JPH0352705A - Control of sectional profile of rolled stock in hot continuous rolling line - Google Patents

Control of sectional profile of rolled stock in hot continuous rolling line

Info

Publication number
JPH0352705A
JPH0352705A JP1185714A JP18571489A JPH0352705A JP H0352705 A JPH0352705 A JP H0352705A JP 1185714 A JP1185714 A JP 1185714A JP 18571489 A JP18571489 A JP 18571489A JP H0352705 A JPH0352705 A JP H0352705A
Authority
JP
Japan
Prior art keywords
sheet bar
profile
measured
thickness
control
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
JP1185714A
Other languages
Japanese (ja)
Inventor
Susumu Touyama
Junjiro Yamazaki
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 JP1185714A priority Critical patent/JPH0352705A/en
Publication of JPH0352705A publication Critical patent/JPH0352705A/en
Pending 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
    • B21B37/16Control of thickness, width, diameter or other transverse dimensions
    • B21B37/165Control of thickness, width, diameter or other transverse dimensions responsive mainly to the measured thickness of the product
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B38/00Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/04Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-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
    • B21B1/22Metal-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
    • B21B1/24Metal-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
    • B21B1/26Metal-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 by hot-rolling, e.g. Steckel hot mill

Abstract

PURPOSE: To improve accuracy of total crown by measuring sectional wedge quantity of sheet bar on the inlet side of finishing mills, converting into press- down leveling quantity of the stand of each finishing mill and setting the difference in opening of roll on the driving side and the operation side.
CONSTITUTION: The thickness of both end parts of a sheet bar 1 which is rolled with a group 7 of roughing mills is measured with a measuring instrument 8 for wedge and leveling quantity is calculated with an operation device 14 and is reflected and set as the difference in opening of mill roll on the driving side and the operation side of the group 10 of finishing mills. The thickness is measured with laser transmitters 5A, 5A' and receivers 5B, 5B' of the measuring instrument 8 and, because the instrument is movable with rollers 4, 4', the thickness on the optional position of the sheet bar 1 can be measured. By pressing down and correcting the non-symmetric sectional profile in the broadwise direction that is generated on the sheet bar with leveling control of the group of the finishing mills 10, the hot strip of high-accuracy of total crown can be manufactured.
COPYRIGHT: (C)1991,JPO&Japio
JP1185714A 1989-07-18 1989-07-18 Control of sectional profile of rolled stock in hot continuous rolling line Pending JPH0352705A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1185714A JPH0352705A (en) 1989-07-18 1989-07-18 Control of sectional profile of rolled stock in hot continuous rolling line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1185714A JPH0352705A (en) 1989-07-18 1989-07-18 Control of sectional profile of rolled stock in hot continuous rolling line

Publications (1)

Publication Number Publication Date
JPH0352705A true JPH0352705A (en) 1991-03-06

Family

ID=16175567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1185714A Pending JPH0352705A (en) 1989-07-18 1989-07-18 Control of sectional profile of rolled stock in hot continuous rolling line

Country Status (1)

Country Link
JP (1) JPH0352705A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007196261A (en) * 2006-01-26 2007-08-09 Jfe Steel Kk Method and apparatus for detecting/controlling edge drop in cold rolling
CN102500627A (en) * 2011-10-19 2012-06-20 北京金自天正智能控制股份有限公司 Plate width, side shape and side defect measuring instrument and measuring method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007196261A (en) * 2006-01-26 2007-08-09 Jfe Steel Kk Method and apparatus for detecting/controlling edge drop in cold rolling
CN102500627A (en) * 2011-10-19 2012-06-20 北京金自天正智能控制股份有限公司 Plate width, side shape and side defect measuring instrument and measuring method thereof

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