JPS5760034A - Method for cotrolling cooling - Google Patents

Method for cotrolling cooling

Info

Publication number
JPS5760034A
JPS5760034A JP13617780A JP13617780A JPS5760034A JP S5760034 A JPS5760034 A JP S5760034A JP 13617780 A JP13617780 A JP 13617780A JP 13617780 A JP13617780 A JP 13617780A JP S5760034 A JPS5760034 A JP S5760034A
Authority
JP
Japan
Prior art keywords
nozzles
cooling
strip
water
density
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
Application number
JP13617780A
Other languages
Japanese (ja)
Other versions
JPS613379B2 (en
Inventor
Katsuhiko Yui
Kunihiko Harada
Takanao Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP13617780A priority Critical patent/JPS5760034A/en
Publication of JPS5760034A publication Critical patent/JPS5760034A/en
Publication of JPS613379B2 publication Critical patent/JPS613379B2/ja
Granted legal-status Critical Current

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

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 obtain desired cooling rate and cooling end point temp. through controlling of only the shutoff valves by providing the shutoff valves to supply pipes for refrigerant to be injected from nozzles for cooling a material to be cooled, determining effective cooling length, the number of nozzles, and refrigerant density, and turning nozzles on which are provided uniformly and dispersedly. CONSTITUTION:Shutoff valves 32, 34... are provided to water supply pipes 22, 24... to nozzles 12... for cooling a strip 10 by injecting gas and water. Effective cooling length le is determined by the equationI(Ti, To: inlet and outlet side temps. of the trip 10, CR: cooling rate: V: transfer speed of the strip 10), and the number of nozzles (n) by the equation II (leo: the effective cooling lenght per nozzle). Water flow density W is determined by the equation III (rho, Cp, h: the density, specific heat and thickness of the strip 10, K, alpha-delta: constants, G: wind flow density, Tw: water temp., Tg: wind temp.). On the other hand, if n* pieces of the nozzles are turned on and the rest are turned off within the le of the number of nozzles (n), the number of on nozzles is determined by the equation IV (b: the length of a nozzle injection area in the width direction of the strip 10, qo: the water flow rate per nozzle).
JP13617780A 1980-09-30 1980-09-30 Method for cotrolling cooling Granted JPS5760034A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13617780A JPS5760034A (en) 1980-09-30 1980-09-30 Method for cotrolling cooling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13617780A JPS5760034A (en) 1980-09-30 1980-09-30 Method for cotrolling cooling

Publications (2)

Publication Number Publication Date
JPS5760034A true JPS5760034A (en) 1982-04-10
JPS613379B2 JPS613379B2 (en) 1986-01-31

Family

ID=15169122

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13617780A Granted JPS5760034A (en) 1980-09-30 1980-09-30 Method for cotrolling cooling

Country Status (1)

Country Link
JP (1) JPS5760034A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6077932A (en) * 1983-10-03 1985-05-02 Nippon Steel Corp Steel cooling apparatus capable of widely controlling flow rate of refrigerant
EP0195658A2 (en) * 1985-03-22 1986-09-24 Kawasaki Steel Corporation Method and apparatus of cooling steel strip
JPH01104971U (en) * 1987-12-29 1989-07-14
JPH02126688U (en) * 1989-03-28 1990-10-18
US5378185A (en) * 1993-11-15 1995-01-03 Book Loan Publishing Co., Ltd. Building blocks

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6077932A (en) * 1983-10-03 1985-05-02 Nippon Steel Corp Steel cooling apparatus capable of widely controlling flow rate of refrigerant
JPH057448B2 (en) * 1983-10-03 1993-01-28 Nippon Steel Corp
EP0195658A2 (en) * 1985-03-22 1986-09-24 Kawasaki Steel Corporation Method and apparatus of cooling steel strip
JPH01104971U (en) * 1987-12-29 1989-07-14
JPH02126688U (en) * 1989-03-28 1990-10-18
US5378185A (en) * 1993-11-15 1995-01-03 Book Loan Publishing Co., Ltd. Building blocks

Also Published As

Publication number Publication date
JPS613379B2 (en) 1986-01-31

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