JPS55100919A - Control of crown in hearth roll at continuous annealing furnace - Google Patents
Control of crown in hearth roll at continuous annealing furnaceInfo
- Publication number
- JPS55100919A JPS55100919A JP479579A JP479579A JPS55100919A JP S55100919 A JPS55100919 A JP S55100919A JP 479579 A JP479579 A JP 479579A JP 479579 A JP479579 A JP 479579A JP S55100919 A JPS55100919 A JP S55100919A
- Authority
- JP
- Japan
- Prior art keywords
- crown
- flow rate
- steel plate
- temperature
- coolant
- 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
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Control Of Heat Treatment Processes (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
PURPOSE: To stabilize continuous annealing operation by a method wherein crown of hearth roll in furnace is adjusted to a proper amount of crown according to the size of steel plate supplied to a continuous annealing furnace, and the crown is controlled in such a manner that the drawing and the staggering of the steel plate are corrected.
CONSTITUTION: The flow rate and the temperature of a coolant are preset by a setting device 9, before steel plate 2 is supplied to an annealing furnace, said flow rate and said temperature being previously set basing upon the thickness and the width of the steel plate. The coolant is sprayed through a nozzle header 10 on a hearth roll to keep a proper amount of crown. When the drawing and the meandering of the steel plate 2 are occurred during operation, the amount of the meandering is detected by a detector 3. A signal is treated by a signal treating circuit 4 and transmitted to an arithmetical circuit 5, where the transmitted amount of the meandering is compared with a value previously set and the flow rate and the temperature of the coolant required to restore the proper amount of the crown are operated arithmetically. Control devices 6, 7 for the flow rate and the temperature are operated by the signal obtained. The coolant having a proper flow rate and temperature is supplied to correct the crown to the proper amount thereof.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP479579A JPS5843454B2 (en) | 1979-01-22 | 1979-01-22 | Crown control method in hearth roll of continuous annealing furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP479579A JPS5843454B2 (en) | 1979-01-22 | 1979-01-22 | Crown control method in hearth roll of continuous annealing furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55100919A true JPS55100919A (en) | 1980-08-01 |
JPS5843454B2 JPS5843454B2 (en) | 1983-09-27 |
Family
ID=11593702
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP479579A Expired JPS5843454B2 (en) | 1979-01-22 | 1979-01-22 | Crown control method in hearth roll of continuous annealing furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5843454B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04202717A (en) * | 1990-11-30 | 1992-07-23 | Kobe Steel Ltd | Device for controlling crown of hearth roll in continuous heat treatment furnace |
JPH04202716A (en) * | 1990-11-30 | 1992-07-23 | Kobe Steel Ltd | Device for controlling crown of hearth roll in continuous heat treatment furnace |
US6238209B1 (en) | 2000-05-17 | 2001-05-29 | Kawasaki Steel Corporation | Hearth rolls for heating furnace and soaking furnace of vertical heat treating furnace and vertical heat treating furnace including hearth rolls |
JP2016147739A (en) * | 2015-02-12 | 2016-08-18 | 日本碍子株式会社 | Transfer roller, heat treatment device, and infrared treatment device |
-
1979
- 1979-01-22 JP JP479579A patent/JPS5843454B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04202717A (en) * | 1990-11-30 | 1992-07-23 | Kobe Steel Ltd | Device for controlling crown of hearth roll in continuous heat treatment furnace |
JPH04202716A (en) * | 1990-11-30 | 1992-07-23 | Kobe Steel Ltd | Device for controlling crown of hearth roll in continuous heat treatment furnace |
US6238209B1 (en) | 2000-05-17 | 2001-05-29 | Kawasaki Steel Corporation | Hearth rolls for heating furnace and soaking furnace of vertical heat treating furnace and vertical heat treating furnace including hearth rolls |
JP2016147739A (en) * | 2015-02-12 | 2016-08-18 | 日本碍子株式会社 | Transfer roller, heat treatment device, and infrared treatment device |
Also Published As
Publication number | Publication date |
---|---|
JPS5843454B2 (en) | 1983-09-27 |
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