JPS5656711A - Controlling method for interstand tension of continuous rolling mill - Google Patents
Controlling method for interstand tension of continuous rolling millInfo
- Publication number
- JPS5656711A JPS5656711A JP13180879A JP13180879A JPS5656711A JP S5656711 A JPS5656711 A JP S5656711A JP 13180879 A JP13180879 A JP 13180879A JP 13180879 A JP13180879 A JP 13180879A JP S5656711 A JPS5656711 A JP S5656711A
- Authority
- JP
- Japan
- Prior art keywords
- stand
- deformation resistance
- average deformation
- arithmetic unit
- rolling torque
- 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
- 238000005096 rolling process Methods 0.000 title abstract 5
- 238000000034 method Methods 0.000 title 1
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
- B21B37/48—Tension control; Compression control
- B21B37/52—Tension control; Compression control by drive motor control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE:To maintain the interstand tension constant, by forecasting the average deformation resistance of the material to be rolled in each stand, and by controlling the driving speed of each stand so as to make the ratio constant between said average deformation resistance and the rolling torque of each stand. CONSTITUTION:The material is rolled by the stands (i) and (i+1) in this order after passing the thermometer 2. The temperature detected by the thermometer 2 is sent to the average deformation resistance arithmetic unit 4 through the delay device 3; the arithmetic unit 4 calculated the material temperature theta1 of the stand (i) and operates the average deformation resistance Kmi. The arithmetic unit 6 calculates the rolling torque Gi from the load of the driving motor 5. The arithmetic unit 7 calculates the ratio GiM/KmiM from the rolling torque GiM of the stand (i) under the tensionless condition and the average deformation resistance KmiM; this ratio is stored in the memory device 8. The formula I is calculated by the multiplier 10, and the formula II is obtained for the rolling torque corresponding to the tension free from the influence of the fluctuation of the material temperature. The reference speed correction unit 11 calculates the reference speed correction value DELTANi from the formula III, and corrects the rotational speed of the stand (i) by the reference speed correction value DELTANi through the speed controller 12 in order to control the tension between the stands (i) and (i+1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13180879A JPS5656711A (en) | 1979-10-15 | 1979-10-15 | Controlling method for interstand tension of continuous rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13180879A JPS5656711A (en) | 1979-10-15 | 1979-10-15 | Controlling method for interstand tension of continuous rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5656711A true JPS5656711A (en) | 1981-05-18 |
| JPS6313765B2 JPS6313765B2 (en) | 1988-03-28 |
Family
ID=15066585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13180879A Granted JPS5656711A (en) | 1979-10-15 | 1979-10-15 | Controlling method for interstand tension of continuous rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5656711A (en) |
-
1979
- 1979-10-15 JP JP13180879A patent/JPS5656711A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6313765B2 (en) | 1988-03-28 |
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