| 摘要 |
PURPOSE:To execute rolling to form a satin surface without providing roll marks and the transfer marks by the exfoliation of dulling powder onto the surface of a strip by using integral type backup rolls for plural finish passing stages of a multi-stage cluster type reversible rolling mill. CONSTITUTION:Split center backup rolls and split side backup rolls are changed with center backup rolls 11, 12 and side backup rolls 13 which are integral in the axial direction upon ending of preliminary rolling. Further, upper and lower work rolls are changed with dull rolls 14 having ruggedness on the surface and the strip is subjected to finish rolling by reversibly passing the mill plural times. The reversible rolling to provide the satin surface to the surface of the strip 9 without forming the roll marks or the transfer marks by the exfoliation of the dulling powder onto the surface of the strip is executed by using the backup rolls 11, 12, 13 which are integral in the axial direction. |
