JPS55149711A - Method and apparatus for controlling shape of rolled sheet - Google Patents
Method and apparatus for controlling shape of rolled sheetInfo
- Publication number
- JPS55149711A JPS55149711A JP5736379A JP5736379A JPS55149711A JP S55149711 A JPS55149711 A JP S55149711A JP 5736379 A JP5736379 A JP 5736379A JP 5736379 A JP5736379 A JP 5736379A JP S55149711 A JPS55149711 A JP S55149711A
- Authority
- JP
- Japan
- Prior art keywords
- oil pressure
- discriminator
- shape defect
- rolled sheet
- hydraulic piston
- 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
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
Abstract
PURPOSE:To correct both of simple shape defect and complicated shape defect of the rolled sheet, by bending the roll in the direction to increase the deflection of work rolls at the upstream pass, and by similarly processing at the final pass, when a composite wave to be the shape defect generates in the rolled sheet. CONSTITUTION:When the sheet 3 is to be rolled by the rolling mills I-V, if the discriminator 7 discriminates shaped defects A and B of the rolled sheet 3 by the shape meter 6, the oil pressure of the hydraulic piston for bending the roll is corrected through the oil pressure arithmetic unit 9 at the rolling mill V of the final stage. On the other hand, if the discriminator 7 judges that the shape defect other than above stated A and B is generating, the discriminator 7 gives a command to lower the oil pressure of the hydraulic piston of respective rolling mills I-IV against the shape defect C to be discrminated by the discriminator 8. That is, the command for setting the oil pressure of the oil pressure arithmetic unit 10 is given in the direction to increase the deflection of work rolls of rolling mills I-IV, and at the same time, another command is also given to lower the oil pressure of the hydraulic piston of the rolling mill V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5736379A JPS55149711A (en) | 1979-05-10 | 1979-05-10 | Method and apparatus for controlling shape of rolled sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5736379A JPS55149711A (en) | 1979-05-10 | 1979-05-10 | Method and apparatus for controlling shape of rolled sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55149711A true JPS55149711A (en) | 1980-11-21 |
Family
ID=13053488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5736379A Pending JPS55149711A (en) | 1979-05-10 | 1979-05-10 | Method and apparatus for controlling shape of rolled sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55149711A (en) |
-
1979
- 1979-05-10 JP JP5736379A patent/JPS55149711A/en active Pending
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