JPS58103901A - Hot rolling method for slab or the like - Google Patents

Hot rolling method for slab or the like

Info

Publication number
JPS58103901A
JPS58103901A JP20001681A JP20001681A JPS58103901A JP S58103901 A JPS58103901 A JP S58103901A JP 20001681 A JP20001681 A JP 20001681A JP 20001681 A JP20001681 A JP 20001681A JP S58103901 A JPS58103901 A JP S58103901A
Authority
JP
Japan
Prior art keywords
rolling
rolls
mill
stage
vertical
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
JP20001681A
Other languages
Japanese (ja)
Other versions
JPS6117561B2 (en
Inventor
Toshifumi Yabuuchi
Sunao Tanimoto
Tsuneo Kazama
Masahiro Nakajima
Original Assignee
Nippon Kokan Kk <Nkk>
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 Kokan Kk <Nkk> filed Critical Nippon Kokan Kk <Nkk>
Priority to JP20001681A priority Critical patent/JPS6117561B2/ja
Publication of JPS58103901A publication Critical patent/JPS58103901A/en
Publication of JPS6117561B2 publication Critical patent/JPS6117561B2/ja
Expired 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 hot roll a slab or the like at a uniform width over the entire length by controlling the gap of the 1st vertical rolls in the advancing direction of a material to be rolled and the peripheral speed of the vertical rolls in succession to horizontal rolling mills respectively in the stage of rolling the preceding end part of the said material and in a steady rolling stage. CONSTITUTION:In the stage of broadside rolling of slab 1 with the 1st vertical rolling mill A, the preceding end part of said material is broadside rolled by expanding the gap of vertical rolls 2A, 2A larger than the prescribed gap in a steady rolling stage, thereafter the rolls 2A, 2A are set at the prescribed gap and the material is subjected to rough rolling by steady rolling. In the stage of rolling the preceding end of the roughly rolled material 1' with a horizontal rolling mill B and the 2nd vertical rolling mill C, the peripheral speed of vertical rolls 2B, 2B is set lower than the peripheral speed of horizontal rolls 5, 5, and after the broadside rolling of the preceding end part of the material 1' with the mill B, said part is forced into the mill C. When the preceding end of the material 1' passes through the mill C, the peripheral speed of the rolls 2B, 2B is set at the peripheral speed in the steady rolling stage and the material is rolled by synchronizing the peripheral speeds of the rolls of the mill A, B and C. As a result, the insufficiency in the width in the preceding and succeeding end parts of the roughly rolled material is decreased considerably as shown in the figure.
JP20001681A 1981-12-14 1981-12-14 Expired JPS6117561B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20001681A JPS6117561B2 (en) 1981-12-14 1981-12-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20001681A JPS6117561B2 (en) 1981-12-14 1981-12-14

Publications (2)

Publication Number Publication Date
JPS58103901A true JPS58103901A (en) 1983-06-21
JPS6117561B2 JPS6117561B2 (en) 1986-05-08

Family

ID=16417394

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20001681A Expired JPS6117561B2 (en) 1981-12-14 1981-12-14

Country Status (1)

Country Link
JP (1) JPS6117561B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61103601A (en) * 1984-10-25 1986-05-22 Kawasaki Steel Corp Edging method of hot slab

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62196962U (en) * 1986-06-04 1987-12-15
JPH0536117Y2 (en) * 1986-12-24 1993-09-13
JPH01102562U (en) * 1987-12-28 1989-07-11

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61103601A (en) * 1984-10-25 1986-05-22 Kawasaki Steel Corp Edging method of hot slab
JPH0683842B2 (en) * 1984-10-25 1994-10-26 川崎製鉄株式会社 Width reduction method of hot slab

Also Published As

Publication number Publication date
JPS6117561B2 (en) 1986-05-08

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