JPS5973108A - Method for setting rolling schedule of rolling mill - Google Patents

Method for setting rolling schedule of rolling mill

Info

Publication number
JPS5973108A
JPS5973108A JP57184131A JP18413182A JPS5973108A JP S5973108 A JPS5973108 A JP S5973108A JP 57184131 A JP57184131 A JP 57184131A JP 18413182 A JP18413182 A JP 18413182A JP S5973108 A JPS5973108 A JP S5973108A
Authority
JP
Japan
Prior art keywords
sheet
crown
rolling
width
mill
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
JP57184131A
Other languages
Japanese (ja)
Other versions
JPH062288B2 (en
Inventor
Shigeru Ogawa
Shuichi Hamauzu
Toshiki Yabuta
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 JP57184131A priority Critical patent/JPH062288B2/en
Publication of JPS5973108A publication Critical patent/JPS5973108A/en
Publication of JPH062288B2 publication Critical patent/JPH062288B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B2265/00Forming parameters
    • B21B2265/22Pass schedule

Abstract

PURPOSE:To obtain a setting method applicable for an operation where a formation of rolling units is changed in a wide range, by determining the sheet thickness at the outlet side of each pass basing on a calculating equation for obtaining a deviation of sheet thickness at the outlet side, constituted of a deviation of sheet thickness in the width direction at the time when a distribution of rolling load in the width direction is uniform and said deviation at the inlet side of a mill, in case of obtaining a prescribed sheet thickness by plural number of times of rollings. CONSTITUTION:A model equation of mechanical sheet crown (a sheet thickness distribution in the width direction, expressed by a sign C, which is realized when a load distribution in the width direction is uniform) of a four high mill equipped with a bending device and an euqation of rolling load are combined. Thus the crown C for an optional rolling schedule is calculated. A sheet crown Ch at the outlet side of the mill is estimated by a prescribed equation formed by using the crown C, a crown CH at the inlet side, a draft, a correction factor of sheet crown, and a modified-crown-genetic factor. Further, a sheet shape is estimated by a prescribed equation where an elongation-strain difference is obtained from a shape changing factor, the crowns Ch, CH, and the sheet thicknesses at the inlet and outlet sides. Inversely, the crowns C, Ch and the sheet shape are controlled by changing the rolling schedule.
JP57184131A 1982-10-20 1982-10-20 Rolling mill setting method Expired - Lifetime JPH062288B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57184131A JPH062288B2 (en) 1982-10-20 1982-10-20 Rolling mill setting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57184131A JPH062288B2 (en) 1982-10-20 1982-10-20 Rolling mill setting method

Publications (2)

Publication Number Publication Date
JPS5973108A true JPS5973108A (en) 1984-04-25
JPH062288B2 JPH062288B2 (en) 1994-01-12

Family

ID=16147914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57184131A Expired - Lifetime JPH062288B2 (en) 1982-10-20 1982-10-20 Rolling mill setting method

Country Status (1)

Country Link
JP (1) JPH062288B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976605A (en) * 1982-10-25 1984-05-01 Nippon Steel Corp Method for controlling shape and crown in rolling mill
JPS6130209A (en) * 1984-07-23 1986-02-12 Kawasaki Steel Corp Method for estimating crown in sheet rolling
US5241847A (en) * 1990-04-03 1993-09-07 Kabushiki Kaisha Toshiba Rolling control method and apparatus
JP2006239727A (en) * 2005-03-02 2006-09-14 Jfe Steel Kk Method for rolling hot-rolled steel sheet

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104741387A (en) * 2015-02-28 2015-07-01 太原科技大学 Rolling schedule optimizing method based on dynamic programming method and particle swarm algorithm

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52140450A (en) * 1976-05-19 1977-11-24 Nippon Steel Corp Method of controlling thickness of plate in tandem cold mill
JPS5581008A (en) * 1978-12-15 1980-06-18 Kawasaki Steel Corp Draft schedule determination method of hot strip mill
JPS56163012A (en) * 1980-05-21 1981-12-15 Mitsubishi Electric Corp Calculating method for rolling schedule of tandem mill

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52140450A (en) * 1976-05-19 1977-11-24 Nippon Steel Corp Method of controlling thickness of plate in tandem cold mill
JPS5581008A (en) * 1978-12-15 1980-06-18 Kawasaki Steel Corp Draft schedule determination method of hot strip mill
JPS56163012A (en) * 1980-05-21 1981-12-15 Mitsubishi Electric Corp Calculating method for rolling schedule of tandem mill

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976605A (en) * 1982-10-25 1984-05-01 Nippon Steel Corp Method for controlling shape and crown in rolling mill
JPH0510165B2 (en) * 1982-10-25 1993-02-09 Nippon Steel Corp
JPS6130209A (en) * 1984-07-23 1986-02-12 Kawasaki Steel Corp Method for estimating crown in sheet rolling
JPH062289B2 (en) * 1984-07-23 1994-01-12 川崎製鉄株式会社 Sheet rolling crown prediction method
US5241847A (en) * 1990-04-03 1993-09-07 Kabushiki Kaisha Toshiba Rolling control method and apparatus
DE4190715C1 (en) * 1990-04-03 1995-12-07 Toshiba Kawasaki Kk Rolling control for tandem mill
JP2006239727A (en) * 2005-03-02 2006-09-14 Jfe Steel Kk Method for rolling hot-rolled steel sheet
JP4617929B2 (en) * 2005-03-02 2011-01-26 Jfeスチール株式会社 Hot rolled steel sheet rolling method

Also Published As

Publication number Publication date
JPH062288B2 (en) 1994-01-12

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