RESEARCH OF THE UNEVENNESS OF THE SPINNING PRODUCTION’S SEMI-FINISHED PRODUCTS BY THE METHOD OF SPECTRAL ANALYSIS
Abstract
The article describes the characteristics and types of unevenness of semi-finished products of spinning production, as well as their influence on the quality of the finished product. A technique for performing spectral analysis of semi-finished products and calculating the wavelengths of the spectrogram is described. A spectral analysis of such semi-finished products as carding sliver and sliver from the first and second stages of draw frames with a linear density of 4.9 Ktex with a coefficient of variation (CVm) equal to 3.29%, 3.71% and 2.97%, respectively, was performed. Their wavelength was calculated taking into account the filling parameters of the studied machines. The reasons and places of formation of unevenness of semi-finished products are revealed and their assessment was given.