JPS5548414A - Screw-down control method of rolling mill - Google Patents
Screw-down control method of rolling millInfo
- Publication number
- JPS5548414A JPS5548414A JP12064778A JP12064778A JPS5548414A JP S5548414 A JPS5548414 A JP S5548414A JP 12064778 A JP12064778 A JP 12064778A JP 12064778 A JP12064778 A JP 12064778A JP S5548414 A JPS5548414 A JP S5548414A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- rolling
- screw
- rolling mill
- stress
- 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
Abstract
PURPOSE: To prevent damage of the pass roll and get rid of decline of the rate of operation, by deriving from the action moment the stress which is generated in the pass roll, and controlling depending upon whether or not the product of the foregoing and the coefficient of notch of the roll is smaller than the fatigue strength of the roll.
CONSTITUTION: Bending and torsional moment Mb, Mt act upon both the rolls by the rolling material carried between the upper and lower rolls 3, 4 which have received the rolling force of the rolling mill 1 of shape steel. The stress σm which is generated in both the rolls can be calculated by the expression I (d:roll diameter). At first, the rolling schedule of the rolling mill and also the roll constant are selected, and after confirming whether the screw-down and screw-up setting value is abnormal or not, the driving motor consumption power and the stress σm are derived by working the load cell 6. And in case the expression 4 (β, OR: coefficient of notch of roll, fatigue strength) ends in failure, the roll is released from the rolling material and simultaneously the rolling mill is stopped, through the cylinder 9 by transmission of the controller 11. In case the expression II is worked out, the usual screw-down control is carried out.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53120647A JPS5916531B2 (en) | 1978-09-30 | 1978-09-30 | Rolling control method in rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53120647A JPS5916531B2 (en) | 1978-09-30 | 1978-09-30 | Rolling control method in rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5548414A true JPS5548414A (en) | 1980-04-07 |
| JPS5916531B2 JPS5916531B2 (en) | 1984-04-16 |
Family
ID=14791391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53120647A Expired JPS5916531B2 (en) | 1978-09-30 | 1978-09-30 | Rolling control method in rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5916531B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61108393U (en) * | 1985-12-03 | 1986-07-09 | ||
| JPS626705A (en) * | 1985-07-02 | 1987-01-13 | Kotobuki Sangyo Kk | Hot skin pass device for bar and wire |
| JPS62104395U (en) * | 1985-12-23 | 1987-07-03 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61106141U (en) * | 1984-12-20 | 1986-07-05 |
-
1978
- 1978-09-30 JP JP53120647A patent/JPS5916531B2/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS626705A (en) * | 1985-07-02 | 1987-01-13 | Kotobuki Sangyo Kk | Hot skin pass device for bar and wire |
| JPH0218643B2 (en) * | 1985-07-02 | 1990-04-26 | Kotobuki Sangyo Kk | |
| JPS61108393U (en) * | 1985-12-03 | 1986-07-09 | ||
| JPS6211999Y2 (en) * | 1985-12-03 | 1987-03-24 | ||
| JPS62104395U (en) * | 1985-12-23 | 1987-07-03 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5916531B2 (en) | 1984-04-16 |
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