JPS56119614A - Method for forecasting rolling load of steel sheet - Google Patents

Method for forecasting rolling load of steel sheet

Info

Publication number
JPS56119614A
JPS56119614A JP2299080A JP2299080A JPS56119614A JP S56119614 A JPS56119614 A JP S56119614A JP 2299080 A JP2299080 A JP 2299080A JP 2299080 A JP2299080 A JP 2299080A JP S56119614 A JPS56119614 A JP S56119614A
Authority
JP
Japan
Prior art keywords
formula
deformation
rolling
strain
steel sheet
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
JP2299080A
Other languages
Japanese (ja)
Other versions
JPH0131964B2 (en
Inventor
Yoshiyuki Saito
Motomu 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.)
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 JP2299080A priority Critical patent/JPS56119614A/en
Publication of JPS56119614A publication Critical patent/JPS56119614A/en
Publication of JPH0131964B2 publication Critical patent/JPH0131964B2/ja
Granted legal-status Critical Current

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  • Control Of Metal Rolling (AREA)

Abstract

PURPOSE: To forecast the rolling load in high accuracy, by formulating the strain recovery process with modeled numerical formulas in exercising computer control of the rolling mill.
CONSTITUTION: The accumultaed strain Δε just before each pass is obtained from the actually measured value of rolling load according to the formula I. In the formula, ε is the logarithmic strain, Kmobs and Kmo are respectively the actually measured deformation-resistance and the standard average deformation-resistance, and a3 is a constant. Since the values of ε, Kmobs and Kmo can be computed just after causing the deformation, Δε can be found during the rolling work. The strain recovery process at high temperatures is expressed by the formula II. In the formula, (b), a1Wa3 and N0 are constants, (t) is the time after the deformation, and Tk is the average temperature of the steel sheet. In the rolling work of an ordinary steel sheet or the hot strip rolling work, N0=2 is satisfactorily used and the residual strain percentage λ is expressed by the formula III. In the formula, d0Wd2 are constants. Then, the average deformation-resistance kmcal for the next pass is forecasted by using the formulas I, III, and the rolling load Pcal for the next pass is forecasted by using the formula IV. In the formula, W is the sheet breadth, Qp is the draft percentage function, ld is the projected length of the contact arc.
COPYRIGHT: (C)1981,JPO&Japio
JP2299080A 1980-02-26 1980-02-26 Method for forecasting rolling load of steel sheet Granted JPS56119614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2299080A JPS56119614A (en) 1980-02-26 1980-02-26 Method for forecasting rolling load of steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2299080A JPS56119614A (en) 1980-02-26 1980-02-26 Method for forecasting rolling load of steel sheet

Publications (2)

Publication Number Publication Date
JPS56119614A true JPS56119614A (en) 1981-09-19
JPH0131964B2 JPH0131964B2 (en) 1989-06-28

Family

ID=12097969

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2299080A Granted JPS56119614A (en) 1980-02-26 1980-02-26 Method for forecasting rolling load of steel sheet

Country Status (1)

Country Link
JP (1) JPS56119614A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2783444A1 (en) * 1998-09-21 2000-03-24 Kvaerner Metals Clecim LAMINATION PROCESS OF A METAL PRODUCT

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2783444A1 (en) * 1998-09-21 2000-03-24 Kvaerner Metals Clecim LAMINATION PROCESS OF A METAL PRODUCT
EP0988903A1 (en) * 1998-09-21 2000-03-29 Kvaerner Metals Clecim Method of rolling a metal product
US6526328B1 (en) 1998-09-21 2003-02-25 Vai Clecim Process for rolling a metal product

Also Published As

Publication number Publication date
JPH0131964B2 (en) 1989-06-28

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