JPS5527421A - Rolling method - Google Patents
Rolling methodInfo
- Publication number
- JPS5527421A JPS5527421A JP9906878A JP9906878A JPS5527421A JP S5527421 A JPS5527421 A JP S5527421A JP 9906878 A JP9906878 A JP 9906878A JP 9906878 A JP9906878 A JP 9906878A JP S5527421 A JPS5527421 A JP S5527421A
- Authority
- JP
- Japan
- Prior art keywords
- strip
- plate thickness
- rolling
- leading
- stand
- 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
- B21B37/18—Automatic gauge control
- B21B37/20—Automatic gauge control in tandem mills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
PURPOSE:To eliminate the off gauge at the leading and trailing ends at the cold rolling and make biting easy by rolling the leading or trailing end of a strip thiner than the normal plate thickness portion in the central part in the longitudinal direction. CONSTITUTION:With a hot strip finishing plant 9, the pass of the leading end of the material is detected with a rolling load detector 7 and the screw down device 8 of the F6 stand is moved upward according to the preset time relation, whereby the roll gap is increased. As a result, the plate thickness at the leading end of the strip becomes subsequently thicker. In the central part in the longitudinal direction, rolling of a constant plate thickness is accomplished. When the trailing end of the strip passes the F1 stand, this is detected with a rolling load detector 6 to lower the screw-down device 8 of the F6 stand and decrease the roll gap. The plate thickness at the trailing end of the strip will then become gradually thinner. This strip coil makes biting to cold rolling rolls good and enables the strip of the plate thickness uniform in the lengthwise direction to be obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9906878A JPS5527421A (en) | 1978-08-16 | 1978-08-16 | Rolling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9906878A JPS5527421A (en) | 1978-08-16 | 1978-08-16 | Rolling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5527421A true JPS5527421A (en) | 1980-02-27 |
Family
ID=14237498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9906878A Pending JPS5527421A (en) | 1978-08-16 | 1978-08-16 | Rolling method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5527421A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008264807A (en) * | 2007-04-17 | 2008-11-06 | Nakayama Steel Works Ltd | Rolling method |
| CN112337970A (en) * | 2020-10-22 | 2021-02-09 | 河南中孚高精铝材有限公司 | Double-frame cold rolling mill bottoming thick head control method |
-
1978
- 1978-08-16 JP JP9906878A patent/JPS5527421A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008264807A (en) * | 2007-04-17 | 2008-11-06 | Nakayama Steel Works Ltd | Rolling method |
| CN112337970A (en) * | 2020-10-22 | 2021-02-09 | 河南中孚高精铝材有限公司 | Double-frame cold rolling mill bottoming thick head control method |
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