Chilled roll water side descaling is carried out to remove scale, rust, and mineral deposits from internal cooling passages. These deposits restrict water flow, reduce heat transfer efficiency, and cause uneven cooling and surface quality issues. The process involves isolating the cooling circuit and circulating a compatible chemical descaling solution with corrosion inhibitors.

After cleaning, the system is thoroughly flushed and neutralized to remove chemical residues. Proper descaling restores cooling performance, ensures uniform temperature control, improves process stability, and extends the service life of the chill roll system.