JPS55139106A - Controlling method for thickness of sheet - Google Patents
Controlling method for thickness of sheetInfo
- Publication number
- JPS55139106A JPS55139106A JP4525879A JP4525879A JPS55139106A JP S55139106 A JPS55139106 A JP S55139106A JP 4525879 A JP4525879 A JP 4525879A JP 4525879 A JP4525879 A JP 4525879A JP S55139106 A JPS55139106 A JP S55139106A
- Authority
- JP
- Japan
- Prior art keywords
- thickness
- correction
- value
- rolling
- sheet
- 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 thickness of sheet to the aimed value with high accuracy, at manufacturing the steel sheet by the low speed rolling method, by widening the rolling rolls' gap as much as the amount corresponding to the deviation of the actual thickness from the aimed thickness, when restoring the normal rolling mode after correcting the tip thickness of rolled material through the thickness correction mechanism.
CONSTITUTION: The steel material 12 to be rolled is bitten into the rolling mill 11, and the thickness correction is started; hereupon, the value of correction is set by the digital setter 13. The rolling load at this point is detected by the load cell 14 and is memorized by the memory device 15. The rolling load thereafter is operated as the deviation from the set value by the addition amplifier 16, and the value of correction of the roll gap is determined through the factor operator 17. In this case, when the thickness correction at feeding the sheet is finished and the roll gap is just to be widened, the thickness deviation signal of the thickness measuring device 18 for measuring thickness of steel material 12 after being rolled is read and is produced to the addition amplifier 20 as the roll gap correction set value through the controller 19: hereby, the cylinder ram 21 is shifted to correct the roll gap. This operation is repeated to adjust the thickness of steel sheet 12 to the aimed value.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4525879A JPS55139106A (en) | 1979-04-16 | 1979-04-16 | Controlling method for thickness of sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4525879A JPS55139106A (en) | 1979-04-16 | 1979-04-16 | Controlling method for thickness of sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55139106A true JPS55139106A (en) | 1980-10-30 |
| JPS6251686B2 JPS6251686B2 (en) | 1987-10-31 |
Family
ID=12714252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4525879A Granted JPS55139106A (en) | 1979-04-16 | 1979-04-16 | Controlling method for thickness of sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55139106A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58122111A (en) * | 1982-01-18 | 1983-07-20 | Toshiba Corp | Method and device for controlling rolling mill |
-
1979
- 1979-04-16 JP JP4525879A patent/JPS55139106A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58122111A (en) * | 1982-01-18 | 1983-07-20 | Toshiba Corp | Method and device for controlling rolling mill |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6251686B2 (en) | 1987-10-31 |
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