APPLICATIONS OF INTEGRATED BATCH ANNEALING FURNACE SIMULATOR

Abstract

An integrated process simulator with a capability to predict spatial and temporal evolution of temperature, microstructure, and mechanical properties in cold rolled coils during the batch annealing process has been developed. The model predictions have been validated using results obtained with large-scale industrial batch annealing operations. Potential applications of such a simulator include product development, efficient process optimization, and online control resulting in benefits in terms of overall cost reduction, energy reduction, productivity enhancement, and quality improvement. In this article, the salient features as well as the potential applications of this integrated Batch Annealing Furnace simulator have been presented. Furthermore, the utility of this simulator in designing the thermal cycle and optimizing the coil dimensions for improving furnace productivity has been demonstrated.

Keywords:

• Steel
• Cold working
• Cold rolling
• Sheet forming
• Annealing
• Batch annealing
• Process modeling
• Process simulator
• Simulation
• Optimization
• Cycle design
• Heat transfer
• Recrystallization
• Grain growth
• Mechanical properties

ACKNOWLEDGMENTS

The authors would like to thank the management of Tata Steel and TRDDC for their support and approval for publication of this work. The cooperation and help received at various stages from TRDDC and Tata Steel teams are highly appreciated. The authors thank Professor Mathai Joseph, Director, TRDDC, Professor E.C. Subbarao, Consultant, TRDDC, and Dr. Amit Chatterjee, Chief Technology Officer, Tata Steel, for their guidance and encouragement throughout the course of the joint project.

Notes

*BAFSIM is a trademarked product of Tata Research Development and Design Centre, Pune.