JPS5665941A - Controlling method for roll temperature of continuous annealing furnace - Google Patents
Controlling method for roll temperature of continuous annealing furnaceInfo
- Publication number
- JPS5665941A JPS5665941A JP14150079A JP14150079A JPS5665941A JP S5665941 A JPS5665941 A JP S5665941A JP 14150079 A JP14150079 A JP 14150079A JP 14150079 A JP14150079 A JP 14150079A JP S5665941 A JPS5665941 A JP S5665941A
- Authority
- JP
- Japan
- Prior art keywords
- temp
- steel sheet
- roll
- estimated
- annealing furnace
- 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
- 238000000137 annealing Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 title 1
- 229910000831 Steel Inorganic materials 0.000 abstract 10
- 239000010959 steel Substances 0.000 abstract 10
- 238000001816 cooling Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- 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 manufacture annealed steel sheet having good shape and high quality, by making the temp. of steel sheet at a guide roll for the steel sheet approach to the estimated temp. of a roll by heaters for heating roll. CONSTITUTION:The temp. of steel sheet 10 at every positions in the first cooling zone 16 are estimated by the calculation of the rate-controlling factor of a continuous annealing furnace. A heater 62 heats each roll in order to equalize the temp. of steel sheet 10 to the estimated temp., hereby the differences between temp. of the steel sheet 10 and the temp. of each roll is kept very small. The temp. of the roll after heated and the temp. of steel sheet are detected respectively by thermometers, and the difference from the estimated sheet temp. is calculated by a learning unit 54 and is fed to a precessor 44. As a result, the current of the heater 62 is suitably controlled because the difference between the estimated steel sheet temp. by learning control and the actual steel sheet temp. becomes smaller. When the annealing specifications such as the size or the heat pattern of the steel sheet is changed, the roll temp. is changed rapidly, hereby annealing operation is performed in a good yield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14150079A JPS5943981B2 (en) | 1979-10-31 | 1979-10-31 | Roll temperature control method for continuous annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14150079A JPS5943981B2 (en) | 1979-10-31 | 1979-10-31 | Roll temperature control method for continuous annealing furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5665941A true JPS5665941A (en) | 1981-06-04 |
| JPS5943981B2 JPS5943981B2 (en) | 1984-10-25 |
Family
ID=15293383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14150079A Expired JPS5943981B2 (en) | 1979-10-31 | 1979-10-31 | Roll temperature control method for continuous annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5943981B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0433646U (en) * | 1990-07-10 | 1992-03-19 | ||
| KR100636396B1 (en) | 2005-06-28 | 2006-10-18 | 주식회사 포스코 | Temperature Control Method of Continuous Annealing Furnace for Advanced Electrical Steel Sheet Manufacturing |
| JP2015151552A (en) * | 2014-02-10 | 2015-08-24 | 株式会社神戸製鋼所 | Suppression method of steel sheet surface flaw and continuous anneal furnace |
| JP2018159134A (en) * | 2018-06-18 | 2018-10-11 | 株式会社神戸製鋼所 | Steel sheet surface flaw suppression method and continuous annealing furnace |
-
1979
- 1979-10-31 JP JP14150079A patent/JPS5943981B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0433646U (en) * | 1990-07-10 | 1992-03-19 | ||
| KR100636396B1 (en) | 2005-06-28 | 2006-10-18 | 주식회사 포스코 | Temperature Control Method of Continuous Annealing Furnace for Advanced Electrical Steel Sheet Manufacturing |
| JP2015151552A (en) * | 2014-02-10 | 2015-08-24 | 株式会社神戸製鋼所 | Suppression method of steel sheet surface flaw and continuous anneal furnace |
| JP2018159134A (en) * | 2018-06-18 | 2018-10-11 | 株式会社神戸製鋼所 | Steel sheet surface flaw suppression method and continuous annealing furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5943981B2 (en) | 1984-10-25 |
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