Control devices or methods specially adapted for metal-rolling mills or the work produced thereby

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21BROLLING OF METAL

B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby

B21B37/005Control of time interval or spacing between workpieces B21B37/007Control for preventing or reducing vibration, chatter or chatter marks B21B37/16Control of thickness, width, diameter or other transverse dimensions B21B37/165responsive mainly to the measured thickness of the product B21B37/18Automatic gauge control B21B37/20in tandem mills B21B37/22Lateral spread control Width control B21B37/24Automatic variation of thickness according to a predetermined programme B21B37/26for obtaining one strip having successive lengths of different constant thickness B21B37/28Control of flatness or profile during rolling of strip, sheets or plates B21B37/30using roll camber control B21B37/32by cooling, heating or lubricating the rolls B21B37/34by hydraulic expansion of the rolls B21B37/36by radial displacement of the roll sleeve on a stationary roll beam by means of hydraulic supports B21B37/38using roll bending B21B37/40using axial shifting of the rolls B21B37/42using a combination of roll bending and axial shifting of the rolls B21B37/44using heating, lubricating or water-spray cooling of the product B21B37/46Roll speed or drive motor control B21B37/48Tension control Compression control B21B37/50by looper control B21B37/52by drive motor control B21B37/54including coiler drive control B21B37/56Elongation control B21B37/58Roll-force control Roll-gap control B21B37/60by control of a motor which drives an adjusting screw B21B37/62by control of a hydraulic adjusting device B21B37/64Mill spring or roll spring compensation systems B21B37/66Roll eccentricity compensation systems B21B37/68Camber or steering control for strip, sheets or plates B21B37/70Length control B21B37/72Rear end control Front end control B21B37/74Temperature control B21B37/76Cooling control on the run-out table B21B37/78Control of tube rolling