JPS56114518A - Automatic thickness controller for continuous rolling mill - Google Patents
Automatic thickness controller for continuous rolling millInfo
- Publication number
- JPS56114518A JPS56114518A JP1803280A JP1803280A JPS56114518A JP S56114518 A JPS56114518 A JP S56114518A JP 1803280 A JP1803280 A JP 1803280A JP 1803280 A JP1803280 A JP 1803280A JP S56114518 A JPS56114518 A JP S56114518A
- Authority
- JP
- Japan
- Prior art keywords
- thickness
- action
- screw position
- changing
- rolling
- 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
- B21B37/26—Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE: To always maintain stable automatic thickness control characteristic, and to improve the accuracy of thickness, by interrupting the action of thickness control on the occasion of changing the thickness, and by altering each constant correlatively included in a rolling load, the variation of a screw position, the run-out side thickness deviation and the correction for the screw position.
CONSTITUTION: On the occasion of changing the thickness, the automatic thickness controlling action of each rolling stand 1 is interrupted according to the signal to start the changing action for thickness of the traveling strip. The screw position is altered to a new position set for the thickness of the second product. Soon or a specified time after ending the thickness changing action, the rolling load and the screw position at that moment are memorized as the reference rolling load and screw position for the second product; then, the action of the rolling force controlling type automatic thickness control 5 is restarted taking above stored data as the reference for the following thickness control. By the present mechanism, the characteristic of automatic thickness control stabilizes notwithstanding the change of strip's plastic hardness in each rolling stand 1.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1803280A JPS56114518A (en) | 1980-02-16 | 1980-02-16 | Automatic thickness controller for continuous rolling mill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1803280A JPS56114518A (en) | 1980-02-16 | 1980-02-16 | Automatic thickness controller for continuous rolling mill |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56114518A true JPS56114518A (en) | 1981-09-09 |
Family
ID=11960319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1803280A Pending JPS56114518A (en) | 1980-02-16 | 1980-02-16 | Automatic thickness controller for continuous rolling mill |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56114518A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102950155A (en) * | 2012-10-16 | 2013-03-06 | 河北钢铁股份有限公司唐山分公司 | AGC (Automatic Gain Control) method capable of calculating thickness based on second flow |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5061363A (en) * | 1973-10-03 | 1975-05-26 | ||
JPS51145448A (en) * | 1975-06-10 | 1976-12-14 | Tokyo Shibaura Electric Co | Control device for hydraulic rolling mill |
JPS5274557A (en) * | 1975-12-18 | 1977-06-22 | Mitsubishi Electric Corp | Method of compensating cain of control of quantity looped by looper apparatus |
JPS52116760A (en) * | 1976-03-26 | 1977-09-30 | Hitachi Ltd | Method of automatically controlling thickness of plate in rolling |
JPS53104560A (en) * | 1977-02-25 | 1978-09-11 | Toshiba Corp | Auotomatic plate thickness controller |
JPS5517412A (en) * | 1978-07-25 | 1980-02-06 | Toshiba Corp | Pressure transmitter with replacement unit |
-
1980
- 1980-02-16 JP JP1803280A patent/JPS56114518A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5061363A (en) * | 1973-10-03 | 1975-05-26 | ||
JPS51145448A (en) * | 1975-06-10 | 1976-12-14 | Tokyo Shibaura Electric Co | Control device for hydraulic rolling mill |
JPS5274557A (en) * | 1975-12-18 | 1977-06-22 | Mitsubishi Electric Corp | Method of compensating cain of control of quantity looped by looper apparatus |
JPS52116760A (en) * | 1976-03-26 | 1977-09-30 | Hitachi Ltd | Method of automatically controlling thickness of plate in rolling |
JPS53104560A (en) * | 1977-02-25 | 1978-09-11 | Toshiba Corp | Auotomatic plate thickness controller |
JPS5517412A (en) * | 1978-07-25 | 1980-02-06 | Toshiba Corp | Pressure transmitter with replacement unit |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102950155A (en) * | 2012-10-16 | 2013-03-06 | 河北钢铁股份有限公司唐山分公司 | AGC (Automatic Gain Control) method capable of calculating thickness based on second flow |
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