| 摘要 |
<p>PURPOSE:To reduce the cost of installation by obtaining the changing quantities of a rolling speed and an unwinding tension by a specific equation, based on the changing quantities of a bending force, etc. and the changing quantities of a rolling speed and an unwinding tension operated separately from a shape control. CONSTITUTION:A shape-detecting roll 6 is provided with many shape sensors in its axial direction, and detects the tension of a metallic foil 8 at each position in its width direction. A shape-controlling computer 18 controls a foil shape through a control circuit 17, to obtain the changing quantities of b bending force B and a push-up force P. Further, a sheet-thickness controlling computer 20 computes the changing quantities DELTAv, DELTAt of a rolling speed V and an unwinding tension T obtained by removing the influence of AFC. On the other hand, the required changing quantities DELTAV, DELTAT are obtained by the equation I based on the changing quantities DELTAB, DELTAP and DELTAv, DELTAt of a bending force B and a push-up force P obtained by taking the AFC into consideration. In this way, the cost of installation can be reduced because the computers can be used in common.</p> |
