JPS6440110A - Method for automatic control of sheet thickness in rolling mill - Google Patents
Method for automatic control of sheet thickness in rolling millInfo
- Publication number
- JPS6440110A JPS6440110A JP62195256A JP19525687A JPS6440110A JP S6440110 A JPS6440110 A JP S6440110A JP 62195256 A JP62195256 A JP 62195256A JP 19525687 A JP19525687 A JP 19525687A JP S6440110 A JPS6440110 A JP S6440110A
- Authority
- JP
- Japan
- Prior art keywords
- control
- sheet thickness
- accordance
- inlet side
- side sheet
- 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 improve the product yield and to stabilize the control by previously setting plural control gain values being in accordance with stages, deciding an inlet side sheet thickness deviation, and selectively use of an optimum control gain value based on the decision result. CONSTITUTION:The inside of a control computing element 12 is provided with a 1st decider 18 indicating a range being in accordance with a size of inlet side sheet thickness deviations and plural memories 16a-16c for control gains being in accordance with stages. At the time of detecting a sheet thickness deviation DELTAH of a rolled stock 1 by an inlet side sheet thickness gage 5, the decider 18 selects an optimum control gain value from the memories 16a-16c in accordance with the deviation DELTAH and performs feedforward control through an output timing circuit 8 and a draft control circuit 9. The control is stabilized and the control accuracy for sheet thickness is improved because an optimum control gain value is used in accordance with an inlet side sheet thickness deviation. Therefore, the product yield is improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62195256A JPS6440110A (en) | 1987-08-06 | 1987-08-06 | Method for automatic control of sheet thickness in rolling mill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62195256A JPS6440110A (en) | 1987-08-06 | 1987-08-06 | Method for automatic control of sheet thickness in rolling mill |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6440110A true JPS6440110A (en) | 1989-02-10 |
Family
ID=16338109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62195256A Pending JPS6440110A (en) | 1987-08-06 | 1987-08-06 | Method for automatic control of sheet thickness in rolling mill |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6440110A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5054302A (en) * | 1989-04-07 | 1991-10-08 | Kawasaki Steel Corporation | Hardness compensated thickness control method for wet skin-pass rolled sheet |
CN102363159A (en) * | 2011-10-26 | 2012-02-29 | 北京科技大学 | Thickness control method for single precision cold-rolled sheet thickness measuring system |
-
1987
- 1987-08-06 JP JP62195256A patent/JPS6440110A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5054302A (en) * | 1989-04-07 | 1991-10-08 | Kawasaki Steel Corporation | Hardness compensated thickness control method for wet skin-pass rolled sheet |
CN102363159A (en) * | 2011-10-26 | 2012-02-29 | 北京科技大学 | Thickness control method for single precision cold-rolled sheet thickness measuring system |
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