Utilização de critérios metalúrgicos no lingotamento contínuo para construção e validação de um modelo matemático da solidificação

Abstract

The need for high levels of competitiveness in the steel industry has led to increasingly use of solidification models by those who use continuous casting. During the construction of these models, it is necessary to validate the model results by comparing them with field results from the continuous casting machine being studied. Thus, this work aims to use quality and process metallurgical criteria to assist the construction and validation of a steel billet continuous casting solidification model. Once technical literature has many formulations for the heat transfer coefficients (mould and spray colling), one has analised the model results using nine combinations of these formulations and it was decided which combination resulted in the more accurate model of the process studied.