Table of Contents

    • 36

    • Replacing Obsolete Speed and Position Sensors in Metals Applications

      This paper will discuss specific methods for gathering mill speed and position sensor information, understanding the installed base of equipment, and analyzing the risks of downtime caused by sensor failure and/or replacement availability. Replacement schemes that can effectively fit maintenance budgets will be compared with small capital refurbishment projects.  Methods to establish replacement standards with common parts will also be explored.

    • 44

    • Performance Improvements Achieved From Tenova Core’s Upgrade of the Reheat Furnace Controls at SSAB Iowa

      SSAB operates a walking beam-type reheat furnace to heat slabs for rolling into plate at its Montpelier, Iowa, USA, facility. In 2014, Tenova Core was contracted to provide the turnkey upgrade to the combustion control and material handling control hardware and software, the Steckel furnace combustion control hardware and software, and the corresponding human-machine interface, and also to provide a new on-line thermal model-based level 2 heating control system. This paper discusses the upgrade project and resultant performance improvements.

    • 54

    • Innovative Surface Quality Control

      This paper describes how a low-cost automated surface inspection system has been developed and deployed for hot band surface quality control mainly for furnace tear defects. The first part of the paper will discuss the development and integration of the system with the mill environment using the ArcelorMittal Indiana Harbor West 84-Inch hot strip mill R2 camera system as an example. The second part will discuss the system deployment and how the system is being used for hot band surface quality control.

    • 70

    • An Introduction to Applying Network Intrusion Detection for Industrial Control Systems

      A recent cyberattack targeted an industrial steel plant and resulted in physical damage. The attack took control of the steel plant’s industrial control systems. This paper will provide a primer on intrusion detection, consisting of an application on an industrial computer. Also covered are the methods attackers use to penetrate networks and how to know when a network may have been compromised. The paper also discusses the proper methods of network segmentation and the deployment of an intrusion detection system.

    • 70

    • New Pseudo-3D Dynamic Secondary Cooling Model Implementation and Results at ArcelorMittal Burns Harbor

      This paper discusses a 2D dynamic secondary cooling model that incorporates experimentally determined heat transfer coefficients for the individual nozzles which are a function of spray water flow, strand surface temperature, and position within the area beneath the spray for temperatures of 400 to 1,200°C. It has been deployed on all four strands of Burns Harbor’s two slab casters and has virtually eliminated off-corner transverse cracks on plate product from No. 1 caster and has contributed to minimization of slab bowing incidents on the No. 2 caster.