JPS5770014A - Plate-crown controlling device - Google Patents

Plate-crown controlling device

Info

Publication number
JPS5770014A
JPS5770014A JP55146936A JP14693680A JPS5770014A JP S5770014 A JPS5770014 A JP S5770014A JP 55146936 A JP55146936 A JP 55146936A JP 14693680 A JP14693680 A JP 14693680A JP S5770014 A JPS5770014 A JP S5770014A
Authority
JP
Japan
Prior art keywords
plate
crown
computor
lambdah
lambdal
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
JP55146936A
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 JP55146936A priority Critical patent/JPS5770014A/en
Publication of JPS5770014A publication Critical patent/JPS5770014A/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

Landscapes

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

Abstract

PURPOSE:To obtain a realizable desired value of plate-crown, by estimating the upper and lower limit values of a plate-crown, assuming these values are realized in an allowable shape-range, to pre-set the desired value of plate-crown, and by comparing the estimated values of the plate-crown with actual ones to set them again in order to obtain the realizable desired ones with a modificatory device controlled. CONSTITUTION:From a setting device 1, the sheet width b, the sheet thickness h1 at the inlet, the material constant K, etc. of materials 10 to be rolled are inputted to a computor 2, an here, the transverse flow factor eta is computed to be outputted to a computor 3. On the other hand, from the setting device 1, plate-crown ratio C1, shape factor lambda1 at the inlet and the upper limit lambdaH, lower limit lambdaL of an allowable shape at the exit are outputted to the computor 3; and from these results, plate- crown ratios CH, CL, under the condition that said limits lambdaH, lambdaL reach the lambdaH, lambdaL of the allowable shape, are computed. Next, desired crown ratio C0 is compared with CH, CL in a computor 4 and then realizable desired plate-crown ratio CA is determined. The plate-crown modificatory device is controlled so as to obtain the desired plate-crown ratio CA.
JP55146936A 1980-10-22 1980-10-22 Plate-crown controlling device Pending JPS5770014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55146936A JPS5770014A (en) 1980-10-22 1980-10-22 Plate-crown controlling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55146936A JPS5770014A (en) 1980-10-22 1980-10-22 Plate-crown controlling device

Publications (1)

Publication Number Publication Date
JPS5770014A true JPS5770014A (en) 1982-04-30

Family

ID=15418914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55146936A Pending JPS5770014A (en) 1980-10-22 1980-10-22 Plate-crown controlling device

Country Status (1)

Country Link
JP (1) JPS5770014A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60234709A (en) * 1984-05-08 1985-11-21 Ishikawajima Harima Heavy Ind Co Ltd Shape control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60234709A (en) * 1984-05-08 1985-11-21 Ishikawajima Harima Heavy Ind Co Ltd Shape control device
JPH0586290B2 (en) * 1984-05-08 1993-12-10 Ishikawajima Harima Heavy Ind

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