Rolling method of high-temperature multi-stage roller and high-temperature multi-stage roller

摘要

At the time of high-temperature multi-stage rolling, almost with the roll shift device and the rolling material board cross direction where one side of the roll chamber body ahead roll diameter increases facing toward the roru edge in order to be located on opposite side of the roll chamber body where the said tip getting fat section of the said work roll parallels to roll axial direction mutually, arranges the work roll of the pair which has the roll contour form which possesses the getting fat section in the roll end vicinity side, makes the aforementioned work roll move according to roll axial direction width board Crown control possible first control means and rolling material board width of the whole board of the central part and both endsAlmost provides with the board Crown control possible second control means only of the central part with direction, actualizes effective thermal Crown control.