JPH01210111A - Plate thickness control method for hot finish rolling - Google Patents

Plate thickness control method for hot finish rolling

Info

Publication number
JPH01210111A
JPH01210111A JP63032880A JP3288088A JPH01210111A JP H01210111 A JPH01210111 A JP H01210111A JP 63032880 A JP63032880 A JP 63032880A JP 3288088 A JP3288088 A JP 3288088A JP H01210111 A JPH01210111 A JP H01210111A
Authority
JP
Japan
Prior art keywords
plate
innermost diameter
rolling
corrected
diameter part
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
JP63032880A
Other languages
Japanese (ja)
Other versions
JPH052404B2 (en
Inventor
Kunio Yoshida
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 JP63032880A priority Critical patent/JPH052404B2/ja
Publication of JPH01210111A publication Critical patent/JPH01210111A/en
Publication of JPH052404B2 publication Critical patent/JPH052404B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B2261/00Product parameters
    • B21B2261/20Temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B2261/00Product parameters
    • B21B2261/22Hardness

Abstract

PURPOSE: To roll a strip into uniformized plate thickness even if the deformation resistance of the innermost diameter is changed stepwise by obtaining the plasticity constant of the sheet bar from plate thicknesses and rolling loads at the inlet and outlet sides, then by obtaining plate temps.
CONSTITUTION: In the stage of finish rolling, the innermost diameter part 1a of the hot sheet bar coil 1, the position of this innermost diameter part 1a is grasped and the plasticity constant of the sheet bar 21 is obtained from the inlet and outlet sides plate thicknesses and the rolling loads, when the innermost diameter part 1a reaches the (i)th stand, then the plate temp. is obtained. Based on this plate temp., an estimated temp. drop pattern of each stand is corrected, the plasticity constant is corrected through these corrected values, and the position of the rolling reduction on and after (i+1)th stands are corrected by a gauge meter equation. Thereby, even if the deformation resistance at the innermost diameter part is changed stepwise, the strip having the uniformized plate thickness is enabled of rolling to contribute to improve the yield rate and quality of the product.
COPYRIGHT: (C)1989,JPO&Japio
JP63032880A 1988-02-17 1988-02-17 Expired - Lifetime JPH052404B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63032880A JPH052404B2 (en) 1988-02-17 1988-02-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63032880A JPH052404B2 (en) 1988-02-17 1988-02-17

Publications (2)

Publication Number Publication Date
JPH01210111A true JPH01210111A (en) 1989-08-23
JPH052404B2 JPH052404B2 (en) 1993-01-12

Family

ID=12371190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63032880A Expired - Lifetime JPH052404B2 (en) 1988-02-17 1988-02-17

Country Status (1)

Country Link
JP (1) JPH052404B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04319013A (en) * 1991-04-18 1992-11-10 Nippon Steel Corp Plate thickness controller using intermediate plate thicknessmeter
JP2009214164A (en) * 2008-03-12 2009-09-24 Nippon Steel Corp Method of predicting deformation resistance of metal strip and method of setting up cold tandem mill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04319013A (en) * 1991-04-18 1992-11-10 Nippon Steel Corp Plate thickness controller using intermediate plate thicknessmeter
JP2009214164A (en) * 2008-03-12 2009-09-24 Nippon Steel Corp Method of predicting deformation resistance of metal strip and method of setting up cold tandem mill

Also Published As

Publication number Publication date
JPH052404B2 (en) 1993-01-12

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