Title:
METHOD OF CALCULATING SHEET THICKNESS SCHEDULE FOR TANDEM MILL, AND ROLLING PLANT
Document Type and Number:
WIPO Patent Application WO/2021/084636
Kind Code:
A1
Abstract:
This method of calculating a sheet thickness schedule comprises a plurality of steps. One of the steps involves acquiring a rolling model formula, including a rolling load model or a motor power model. Another step involves determining whether there has occurred a parameter restriction that restricts at least one parameter among the rolling load, the motor power, and the rolling reduction ratio of respective rolling stands. Yet another step involves selecting, for each of the rolling stands, a derivative according to the result of the determination so as to select a first derivative when no parameter restriction has occurred and select a second derivative when a parameter restriction has occurred. Yet another step involves using a matrix including the derivative, either the first derivative or the second derivative, that was selected according to the determination result to correct an exit-side sheet thickness of each of the rolling stands.
Inventors:
SANO MITSUHIKO (JP)
Application Number:
PCT/JP2019/042506
Publication Date:
May 06, 2021
Filing Date:
October 30, 2019
Export Citation:
Assignee:
TOSHIBA MITSUBISHI ELEC IND (JP)
International Classes:
B21B37/20; B21B37/00
Foreign References:
| JP2011036887A | 2011-02-24 | |||
| JP2012121063A | 2012-06-28 | |||
| JP2006281231A | 2006-10-19 | |||
| JP2003164905A | 2003-06-10 | |||
| CN109433830A | 2019-03-08 |
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
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