JPS551955A - Plate passing speed control method in tandem rolling mill - Google Patents
Plate passing speed control method in tandem rolling millInfo
- Publication number
- JPS551955A JPS551955A JP7561578A JP7561578A JPS551955A JP S551955 A JPS551955 A JP S551955A JP 7561578 A JP7561578 A JP 7561578A JP 7561578 A JP7561578 A JP 7561578A JP S551955 A JPS551955 A JP S551955A
- Authority
- JP
- Japan
- Prior art keywords
- stand
- work roll
- revolving speed
- rolled
- speed
- 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
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE: To prevent the breakage phenomenon at the biting of the leading end and roll mark flaws by making the work roll revolving speed of each stand substantially lower than the steady plate passing speed before the material to be rolled bites into the stand and make it higher than the steady speed until the material bites into the stand of the next stage after the biting and returning it to the steady speed after biting into the stand of the next stage.
CONSTITUTION: Before the material to be rolled 24 reaches the first stand 18a, the work roll revolving speed of each stand is subjected to controlling of number of revolutions. When it is detected that the leading end of the material to be rolled 24 reaches the first stand and bites into the work roll 14, the work roll revolving speed of the first stand 18a is increased. When the leading end of the material to be rolled 24 reaches the second stand 18b, the work roll revolving speed of 18a is decreased and the work roll revolving speed of the second stand increased. Since the speeds are lower and higher than those of conventional steady plate pass speeds, the tension between the first and second stand becomes smaller.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7561578A JPS551955A (en) | 1978-06-21 | 1978-06-21 | Plate passing speed control method in tandem rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7561578A JPS551955A (en) | 1978-06-21 | 1978-06-21 | Plate passing speed control method in tandem rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS551955A true JPS551955A (en) | 1980-01-09 |
Family
ID=13581280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7561578A Pending JPS551955A (en) | 1978-06-21 | 1978-06-21 | Plate passing speed control method in tandem rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS551955A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63225677A (en) * | 1987-03-13 | 1988-09-20 | Nitto Electric Ind Co Ltd | Pressure-sensitive adhesive |
| JPH06154828A (en) * | 1992-11-25 | 1994-06-03 | Nkk Corp | Rolling method in rolling mill arranged in tandem |
-
1978
- 1978-06-21 JP JP7561578A patent/JPS551955A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63225677A (en) * | 1987-03-13 | 1988-09-20 | Nitto Electric Ind Co Ltd | Pressure-sensitive adhesive |
| JPH06154828A (en) * | 1992-11-25 | 1994-06-03 | Nkk Corp | Rolling method in rolling mill arranged in tandem |
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