JPS5747516A - Controlling method for shape of thin sheet - Google Patents
Controlling method for shape of thin sheetInfo
- Publication number
- JPS5747516A JPS5747516A JP55123318A JP12331880A JPS5747516A JP S5747516 A JPS5747516 A JP S5747516A JP 55123318 A JP55123318 A JP 55123318A JP 12331880 A JP12331880 A JP 12331880A JP S5747516 A JPS5747516 A JP S5747516A
- Authority
- JP
- Japan
- Prior art keywords
- shape
- sheet
- breadth
- thin sheet
- deviation
- 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
Abstract
PURPOSE: To control the shape of a thin sheet with a computer of a small capacity, and to obtain a thin sheet with a good shape, by taking the effect of an operation applied to the shape correcting element as an influence factor in the direction of sheet breadth, in a thin sheet rolling mill provided with a shape detector and a shape correcting device.
CONSTITUTION: On the run-out side of a rolling mill, plural shape detectors are arranged along the sheet breadth. The influence of each shape correcting device exerted upon the shape of a thin sheet is obtained for every sheet breadth as an influence factor of each position in the direction of breadth exerted upon the variation of deviation of the elongation percentage. By using this influence factor, the deviation of elongation percentages at each position in the direction of breadth after correcting the sheet shape is predicted before correcting the sheet shape. The difference between a predicted deviation εi of elongation percentages at each position in the direction of sheet breadth and an aimed deviation ai of elongation percentages is evaluated with a shape evaluation function M. On the basis of the result of this evaluation for M=MAX(εi-ai), i=1Wn, the optimum controlling direction and amount of the shape correcting device are decided.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55123318A JPS5747516A (en) | 1980-09-05 | 1980-09-05 | Controlling method for shape of thin sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55123318A JPS5747516A (en) | 1980-09-05 | 1980-09-05 | Controlling method for shape of thin sheet |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5747516A true JPS5747516A (en) | 1982-03-18 |
JPH0112565B2 JPH0112565B2 (en) | 1989-03-01 |
Family
ID=14857579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55123318A Granted JPS5747516A (en) | 1980-09-05 | 1980-09-05 | Controlling method for shape of thin sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5747516A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59218206A (en) * | 1983-05-25 | 1984-12-08 | Nippon Kokan Kk <Nkk> | Shape controlling method in thin sheet rolling |
-
1980
- 1980-09-05 JP JP55123318A patent/JPS5747516A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59218206A (en) * | 1983-05-25 | 1984-12-08 | Nippon Kokan Kk <Nkk> | Shape controlling method in thin sheet rolling |
JPH0150485B2 (en) * | 1983-05-25 | 1989-10-30 | Nippon Kokan Kk |
Also Published As
Publication number | Publication date |
---|---|
JPH0112565B2 (en) | 1989-03-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5666315A (en) | Controlling method for sheet thickness in strip mill | |
JPS53112253A (en) | Controlling method for interstand tension in continuous rolling mill | |
JPS5747516A (en) | Controlling method for shape of thin sheet | |
JPS5542167A (en) | Method and apparatus for shape controlling of reversible rolling mill | |
JPS53108057A (en) | Method and apparatus for tension control in tandem rolling mill | |
JPS544856A (en) | Method and apparatus for controlling looper | |
JPS5564918A (en) | Method and apparatus for automatic thickness control | |
JPS5413446A (en) | Controlling method for sheet crown in rolling mill | |
JPS56139210A (en) | Controlling method for strip thickness in rolling mill | |
JPS54160547A (en) | Control of plate thickness and shape in continuous rolling mill | |
JPS5758909A (en) | Controller for rolled shape | |
JPS5650720A (en) | Tension roller staightener | |
JPS56134009A (en) | Controlling method for thickness | |
JPS5788903A (en) | Method for controlling l camber in skin pass mill | |
JPS5668519A (en) | Width control device of rolling mill | |
Ooi et al. | Advanced thickness control technology for tandem cold mill | |
JPS5636309A (en) | Controlling mehtod for tension | |
JPS5770018A (en) | Method for controlling thickness plate at passing through cold tandem mill | |
JPS53118260A (en) | Plate-thickness controlling method for rolling mill | |
JPS56111521A (en) | Controlling method for rolling work changeable thickness of strip while operation continues | |
JPS542963A (en) | Controlling method for sheet width in hot finishing mill | |
JPS53119767A (en) | Preventing apparatus for entering of rolled material of anomalous thickness | |
JPS53144450A (en) | Method of and apparatus for controlling timing of rolling mill | |
JPS5623310A (en) | Automatic controlling method of plate thickness | |
JPS5714411A (en) | Method and device for controlling crooked running of strip |