| 摘要 |
PURPOSE:To improve the cross-sectional shape at the width ends of a rolling material and to prevent the meandering of the material by providing grooved parts, enabled to adjust the inclinations of their taper surfaces, and straight parts to upper and lower work rolls different in diameter, respectively. CONSTITUTION:A rolling mill is constituted so that grooves 6, 7 are provided to the outer circumferences at the desired positions in the axial directions of upper and lower work rolls 1, 2 having different diameters respectively and the means 12 for adjusting the inclination angles of the taper surfaces of grooves are provided to the rolls 1, 2. The groove 6 part of one side is adjusted to the width-end part of one side of a rolling material 5, and the groove 7 part of the other side is adjusted to the width-end part of the other side of material 5, by shifting the rolls 1, 2 of this mill in their axial directions respectively. And rolling is performed by adjusting the inclination angles of the taper surfaces of grooves 6, 7 in accordance with the rolling conditions. |
