Roll cooling and/or lubricating device for cold strip rolling mills, in particular fine strip and foil rolling mills

摘要

Roller-cooling and/or lubricating device comprises a crosspiece (9) assigned to the rollers (3-6) and having spray nozzles (8) for introducing cooling and lubricating materials, especially rolling oil and/or emulsions. The spray nozzles have a valve equipped with a piezo-actuator as adjusting part.