Servizio Comunitario di Informazione in materia di Ricerca e Sviluppo - CORDIS

Pickling techniques

Pickling techniques have been developed to remove the highly corrosion resistant Al and Si layers which result from diffusion annealing of hot dipped electrical steels.
Different regimes are required depending upon whether intermediate cold rolling has been carried out to reduce the strip and coating thickness.

The techniques are only applicable to pickling of these high Al content coatings in preference to the base strip and as such have limited use outside the project or any successor.

Reported by

C-Tech Innovation Ltd
CH1 6EH Chester
United Kingdom