JPS5588930A - Coiling method of hot rolled hoop - Google Patents
Coiling method of hot rolled hoopInfo
- Publication number
- JPS5588930A JPS5588930A JP16118078A JP16118078A JPS5588930A JP S5588930 A JPS5588930 A JP S5588930A JP 16118078 A JP16118078 A JP 16118078A JP 16118078 A JP16118078 A JP 16118078A JP S5588930 A JPS5588930 A JP S5588930A
- Authority
- JP
- Japan
- Prior art keywords
- decrease
- tension
- motor
- point
- circuit
- 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
Landscapes
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
PURPOSE: To prevent spring-up by holding the magnetic field current of a motor for driving mandrel at the specific value after the point when the strip has passed through the finishing mill thereby decreasing the armature current in correspondence to the decrease in back tension.
CONSTITUTION: At the point when the tail of a strip 7 has passed through the final stand 6 of the finishing mill, the detection signal from a detector 12 causes the output of a tension reference control circuit 16 to decrease by the value corresponding to the amount of decrease having been in a tension decrease amount setting circuit 14. Based on this decreased output value, the armature current of a motor 11 decreases by the specified value corresponding to the decrease amount having been set in the decrease amount setting circuit 14. The magnetic field current of the motor 11 is held at the value of that point and further the output of the tension reference control circuit 16 decreases linearly according to the rate of decrease having been set in the tension decrease rate setting circuit 15 until the coiling ends after the point with the tail of the strip 7 has passed through the final stand 6. Upon ending of the coiling, the power supply to the motor circuit 11 is stopped by a mandrel stop circuit, whereby the coiling is ended.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16118078A JPS5588930A (en) | 1978-12-28 | 1978-12-28 | Coiling method of hot rolled hoop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16118078A JPS5588930A (en) | 1978-12-28 | 1978-12-28 | Coiling method of hot rolled hoop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5588930A true JPS5588930A (en) | 1980-07-05 |
Family
ID=15730098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16118078A Pending JPS5588930A (en) | 1978-12-28 | 1978-12-28 | Coiling method of hot rolled hoop |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5588930A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59169617A (en) * | 1983-03-15 | 1984-09-25 | Kawasaki Steel Corp | Control method of instruction to winding tension of coiler by following up back tension |
| KR100899641B1 (en) | 2007-12-27 | 2009-05-27 | 주식회사 포스코 | Winding method of hot rolled steel strip |
-
1978
- 1978-12-28 JP JP16118078A patent/JPS5588930A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59169617A (en) * | 1983-03-15 | 1984-09-25 | Kawasaki Steel Corp | Control method of instruction to winding tension of coiler by following up back tension |
| KR100899641B1 (en) | 2007-12-27 | 2009-05-27 | 주식회사 포스코 | Winding method of hot rolled steel strip |
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