| 摘要 |
PURPOSE:To perform accurately the edging of a steel sheet without deforming it, by edging the steel sheet while feeding the steel sheet in a state of properly slanting it to its advancing direction with respect to a pair of vertical rolls in rolling a steel sheet for adjusting its sheet width. CONSTITUTION:In edging a steel sheet S by two vertical rolls 1, 1, the sheet S is fed by transferring it on table rolls 2 while slanting it to its advancing direction by a proper angle theta. The steel sheet S is bitten by the vertical rolls 1, 1, slanted relatively to the rolls 2, and is subjected to rolling reduction in its width direction under a rolling load F of the rolls 1, 1. At that time, an upward force (f) produced by the resultant vector of a rotational direction (fR) of vertical rolls 1, 1 and an advancing direction (fS) of steel sheet S, acts on the side edges of sheet S to produce the upward changes at the side edges and the downward warped deformation at the central part of steel sheet S. The downward deformation comes into contact with the rolls 2, and the sheet S is supported by the reaction of roll 2 to be balanced by the roll 2, thereby edging the sheet S without causing its buckling. |
