JPS54115663A - Controlling method for temperature of steel material in hot rolling mill - Google Patents
Controlling method for temperature of steel material in hot rolling millInfo
- Publication number
- JPS54115663A JPS54115663A JP2211978A JP2211978A JPS54115663A JP S54115663 A JPS54115663 A JP S54115663A JP 2211978 A JP2211978 A JP 2211978A JP 2211978 A JP2211978 A JP 2211978A JP S54115663 A JPS54115663 A JP S54115663A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- slab
- heating furnace
- arithmetic unit
- exit side
- 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
- 229910000831 Steel Inorganic materials 0.000 title abstract 5
- 239000010959 steel Substances 0.000 title abstract 5
- 239000000463 material Substances 0.000 title abstract 3
- 238000005098 hot rolling Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 238000010438 heat treatment Methods 0.000 abstract 4
- 238000005096 rolling process Methods 0.000 abstract 3
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 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
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE:To make possible the manufacture of steel strip with superior quality without installing new rolling mill, by providing a special temperature controller constituted of the arithmetic unit for the length of slab, etc., at the temperature control of the steel material in the hot rolling mill. CONSTITUTION:When the aim temperature TFaim for the exit side of the finishing mill is given, the arithmetic unit 1 operates the temperature T0 for dragging out the slab of the heating furnace, according to the finishing sheet gauge hF, the threading speed VF0, the thickness H0 of slab on the exit side of the heating furnace, and the breadth (b) of the slab. Next, the arithmetic unit 2 operates the length L of the slab being dragged out of the heating furnace whose temperature at the accelerated rolling after the threading can be controlled to the aim temperature TFaim; further, the compensation value arithmetic unit 3 operates the temperature rise DELTAT0 for compensating the temperature drop of the steel material on the exit side, while the finishing mill is running at the maximum speed. By raising the temperature for dragging out the slab 8 by at least DELTAt, through the combustion setter 4 and burners 6a-6e of the heating furnace 7, the temperature of steel sheet is controlled to the aim temperature Tmax for the exit side, even after the rolling speed reaches the maximum speed Vmax.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2211978A JPS54115663A (en) | 1978-03-01 | 1978-03-01 | Controlling method for temperature of steel material in hot rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2211978A JPS54115663A (en) | 1978-03-01 | 1978-03-01 | Controlling method for temperature of steel material in hot rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54115663A true JPS54115663A (en) | 1979-09-08 |
| JPS637843B2 JPS637843B2 (en) | 1988-02-18 |
Family
ID=12073990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2211978A Granted JPS54115663A (en) | 1978-03-01 | 1978-03-01 | Controlling method for temperature of steel material in hot rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54115663A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6326214A (en) * | 1986-07-18 | 1988-02-03 | Toshiba Corp | Method and instrument for measuring extraction temperature of rolled stock |
| CN103252359A (en) * | 2012-02-15 | 2013-08-21 | 宝山钢铁股份有限公司 | Two-stage tape threading method for controlling finish rolling temperature |
| CN111530941A (en) * | 2020-04-30 | 2020-08-14 | 宝钢湛江钢铁有限公司 | Water temperature compensation method for improving control precision of strip steel coiling temperature in laminar cooling |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63287157A (en) * | 1987-05-20 | 1988-11-24 | Copal Electron Co Ltd | Picture input device |
-
1978
- 1978-03-01 JP JP2211978A patent/JPS54115663A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6326214A (en) * | 1986-07-18 | 1988-02-03 | Toshiba Corp | Method and instrument for measuring extraction temperature of rolled stock |
| CN103252359A (en) * | 2012-02-15 | 2013-08-21 | 宝山钢铁股份有限公司 | Two-stage tape threading method for controlling finish rolling temperature |
| CN111530941A (en) * | 2020-04-30 | 2020-08-14 | 宝钢湛江钢铁有限公司 | Water temperature compensation method for improving control precision of strip steel coiling temperature in laminar cooling |
| CN111530941B (en) * | 2020-04-30 | 2022-03-18 | 宝钢湛江钢铁有限公司 | Water temperature compensation method for improving control precision of strip steel coiling temperature in laminar cooling |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS637843B2 (en) | 1988-02-18 |
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