Análise comparativa de custos de produção de chapas grossas entre o processo de tratamento térmico convencional ou pelo processo de resfriamento acelerado

Abstract

The heavy plates can be produced by different production routes and yet continue to meet satisfactorily the customer specification. There are two technologies for heavy plate heat treatment, being the conventional route heat treatment ovens known as FTT (fornos de tratamento térmico) and the alternative route by accelerated cooling known as CLC (continuous on line control). This study compares the production costs of the routes described above in order to find which one has the lower costs keeping the costumer specification. So that was possible to understand all costs related to both costs production routes for one given material highlighting the yield, CLC extras costs and BOF (Basic Oxygen Furnace) operational variable costs as the major costs that differentiate the production routes. Under this study conditions the FTT route showed lower costs per ton than CLC route.