JPS5588921A - Steel sheet cooler in hot strip mill - Google Patents

Steel sheet cooler in hot strip mill

Info

Publication number
JPS5588921A
JPS5588921A JP16012378A JP16012378A JPS5588921A JP S5588921 A JPS5588921 A JP S5588921A JP 16012378 A JP16012378 A JP 16012378A JP 16012378 A JP16012378 A JP 16012378A JP S5588921 A JPS5588921 A JP S5588921A
Authority
JP
Japan
Prior art keywords
steel sheet
cooling
water
water spray
cooler
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
JP16012378A
Other languages
Japanese (ja)
Other versions
JPS6233005B2 (en
Inventor
Atsuhiro Wakako
Teruo Yokokura
Mamoru Tashiro
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 JP16012378A priority Critical patent/JPS5588921A/en
Publication of JPS5588921A publication Critical patent/JPS5588921A/en
Publication of JPS6233005B2 publication Critical patent/JPS6233005B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
    • 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
    • B21B37/76—Cooling control on the run-out table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To cool the steel sheet exactly to aim temperature at required cooling rate, by employing the water nozzle of the specified inner diameter, and by specifying the face-to-face distance of the nozzle and steel sheet, and by making variable the distribution of flow rate of cooling water to each cooling zone. CONSTITUTION:In the steel sheet cooler with the laminar flow type cooling system, the inner diameter of the water spray nozzles 16, 18, is specified to 15-30mmphi, and the face-to-face distance between the water spray nozzle and the steel sheet is specified to 1.5m or less; and the water spray header is arranged over entire length of the steel sheet cooler. The steel sheet cooler is divided into plural cooling zones; and the flow rate controllers 6a-6e, 9a-9e, are installed at the middle of the branch pipe to be supplied water from the main water supply pipes 5, 8. The distribution of the flow rate to each cooling zone is made variable within a limit of the maximum amount of water supply. The thermometer 3 measures the finishing temperature of the steel sheet, and the thermometer 4 measures the coiling temperature. At the cooling zone, the steel sheet is cooled from upside and bottom by the water spray headers 7, 10. According to this method, the control range for the cooling rate is greatly extended.
JP16012378A 1978-12-27 1978-12-27 Steel sheet cooler in hot strip mill Granted JPS5588921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16012378A JPS5588921A (en) 1978-12-27 1978-12-27 Steel sheet cooler in hot strip mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16012378A JPS5588921A (en) 1978-12-27 1978-12-27 Steel sheet cooler in hot strip mill

Publications (2)

Publication Number Publication Date
JPS5588921A true JPS5588921A (en) 1980-07-05
JPS6233005B2 JPS6233005B2 (en) 1987-07-17

Family

ID=15708355

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16012378A Granted JPS5588921A (en) 1978-12-27 1978-12-27 Steel sheet cooler in hot strip mill

Country Status (1)

Country Link
JP (1) JPS5588921A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57156832A (en) * 1981-03-25 1982-09-28 Sumitomo Metal Ind Ltd Coiling method for hot strip
JPS5966421U (en) * 1982-10-27 1984-05-04 株式会社ハセガワトレ−デイング umbrella
US4591133A (en) * 1981-11-20 1986-05-27 Nippon Steel Corporation Cooling apparatus for thick steel plate
US4645185A (en) * 1984-07-04 1987-02-24 Centro Sperimentale Metallurgico S.P.A. Device for cooling hot-rolled flat products
US4974424A (en) * 1986-02-04 1990-12-04 Kawasaki Steel Corp. Method and system for cooling strip
JP2016163898A (en) * 2015-03-06 2016-09-08 株式会社神戸製鋼所 Method and device for cooling thick steel plate

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491147A (en) * 1972-04-14 1974-01-08
JPS5235711A (en) * 1975-09-16 1977-03-18 Sumitomo Metal Ind Ltd Method of controlling cooling of hot rolled steel plates

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491147A (en) * 1972-04-14 1974-01-08
JPS5235711A (en) * 1975-09-16 1977-03-18 Sumitomo Metal Ind Ltd Method of controlling cooling of hot rolled steel plates

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57156832A (en) * 1981-03-25 1982-09-28 Sumitomo Metal Ind Ltd Coiling method for hot strip
US4591133A (en) * 1981-11-20 1986-05-27 Nippon Steel Corporation Cooling apparatus for thick steel plate
JPS5966421U (en) * 1982-10-27 1984-05-04 株式会社ハセガワトレ−デイング umbrella
US4645185A (en) * 1984-07-04 1987-02-24 Centro Sperimentale Metallurgico S.P.A. Device for cooling hot-rolled flat products
US4974424A (en) * 1986-02-04 1990-12-04 Kawasaki Steel Corp. Method and system for cooling strip
JP2016163898A (en) * 2015-03-06 2016-09-08 株式会社神戸製鋼所 Method and device for cooling thick steel plate

Also Published As

Publication number Publication date
JPS6233005B2 (en) 1987-07-17

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