Aplicação da metodologia Seis Sigma para alteração do cadinho utilizado na produção de clínquer em fornos de alta temperatura

Abstract

Dental cements are used in the treatment of root canals. The main raw material for these cements is clinkers, obtained from mixing and burning of three mineral oxides. During the production of clinkers, this product is burned at 1450 ºC, requiring a crucible with a high melting temperature, normally, platinum is used. Due to the high acquisition and maintenance costs, we studied the possibility of exchanging this platinum crucible for a set of alumina and mullite. This work presents the application of the Six Sigma methodology in optimizing processes in the manufacture of clinker at Angelus, with the aim of reducing costs and increasing productivity. Through the stages of DMAIC (Define, Measure, Analyze, Improve and Control), efficient and errorfree project planning was carried out. The results obtained indicate that replacing the crucible provided a reduction in production costs, due to the reduction in maintenance and operational expenses caused by the reduction in the total number of burns to complete a production batch.