JPS55109511A - Controlling method for sheet breadth by vertical rolling mill - Google Patents
Controlling method for sheet breadth by vertical rolling millInfo
- Publication number
- JPS55109511A JPS55109511A JP1680079A JP1680079A JPS55109511A JP S55109511 A JPS55109511 A JP S55109511A JP 1680079 A JP1680079 A JP 1680079A JP 1680079 A JP1680079 A JP 1680079A JP S55109511 A JPS55109511 A JP S55109511A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- roll gap
- rolling
- rolling speed
- limit
- 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
- B21B37/22—Lateral spread control; Width control, e.g. by edge rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE: To make possible the high accurate breadth control, by lowering the rolling speed than the ordinary fixed rolling speed, when the computed roll gap adjustment is impossible because of the adjustable limit.
CONSTITUTION: The computed roll gap adjustment is inputted from the roll gap control circuit 6 to the rolling speed arithmetic circuit 8 which then produces the ordinary rolling speed when the value of computed roll gap adjusting speed for the vertical rolling mill is smaller than the speed limit sent from the speed limit setter 9. On the contrary, if the computed roll gap adjusting speed is larger than the speed limit, the rolling speed is determined according to the following formula, on purpose to make the computed roll gap adjusting speed to be smaller than the speed limit, and also, on purpose to minimize the slow-down of the rolling speed. The rolling speed=(limit of roll gap adjusting speed)×(ordinary rolling speed)/(value of computed roll gap adjusting speed). Then, the rolling speed changing unit 10 changes the rolling speed of the vertical rolling mill E4 according to the output signal produced from the rolling speed arithmetic circuit 8.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1680079A JPS55109511A (en) | 1979-02-15 | 1979-02-15 | Controlling method for sheet breadth by vertical rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1680079A JPS55109511A (en) | 1979-02-15 | 1979-02-15 | Controlling method for sheet breadth by vertical rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55109511A true JPS55109511A (en) | 1980-08-23 |
Family
ID=11926221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1680079A Pending JPS55109511A (en) | 1979-02-15 | 1979-02-15 | Controlling method for sheet breadth by vertical rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55109511A (en) |
-
1979
- 1979-02-15 JP JP1680079A patent/JPS55109511A/en active Pending
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