Title: Machine vision-based hot strip speed measurement system

Authors: Prabal Patra; Punit Rathore; Ashish Tiwari

Addresses: Automation Division, TATA Steel, Jamshedpur, India ' Institute of Data Science, National University of Singapore, Singapore ' Automation Division, TATA Steel, Jamshedpur, India

Abstract: Minimisation of crop loss has been a great concern to the steel makers since the inception of hot strip rolling process. It has been observed that the loss of steel due to essential cropping of transfer bar at hot strip mill is significantly high, in the absence of a reliable strip speed feedback to crop shear, which crops the irregular ends of hot strips. Therefore, an innovative transfer bar speed measuring system has been developed in-house based on the principle of machine vision. On successful implementation of this system, average yield loss due to crop-cut has been brought down, and thus, improvement of gross yield of HSM resulted in substantial recurring savings.

Keywords: HSM-yield; transfer bar scraps; hot strips; crop losses; transfer bar speed measurement; machine-vision-based speed measurement; non-contact speed measurement.

DOI: 10.1504/IJIT.2019.103187

International Journal of Instrumentation Technology, 2019 Vol.2 No.2, pp.165 - 177

Received: 06 Feb 2019
Accepted: 09 Aug 2019

Published online: 21 Oct 2019 *

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