JPS5568115A - Controller for rolling work of multistage continuous rolling mill - Google Patents
Controller for rolling work of multistage continuous rolling millInfo
- Publication number
- JPS5568115A JPS5568115A JP14168578A JP14168578A JPS5568115A JP S5568115 A JPS5568115 A JP S5568115A JP 14168578 A JP14168578 A JP 14168578A JP 14168578 A JP14168578 A JP 14168578A JP S5568115 A JPS5568115 A JP S5568115A
- Authority
- JP
- Japan
- Prior art keywords
- thickness
- controller
- output
- inputted
- undergoes
- 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.)
- Granted
Links
Landscapes
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE: To improve the thickness control accuracy and the yield, by arithmetically processing a part of output of the precision thickness control system, and by installing the monitor means for feedback to the rough thickness control system.
CONSTITUTION: The product thickness deviation ΔhN detected by the gaugemeter 26 is inputted to the precision thickness controller 30, and undergoes the gain correction with the rolling speed; after that, the output is branched. One branch undergoes the PI control operation as well as the conventional method, and adjusts the rotational speed of the work roll 18a of the final rolling stand through the speed controller 28. Another branch is inputted to the monitor circuit 50, and undergoes the PI control operation with the operational constant different from the precision thickness controller 30, and is inputted to the rough thickness controller 36. The thickness deviation Δh2 on the exit side of the second rolling stand 16 is also inputted to this controller 36. When the monitor circuit 50 produces no output, the zero control is carried out so as to make zero the thickness deviation detected by the gaugemeter 32. When the monitor circuit 50 is producing the output, an offset corresponding to this output causes in the thickness deviation on the exit side of the second rolling stand, however, this offset is finally dissolved in the rough control system 24.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14168578A JPS5568115A (en) | 1978-11-15 | 1978-11-15 | Controller for rolling work of multistage continuous rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14168578A JPS5568115A (en) | 1978-11-15 | 1978-11-15 | Controller for rolling work of multistage continuous rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5568115A true JPS5568115A (en) | 1980-05-22 |
| JPS6120367B2 JPS6120367B2 (en) | 1986-05-22 |
Family
ID=15297822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14168578A Granted JPS5568115A (en) | 1978-11-15 | 1978-11-15 | Controller for rolling work of multistage continuous rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5568115A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60238027A (en) * | 1984-05-10 | 1985-11-26 | Kawasaki Steel Corp | Plate thickness control method in hot finish rolling |
-
1978
- 1978-11-15 JP JP14168578A patent/JPS5568115A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60238027A (en) * | 1984-05-10 | 1985-11-26 | Kawasaki Steel Corp | Plate thickness control method in hot finish rolling |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6120367B2 (en) | 1986-05-22 |
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