JPH02211907A - Sheet thickness control method for continuous hot rolling mill - Google Patents

Sheet thickness control method for continuous hot rolling mill

Info

Publication number
JPH02211907A
JPH02211907A JP1031867A JP3186789A JPH02211907A JP H02211907 A JPH02211907 A JP H02211907A JP 1031867 A JP1031867 A JP 1031867A JP 3186789 A JP3186789 A JP 3186789A JP H02211907 A JPH02211907 A JP H02211907A
Authority
JP
Japan
Prior art keywords
thickness
computing element
actually measured
thickness deviation
deviation
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
JP1031867A
Other languages
Japanese (ja)
Other versions
JPH0585249B2 (en
Inventor
Kazuyoshi Kimura
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 JP1031867A priority Critical patent/JPH0585249B2/ja
Publication of JPH02211907A publication Critical patent/JPH02211907A/en
Publication of JPH0585249B2 publication Critical patent/JPH0585249B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/165—Control of thickness, width, diameter or other transverse dimensions responsive mainly to the measured thickness of the product

Abstract

PURPOSE:To control sheet thicknesses with high accuracy by providing thickness gages and thermometers between rolling stands and correcting the roll gaps and roll circumferential speeds of downstream stands by using the measured sheet thicknesses and material temps. CONSTITUTION:The actually measured values of the sheet thickness and material temp. are detected by the thickness gage 5 and the thermometer 6 at the point of the time when a material 1 to be rolled arrives at the outlet side of the 4th stand 2d. The actually measured value of the thickness is inputted to a thickness deviation computing element 8 and the actually measured value of the material temp. is inputted to a computing element 7. The computing element 7 calculates a temp. deviation and inputs it to the thickness deviation computing element 8. The computing element 8 calculates the thickness deviation between the target thickness value and actually measured thickness on the outlet side of the 4th stand 2d and further calculates the thickness deviation on the outlet side of the 5th stand 2e by these values and the predicted value of the material temp. inputted from the computing element 7. The thickness deviation is inputted to a roll gap correction rate computing element 9 which calculates the reduction correction rates of the stands 2f, 2g. The correction rates of the circumferential speeds are determined by a roll circumferential speed computing element 10 from the actually measured values of the thickness deviation the thickness deviation calculated by the computing element 8 and the rotating speeds of driving motors 4e to 4g are thereby corrected.
JP1031867A 1989-02-09 1989-02-09 Expired - Fee Related JPH0585249B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1031867A JPH0585249B2 (en) 1989-02-09 1989-02-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1031867A JPH0585249B2 (en) 1989-02-09 1989-02-09

Publications (2)

Publication Number Publication Date
JPH02211907A true JPH02211907A (en) 1990-08-23
JPH0585249B2 JPH0585249B2 (en) 1993-12-06

Family

ID=12342997

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1031867A Expired - Fee Related JPH0585249B2 (en) 1989-02-09 1989-02-09

Country Status (1)

Country Link
JP (1) JPH0585249B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020051522A (en) * 2000-12-22 2002-06-29 이구택 A method of calibrating roll gap of rolling machine
CN106984651A (en) * 2017-05-26 2017-07-28 江苏省沙钢钢铁研究院有限公司 A kind of on-line control system for improving rolled piece thickness control accuracy

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58218317A (en) * 1982-06-14 1983-12-19 Sumitomo Metal Ind Ltd Method for dimension control in hot state in blooming
JPS59141309A (en) * 1983-02-03 1984-08-14 Sumitomo Metal Ind Ltd Method and device for measuring sheet thickness in hot rolling
JPS60240328A (en) * 1984-05-14 1985-11-29 Kawasaki Steel Corp Controlling device of plate thickness in hot finishing mill
JPH0242001A (en) * 1988-08-02 1990-02-13 Kansai Paint Co Ltd Preservation of cut flower
JPH0555205A (en) * 1991-08-26 1993-03-05 Sony Corp Semiconductor device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58218317A (en) * 1982-06-14 1983-12-19 Sumitomo Metal Ind Ltd Method for dimension control in hot state in blooming
JPS59141309A (en) * 1983-02-03 1984-08-14 Sumitomo Metal Ind Ltd Method and device for measuring sheet thickness in hot rolling
JPS60240328A (en) * 1984-05-14 1985-11-29 Kawasaki Steel Corp Controlling device of plate thickness in hot finishing mill
JPH0242001A (en) * 1988-08-02 1990-02-13 Kansai Paint Co Ltd Preservation of cut flower
JPH0555205A (en) * 1991-08-26 1993-03-05 Sony Corp Semiconductor device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020051522A (en) * 2000-12-22 2002-06-29 이구택 A method of calibrating roll gap of rolling machine
CN106984651A (en) * 2017-05-26 2017-07-28 江苏省沙钢钢铁研究院有限公司 A kind of on-line control system for improving rolled piece thickness control accuracy

Also Published As

Publication number Publication date
JPH0585249B2 (en) 1993-12-06

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