PURPOSE:To obtain the strip having a good shape until the front end of a succeeding coil is wound around a coiler by cutting the rolled strip and then compensating the decrease of tension by changing the pressure of a roll bender from a stationary state. CONSTITUTION:The continuous strip 1 formed by connecting raw sheet coils on the inlet side of the rolling mill is passed through a rolling stand 2 and is thereby rolled, following which the strip 1 is cut by a shear 3 on the outlet side of the rolling mill. The cut strips are successively coiled on the coilers, 5, 6 via deflector rolls 4. The shape of the rolled strip 1 is controlled by changing the pressure of the roll bender 7 from the stationary state by as much as to compensate the decrease of tension until the front end of the succeeding strip 1 is wound on the 2nd coiler 6 after the strip 1 is cut and is taken up on the 1st coiler 5 of the cold rolling mill which executes the above-mentioned continuous rolling. The shape of the strip 1 in the transient phenomenon state is controlled in this way by which the degradation of the shape is prevented and the yield of the product is improved.
展开▼
