Metodologia para detecção de porosidade central em tarugos de lingotamento contínuo

• Ano de defesa: 2011
• Autor(a) principal: Roniery Roncally Aparecido Dayreel Gomes
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: materiais e de minas; Engenharia Metalúrgica; Metalurgia física; Engenharia metalúrgica
• Link de acesso: http://hdl.handle.net/1843/BUOS-967H3E

The aim of this argument is to analyze the potential of equipment and testing conditions of ultrasound inspection for detection of central porosity in high carbon steel billets produced by the process of continuous casting. In laboratory several probes and coupling were tested on samples of billets with artificial defects and it was possible to conclude about the best parameters, criteria and a model to estimate the of real defects size. The industrial tests were found a hundred percent feasible to segregate billets with and without defect and through the statistic analyze, we can verify the validity of the considered model.