JPS5530331A - Thickness shape controlling method of rolling material and apparatus thereof - Google Patents
Thickness shape controlling method of rolling material and apparatus thereofInfo
- Publication number
- JPS5530331A JPS5530331A JP10246778A JP10246778A JPS5530331A JP S5530331 A JPS5530331 A JP S5530331A JP 10246778 A JP10246778 A JP 10246778A JP 10246778 A JP10246778 A JP 10246778A JP S5530331 A JPS5530331 A JP S5530331A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- value
- lower rolls
- peripheral speed
- set value
- 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
- 238000005096 rolling process Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 230000002093 peripheral effect Effects 0.000 abstract 3
- 238000001514 detection method Methods 0.000 abstract 2
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
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
- B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE:To hold screw-down pressure constant and obtain products of superior quality by detecting the change in the screw-down pressure by a load cell and correcting the peripheral speed ratio of upper and lower rolls based on the compared value of this detection value and the screw-down set value. CONSTITUTION:A rolling material 4 un-coiled from an un-coiler 12 passes between upper and lower rolls 8, 9 and is thereby rolled, after which it is taken up by a recoiler 5. The screw-down presure is made constant and the exit side plate thickness is controlled by detecting the change in the screw-down pressure during this working with a load cell 22, comparing this detection value and the screw-down set value in a subtractor 20, sending the deviation value thereof to an adder 15, and adding the deviation value from the foregoing subtractor 20 to the peripheral speed set value of the upper and lower rolls with said adder 15 thereby performing correction of the peripheral speed ratio of the upper and lower rolls 8, 9. This constitution enables plate shapes such as edge drop, plate crown, etc. to be bettered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10246778A JPS5530331A (en) | 1978-08-23 | 1978-08-23 | Thickness shape controlling method of rolling material and apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10246778A JPS5530331A (en) | 1978-08-23 | 1978-08-23 | Thickness shape controlling method of rolling material and apparatus thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5530331A true JPS5530331A (en) | 1980-03-04 |
Family
ID=14328251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10246778A Pending JPS5530331A (en) | 1978-08-23 | 1978-08-23 | Thickness shape controlling method of rolling material and apparatus thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5530331A (en) |
-
1978
- 1978-08-23 JP JP10246778A patent/JPS5530331A/en active Pending
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