Effective cooling of work rolls in strip rolling

Abstract

An examination has been made of the effectiveness of roll cooling as applied to strip rolling, taking into account practical considerations such as the spray location and positioning, coolant flowrate, and rolling temperature. It is indicated by the results that, for cold rolling, the most effective cooling can be achieved by commencing spray cooling at the exit side of the roll gap and by providing a large spray contact angle. However, for hot rolling, cooling should commence at least 45° from the roll gap exit and a high spray flux density with relatively small spray contact angle is more appropriate.

MST/642