Pechiney VSS lines of Votorantim Metais CBA start their operation in 1977. Over the years we had an increase in the average lining life of the pots from 1,300 days to 3,000 days. Also a reduction in CVD (Cathode Voltage Drop) allowing us to have a better operational stability.
In this paper we will show what actions were taken and the results obtained.
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