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JPS57184507A - Controlling method for cooling hot rolled steel strip - Google Patents

Controlling method for cooling hot rolled steel strip

Info

Publication number
JPS57184507A
JPS57184507A JP56069385A JP6938581A JPS57184507A JP S57184507 A JPS57184507 A JP S57184507A JP 56069385 A JP56069385 A JP 56069385A JP 6938581 A JP6938581 A JP 6938581A JP S57184507 A JPS57184507 A JP S57184507A
Authority
JP
Japan
Prior art keywords
temp
strip
broadside
distributions
steel 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.)
Pending
Application number
JP56069385A
Other languages
Japanese (ja)
Inventor
Shoichi Takizawa
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.)
JFE Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP56069385A priority Critical patent/JPS57184507A/en
Publication of JPS57184507A publication Critical patent/JPS57184507A/en
Pending 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/44—Control of flatness or profile during rolling of strip, sheets or plates using heating, lubricating or water-spray cooling of the product
    • 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)
  • Control Of Heat Treatment Processes (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To make the temp. distributions of a hot rolled steel strip uniform and to improve the flatness thereof in the stage of cooling said steel strip by measuring the broadside temp. distributions of the strip, comparing the same with an optimum temp. distribution and controlling the cooling by cooling water in the broadside direction of the strip in accordance with the deviations thereof. CONSTITUTION:Just before a hot rolled steel strip W out from the finishing mill 11 of a hot rolling mill enters a coiler 13, the temp. distributions in the broadside direction thereof are measured with a broadside temp. distribution measuring device 5, and are compared with the broadside optimum temp. distribution of the steel plate W with an arithmetic device 6, which calculates the deviations between both. The signals by the deviation values are fed to driving mechanisms 8, 9, which in turn move baffle plates 1A, 1B and 2A, 2B provided freely movably back and forth between upper and lower headers 14 and 15 for cooling water provided above and below the strip W and the steel strip adequately, thereby cooling the strip W until it has the uniform broadside temp. distributions. The strip W is cooled in such a way as to have uniform temp. distributions in its broadside direction and it is coiled with the coiler 13 in the state of having improved flatness.
JP56069385A 1981-05-11 1981-05-11 Controlling method for cooling hot rolled steel strip Pending JPS57184507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56069385A JPS57184507A (en) 1981-05-11 1981-05-11 Controlling method for cooling hot rolled steel strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56069385A JPS57184507A (en) 1981-05-11 1981-05-11 Controlling method for cooling hot rolled steel strip

Publications (1)

Publication Number Publication Date
JPS57184507A true JPS57184507A (en) 1982-11-13

Family

ID=13401061

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56069385A Pending JPS57184507A (en) 1981-05-11 1981-05-11 Controlling method for cooling hot rolled steel strip

Country Status (1)

Country Link
JP (1) JPS57184507A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6087914A (en) * 1983-10-19 1985-05-17 Nippon Steel Corp Online cooling method of hot steel plate
CN103212585A (en) * 2012-01-24 2013-07-24 株式会社日立制作所 A control device of a hot mill used for thin plates and a control method of the hot mill used for thin plates

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6087914A (en) * 1983-10-19 1985-05-17 Nippon Steel Corp Online cooling method of hot steel plate
JPH0534093B2 (en) * 1983-10-19 1993-05-21 Nippon Steel Corp
CN103212585A (en) * 2012-01-24 2013-07-24 株式会社日立制作所 A control device of a hot mill used for thin plates and a control method of the hot mill used for thin plates

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