JPS57103706A - Method for decreasing plate crown - Google Patents

Method for decreasing plate crown

Info

Publication number
JPS57103706A
JPS57103706A JP55181126A JP18112680A JPS57103706A JP S57103706 A JPS57103706 A JP S57103706A JP 55181126 A JP55181126 A JP 55181126A JP 18112680 A JP18112680 A JP 18112680A JP S57103706 A JPS57103706 A JP S57103706A
Authority
JP
Japan
Prior art keywords
rolled
stand
crowns
leveler
plate
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
JP55181126A
Other languages
Japanese (ja)
Other versions
JPS6032522B2 (en
Inventor
Teruo Hiramatsu
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP55181126A priority Critical patent/JPS6032522B2/en
Publication of JPS57103706A publication Critical patent/JPS57103706A/en
Publication of JPS6032522B2 publication Critical patent/JPS6032522B2/en
Expired 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
    • B21B1/26—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 by hot-rolling, e.g. Steckel hot mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0071—Levelling the rolled product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/021—Rolls for sheets or strips
    • B21B2027/022—Rolls having tapered ends
    • 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
    • B21B37/48—Tension control; Compression control

Abstract

PURPOSE: To decrease the crowns of a rolled material effectively and adequately and to improve the quality of the hot rolled material by rolling the rolled material with trapezoidal crown.rolls provided with stands except the final stand, and further leveling the same with a leveler.
CONSTITUTION: A rolled material 5 which is rolled by having some plate crowns in respective finishing stands is rolled with trapezoidal rolls 1 of, for example, a forestage stand Fn-1, whereby the tendencies of the plate crowns are averaged. Further the material 5 rolled with the rolls 1 is leveled with a leveler 2, and the screw-down load during the leveling is detected. The prescribed signal is fed back to the rolling stand on the upper or down stream of the leveler 2, and the constant tension of the material 5 is maintained by controlling 4 the rolling speed of this stand. Thereby, the rate of the plate crowns of the material 5 is decreased and the plate material of good flatness is obtained.
COPYRIGHT: (C)1982,JPO&Japio
JP55181126A 1980-12-20 1980-12-20 Plate crown reduction method Expired JPS6032522B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55181126A JPS6032522B2 (en) 1980-12-20 1980-12-20 Plate crown reduction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55181126A JPS6032522B2 (en) 1980-12-20 1980-12-20 Plate crown reduction method

Publications (2)

Publication Number Publication Date
JPS57103706A true JPS57103706A (en) 1982-06-28
JPS6032522B2 JPS6032522B2 (en) 1985-07-29

Family

ID=16095312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55181126A Expired JPS6032522B2 (en) 1980-12-20 1980-12-20 Plate crown reduction method

Country Status (1)

Country Link
JP (1) JPS6032522B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100950961B1 (en) * 2002-12-23 2010-04-02 주식회사 포스코 Plate leveling-mill and control method
JP2018027553A (en) * 2016-08-17 2018-02-22 Ｊｆｅスチール株式会社 Plate thickness control method and device for rolling machine
CN110947766A (en) * 2019-11-05 2020-04-03 太原科技大学 Tapered roller for weakening edge crack of magnesium alloy plate and rolling method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100950961B1 (en) * 2002-12-23 2010-04-02 주식회사 포스코 Plate leveling-mill and control method
JP2018027553A (en) * 2016-08-17 2018-02-22 Ｊｆｅスチール株式会社 Plate thickness control method and device for rolling machine
CN110947766A (en) * 2019-11-05 2020-04-03 太原科技大学 Tapered roller for weakening edge crack of magnesium alloy plate and rolling method thereof
CN110947766B (en) * 2019-11-05 2021-07-06 太原科技大学 Tapered roller for weakening edge crack of magnesium alloy plate and rolling method thereof

Also Published As

Publication number Publication date
JPS6032522B2 (en) 1985-07-29

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