JPS5722811A - Method for automatic control of plate thickness of multistand rolling mill - Google Patents
Method for automatic control of plate thickness of multistand rolling millInfo
- Publication number
- JPS5722811A JPS5722811A JP9568180A JP9568180A JPS5722811A JP S5722811 A JPS5722811 A JP S5722811A JP 9568180 A JP9568180 A JP 9568180A JP 9568180 A JP9568180 A JP 9568180A JP S5722811 A JPS5722811 A JP S5722811A
- Authority
- JP
- Japan
- Prior art keywords
- plate thickness
- stand
- plastic
- coefft
- stands
- 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 accuracy of controlling by performing feed forward plate thickness control of stands based on the plastic coeffts. operated from the gap and load change rates of the time when roll gaps are changed.
CONSTITUTION: The plate thickness at the point A existing in a thickness gage 10 on the outlet side of a No.1 stand is measured, and when the point A arrives at a No.2 stand, the controlled variable of the roll gap of the No.2 stand is calculated by an operator 9 based on the plastic coefft. having beforehand been stored, thereby performing feed forward plate thickness control. At the same instant of the above- mentioned control, the rolling load of the No.2 stand is detected with a load detector 21, and is read into the operator 9. Next, an actual plastic coefft. is obtained from the rate of change in the rolling load cuased on account of a change in the roll gap of the No.2 stand. Thence, the gain of the feed forward plate thickness control is corrected by this actual plastic coefft. and the roll gaps and speeds of the stands are so controlled as to maintain the target plate thicknesses and mass flows of the No.3 and subsequent stands.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9568180A JPS5722811A (en) | 1980-07-15 | 1980-07-15 | Method for automatic control of plate thickness of multistand rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9568180A JPS5722811A (en) | 1980-07-15 | 1980-07-15 | Method for automatic control of plate thickness of multistand rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5722811A true JPS5722811A (en) | 1982-02-05 |
Family
ID=14144235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9568180A Pending JPS5722811A (en) | 1980-07-15 | 1980-07-15 | Method for automatic control of plate thickness of multistand rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5722811A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57146414A (en) * | 1981-03-02 | 1982-09-09 | Kobe Steel Ltd | Controlling method of sheet thickness in cold tandem mill |
| KR20020017624A (en) * | 2000-08-31 | 2002-03-07 | 이구택 | Thickness control method for top and bottom of plate |
-
1980
- 1980-07-15 JP JP9568180A patent/JPS5722811A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57146414A (en) * | 1981-03-02 | 1982-09-09 | Kobe Steel Ltd | Controlling method of sheet thickness in cold tandem mill |
| JPS6129806B2 (en) * | 1981-03-02 | 1986-07-09 | Kobe Steel Ltd | |
| KR20020017624A (en) * | 2000-08-31 | 2002-03-07 | 이구택 | Thickness control method for top and bottom of plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5691918A (en) | Load redistribution controller for continuous rolling mill | |
| JPS53112253A (en) | Controlling method for interstand tension in continuous rolling mill | |
| JPS5666315A (en) | Controlling method for sheet thickness in strip mill | |
| JPS5722811A (en) | Method for automatic control of plate thickness of multistand rolling mill | |
| JPS5722812A (en) | Method for automatic control of plate thickness of multistand rolling mill | |
| JPS55136507A (en) | Automatic controlling method for sheet thickness by gaugemeter type | |
| JPS5568114A (en) | Controller for rolling work of multistage continuous rolling mill | |
| ES436096A1 (en) | Rolling mill gauge control | |
| JPS57102265A (en) | Automatic controller for paint film thickness in producing plant for painted steel strip | |
| JPS5680311A (en) | Controlling method for rolling mill | |
| JPS5687456A (en) | Controller for amount of paint in coating steel plate | |
| JPS56141905A (en) | Controlling method for speed in continuous rolling mill | |
| JPS55122616A (en) | Automatic plate breadth control method in cold roll tandem mill | |
| JPS55158866A (en) | Mold level control method | |
| JPS57103725A (en) | Thickness controlling method for rolling mill | |
| JPS56117814A (en) | Method and apparatus for controlling breadth of sheet in hot rolling mill | |
| JPS5533814A (en) | Rolling control method of continuous rolling mill | |
| JPS5592219A (en) | Plate width control unit of rolled material | |
| JPS5750207A (en) | Controlling method for timing control in controlling roll bending | |
| JPS56114523A (en) | Speed control method for continuous rolling mill | |
| JPS55158818A (en) | Controlling method for sheet thickness in rolling mill | |
| JPS56117811A (en) | Controlling method for rolling work changeable thickness of traveling sheet | |
| JPS54158361A (en) | Controlling method for continuous rolling mill | |
| JPS56154210A (en) | Controlling method for rolling reduction of rolling mill | |
| JPS56144813A (en) | Controlling method for thickness of tail end of strip |