JPS63224812A - Automatic plate thickness control method for rolled stock - Google Patents

Automatic plate thickness control method for rolled stock

Info

Publication number
JPS63224812A
JPS63224812A JP62056491A JP5649187A JPS63224812A JP S63224812 A JPS63224812 A JP S63224812A JP 62056491 A JP62056491 A JP 62056491A JP 5649187 A JP5649187 A JP 5649187A JP S63224812 A JPS63224812 A JP S63224812A
Authority
JP
Japan
Prior art keywords
plate thickness
roll gap
arithmetic
cycle
value
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
JP62056491A
Other languages
Japanese (ja)
Inventor
Toshio Sakai
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.)
Furukawa Aluminum Co Ltd
Original Assignee
Furukawa Aluminum 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 Furukawa Aluminum Co Ltd filed Critical Furukawa Aluminum Co Ltd
Priority to JP62056491A priority Critical patent/JPS63224812A/en
Publication of JPS63224812A publication Critical patent/JPS63224812A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/58Roll-force control; Roll-gap control
    • B21B37/62Roll-force control; Roll-gap control by control of a hydraulic adjusting device

Abstract

PURPOSE:To automatically control a plate thickness with high accuracy and with high responsiveness by obtaining the variation of a roll gap correcting value from the deflection between a measured plate thickness and the plate thickness measured at preceding cycle and from a mill constant and a plastic coefficient of a material, then by obtaining a roll gap correcting value. CONSTITUTION:On the rolling mill to roll a rolled stock 1 by work rolls 10, 12 and backup rolls 14, 16, a rolling load Pn of said one pair of work roll 10, 12 is detected by a load cell 18 and a roll gap value S0 is detected by a magnescale 36, then, they are fetched by a sampler 20 in every arithmetic cycle. From these detected values, the plate thickness h(i) at its arithmetic cycle is calculated by an arithmetic circuit 22 and the deviation DELTAh(i) from the plate thickness h(i-1) of the preceding cycle from the memory circuit 24. Based on this deviation DELTAh(i), the mill constant K(i) and the plastic coefficient M(i) of the material, the variation DELTASOP(i) of the roll gap correcting value is calculated by an arithmetic unit 26 and this value is added on the correction value SOP(i-1) of the preceding cycle by an integration circuit 30. According to the roll gap correcting value SOP(i) at this arithmetic cycle obtained by this manner, the roll gap is controlled.
JP62056491A 1987-03-13 1987-03-13 Automatic plate thickness control method for rolled stock Pending JPS63224812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62056491A JPS63224812A (en) 1987-03-13 1987-03-13 Automatic plate thickness control method for rolled stock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62056491A JPS63224812A (en) 1987-03-13 1987-03-13 Automatic plate thickness control method for rolled stock

Publications (1)

Publication Number Publication Date
JPS63224812A true JPS63224812A (en) 1988-09-19

Family

ID=13028560

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62056491A Pending JPS63224812A (en) 1987-03-13 1987-03-13 Automatic plate thickness control method for rolled stock

Country Status (1)

Country Link
JP (1) JPS63224812A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100900675B1 (en) * 2002-10-31 2009-06-01 주식회사 포스코 Strip winding control method with improved roll damage prevention function
JP2015112615A (en) * 2013-12-10 2015-06-22 Jfeスチール株式会社 Plate thickness control device and plate thickness control method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5564914A (en) * 1978-11-10 1980-05-16 Mitsubishi Heavy Ind Ltd Controlling method for sheet gauge in rolling mill

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5564914A (en) * 1978-11-10 1980-05-16 Mitsubishi Heavy Ind Ltd Controlling method for sheet gauge in rolling mill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100900675B1 (en) * 2002-10-31 2009-06-01 주식회사 포스코 Strip winding control method with improved roll damage prevention function
JP2015112615A (en) * 2013-12-10 2015-06-22 Jfeスチール株式会社 Plate thickness control device and plate thickness control method

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