JPS62192209A - Plate thickness control method for rolling mill - Google Patents

Plate thickness control method for rolling mill

Info

Publication number
JPS62192209A
JPS62192209A JP61033645A JP3364586A JPS62192209A JP S62192209 A JPS62192209 A JP S62192209A JP 61033645 A JP61033645 A JP 61033645A JP 3364586 A JP3364586 A JP 3364586A JP S62192209 A JPS62192209 A JP S62192209A
Authority
JP
Japan
Prior art keywords
plate thickness
outlet side
value
deviation value
computing element
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
JP61033645A
Other languages
Japanese (ja)
Inventor
Takeshi Katayama
Hideki Ueki
Katsuhiko Kashiba
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 JP61033645A priority Critical patent/JPS62192209A/en
Publication of JPS62192209A publication Critical patent/JPS62192209A/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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/18—Automatic gauge control

Abstract

PURPOSE:To always correct a plate speed meter set in the inlet and the outlet side and to improve the plate thickness control accuracy by tracking an estimated plate thickness deviation value in the outlet side until the position right under an outlet side plate thickness gage and correcting the estimated plate thickness deviation value in the outlet side by calculating an estimation error in the plate thickness deviation value in the outlet side based on a measured plate thickness deviation value in the outlet side. CONSTITUTION:A computing element 20 calculates an estimation error based on the top data of a register 17 and a deviation (a measured value) for an outlet side plate thickness set value 15 from a plate thickness signal processor 19 and then an estimation error after a smoothing using an smooth coefficient delta 21 is obtained. A computing element 22 corrects an estimated plate thickness deviation value in the outlet side based on an estimated plate thickness deviation value in the outlet side previously outputted from a computing element 11 and the error in the outlet side plate thickness estimation value after the smoothing by the computing element 20, obtains a control output DELTAc by a PI operation using control constants (K1, K2, K3, DELTAt1, t1) 23, and sends the output DELTAc to a screwdown controller 24 so as to move the position of a screwdown cylinder 25 and to obtain the outlet side plate thickness estimation value, that is, the target thickness G0.
JP61033645A 1986-02-18 1986-02-18 Plate thickness control method for rolling mill Pending JPS62192209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61033645A JPS62192209A (en) 1986-02-18 1986-02-18 Plate thickness control method for rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61033645A JPS62192209A (en) 1986-02-18 1986-02-18 Plate thickness control method for rolling mill

Publications (1)

Publication Number Publication Date
JPS62192209A true JPS62192209A (en) 1987-08-22

Family

ID=12392178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61033645A Pending JPS62192209A (en) 1986-02-18 1986-02-18 Plate thickness control method for rolling mill

Country Status (1)

Country Link
JP (1) JPS62192209A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0192349A (en) * 1987-09-30 1989-04-11 Sumitomo Metal Ind Ltd Device for controlling molten metal plating amount
JPH07178423A (en) * 1993-12-22 1995-07-18 Nkk Corp Method for estimating and method for controlling thickness on outlet side of rolling mill
US5500790A (en) * 1991-11-21 1996-03-19 Ichikoh Industries, Ltd. Device for confirming optical-axis adjustment of automotive headlamp
JP2019022903A (en) * 2017-07-24 2019-02-14 新日鐵住金株式会社 Tandem type cold rolling facility and plate thickness control method for tandem type cold rolling facility

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57181711A (en) * 1981-05-01 1982-11-09 Kawasaki Steel Corp Automatically controlling method of draft of rolling mill

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57181711A (en) * 1981-05-01 1982-11-09 Kawasaki Steel Corp Automatically controlling method of draft of rolling mill

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0192349A (en) * 1987-09-30 1989-04-11 Sumitomo Metal Ind Ltd Device for controlling molten metal plating amount
US5500790A (en) * 1991-11-21 1996-03-19 Ichikoh Industries, Ltd. Device for confirming optical-axis adjustment of automotive headlamp
JPH07178423A (en) * 1993-12-22 1995-07-18 Nkk Corp Method for estimating and method for controlling thickness on outlet side of rolling mill
JP2019022903A (en) * 2017-07-24 2019-02-14 新日鐵住金株式会社 Tandem type cold rolling facility and plate thickness control method for tandem type cold rolling facility

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