JPS5519409A - Plate thickness and plate breadth control method in rolling mill - Google Patents
Plate thickness and plate breadth control method in rolling millInfo
- Publication number
- JPS5519409A JPS5519409A JP9090378A JP9090378A JPS5519409A JP S5519409 A JPS5519409 A JP S5519409A JP 9090378 A JP9090378 A JP 9090378A JP 9090378 A JP9090378 A JP 9090378A JP S5519409 A JPS5519409 A JP S5519409A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- rolling mill
- plate thickness
- breadth
- disturbances
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE: To increase the processing precision, by detecting the disturbance of the material being rolled at the upstream side of the stand to control the tandem rolling mill, and controlling so as to eliminate effects of disturbance on the exit side.
CONSTITUTION: A work roll driving device 12 and a screw-down device 21 are controlled so that the deviation between the target value t°n-1 and detected value tn-1 by detector 6 of tension of the material being rolled 1 between adjacent stands n-1 and n of a rolling mill and the deviation between the target value y°n and detected value yn by position detector 16 may be respectively reduced to zero quickly. Variations of these four values from each reference value are supposed to be tn-1, Δt°n-1, Δyn, Δy°n, and variations of plate thickness, plate breadth and plate temperature at the exit side of stand n to be Δhn, Δwn, ΔTn, and when disturbances Δhn-2, Δwn-2, ΔTn-2 are measured, this system is expressed by formula 3. When the transmission function matrix F(S) is selected so that G(S)F(S)+Gd(S) may be zero matrix, the effects of disturbances on external forces Δhn, Δwn may be completely eliminated. In addition, mutual interference between plate thickness and plate breadth does not occur.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9090378A JPS5519409A (en) | 1978-07-27 | 1978-07-27 | Plate thickness and plate breadth control method in rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9090378A JPS5519409A (en) | 1978-07-27 | 1978-07-27 | Plate thickness and plate breadth control method in rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5519409A true JPS5519409A (en) | 1980-02-12 |
Family
ID=14011353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9090378A Pending JPS5519409A (en) | 1978-07-27 | 1978-07-27 | Plate thickness and plate breadth control method in rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5519409A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586717A (en) * | 1981-07-03 | 1983-01-14 | Kawasaki Steel Corp | Method and device for feed forward control of thickness and width of band-shaped rolled steel |
| JPS58199614A (en) * | 1982-05-18 | 1983-11-21 | Kobe Steel Ltd | Controlling method of sheet thickness and width in hot strip mill |
-
1978
- 1978-07-27 JP JP9090378A patent/JPS5519409A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586717A (en) * | 1981-07-03 | 1983-01-14 | Kawasaki Steel Corp | Method and device for feed forward control of thickness and width of band-shaped rolled steel |
| JPH0217246B2 (en) * | 1981-07-03 | 1990-04-19 | Kawasaki Steel Co | |
| JPS58199614A (en) * | 1982-05-18 | 1983-11-21 | Kobe Steel Ltd | Controlling method of sheet thickness and width in hot strip mill |
| JPH0237245B2 (en) * | 1982-05-18 | 1990-08-23 | Kobe Steel Ltd |
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