JPS5744409A - Sheet breadth controller for hot rolling mill - Google Patents
Sheet breadth controller for hot rolling millInfo
- Publication number
- JPS5744409A JPS5744409A JP55121354A JP12135480A JPS5744409A JP S5744409 A JPS5744409 A JP S5744409A JP 55121354 A JP55121354 A JP 55121354A JP 12135480 A JP12135480 A JP 12135480A JP S5744409 A JPS5744409 A JP S5744409A
- Authority
- JP
- Japan
- Prior art keywords
- breadth
- deviation
- controller
- looper
- outputs
- 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
Landscapes
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE: To control the sheet breadth while the looper angle and the run-out side sheet thickness are held constant, and to prevent the mutual interference, by simultaneously operating the looper tension, the roll's circumferential speed, and the reducing position, according to the deviation of actual sheet breadth from a preset sheet breadth.
CONSTITUTION: A rolled material 1 to be rolled by rolls (2-1)W(2-4), is given a tension controlled to a prescribed value σ at an looper angle θ of a looper 3. The detector 7, 8 detect the breadth deviation and thickness deviation, and output the deviation signals ΔB, ΔW. A thickness controller 9 outputs a screw position correcting signal ΔS*η against the thickness deviation Δη. A breadth controller 10 outputs a tension correcting signal Δσ* and a screw position correcting signal ΔS*σ according to the breadth deviation ΔW. Hereby, a screw's reducing position controller 6 corrects the screw positin according to the sum of said outputs ΔS*η and ΔS*σ. A correcting value Δσ* for the interstand tension is operated by an arithmetic device 11 which then outputs a roll speed correcting signal ΔV and a looper torque correcting signal Δq.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55121354A JPS5744409A (en) | 1980-09-01 | 1980-09-01 | Sheet breadth controller for hot rolling mill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55121354A JPS5744409A (en) | 1980-09-01 | 1980-09-01 | Sheet breadth controller for hot rolling mill |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5744409A true JPS5744409A (en) | 1982-03-12 |
JPH0144403B2 JPH0144403B2 (en) | 1989-09-27 |
Family
ID=14809192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55121354A Granted JPS5744409A (en) | 1980-09-01 | 1980-09-01 | Sheet breadth controller for hot rolling mill |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5744409A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58199614A (en) * | 1982-05-18 | 1983-11-21 | Kobe Steel Ltd | Controlling method of sheet thickness and width in hot strip mill |
JPS6368207A (en) * | 1986-09-08 | 1988-03-28 | Kobe Steel Ltd | Sheet width control method for tandem rolling |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS555171A (en) * | 1978-06-27 | 1980-01-16 | Sumitomo Metal Ind Ltd | Plate width control method of rolling materials in continuous hot rolling equipment |
-
1980
- 1980-09-01 JP JP55121354A patent/JPS5744409A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS555171A (en) * | 1978-06-27 | 1980-01-16 | Sumitomo Metal Ind Ltd | Plate width control method of rolling materials in continuous hot rolling equipment |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58199614A (en) * | 1982-05-18 | 1983-11-21 | Kobe Steel Ltd | Controlling method of sheet thickness and width in hot strip mill |
JPH0237245B2 (en) * | 1982-05-18 | 1990-08-23 | Kobe Steel Ltd | |
JPS6368207A (en) * | 1986-09-08 | 1988-03-28 | Kobe Steel Ltd | Sheet width control method for tandem rolling |
JPH0585246B2 (en) * | 1986-09-08 | 1993-12-06 | Kobe Steel Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPH0144403B2 (en) | 1989-09-27 |
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