JPS5586618A - Method and apparatus for controlling thickness - Google Patents
Method and apparatus for controlling thicknessInfo
- Publication number
- JPS5586618A JPS5586618A JP16212778A JP16212778A JPS5586618A JP S5586618 A JPS5586618 A JP S5586618A JP 16212778 A JP16212778 A JP 16212778A JP 16212778 A JP16212778 A JP 16212778A JP S5586618 A JPS5586618 A JP S5586618A
- Authority
- JP
- Japan
- Prior art keywords
- load
- deviation
- controller
- rolling
- moving distance
- 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
- B21B37/24—Automatic variation of thickness according to a predetermined programme
-
- 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
- B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE: To easily manufacture the tapered steel sheet with high shape accuracy, by adding the load deviation from outside to the reference rolling load correspondingly to the moving distance of the rolled material, on purpose to change the thickness along the longitude of the material, at controlling the gap of reducing rolls by detecting the load deviation from the reference rolling load.
CONSTITUTION: At the moment that the tip of rolled material 10 is bitten into the mill 12, the rolling load at that moment is detected by the detector 20 and is memorized as the reference load FL by the reference load memory unit 22 included in the controller 24. With the progress of the rolling work, the arithmetic unit 32 operates the load deviation ΔP at that moving distance from the output of the external setter 26, correspondingly to the moving distance of the rolled material 10 being measured by the measuring device 30; and this load deviation ΔP is inputted to the controller 24. This load deviation ΔP is added to the reference load FL to be the output of the memory unit 22 by the adder 34; the output of this adder 34 is taken as the new reference load to be used by the controller 24 for executing the successive control. According to this method, the rolled product possessing the thickness change corresponding to the longitudinal thickness change of the rolled product being set in the external setter 26 can be manufactured.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16212778A JPS5586618A (en) | 1978-12-25 | 1978-12-25 | Method and apparatus for controlling thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16212778A JPS5586618A (en) | 1978-12-25 | 1978-12-25 | Method and apparatus for controlling thickness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5586618A true JPS5586618A (en) | 1980-06-30 |
Family
ID=15748547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16212778A Pending JPS5586618A (en) | 1978-12-25 | 1978-12-25 | Method and apparatus for controlling thickness |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5586618A (en) |
-
1978
- 1978-12-25 JP JP16212778A patent/JPS5586618A/en active Pending
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