JPS5788910A - Method for controlling reduction position for rolling mill - Google Patents
Method for controlling reduction position for rolling millInfo
- Publication number
- JPS5788910A JPS5788910A JP55163357A JP16335780A JPS5788910A JP S5788910 A JPS5788910 A JP S5788910A JP 55163357 A JP55163357 A JP 55163357A JP 16335780 A JP16335780 A JP 16335780A JP S5788910 A JPS5788910 A JP S5788910A
- Authority
- JP
- Japan
- Prior art keywords
- load current
- rolling
- current
- rolling mill
- differential
- 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
Landscapes
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE: To correctly set reduction position in the initial stage of rolling and to improve productivity, by obtaining differential currents between actual load currents and a set load current of rolling mills, and controlling reduction apparatus so that the differential current may become zero.
CONSTITUTION: A load current IA of a rolling mill 1a is detected and a difference ΔI between the load current IA and a set load current IO previously obtained in relation to a target reduction position is calculated. Then, a signal ΔSC proportional to the differential current ΔI is outputted to a rolling control device 1b, and the rolling control device 1b is controlled and the roll opening of the rolling mill 1a is adjusted in the direction in which the differential current ΔI becomes zero. Therefore, as the roll opening is adjusted, a closed loop control system for constantly controlling the the load current of the roll is formed by changing the load current IA of a main motor 1C.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55163357A JPS6031562B2 (en) | 1980-11-21 | 1980-11-21 | Rolling mill rolling position control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55163357A JPS6031562B2 (en) | 1980-11-21 | 1980-11-21 | Rolling mill rolling position control method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5788910A true JPS5788910A (en) | 1982-06-03 |
JPS6031562B2 JPS6031562B2 (en) | 1985-07-23 |
Family
ID=15772341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55163357A Expired JPS6031562B2 (en) | 1980-11-21 | 1980-11-21 | Rolling mill rolling position control method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6031562B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62155284U (en) * | 1986-03-25 | 1987-10-02 |
-
1980
- 1980-11-21 JP JP55163357A patent/JPS6031562B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6031562B2 (en) | 1985-07-23 |
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