| 摘要 |
PURPOSE:To provide an edging rolling method that the eccentricity of the web center is made as small as possible. CONSTITUTION:An edger mill which consists of a set of roll pair 52 constituting the main body of edger mill, horizontal roll pair 54, which is arranged on the line between the axial centers of those roll pair and with which the top and bottom surfaces of web are constrained and an intermediate roll 56 which is arranged between them is used. When the offset value (a-b)/2 of the center (where (a) and (b) are one-side widths of respective upper and lower flanges) is positive, edging rolling is executed by making the position of web of a material to be rolled above the center of the distance between the axial centers of the roll pair and, contrarily, when it is negative, rolling is executed by making it below the center of that. |
