JPS551916A - Method and apparatus for controlling coiling temperature of hot rolling mill - Google Patents

Method and apparatus for controlling coiling temperature of hot rolling mill

Info

Publication number
JPS551916A
JPS551916A JP7386378A JP7386378A JPS551916A JP S551916 A JPS551916 A JP S551916A JP 7386378 A JP7386378 A JP 7386378A JP 7386378 A JP7386378 A JP 7386378A JP S551916 A JPS551916 A JP S551916A
Authority
JP
Japan
Prior art keywords
steel sheet
valves
controller
necessary number
coiling temperature
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
JP7386378A
Other languages
Japanese (ja)
Other versions
JPS632682B2 (en
Inventor
Yoshiro Seki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7386378A priority Critical patent/JPS551916A/en
Publication of JPS551916A publication Critical patent/JPS551916A/en
Publication of JPS632682B2 publication Critical patent/JPS632682B2/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
    • 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

Abstract

PURPOSE: To exactly cool the steel sheet to the aim coiling temperature, in case of cooling the hot rolled steel sheet to the coiling temperature, by controlling the amount of cooling water with the cooling water rate controller and the computer for necessary number of valves, depending on the thickness of steel sheet and the passing speed of steel sheet.
CONSTITUTION: Before the rolled steel sheet 6 passes through the hot finishing mill 5, the thickness and the passing speed of the steel sheet 6 are received from another computer. From these data, the optimum water rate density of the cooling water for the steel sheet 6 is operated and set. The result of above operation is inputted to the controller 13 for the necessary number of valves and the flow rate controller 16. Next, when the steel sheet 6 passes over the finishing mill 5, the speed, temperature and thickness of the steel sheet 6 are measured by each of the speed mater 7, the finishing temperature meter 9, and the thcikness gauge 8; then, the necessary number of valves 4 is computed by the computer 12 for the necessary number of valves. This number of valves is inputted to the valve controller 13 and the flow rate controller 16. The valve controller 13 controls the opening of the valve 4, and the flow rate controller 16 controls the flow rate limiter 14 depending on the necessary number of valves. According to this method, the steel sheet is high accurately cooled to the aim coiling temperature with the appropriate rate of cooling water.
COPYRIGHT: (C)1980,JPO&Japio
JP7386378A 1978-06-19 1978-06-19 Method and apparatus for controlling coiling temperature of hot rolling mill Granted JPS551916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7386378A JPS551916A (en) 1978-06-19 1978-06-19 Method and apparatus for controlling coiling temperature of hot rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7386378A JPS551916A (en) 1978-06-19 1978-06-19 Method and apparatus for controlling coiling temperature of hot rolling mill

Publications (2)

Publication Number Publication Date
JPS551916A true JPS551916A (en) 1980-01-09
JPS632682B2 JPS632682B2 (en) 1988-01-20

Family

ID=13530426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7386378A Granted JPS551916A (en) 1978-06-19 1978-06-19 Method and apparatus for controlling coiling temperature of hot rolling mill

Country Status (1)

Country Link
JP (1) JPS551916A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104070075A (en) * 2014-06-04 2014-10-01 北京中冶设备研究设计总院有限公司 Laminar cooling process control device and method for hot rolled strip steel
US11745237B2 (en) 2018-03-12 2023-09-05 Sms Group Gmbh Cooling unit of a laminar cooling device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104070075A (en) * 2014-06-04 2014-10-01 北京中冶设备研究设计总院有限公司 Laminar cooling process control device and method for hot rolled strip steel
US11745237B2 (en) 2018-03-12 2023-09-05 Sms Group Gmbh Cooling unit of a laminar cooling device

Also Published As

Publication number Publication date
JPS632682B2 (en) 1988-01-20

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