Investigating the consequences of Damage rates on MSEN-8 by Thermal spray coating

Author’s Name : Udup | Jain

Volume 01 Issue 01  Year 2014  ISSN No:  2349-3860  Page no: 23-25

Abstract:

A lappet hook is a component of ring frame of a textile machine during a factory. The lappet hook imparts twist to the yarn. The lappet hook facilitates to wind the yarn on the winder. High contact pressure (up to thirty five N/square mm)is generated between the thread and surface of lappet hook throughout winding, mainly owing to force. This pressure results in degradation of internal surface of the hook that considerably affects its operating life. the target of this study was to reinforce the working lifetime of the hook so as to decrease the idle time needed to reinstate the lappet seize on the spindle sporadically throughout spinning. The target was dole out by means that of thermal spray coatings, wherever the result of the coatings on the extent of damage and therefore the wear characteristics of the rings were examined. Detonation gun sprayed coatings, particularly WC-Co, was compared in this study on MSEN8 of the lappet hook. The target was dole out by means that of arduous coatings, wherever the result of the coatings on the extent of damage and therefore the wear characteristics of the lappet hook were examined. The study compared thermal spray coatings; particularly D-GUN sprayed WC-Co on MSEN8. Wear tests were performed on Pin-On-Disc equipment victimization ASTM G99 normal for the uncoated and coated samples of high tensile steel. The results of coating experimental wear knowledge generated, of the worn samples is employed to investigate the damage behavior of coated yet as uncoated high tensile steel. The results show that WC-Co coatings have been with success deposited on MSEN8 grade of high tensile steel by Detonation Spray method. The coated MSEN8 has shown considerably less wear loss as compared to reveal MSEN8. The cumulative volume loss for detonation sprayed coatings will increase with increase in load. The WC-Co coating has undergone minimum wear. The WC-Co-En14B coating-substrate combination has shown minimum wear.

Keywords:

Wear rates, Thermal spray coating, Lappet hook.