JPS5465146A - Controlling method for coiler of continuous hot rolling line - Google Patents
Controlling method for coiler of continuous hot rolling lineInfo
- Publication number
- JPS5465146A JPS5465146A JP13080377A JP13080377A JPS5465146A JP S5465146 A JPS5465146 A JP S5465146A JP 13080377 A JP13080377 A JP 13080377A JP 13080377 A JP13080377 A JP 13080377A JP S5465146 A JPS5465146 A JP S5465146A
- Authority
- JP
- Japan
- Prior art keywords
- strip
- speed
- sag
- pinch roll
- controller
- 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
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE: To reduce the impulsive tension generated while coiling work, by reducing the lealing speed through forecasting the time for eliminating the sag of strip, depending on the looseness of strip and the coiling speed between the finishing mill and the pinch roll.
CONSTITUTION: The pulse proportional to revolutional frequency of the work roll 91 is inputted from the pulse oscillator 92 into the computer-controller 93. The computer-controller 93 operates the length of rolled strip 6 from this pulse and the outer diameter of the work roll 91. The existence of the strip 6 is detected by the strip detectors 21, 22, and their signals are sent to the controller 93 which operats the length of strip 6 which is being rolled between two detectors 21, 22. From these values, the sag of strip 6 between the rolling mill 1 and the pinch roll 4 is forecast by computing the time for eliminating this sag from the sag and speed of pinch roll. Depending on this value, the speed instruction value 95 for the pinch roll 4 is converted to the instruction value of leading speed of about one-third of the conventional value, and then, the coiling is carried out.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13080377A JPS5465146A (en) | 1977-11-02 | 1977-11-02 | Controlling method for coiler of continuous hot rolling line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13080377A JPS5465146A (en) | 1977-11-02 | 1977-11-02 | Controlling method for coiler of continuous hot rolling line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5465146A true JPS5465146A (en) | 1979-05-25 |
Family
ID=15043067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13080377A Pending JPS5465146A (en) | 1977-11-02 | 1977-11-02 | Controlling method for coiler of continuous hot rolling line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5465146A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60221124A (en) * | 1984-04-17 | 1985-11-05 | Kawasaki Steel Corp | Method of preventing necking of steel strip in hot rolling |
| CN110665972A (en) * | 2019-11-09 | 2020-01-10 | 天津友联盛业科技集团有限公司 | Novel automatic belted steel draws first equipment |
-
1977
- 1977-11-02 JP JP13080377A patent/JPS5465146A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60221124A (en) * | 1984-04-17 | 1985-11-05 | Kawasaki Steel Corp | Method of preventing necking of steel strip in hot rolling |
| CN110665972A (en) * | 2019-11-09 | 2020-01-10 | 天津友联盛业科技集团有限公司 | Novel automatic belted steel draws first equipment |
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