JPS5791801A - Control method for sectional profile of rolled hoop - Google Patents

Control method for sectional profile of rolled hoop

Info

Publication number
JPS5791801A
JPS5791801A JP55166210A JP16621080A JPS5791801A JP S5791801 A JPS5791801 A JP S5791801A JP 55166210 A JP55166210 A JP 55166210A JP 16621080 A JP16621080 A JP 16621080A JP S5791801 A JPS5791801 A JP S5791801A
Authority
JP
Japan
Prior art keywords
work roll
roll
equation
rate
rolled
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
JP55166210A
Other languages
Japanese (ja)
Inventor
Takashi Horikita
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 JP55166210A priority Critical patent/JPS5791801A/en
Publication of JPS5791801A publication Critical patent/JPS5791801A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/025—Quarto, four-high stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B2031/206—Horizontal offset of work rolls

Landscapes

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

Abstract

PURPOSE: To control the sectional profile of a rolled hoop iron with high accuracy by controlling the rate of deviation of the axial center of a work roll in the hoop iron moving direction with respect to the roll axial center of a backup roll in rolling of a hoop iron.
CONSTITUTION: For example, in 4-stage tandem rolling mills, work roll chocks 31, 32 are moved in the arrow direction in the rolled material transfer direction by the transfer of pressure oil from oil hydraulic cylinders 41, 5 to oil hydraulic cylinders 42, 52 or vice versa. An offset rate SH is regulated by such control of oil pressure, whereby a crown change rate ΔC is regulated. As is evident from the equation, the crown change rate ΔC is approximately proportional to the offset rate SH and the denominator is fairly large with respect to the numerator in the equation; therefore, the ΔC is controlled finely by controlling the SH. In the equation, P; the width of the rolled material, LW; the barrel length of the work roll; P; rolling load, RB; the radius of the backup roll, and RW; the radius of the work roll.
COPYRIGHT: (C)1982,JPO&Japio
JP55166210A 1980-11-26 1980-11-26 Control method for sectional profile of rolled hoop Pending JPS5791801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55166210A JPS5791801A (en) 1980-11-26 1980-11-26 Control method for sectional profile of rolled hoop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55166210A JPS5791801A (en) 1980-11-26 1980-11-26 Control method for sectional profile of rolled hoop

Publications (1)

Publication Number Publication Date
JPS5791801A true JPS5791801A (en) 1982-06-08

Family

ID=15827133

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55166210A Pending JPS5791801A (en) 1980-11-26 1980-11-26 Control method for sectional profile of rolled hoop

Country Status (1)

Country Link
JP (1) JPS5791801A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62189802U (en) * 1986-05-19 1987-12-03
JPS63252608A (en) * 1987-04-08 1988-10-19 Hitachi Ltd Method and device for controlling work roll offset position in rolling mill
US5119656A (en) * 1989-09-08 1992-06-09 Hitachi, Ltd. Rolling mill with offset work rolls positioned and controlled by support rolls and method of using same
EP1230991A2 (en) * 2001-02-13 2002-08-14 Hitachi, Ltd. Tandem rolling mill facility and rolling method using the same
JP2020163400A (en) * 2019-03-28 2020-10-08 Ｊｆｅスチール株式会社 Method and apparatus for setting upper limit value of roll offset amount in tandem rolling equipment

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62189802U (en) * 1986-05-19 1987-12-03
JPH0344325Y2 (en) * 1986-05-19 1991-09-18
JPS63252608A (en) * 1987-04-08 1988-10-19 Hitachi Ltd Method and device for controlling work roll offset position in rolling mill
JPH0586289B2 (en) * 1987-04-08 1993-12-10 Hitachi Ltd
US5119656A (en) * 1989-09-08 1992-06-09 Hitachi, Ltd. Rolling mill with offset work rolls positioned and controlled by support rolls and method of using same
EP1230991A2 (en) * 2001-02-13 2002-08-14 Hitachi, Ltd. Tandem rolling mill facility and rolling method using the same
EP1230991A3 (en) * 2001-02-13 2004-09-15 Hitachi, Ltd. Tandem rolling mill facility and rolling method using the same
JP2020163400A (en) * 2019-03-28 2020-10-08 Ｊｆｅスチール株式会社 Method and apparatus for setting upper limit value of roll offset amount in tandem rolling equipment

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