JPS5723035A - Controlling method for cooling of steel strip - Google Patents
Controlling method for cooling of steel stripInfo
- Publication number
- JPS5723035A JPS5723035A JP9482480A JP9482480A JPS5723035A JP S5723035 A JPS5723035 A JP S5723035A JP 9482480 A JP9482480 A JP 9482480A JP 9482480 A JP9482480 A JP 9482480A JP S5723035 A JPS5723035 A JP S5723035A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- temp
- steel strip
- cylinder
- strip
- 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
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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
- C21D9/5735—Details
- C21D9/5737—Rolls; Drums; Roll arrangements
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)
- Control Of Heat Treatment Processes (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
PURPOSE:To enhance cooling capacity and to control cooling of a steel strip in a highly precise manner by a method wherein a pass-around length of the steel strip is controlled to a desired length by moving a rotary cooling body and, at the same time, an outlet side speed of the steel strip after passing the rotary cooling cylinder is controlled to keep tension thereof constant. CONSTITUTION:A high temp. metal strip 1 is introduced into a cooling zone 20 through a hearth roll 7 and kept at a desired strip temp. to be transferred to a next process from the roll 7. In said cooling zone, rotary cooling rolls 2-6 into which a cooling medium is introduced so as to be flowed along an inner peripheral surface of a barrel part thereof and, among said rolls, the rolls 3, 5 are made movable by a cylinder 10. Then, a strip temp. meter 9 of the steel strip 1 is provided to an outlet side of the cooling zone 20 and deviation DELTAt between the measured temp. t1 and a set value t2 is calculated by a temp. controller 13 to be applied to a servo valve 11. Next, the valve 11 is communicated with a cylinder displacement detector 12 through the cylinder 10 and the displacement amount thereof is applied to an operation apparatus 14. Subsequently, a disired signal is introduced into a speed control apparatus 15 to adjust the rotation speed of rotary roll motors 3'-7'.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9482480A JPS6035975B2 (en) | 1980-07-11 | 1980-07-11 | Steel strip cooling control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9482480A JPS6035975B2 (en) | 1980-07-11 | 1980-07-11 | Steel strip cooling control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5723035A true JPS5723035A (en) | 1982-02-06 |
| JPS6035975B2 JPS6035975B2 (en) | 1985-08-17 |
Family
ID=14120795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9482480A Expired JPS6035975B2 (en) | 1980-07-11 | 1980-07-11 | Steel strip cooling control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6035975B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5920428A (en) * | 1982-07-26 | 1984-02-02 | Nippon Kokan Kk <Nkk> | Steel strip cooling method in continuous annealing furnace |
| US4495009A (en) * | 1982-07-08 | 1985-01-22 | Kawasaki Steel Corporation | Method of cooling cold steel strip with cooling rolls |
| JPS609962U (en) * | 1983-06-29 | 1985-01-23 | 日本鋼管株式会社 | Roll cooling equipment |
| JPS61243128A (en) * | 1985-04-20 | 1986-10-29 | Nippon Steel Corp | Cooling method for metallic strip in cooling zone of continuous annealing furnace |
-
1980
- 1980-07-11 JP JP9482480A patent/JPS6035975B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4495009A (en) * | 1982-07-08 | 1985-01-22 | Kawasaki Steel Corporation | Method of cooling cold steel strip with cooling rolls |
| JPS5920428A (en) * | 1982-07-26 | 1984-02-02 | Nippon Kokan Kk <Nkk> | Steel strip cooling method in continuous annealing furnace |
| JPS609962U (en) * | 1983-06-29 | 1985-01-23 | 日本鋼管株式会社 | Roll cooling equipment |
| JPS61243128A (en) * | 1985-04-20 | 1986-10-29 | Nippon Steel Corp | Cooling method for metallic strip in cooling zone of continuous annealing furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6035975B2 (en) | 1985-08-17 |
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