JPS5485165A - Method and apparatus for sheet-breadth-control - Google Patents
Method and apparatus for sheet-breadth-controlInfo
- Publication number
- JPS5485165A JPS5485165A JP15415977A JP15415977A JPS5485165A JP S5485165 A JPS5485165 A JP S5485165A JP 15415977 A JP15415977 A JP 15415977A JP 15415977 A JP15415977 A JP 15415977A JP S5485165 A JPS5485165 A JP S5485165A
- Authority
- JP
- Japan
- Prior art keywords
- tension
- sheet
- load
- rolling
- speed
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
- B21B37/22—Lateral spread control; Width control, e.g. by edge rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE:To hold constant the breadth of rolled sheet, in the hot contitnuous rolling mill, by installing the load detector on purpose to detect the change in the tensile strength or the yield stress of the sheet depending on the change in the load, and by correcting and controlling the tension so as to keep constant the ratio of this change in the tensile strength to the tension of the rolled sheet. CONSTITUTION:The sheet-speed-meter (tachometer) 11 for detecting the speed of the sheet and the rolling-load-detector 10 for detecting the rolling load, are installed in the first stand; and the arithmetic unit 12 for the tension is installed on purpose to operate the necessary correction for tension depending on the temperature, the necessary correction for tension depending on the rolling reduction, according to the signal from the rolling-load-detector 10, and to operate the nessaary correction for tension depending on the speed, according to the signal from the sheet-speed- meter 11; the sum of thus obtained necessary correction for the tension is inputted to the looper controller 13 as the necessary correction for the set point of the tension; the result of this operation by the looper controller 13 is given to the looper driver 14 as the necessary correction for the driving torque; hereby, the breadth of sheet is controlled to constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15415977A JPS5485165A (en) | 1977-12-20 | 1977-12-20 | Method and apparatus for sheet-breadth-control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15415977A JPS5485165A (en) | 1977-12-20 | 1977-12-20 | Method and apparatus for sheet-breadth-control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5485165A true JPS5485165A (en) | 1979-07-06 |
Family
ID=15578118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15415977A Pending JPS5485165A (en) | 1977-12-20 | 1977-12-20 | Method and apparatus for sheet-breadth-control |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5485165A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5150265A (en) * | 1974-10-28 | 1976-05-01 | Sumitomo Metal Ind |
-
1977
- 1977-12-20 JP JP15415977A patent/JPS5485165A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5150265A (en) * | 1974-10-28 | 1976-05-01 | Sumitomo Metal Ind |
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