JPS57121702A - Cooling method of hot material - Google Patents
Cooling method of hot materialInfo
- Publication number
- JPS57121702A JPS57121702A JP671781A JP671781A JPS57121702A JP S57121702 A JPS57121702 A JP S57121702A JP 671781 A JP671781 A JP 671781A JP 671781 A JP671781 A JP 671781A JP S57121702 A JPS57121702 A JP S57121702A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- cut
- water
- time
- cooling header
- 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
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
Abstract
PURPOSE:To economize the quantity of cooling water to be used, by feeding water to a cooling header intermittently by interlocking with the opening and closing operations of a cut-off valve. CONSTITUTION:An on-off valve 12 is provided in a pipe 11 for connecting a cooling water feed source 1 and a cooling header 2, a cut-off valve 21 is provided on an ejection port of the bottom part of the cooling header 2, and an operation timing control signal is sent from a control device 6 to the on-off valve 12 and the cut-off valve 21, respectively. At first, the on-off valve 12 is opened, the cut-off valve 21 is closed, water is fed to the cooling header 2, and a time t1 required for discharging water from the overflow is measured. After the time t1 has passed, the cut-off valve 21 is opened. Subsequently, when the cooling header 2 is operated normally, the time t2 when water is discharged from the overflow of the cooling header 2 is measured by simultaneously closing the on-off valve 12 and the cut-off valve 21. The opening and closing operations of the on-off valve 12 are made faster than the opening and closing operation time of the cut-off valve 21 by a time t2' obtained by multiplying said t2 by the safety rate (k<l).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP671781A JPS57121702A (en) | 1981-01-20 | 1981-01-20 | Cooling method of hot material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP671781A JPS57121702A (en) | 1981-01-20 | 1981-01-20 | Cooling method of hot material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57121702A true JPS57121702A (en) | 1982-07-29 |
Family
ID=11646011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP671781A Pending JPS57121702A (en) | 1981-01-20 | 1981-01-20 | Cooling method of hot material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57121702A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5033329B2 (en) * | 1972-09-20 | 1975-10-29 |
-
1981
- 1981-01-20 JP JP671781A patent/JPS57121702A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5033329B2 (en) * | 1972-09-20 | 1975-10-29 |
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