, particularly at higher impact velocities.

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