SURFACE MODIFICATION OF RING-TRAVELER OF TEXTILE SPINNING MACHINE FOR SUBSTANTIALITY

In this report, a study of the wear mechanisms involved in the spinning ring and the traveler of textile industry are presented. These components, after surface processing with various coatings techniques, were analyzed on the test rig so as to analyze the wear mechanism. The objective was accomplished by comparing various plasma sprayed coatings on E52100 steel pins using a pin-on-disc machine. The surface morphology as well as mechanical properties of the deposited coatings, namely WC-CoCr, Al2O3 +TiO2 (Alumina-Titania) and Cr3C2NiCr, as well as uncoated E52100, were comparatively studied. This study elucidates towards improving the working life of the ring in a textile mill in the spinning operation. An x-ray diffractometer MD) and scanning electron microscope (SEM) were employed to characterize the unworn and worn surfaces of the specimens. The study revealed that the wear rate of plasma sprayed thermal coatings enhanced with augmenting load. The plasma sprayed WC-Co-Cr, Cr3C2 NiCr, Al2O3 + 13TiO(2) coatings developed on workpiece pins exhibited a notable decrease in volume loss of the material as compared to uncoated E52100 substrate. WC-Co-Cr coating turned out to be the best performer in terms of the lowest cumulative volume loss among all the variants of coatings.