Abstract: The invention relates to a method for lubricating rolls, in particular for lubricating a rolling nip in rolling stands for rolled strips. According to the invention, said lubrication takes place using an oil-in-water dispersion whilst maintaining both a predetermined blend characteristic and a volumetric flow of the dispersion. The dispersion is prepared in the form of a homogeneous blend in a mixer (1) using adjustable quantities of water and oil. The dispersion is supplied to various spray zones (Zi) for a distribution (Bi) that is variable in width. Said method for roll lubrication can be improved by the allocation of at least one row of nozzles (Di) to each spray zone (Zi), which has a corresponding spray range width (Bi), each nozzle being controlled by at least one relay valve (Si).

Abstract: The invention relates to a method for lubricating rolls, in particular for lubricating a rolling nip in rolling stands for rolled strips. According to the invention, said lubrication takes place using an oil-in-water dispersion whilst maintaining both a predetermined blend characteristic and a volumetric flow of the dispersion. The dispersion is prepared in the form of a homogeneous blend in a mixer (1) using adjustable quantities of water and oil. The dispersion is supplied to various spray zones (Zi) for a distribution (Bi) that is variable in width. Said method for roll lubrication can be improved by the allocation of at least one row of nozzles (Di) to each spray zone (Zi), which has a corresponding spray range width (Bi), each nozzle being controlled by at least one relay valve (Si).

Abstract: An arrangement of pipelines of a high-pressure distribution network for liquid operating media, such as lubricants, coolants, and hydraulic pressure media for control members or drives, for a roll stand having a roll housing. The pipelines are supply pipelines, discharge pipelines, and distribution pipelines, wherein the roll stand has several consumers connected to the high-pressure distribution network for the liquid operating media. The supply lines and the discharge lines are combined to form modules of groups of pipelines mountable on the roll stand. The nominal pressure of the operating media is standardized within the pipelines of the high-pressure distribution network to a value of approximately 290 bar.