IMPROVEMENT OF SLAB REHEATING PROCESS AT USIMINAS THROUGH MATHEMATICAL SIMULATION

Basic characteristics and application examples of the mathematical simulator for reheating process in walking-beam type furnaces, that has been developed and applied to Usiminas plate mill line at Ipatinga, are shown in this paper. This is a bi-dimensional mathematical model solved by the finite vol...

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Bibliographic Details
Published in:Tecnologia em metalurgia, materiais e mineração materiais e mineração, 2012-09, Vol.9 (3), p.250-256
Main Authors: Antônio Adel dos Santos, Cristóvão Nery Giacomin, João Paulo Batista Silva
Format: Article
Language:English
Subjects:
Reheating furnace
Mathematical simulation
Thermomechanical processing
Online Access:Get full text
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Summary:Basic characteristics and application examples of the mathematical simulator for reheating process in walking-beam type furnaces, that has been developed and applied to Usiminas plate mill line at Ipatinga, are shown in this paper. This is a bi-dimensional mathematical model solved by the finite volume method, validated by temperature measurements inside the slab during heating and coded as a visual tool. Among these applications, the following can be highlighted: (i) determination of suitable furnace zone temperatures and residence times for processing steels by accelerated cooling technology; (ii) determination of slab average temperature at discharging as well as at each zone exit, supplying data to be fed to the automation system at the comissioning stage; (iii) analyses of slab thermal distribution through the reheating process, enabling operational optimization
ISSN:2176-1515
2176-1523
DOI:10.4322/tmm.2012.035