Análise dos dados de vida do rolamento de giro da torre de uma máquina de lingotamento contínuo

Abstract

The growing demand for cost reduction has led companies to increasingly do a better management of their assets. Within a Continuous Casting unit, one of the most important components is the slewing bearing of the ladle tower, which is about 5 meters in diameter, weighs approximately 7 tons, costs around R$ 1 million and for its exchange It takes ten days of production stoppage. This study proposes to analyze the life data of the bearings of the ArcelorMittal Tubarão plant. For this, a software will be used to help identify the probabilistic model that best represents the existing data considering the faults and the censored data and will allow to obtain important information for the decision making in relation to this component. The reliability of the component will be calculated for a given period, identified if the failures are occurring due to infant mortality or old age, determined the necessary inventory and made the budget forecast for component replacement. The reliability of the component will be calculated for a given period, it will be identified if the failures are occurring due to infant mortality or old age, and the best time will be determined for the replacement of the component stock. All the results obtained will be considered in order to define the best management strategy for this component.