Title:
圧延機の制御方法及び制御装置
Document Type and Number:
Japanese Patent JP3607029
Kind Code:
B2
Abstract:
The present invention includes the following constituent elements, namely: firstly, calculation of the set-up rolling conditions having the target values of rolling load, strip width and strip crown and the set values of the actuators on the basis of externally given rolling information before rolling of the stock materials; followed by measurement of the rolling status including rolling load, strip width and strip crown during rolling of the stock materials, and calculation of the deviations between the observed values of rolling status for the previous strip and the calculated values of the set-up rolling conditions for the next strip corresponding to the said observed values; and further followed by successive correction of the actuator set values in respect of the next strip on the basis of the deviations between the respective observed values of rolling status for the previous strip and the respective calculated values or the set-up rolling conditions for the next strip when the deviation between the target strip crown for the previous strip and the target strip crown for the next strip is zero in rolling the next strip after rolling the previous strip. By virtue of being so constituted, the present invention is able to finish the strip crown and strip flatness of the succeeding stock material to target values with high precision without recourse to the use of crown ratio heredity coefficients and shape disturbance coefficients by utilizing the rolling results for the previous strip for rolling control of the next strip.
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Inventors:
Abe Kaji
Tomoyuki Tezuka
Tomoyuki Tezuka
Application Number:
JP578897A
Publication Date:
January 05, 2005
Filing Date:
January 16, 1997
Export Citation:
Assignee:
Toshiba Mitsubishi Electric Industrial Systems Co., Ltd.
International Classes:
B21B37/00; B21B37/28; B21B37/38; B21B13/02; B21B31/18; B21B37/42; (IPC1-7): B21B37/00; B21B37/38
Domestic Patent References:
| JP8099103A | ||||
| JP7024512A | ||||
| JP4351213A | ||||
| JP7088519A |
Attorney, Agent or Firm:
Kenji Yoshitake
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki