JPS55117501A - Broadside rolling method for metallic slab - Google Patents

Broadside rolling method for metallic slab

Info

Publication number
JPS55117501A
JPS55117501A JP2343379A JP2343379A JPS55117501A JP S55117501 A JPS55117501 A JP S55117501A JP 2343379 A JP2343379 A JP 2343379A JP 2343379 A JP2343379 A JP 2343379A JP S55117501 A JPS55117501 A JP S55117501A
Authority
JP
Japan
Prior art keywords
slab
rolling
broadside
breadth
thickness
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
JP2343379A
Other languages
Japanese (ja)
Other versions
JPS5849321B2 (en
Inventor
Shuji Osada
Hiroe 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 JP2343379A priority Critical patent/JPS5849321B2/en
Publication of JPS55117501A publication Critical patent/JPS55117501A/en
Publication of JPS5849321B2 publication Critical patent/JPS5849321B2/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
    • 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
    • B21B1/02—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B21B1/026—Rolling
    • 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
    • B21B1/224—Edge rolling of flat products
    • 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
    • B21B1/46—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 metal immediately subsequent to continuous casting
    • 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
    • B21B1/02—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B21B2001/028—Slabs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2263/00—Shape of product
    • B21B2263/10—Lateral spread defects
    • B21B2263/12—Dog bone

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

PURPOSE:To perform the rolling work for obtaining good slab free from flaws despite a large transformation of slab breadth, by making the partial thick portion generated through the broadside rolling pass to be approximately equal to the initial slab thickness using the horizontal roll, and then, by again performing the broadside rolling with caliber roll. CONSTITUTION:The technique to change the slab breadth by giving broadside rolling to the continuously cast slab, on purpose to decrease frequency of the mold replacement in the continuous casting, is already achnowledged. This broadside rolling for the slab is performed with the vertical caliber roll; hereupon, if the breadth transformation is to be made large by increasing the rolling reduction of the broadside rolling work, the partial thick portion, so called the dog-bone, is formed at both side planes of the cast billet. If this thickness increase becomes large, it causes generation of surface flaws of the material and increase of the rolling power. After this thickness increased portion is reduced by the horizontal roll to approximately equal to the initial condition of the slab thickness, again the reverse rolling of several passes is carried out with vetical caliber roll to reduce the breadth.
JP2343379A 1979-03-02 1979-03-02 Metal slab width rolling method Expired JPS5849321B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2343379A JPS5849321B2 (en) 1979-03-02 1979-03-02 Metal slab width rolling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2343379A JPS5849321B2 (en) 1979-03-02 1979-03-02 Metal slab width rolling method

Publications (2)

Publication Number Publication Date
JPS55117501A true JPS55117501A (en) 1980-09-09
JPS5849321B2 JPS5849321B2 (en) 1983-11-04

Family

ID=12110359

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2343379A Expired JPS5849321B2 (en) 1979-03-02 1979-03-02 Metal slab width rolling method

Country Status (1)

Country Link
JP (1) JPS5849321B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829501A (en) * 1981-08-14 1983-02-21 Nippon Steel Corp Hot broadside screw down rolling method for slab
JPH026010A (en) * 1988-06-27 1990-01-10 Nippon Steel Corp Hot cross rolling method for metallic slab

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110382797B (en) * 2017-02-17 2022-05-03 Sdr技术股份有限公司 Method for manufacturing column-beam joint structure and column-beam joint structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829501A (en) * 1981-08-14 1983-02-21 Nippon Steel Corp Hot broadside screw down rolling method for slab
JPH026010A (en) * 1988-06-27 1990-01-10 Nippon Steel Corp Hot cross rolling method for metallic slab
JPH0527489B2 (en) * 1988-06-27 1993-04-21 Nippon Steel Corp

Also Published As

Publication number Publication date
JPS5849321B2 (en) 1983-11-04

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