JPS56168908A - Cooling apparatus for hot rolled steel sheet - Google Patents

Cooling apparatus for hot rolled steel sheet

Info

Publication number
JPS56168908A
JPS56168908A JP7349580A JP7349580A JPS56168908A JP S56168908 A JPS56168908 A JP S56168908A JP 7349580 A JP7349580 A JP 7349580A JP 7349580 A JP7349580 A JP 7349580A JP S56168908 A JPS56168908 A JP S56168908A
Authority
JP
Japan
Prior art keywords
steel sheet
cooling
cooling water
water
hot rolled
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
JP7349580A
Other languages
Japanese (ja)
Other versions
JPS5926371B2 (en
Inventor
Hiroshi Kawasaki
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
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP55073495A priority Critical patent/JPS5926371B2/en
Publication of JPS56168908A publication Critical patent/JPS56168908A/en
Publication of JPS5926371B2 publication Critical patent/JPS5926371B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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 Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To uniformly cool a hot rolled steel sheet, and to improve its quality, by installing a nozzle for ejecting high pressure cooling water whose flow rate is adjustable correspondingly to temperature of the hot rolled steel sheet, additionally to a zone cooler so as to form a two-stage cooling system, in case of cooling a hot rolled steel sheet. CONSTITUTION:At cooling a steel sheet prepared from a slab through a hot roughting pass and a finishig pass, the upper and lower sides of the steet sheet is water cooled with many cooling water heads 11 of a zone cooler 7 as the first cooling stage. Hereupon, the steel sheet is uniformly cooled by cooling the upper side of the steel sheet with a laminar flow of cooling water and the lower side with a spray of low pressure water. Next, 10-20kg/cm<2> high pressure cooling water is ejected from ejecting nozzles 16 of a high pressure water cooling apparatus 8 in order to cool the steel sheet as the second cooling stage. Many nozzles 16 are arranged over the full breadth of the steel sheet; a thermometer 9 equipped on the lower side of the steel measures the temperature of the steet sheel and inputs the measured temperature values to a controller 10. The opening of the a flow control valve 15 for cooling water to be ejected from the nozzle 16 is controlled by a signal sent from the controller 10; hereby, the flow rate of cooling water to be sent to the nozzle 16 is adjusted so as to continuously cool the steel to uniform temperatures.
JP55073495A 1980-05-31 1980-05-31 Cooling equipment for hot rolled steel sheets Expired JPS5926371B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55073495A JPS5926371B2 (en) 1980-05-31 1980-05-31 Cooling equipment for hot rolled steel sheets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55073495A JPS5926371B2 (en) 1980-05-31 1980-05-31 Cooling equipment for hot rolled steel sheets

Publications (2)

Publication Number Publication Date
JPS56168908A true JPS56168908A (en) 1981-12-25
JPS5926371B2 JPS5926371B2 (en) 1984-06-27

Family

ID=13519890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55073495A Expired JPS5926371B2 (en) 1980-05-31 1980-05-31 Cooling equipment for hot rolled steel sheets

Country Status (1)

Country Link
JP (1) JPS5926371B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6018218A (en) * 1983-07-12 1985-01-30 Ishikawajima Harima Heavy Ind Co Ltd Cooling device of steel sheet
JPS6049801A (en) * 1983-08-31 1985-03-19 Nippon Steel Corp Manufacture of hot rolling steel sheet having shaped cross section
KR100782681B1 (en) * 2001-10-11 2007-12-07 주식회사 포스코 Apparatus for controlling pressure with interlocked temperature
WO2009043668A1 (en) * 2007-09-27 2009-04-09 Siemens Aktiengesellschaft Operating method for a cooling section having centralized detection of valve characteristics and objects corresponding thereto
CN103272857A (en) * 2013-01-18 2013-09-04 山西太钢不锈钢股份有限公司 Method for automatically controlling liquid level of laminar cooling water tank
CN103586290A (en) * 2013-10-27 2014-02-19 沈阳建筑大学 Soft measurement method for temperature of strip steel in laminar cooling process
CN112246881A (en) * 2020-09-29 2021-01-22 五矿营口中板有限责任公司 X70 thin and wide plate shape control method suitable for ultra-fast cooling

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR201821233A2 (en) * 2018-12-31 2020-07-21 Tofas Tuerk Otomobil Fabrikasi Anonim Sirketi CEILING LATCH WITH A CONNECTION STRUCTURE

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6018218A (en) * 1983-07-12 1985-01-30 Ishikawajima Harima Heavy Ind Co Ltd Cooling device of steel sheet
JPH0575487B2 (en) * 1983-07-12 1993-10-20 Ishikawajima Harima Heavy Ind
JPS6049801A (en) * 1983-08-31 1985-03-19 Nippon Steel Corp Manufacture of hot rolling steel sheet having shaped cross section
KR100782681B1 (en) * 2001-10-11 2007-12-07 주식회사 포스코 Apparatus for controlling pressure with interlocked temperature
WO2009043668A1 (en) * 2007-09-27 2009-04-09 Siemens Aktiengesellschaft Operating method for a cooling section having centralized detection of valve characteristics and objects corresponding thereto
US8463446B2 (en) 2007-09-27 2013-06-11 Siemens Aktiengesellschaft Operating method for a cooling section having centralized detection of valve characteristics and objects corresponding thereto
CN103272857A (en) * 2013-01-18 2013-09-04 山西太钢不锈钢股份有限公司 Method for automatically controlling liquid level of laminar cooling water tank
CN103586290A (en) * 2013-10-27 2014-02-19 沈阳建筑大学 Soft measurement method for temperature of strip steel in laminar cooling process
CN112246881A (en) * 2020-09-29 2021-01-22 五矿营口中板有限责任公司 X70 thin and wide plate shape control method suitable for ultra-fast cooling

Also Published As

Publication number Publication date
JPS5926371B2 (en) 1984-06-27

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