JPS57156824A - Controlling method for strip temperature in cold rolling - Google Patents

Controlling method for strip temperature in cold rolling

Info

Publication number
JPS57156824A
JPS57156824A JP56042780A JP4278081A JPS57156824A JP S57156824 A JPS57156824 A JP S57156824A JP 56042780 A JP56042780 A JP 56042780A JP 4278081 A JP4278081 A JP 4278081A JP S57156824 A JPS57156824 A JP S57156824A
Authority
JP
Japan
Prior art keywords
strip
temp
rolling
function
coolant
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
JP56042780A
Other languages
Japanese (ja)
Inventor
Ichiro Imai
Takashi Asamura
Tadaatsu Inoue
Yoshiteru Kurata
Ikuya Yamamoto
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 JP56042780A priority Critical patent/JPS57156824A/en
Publication of JPS57156824A publication Critical patent/JPS57156824A/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
    • B21B37/74—Temperature control, e.g. by cooling or heating the rolls or 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
    • B21B1/28—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 cold-rolling, e.g. Steckel cold mill

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

PURPOSE:To control the temp. of strip under rolling automatically to the target value in the stage of cold rolling of the strip by controlling the flow rate of a strip coolant with a preset function and a dynamic controlling function. CONSTITUTION:In the stage of cold rolling of a strip, the flow rate pattern of a strip coolant for rolling speeds are set in a preset function. When the temp. of the strip deviates from the range of the target temp. pattern in the rolling work, the increasing or decreasing portions of the coolant flow rates between the respective rolling stands are calculated by the temp. deviation thereof and are outoutted as opening assignment signals for motor driving valves 21-25 from the preset function. Also, the temp. of the strip on the outlet side of the final stand is detected with a thermometer 4, and the output thereof is compared with the preset target temp. memory 5 of a dynamic controlling function. The differential signal thereof is inputted to a function generator 6, and the correction quantities of the coolant flow rates in the respective stands are calculated, whereby the opening degree command signals of the motor driving valves are controlled adequately.
JP56042780A 1981-03-24 1981-03-24 Controlling method for strip temperature in cold rolling Pending JPS57156824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56042780A JPS57156824A (en) 1981-03-24 1981-03-24 Controlling method for strip temperature in cold rolling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56042780A JPS57156824A (en) 1981-03-24 1981-03-24 Controlling method for strip temperature in cold rolling

Publications (1)

Publication Number Publication Date
JPS57156824A true JPS57156824A (en) 1982-09-28

Family

ID=12645477

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56042780A Pending JPS57156824A (en) 1981-03-24 1981-03-24 Controlling method for strip temperature in cold rolling

Country Status (1)

Country Link
JP (1) JPS57156824A (en)

Cited By (6)

* 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 On-line cooling method of hot steel plate
JPS6152924A (en) * 1984-08-20 1986-03-15 Kawasaki Steel Corp Method and device for cooling steel material
JPS61253112A (en) * 1985-05-02 1986-11-11 Nippon Steel Corp Control method for cooling steel plate
US5235840A (en) * 1991-12-23 1993-08-17 Hot Rolling Consultants, Ltd. Process to control scale growth and minimize roll wear
US5701775A (en) * 1992-02-24 1997-12-30 Alcan International Limited Process and apparatus for applying and removing liquid coolant to control temperature of continuously moving metal strip
CN108067506A (en) * 2016-11-16 2018-05-25 上海优控科技有限公司 Medium and Heavy Plate Rolling passage dynamic becomes setting control method

Cited By (8)

* 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 On-line cooling method of hot steel plate
JPH0534093B2 (en) * 1983-10-19 1993-05-21 Nippon Steel Corp
JPS6152924A (en) * 1984-08-20 1986-03-15 Kawasaki Steel Corp Method and device for cooling steel material
JPS61253112A (en) * 1985-05-02 1986-11-11 Nippon Steel Corp Control method for cooling steel plate
US5235840A (en) * 1991-12-23 1993-08-17 Hot Rolling Consultants, Ltd. Process to control scale growth and minimize roll wear
US5701775A (en) * 1992-02-24 1997-12-30 Alcan International Limited Process and apparatus for applying and removing liquid coolant to control temperature of continuously moving metal strip
CN108067506A (en) * 2016-11-16 2018-05-25 上海优控科技有限公司 Medium and Heavy Plate Rolling passage dynamic becomes setting control method
CN108067506B (en) * 2016-11-16 2019-09-03 上海优控科技有限公司 Medium and Heavy Plate Rolling passage dynamic becomes setting control method

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