JPS5711711A - Method and apparatus for controlling sheet crown - Google Patents
Method and apparatus for controlling sheet crownInfo
- Publication number
- JPS5711711A JPS5711711A JP8605980A JP8605980A JPS5711711A JP S5711711 A JPS5711711 A JP S5711711A JP 8605980 A JP8605980 A JP 8605980A JP 8605980 A JP8605980 A JP 8605980A JP S5711711 A JPS5711711 A JP S5711711A
- Authority
- JP
- Japan
- Prior art keywords
- breadth
- sheet
- speed ratio
- differential speed
- crown
- 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
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE: To make the operation of upper limit of the differential speed ratio for every different sheet breadth needless, at controlling the sheet crown while practicing a rolling work with a differential speed ratio, by parallelly or separately practicing the differential speed ratio control and the work roll bending control correspondingly to the size of sheet breadth.
CONSTITUTION: A rolled sheet's breadth setter 11 inputs a maximum sheet breadth to be limited by the mechanical strength at a maximum differential speed ratio in consideration of thickness, material quality, temperature, etc., of the rolled sheet, to an arithmetic unit 10; a breadth detecting signal of a sheet breadth detector 12, and a sheet crown detecting signal 13, are also inputted to the arithmetic unit 10; then, the arithmetic unit 10, according to these input signals, controls the sheet crown through speed controllers 6, 7 and a work roll bending controller 9. When the breadth signal sent from the breadth detector 12 is smaller than a set point, all controllers 6, 7, 9 are actuated to work, whereas, when the breadth signal is larger than the set point, only the work roll bending controller 9 is actuated. By the present method, the operation of upper limit of the differential speed ratio for every different sheet breadth is needless, so that the control of the sheet crown is practical for a range of differential speed ratio from 1 to maximum.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8605980A JPS5711711A (en) | 1980-06-25 | 1980-06-25 | Method and apparatus for controlling sheet crown |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8605980A JPS5711711A (en) | 1980-06-25 | 1980-06-25 | Method and apparatus for controlling sheet crown |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5711711A true JPS5711711A (en) | 1982-01-21 |
Family
ID=13876118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8605980A Pending JPS5711711A (en) | 1980-06-25 | 1980-06-25 | Method and apparatus for controlling sheet crown |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5711711A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60193281U (en) * | 1984-06-04 | 1985-12-23 | 日本車輌製造株式会社 | Oscillating sorter |
| JPS6211582A (en) * | 1985-07-09 | 1987-01-20 | セイレイ工業株式会社 | Cereal grain selector |
-
1980
- 1980-06-25 JP JP8605980A patent/JPS5711711A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60193281U (en) * | 1984-06-04 | 1985-12-23 | 日本車輌製造株式会社 | Oscillating sorter |
| JPS6211582A (en) * | 1985-07-09 | 1987-01-20 | セイレイ工業株式会社 | Cereal grain selector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5666315A (en) | Controlling method for sheet thickness in strip mill | |
| JPS5711711A (en) | Method and apparatus for controlling sheet crown | |
| JPS57195523A (en) | Controlling method and apparatus for roll bending in rolling mill | |
| JPS5561311A (en) | Method and apparatus for controlling sheet thickness | |
| JPS55100852A (en) | Direct rolling type continuous casting method | |
| JPS55120409A (en) | Controlling method for shape in six-stage rolling mill | |
| JPS5686616A (en) | Method and apparatus for automatic thickness control in rolling mill | |
| JPS5542167A (en) | Method and apparatus for shape controlling of reversible rolling mill | |
| JPS5564918A (en) | Method and apparatus for automatic thickness control | |
| JPS54133463A (en) | Method and apparatus for shape control in differential- speed rolling | |
| JPS57171510A (en) | Shape controlling device | |
| JPS5680311A (en) | Controlling method for rolling mill | |
| JPS54117357A (en) | Metod and apparatus for controlling sheet crown and shape in continuous rolling mill | |
| JPS5747517A (en) | Method and apparatus for controlling rolling speed of mandrel mill | |
| JPS5577922A (en) | Feedforward controlling method for thickness of rolled material | |
| JPS5561310A (en) | Method and apparatus for controlling sheet thickness | |
| JPS5426266A (en) | Automatic sheet gauge controlling method for rolling mill | |
| JPS56114511A (en) | Controlling method for rolling work changeable thickness of traveling strip to be hot-rolled | |
| JPS5577918A (en) | Method and apparatus for controlling sheet crown including differential speed mill | |
| JPS5550910A (en) | Tension controller for rolling mill | |
| JPS55109509A (en) | Controlling method for double chock bender in continuous rolling mill | |
| JPS5568111A (en) | Controlling method for rolled shape after broadside rolling work for plate | |
| JPS5592216A (en) | Method and apparatus for controlling plate crown | |
| JPS5479144A (en) | Controller for continuous rolling | |
| JPS5450455A (en) | Elongation controller for rolling mill |