JPS56126004A - Rolling method for slab - Google Patents

Rolling method for slab

Info

Publication number
JPS56126004A
JPS56126004A JP2897680A JP2897680A JPS56126004A JP S56126004 A JPS56126004 A JP S56126004A JP 2897680 A JP2897680 A JP 2897680A JP 2897680 A JP2897680 A JP 2897680A JP S56126004 A JPS56126004 A JP S56126004A
Authority
JP
Japan
Prior art keywords
pass
numeral
rolling reduction
passes
effected
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.)
Pending
Application number
JP2897680A
Other languages
Japanese (ja)
Inventor
Kazunori Ishii
Osamu Tanda
Shuichi Hamauzu
Tomokiyo Kuroda
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 JP2897680A priority Critical patent/JPS56126004A/en
Publication of JPS56126004A publication Critical patent/JPS56126004A/en
Pending 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

Landscapes

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

Abstract

PURPOSE:To reduce the edge drop in the top of the slab, and to enable the edging work to effect a large breadth reduction in the slab, by making the rolling reduction effected in a pass designated with an even numeral equal to or larger than the rolling reduction effected in the former pass designated with an odd numeral. CONSTITUTION:The edging work is carried out by VSB (vertical scale breaker) through plural passes in which the rolling reduction effected in a pass designated with an even numeral is specified to be larger than that effected in the former pass designated with an odd numeral. Therein, the pass of an even numeral in the totally five passes, for example, means the second pass and the fourth pass; whereas the pass of an odd numeral means the first, the third and the fifth passes. Thereby the former pass of an odd numeral corresponds to the first pass against the second pass and the third pass against the fourth pass. However, the large rolling reduction in the pass of an even numeral and the small rolling reduction in the pass of an odd numeral are not always effected in this manner; in the case of five passes for example, it is possible to carry out the rolling work with a uniform rolling reduction in the first to the fourth passes and a light rolling reduction in the fifth pass for obtaining a sufficient effect.
JP2897680A 1980-03-07 1980-03-07 Rolling method for slab Pending JPS56126004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2897680A JPS56126004A (en) 1980-03-07 1980-03-07 Rolling method for slab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2897680A JPS56126004A (en) 1980-03-07 1980-03-07 Rolling method for slab

Publications (1)

Publication Number Publication Date
JPS56126004A true JPS56126004A (en) 1981-10-02

Family

ID=12263444

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2897680A Pending JPS56126004A (en) 1980-03-07 1980-03-07 Rolling method for slab

Country Status (1)

Country Link
JP (1) JPS56126004A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009178753A (en) * 2008-01-31 2009-08-13 Sumitomo Metal Ind Ltd Manufacturing method of thick steel plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009178753A (en) * 2008-01-31 2009-08-13 Sumitomo Metal Ind Ltd Manufacturing method of thick steel plate

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