How can we increase the bath life of Activation and when should we discard the bath?

24 January 2016 1 7K Report

In Zn Phosphate process, how can we increase the bath life of the Activation bath and when and what is the indication other than pH for bath discarding?

prof V.S Muralidharan

there is a chance for carbonation.add accelerators and use the bath. All chemicals are in reduced concentration ; do analysis and add salts

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