JPS5747516A - Controlling method for shape of thin sheet - Google Patents

Controlling method for shape of thin sheet

Info

Publication number
JPS5747516A
JPS5747516A JP55123318A JP12331880A JPS5747516A JP S5747516 A JPS5747516 A JP S5747516A JP 55123318 A JP55123318 A JP 55123318A JP 12331880 A JP12331880 A JP 12331880A JP S5747516 A JPS5747516 A JP S5747516A
Authority
JP
Japan
Prior art keywords
shape
sheet
breadth
thin sheet
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
JP55123318A
Other languages
Japanese (ja)
Other versions
JPH0112565B2 (en
Inventor
Susumu Mizukami
Shuichi Hirasaki
Toshiro Okabe
Kazuhiro Hirohata
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.)
JFE Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP55123318A priority Critical patent/JPS5747516A/en
Publication of JPS5747516A publication Critical patent/JPS5747516A/en
Publication of JPH0112565B2 publication Critical patent/JPH0112565B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To control the shape of a thin sheet with a computer of a small capacity, and to obtain a thin sheet with a good shape, by taking the effect of an operation applied to the shape correcting element as an influence factor in the direction of sheet breadth, in a thin sheet rolling mill provided with a shape detector and a shape correcting device.
CONSTITUTION: On the run-out side of a rolling mill, plural shape detectors are arranged along the sheet breadth. The influence of each shape correcting device exerted upon the shape of a thin sheet is obtained for every sheet breadth as an influence factor of each position in the direction of breadth exerted upon the variation of deviation of the elongation percentage. By using this influence factor, the deviation of elongation percentages at each position in the direction of breadth after correcting the sheet shape is predicted before correcting the sheet shape. The difference between a predicted deviation εi of elongation percentages at each position in the direction of sheet breadth and an aimed deviation ai of elongation percentages is evaluated with a shape evaluation function M. On the basis of the result of this evaluation for M=MAX(εi-ai), i=1Wn, the optimum controlling direction and amount of the shape correcting device are decided.
COPYRIGHT: (C)1982,JPO&Japio
JP55123318A 1980-09-05 1980-09-05 Controlling method for shape of thin sheet Granted JPS5747516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55123318A JPS5747516A (en) 1980-09-05 1980-09-05 Controlling method for shape of thin sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55123318A JPS5747516A (en) 1980-09-05 1980-09-05 Controlling method for shape of thin sheet

Publications (2)

Publication Number Publication Date
JPS5747516A true JPS5747516A (en) 1982-03-18
JPH0112565B2 JPH0112565B2 (en) 1989-03-01

Family

ID=14857579

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55123318A Granted JPS5747516A (en) 1980-09-05 1980-09-05 Controlling method for shape of thin sheet

Country Status (1)

Country Link
JP (1) JPS5747516A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59218206A (en) * 1983-05-25 1984-12-08 Nippon Kokan Kk <Nkk> Shape controlling method in thin sheet rolling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59218206A (en) * 1983-05-25 1984-12-08 Nippon Kokan Kk <Nkk> Shape controlling method in thin sheet rolling
JPH0150485B2 (en) * 1983-05-25 1989-10-30 Nippon Kokan Kk

Also Published As

Publication number Publication date
JPH0112565B2 (en) 1989-03-01

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