JPS57181708A - Controlling method of crown of strip - Google Patents

Controlling method of crown of strip

Info

Publication number
JPS57181708A
JPS57181708A JP56065282A JP6528281A JPS57181708A JP S57181708 A JPS57181708 A JP S57181708A JP 56065282 A JP56065282 A JP 56065282A JP 6528281 A JP6528281 A JP 6528281A JP S57181708 A JPS57181708 A JP S57181708A
Authority
JP
Japan
Prior art keywords
work rolls
rolls
crowns
axial directions
crown
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
JP56065282A
Other languages
Japanese (ja)
Other versions
JPH0123204B2 (en
Inventor
Masanori Kitahama
Kunio Kitamura
Kenji Kataoka
Kichizaemon Nakagawa
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 JP56065282A priority Critical patent/JPS57181708A/en
Publication of JPS57181708A publication Critical patent/JPS57181708A/en
Publication of JPH0123204B2 publication Critical patent/JPH0123204B2/ja
Granted 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
    • B21B37/40—Control of flatness or profile during rolling of strip, sheets or plates using axial shifting of the rolls
    • 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
    • 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
    • B21B2267/00—Roll parameters
    • B21B2267/18—Roll crown; roll profile
    • B21B2267/20—Ground camber or profile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2269/00—Roll bending or shifting
    • B21B2269/12—Axial shifting the rolls
    • B21B2269/14—Work rolls
    • 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

Abstract

PURPOSE:To effectively perform a crown control of a material to be rolled, by giving initial crowns to work rolls and back-up rolls of a four high rolling mill, having work rolls movable in the axial directions, for hot strip. CONSTITUTION:Work rolls 2 and 3, made to have convex initial crowns of 0.1-0.5mm. formed through <=1/2 length of work rolls in the axial directions, are arranged to overlap the crowns alternately to each other, and are mounted pivotally on roll chocks 6 and 7 movably in the axial directions to roll a material 1 to be rolled, in a rolling mill consisting of work rolls 2, 3 and back-up rolls 12, 13. Convex initial crowns of 0.1-0.5mm. are formed through <=1/2 length of the back-up rolls 12 and 13 in the axial directions and at least on the opposite sides of the crowns of the work rolls 2 and 3, to prevent the generations of a body crown, an edge drop, and a center buildup of the material by shifting the work rolls 2 and 3.
JP56065282A 1981-05-01 1981-05-01 Controlling method of crown of strip Granted JPS57181708A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56065282A JPS57181708A (en) 1981-05-01 1981-05-01 Controlling method of crown of strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56065282A JPS57181708A (en) 1981-05-01 1981-05-01 Controlling method of crown of strip

Publications (2)

Publication Number Publication Date
JPS57181708A true JPS57181708A (en) 1982-11-09
JPH0123204B2 JPH0123204B2 (en) 1989-05-01

Family

ID=13282411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56065282A Granted JPS57181708A (en) 1981-05-01 1981-05-01 Controlling method of crown of strip

Country Status (1)

Country Link
JP (1) JPS57181708A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4669296A (en) * 1982-12-06 1987-06-02 Sms Schloemann-Siemag Ag Method of operating a four-high roll stand
US4823585A (en) * 1984-02-29 1989-04-25 Kawasaki Steel Corporation Hot rolling method
JPH038505A (en) * 1989-06-05 1991-01-16 Kawasaki Steel Corp Multiple roll mill
EP0451874A2 (en) * 1990-04-13 1991-10-16 Hitachi, Ltd. 4-High rolling mill

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733878A (en) * 1971-10-20 1973-05-22 Aluminum Co Of America Roll end relief for rolling mills
JPS5348047A (en) * 1976-10-14 1978-05-01 Nippon Steel Corp Plate crown decrease rolling
JPS5577903A (en) * 1978-12-08 1980-06-12 Kawasaki Steel Corp Rolling method for shape control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733878A (en) * 1971-10-20 1973-05-22 Aluminum Co Of America Roll end relief for rolling mills
JPS5348047A (en) * 1976-10-14 1978-05-01 Nippon Steel Corp Plate crown decrease rolling
JPS5577903A (en) * 1978-12-08 1980-06-12 Kawasaki Steel Corp Rolling method for shape control

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4669296A (en) * 1982-12-06 1987-06-02 Sms Schloemann-Siemag Ag Method of operating a four-high roll stand
US4711116A (en) * 1982-12-06 1987-12-08 Sms Schloemann-Siemag Ag Method of operating a four-high roll stand with bendable and axially shiftable rolls
US4823585A (en) * 1984-02-29 1989-04-25 Kawasaki Steel Corporation Hot rolling method
JPH038505A (en) * 1989-06-05 1991-01-16 Kawasaki Steel Corp Multiple roll mill
EP0451874A2 (en) * 1990-04-13 1991-10-16 Hitachi, Ltd. 4-High rolling mill
US5174144A (en) * 1990-04-13 1992-12-29 Hitachi, Ltd. 4-high rolling mill
EP0451874A3 (en) * 1990-04-13 1993-03-03 Hitachi, Ltd. 4-high rolling mill

Also Published As

Publication number Publication date
JPH0123204B2 (en) 1989-05-01

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