| 摘要 |
PURPOSE:To restrain the deviation of the center of the web and the buckling in the middle of the web in a product by actuating tensile force to the web part of a material to be rolled on the inlet side of a finishing universal mill. CONSTITUTION:When rolling is performed by a 1st finishing universal mill UF1 to reduce the height of the web. the web surface of the material to be rolled is rolled down by the horizontal rolls of a roughing universal mill UR situated on the inlet side of the finishing universal mill and, at the same time, the number of rotation of the horizontal rolls of the UF1 or UR is adjusted to actuate a tensile force to the web part of the rolled stock intervening between both mills in the rolling direction. In this way, when the height of the web is reduced by the UF1, the compression in the direction of the web height generated in the web between the vertical rolls is relieved by the tensile force in the rolling direction and the buckling of the web surface is prevented as a result. |
