| 摘要 |
PCT No. PCT/JP94/01522 Sec. 371 Date Jul. 6, 1995 Sec. 102(e) Date Jul. 6, 1995 PCT Filed Sep. 14, 1994 PCT Pub. No. WO95/07776 PCT Pub. Date Mar. 23, 1995A control method of strip travel for ensuring, in a tandem rolling operation for metal strips, stable positioning of rolled work during the rolling process including the rolling of the leading and trailing ends of the work, and a tandem rolling mill in which the method is used are disclosed. In the control method of strip travel for the tandem strip rolling equipment comprising at least two roll stands and including between the roll stands a rolled work tension measuring device having independent tension detectors on both working and driving sides and a lateral position measuring device for measuring the lateral position of rolled work, the lateral position of the rolled work at the position of the rolled work tension measuring device is detected directly or estimated from an output of the lateral position measuring device, a tension difference representing the difference between tensions actually acting on the working and driving sides of the rolled work at the position of the rolled work tension measuring device is computed from the detected or estimated lateral position and the outputs of the working-side and driving-side detectors of the rolled work tension measuring device, and the difference between screwdown settings on the working and driving sides of each roll stand is controlled aiming at reducing the tension difference to zero.
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