JPS5645205A - Controller for thickness of hot rolled sheet - Google Patents
Controller for thickness of hot rolled sheetInfo
- Publication number
- JPS5645205A JPS5645205A JP11951179A JP11951179A JPS5645205A JP S5645205 A JPS5645205 A JP S5645205A JP 11951179 A JP11951179 A JP 11951179A JP 11951179 A JP11951179 A JP 11951179A JP S5645205 A JPS5645205 A JP S5645205A
- Authority
- JP
- Japan
- Prior art keywords
- looper
- correction value
- inputted
- rolling roll
- circumferential 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.)
- Granted
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
- B21B37/48—Tension control; Compression control
- B21B37/50—Tension control; Compression control by looper control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE:To give the desired tension to the rolled mateial without largely changing the working angle of the looper, by detecting the thickness deviation of the rolled sheet at the down-stream of the rolling roll, and by computing the circumferential speed of the upstream rolling roll, and the correction value for the driving torque for the looper. CONSTITUTION:The thickness deviation DELTAh of the hot rolled material 1 is detected by the detector 4 installed in the rolling roll 2-4 on the down-sream side. This deviation DELTAh is inputted to the arithmetic unit 5 which then operates the correction value DELTAv' for the circumferential speed of the upstream rolling load 2-2. This Dv' is inputted to the arithmetic unit 6 which operates the correction value DELTAv of the roll's circumfernetial speed and the correction value DELTAq for the looper torque. The correction value DELTAv is inputted to the driver 7 of the rolling roll 2-2 whose circumferential speed is then corrected. The looper torque correction value DELTAq is inputted to the driver 8 of the looper 3 whose driving torque is then corrected. By the present control, the working angle of the looper 3 is held constant, and the stability of the speet pass can be improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11951179A JPS5645205A (en) | 1979-09-17 | 1979-09-17 | Controller for thickness of hot rolled sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11951179A JPS5645205A (en) | 1979-09-17 | 1979-09-17 | Controller for thickness of hot rolled sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5645205A true JPS5645205A (en) | 1981-04-24 |
| JPS6120369B2 JPS6120369B2 (en) | 1986-05-22 |
Family
ID=14763066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11951179A Granted JPS5645205A (en) | 1979-09-17 | 1979-09-17 | Controller for thickness of hot rolled sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5645205A (en) |
-
1979
- 1979-09-17 JP JP11951179A patent/JPS5645205A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6120369B2 (en) | 1986-05-22 |
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