JPS5794412A - Controlling apparatus for shape and crown of sheet in rolling mill - Google Patents

Controlling apparatus for shape and crown of sheet in rolling mill

Info

Publication number
JPS5794412A
JPS5794412A JP55170937A JP17093780A JPS5794412A JP S5794412 A JPS5794412 A JP S5794412A JP 55170937 A JP55170937 A JP 55170937A JP 17093780 A JP17093780 A JP 17093780A JP S5794412 A JPS5794412 A JP S5794412A
Authority
JP
Japan
Prior art keywords
sheet
shape
crown
computor
computing
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
JP55170937A
Other languages
Japanese (ja)
Inventor
Kenichi Yasuda
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55170937A priority Critical patent/JPS5794412A/en
Publication of JPS5794412A publication Critical patent/JPS5794412A/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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2263/00—Shape of product
    • B21B2263/10—Lateral spread defects

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

PURPOSE:To obtain desired values of a sheet crown and a shape of sheet, by estimating a shape of sheet at the time that a set sheet crown based on a lateral flow factor is performed, and determining a desired shape of sheet by adding prescribed rolling conditions to said estimated shape of sheet, thereby controlling a sheet-shape modifying apparatus based on the desired crown and shape of sheet. CONSTITUTION:The titled apparatus is constituted of a device 1 for setting a desired sheet crown at the exit side of a rolling mill, a computor 2 for computing a lateral flow factor, a sheet-shape estimating computor 3 for estimating a shape of sheet at the time that a desired crown ratio is performed, a computor 4 for determining a desired shape of sheet from an estimated shape of sheet, a capability-range computor 5 for computing the upper and lower limits of sheet- shape by the rolling mill's ability, a computor 7 for computing the quantity of sheet-shape to be modified, a computor 8 for computing a modifying quantity of bending force, and provided. The group of sheet-shape modifying devices are controlled in a conventional way based on the desired shape of sheet determined by said devices.
JP55170937A 1980-12-05 1980-12-05 Controlling apparatus for shape and crown of sheet in rolling mill Pending JPS5794412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55170937A JPS5794412A (en) 1980-12-05 1980-12-05 Controlling apparatus for shape and crown of sheet in rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55170937A JPS5794412A (en) 1980-12-05 1980-12-05 Controlling apparatus for shape and crown of sheet in rolling mill

Publications (1)

Publication Number Publication Date
JPS5794412A true JPS5794412A (en) 1982-06-11

Family

ID=15914128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55170937A Pending JPS5794412A (en) 1980-12-05 1980-12-05 Controlling apparatus for shape and crown of sheet in rolling mill

Country Status (1)

Country Link
JP (1) JPS5794412A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939410A (en) * 1982-08-26 1984-03-03 Sumitomo Metal Ind Ltd Rolling method
JPS61238412A (en) * 1985-04-15 1986-10-23 Mitsubishi Electric Corp Apparatus for determining set value of shape manipulated variable in rolling mill

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939410A (en) * 1982-08-26 1984-03-03 Sumitomo Metal Ind Ltd Rolling method
JPS61238412A (en) * 1985-04-15 1986-10-23 Mitsubishi Electric Corp Apparatus for determining set value of shape manipulated variable in rolling mill
JPH0333041B2 (en) * 1985-04-15 1991-05-15 Mitsubishi Electric Corp

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