METHOD AND DEVICE FOR LUBRICATING THE CYLINDERS OF A ROLL STAND

摘要

A method for lubricating the cylinders of a roll stand, for roll nip lubrication in a roll stand for a roll band. A mixture of water and oil is produced by a mixing and spraying device, which is supplied with water by a first supply line (3) and is supplied with oil by a second supply line (2). The mixture is sprayed to the strip and/or into the roll nip and/or to at least one of the cylinders of the roll stand. The water flowing to the mixing and spraying device (10) is heated by a heating device (6) provided in the first supply line (3) for a predetermined period of time set by controlling a control unit (9).

主权项

1. A method for lubricating cylinders of a roll stand, for roll nip lubrication in the roll stand for a roll band, comprising:
producing a mixture of water and an oil by a mixing and spraying device, the producing comprising supplying water by a first supply line and supplying oil by a second supply line; the spraying comprising spraying the mixture onto a strip of the roll band and/or into a roll nip between the cylinders of the roll stand and/or onto at least one of the cylinders of the roll stand; interrupting the supply of oil for a period of time of a cleaning phase which is predetermined by a control unit, and during the cleaning phase, heating the water flowing to the mixing and spraying device to more than 60° C. by a heating device installed in the first supply line.