Análise de dados de vida dos freios de um redutor secundário do sistema de basculamento de convertedores de uma aciaria

Abstract

The system and components Life Data Analysis is still a few applied methodology in the Brazilian industry in general and mainly in the Steel industry. This research evaluates the application of the methodology and performs the analysis in a critical equipment of a Steelmaking Plant. Critical systems, to achieve results focused on increased safety and performance, require the use of accurate analysis from the available failures data and Reliability Engineering concepts. The system evaluated in this research are the brakes of the BOF Converter vessel tilting system. This highly critical system, since it can impact the people safety people and equipment of the Steelmaking and as a consequence in the production company result. After evaluation and compilation of failure history data, Weibull ++ software analysis is performed, identifying the system current reliability in a quantitative way and the characteristic failure curves. With the result it is possible to evaluate the current level of maintenance in the system indicating the need to implement qualitative analyzes or investments to reach the reliability level required for the system, aligned with the focus of the maintenance strategy to be defined also as a result of the numbers. The data used in the research and development of the works are real and validated in the history of ArcelorMittal Tubarão TI maintenance system and confirm the qualitative analysis currently performed in the area maintenance.