Apparatus for automatically supplying oil to a basti-dor of a hot rolling mill.

摘要

Apparatus for automatically supplying oil to a four-high hot strip mill includes oil sprays for the back-up rolls and a continuously operating pump for supplying oil through a three-way valve either to the sprays or to a recirculating system. A strip detector on the exit side of the mill positions the three-way valve to supply oil to the sprays when it first detects the leading end of the strip and a strip detector on the entry side of the mill positions the three-way valve to recirculate the oil shortly before the trailing end of the strip reaches the mill. The control system may be used with other types of mills and workpieces.