Wear of Various Textile Materials:Part 4 : The Effect of Yarn Speed on Wear Rate

概要

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The wear rate of copper cylinders rubbed by a running yarn is measured against various values of yarn speed on the test apparatus described in the earlier paper. The purpose is to investigate the effect of yarn speed on the wear rate, and to study the mechanism of wear.<BR>The results of the test reveal that the specific rate of wear decreases as the yarn speed increases. The shifting of cotton wax due to frictional heating fails to explain the test results mentioned above, because an increase in yarn speed shortens the duration of contact of the yarn with the copper cylinder. Hence it seems that the velocity dependence of the growth of the junctions is the main reason for the decrease of the specific rate of wear in a high yarn speed range. In this type of test apparatus the surface temperature of the yarn in contact with copper cylinder is relatively low ; thus the mechanical effect becomes more predominent than the temperature effect does.
社団法人日本繊維機械学会の論文