JPS5510309A - Method and apparatus for protecting of rolling mill - Google Patents
Method and apparatus for protecting of rolling millInfo
- Publication number
- JPS5510309A JPS5510309A JP8204378A JP8204378A JPS5510309A JP S5510309 A JPS5510309 A JP S5510309A JP 8204378 A JP8204378 A JP 8204378A JP 8204378 A JP8204378 A JP 8204378A JP S5510309 A JPS5510309 A JP S5510309A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- rolling mill
- plate thickness
- allowable value
- outputs
- 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 enable perfect protection to be performed by so operating the device that abnormal signal is outputted by detecting the approach of an abnormally thick protion to the rolling mill and the bite of the abnormal thick portions is prevented based on this signal.
CONSTITUTION: A plate thickness detector 8 detects the thickness of the incoming rolling material and outputs the signal Δh proportional to the deviation between the target value and the actual plate thickness. A calculator 100, in which the allowable value α of fluctuations has been set, takes in the output Δh of the plate thickness detector 8, compares the same with the allowable value α and outputs a signal when Δh exceeds the allowable value α. A shear 9 is operated based on this signal and a rolling mill 5 and uncoiler 2 stop. At the same time, the signal for opening the roll gap at the maximum speed is emitted to a screw-down device 7, by which the breakdown of the rolling mill is perfectly prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8204378A JPS5510309A (en) | 1978-07-07 | 1978-07-07 | Method and apparatus for protecting of rolling mill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8204378A JPS5510309A (en) | 1978-07-07 | 1978-07-07 | Method and apparatus for protecting of rolling mill |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5510309A true JPS5510309A (en) | 1980-01-24 |
Family
ID=13763481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8204378A Pending JPS5510309A (en) | 1978-07-07 | 1978-07-07 | Method and apparatus for protecting of rolling mill |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5510309A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5079941A (en) * | 1987-07-13 | 1992-01-14 | Hoogovens Groep Bv | Temper mill installation and shearing machine for use in such an installation |
-
1978
- 1978-07-07 JP JP8204378A patent/JPS5510309A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5079941A (en) * | 1987-07-13 | 1992-01-14 | Hoogovens Groep Bv | Temper mill installation and shearing machine for use in such an installation |
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