Aplicação da metodologia lean seis sigma na redução do tempo de desalinhamento de correias transportadoras

Abstract

This paper of course end presents the application of the Lean Seis Sigma methodology, using the steps of the PDCA method (Plan, DO, Check and Acrion) in the development of a work performed at the area of ore loading in the VALE S.A. the goal of this paper Lean Seis Sigmawas to reduce the time of variability of the events of breaking up of transport belt which cause direct impact in the indications of DI and HMC of the loading. In this paper the main technics are presented and also the statistic tools used in the steps of the PDCA method such as brainstorming, sequencial graphic, unfolding, control chart, Pareto graphic, FTA and boxplot. The used methodology as to the inquiry had a character of case study, for it was performed a practical study when it was obtained a win reduction of 43,39% of the time of the belt stop which transport by breaking Up. It concludes, then, that the efficiency of the application of the Lean Seis Sigma methodology is good through the attainment of the proposed goal