Patent ID: 7690235

Claim:
A method of cooling and/or lubricating rolls and/or rolling stock, comprising the steps of applying a cooling medium to the rolls from a plurality of nozzles/nozzle rows; applying, for lubrication purposes, base oil, without water as a base medium, directly to the rolling stock in front of a roll gap, the cooling medium being applied to the rolls separately from the base oil; and injecting, in the roll gap, base oil, without water as a base medium, in a very small amount in comparison with a conventionally used amount; whereby an incompressible separation layer is formed between the rolling stock and the rolls, wherein the step of applying cooling medium includes the step of applying, at an entry side, cooling medium to surfaces of the rolls from first nozzles/nozzles rows, and the step of applying base oil includes applying, at the entry side, base oil from second nozzles/nozzle rows at an angle into the roll gap and onto the rolling stock, and from third nozzles/nozzle rows vertically to upper side and lower side of the rolling stock, and wherein the step of applying cooling medium from first nozzles/nozzle rows includes applying cooling medium to both upper and lower rolls of the roll set, and the step of injecting base oil from the second nozzles/nozzle rows includes injecting base oil in the roll gap between a lower side of the rolling stock and the lower roll and between an upper side of the rolling stock and the upper roll, and wherein second and third nozzles/nozzle are being separated from the first nozzles/nozzle rows by partitions.