JPS57156803A - Rolling method for slab - Google Patents

Rolling method for slab

Info

Publication number
JPS57156803A
JPS57156803A JP4039781A JP4039781A JPS57156803A JP S57156803 A JPS57156803 A JP S57156803A JP 4039781 A JP4039781 A JP 4039781A JP 4039781 A JP4039781 A JP 4039781A JP S57156803 A JPS57156803 A JP S57156803A
Authority
JP
Japan
Prior art keywords
slab
broadside
rolls
rolling
end 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
JP4039781A
Other languages
Japanese (ja)
Inventor
Ryoji Terakado
Akiichi Nakajima
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 JP4039781A priority Critical patent/JPS57156803A/en
Publication of JPS57156803A publication Critical patent/JPS57156803A/en
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B21B1/02Metal-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 heavy work, e.g. ingots, slabs, blooms billets, in which the cross-sectional form is unimportant Rolling combined with forging or pressing
    • B21B1/026Rolling

Abstract

PURPOSE:To provide plane shapes in arbitrary width directions to the end part of a slab in the stage of broadside rolling of the slab by stopping vertical rolls in the end part of the slab, giving broadside screw-down, and driving the vertical rolls at a constant broadside draft in parts other than the end part. CONSTITUTION:In the stage of hot rolling with vertical rolls 2, the leading end of a slab is screwed down broadside by the rolls 2 in a stopped state, thence the screw-down of the rolls 2 is released. Following to this, the trailing end of the slab 1 is screwed down broadside by the rolls in a stopped state. Following to this, the rolls are set at the same broadside draft over the entire length except the leading and trailing ends of the slab 1, and the rolls 2 are driven to roll the slab broadside. According to this method, the yield in the width changing rolling of the slab, the accuracy of the strip width, and the passing characteristic of rolling mills are improved.
JP4039781A 1981-03-23 1981-03-23 Rolling method for slab Granted JPS57156803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4039781A JPS57156803A (en) 1981-03-23 1981-03-23 Rolling method for slab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4039781A JPS57156803A (en) 1981-03-23 1981-03-23 Rolling method for slab

Publications (1)

Publication Number Publication Date
JPS57156803A true JPS57156803A (en) 1982-09-28

Family

ID=12579526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4039781A Granted JPS57156803A (en) 1981-03-23 1981-03-23 Rolling method for slab

Country Status (1)

Country Link
JP (1) JPS57156803A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62166045A (en) * 1986-01-17 1987-07-22 Ishikawajima Harima Heavy Ind Co Ltd Forming method for plate width by press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62166045A (en) * 1986-01-17 1987-07-22 Ishikawajima Harima Heavy Ind Co Ltd Forming method for plate width by press
JPH0469001B2 (en) * 1986-01-17 1992-11-05 Ishikawajima Harima Heavy Ind

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