JPS5691905A - Splitting and rolling method - Google Patents

Splitting and rolling method

Info

Publication number
JPS5691905A
JPS5691905A JP17345479A JP17345479A JPS5691905A JP S5691905 A JPS5691905 A JP S5691905A JP 17345479 A JP17345479 A JP 17345479A JP 17345479 A JP17345479 A JP 17345479A JP S5691905 A JPS5691905 A JP S5691905A
Authority
JP
Japan
Prior art keywords
steel bars
caliber
calibers
downward
bending forces
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
JP17345479A
Other languages
Japanese (ja)
Other versions
JPS6260161B2 (en
Inventor
Yasuo Oota
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.)
KYOEI SEIKOU KK
Kyoei Steel Ltd
Original Assignee
KYOEI SEIKOU KK
Kyoei Steel Ltd
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 KYOEI SEIKOU KK, Kyoei Steel Ltd filed Critical KYOEI SEIKOU KK
Priority to JP17345479A priority Critical patent/JPS5691905A/en
Publication of JPS5691905A publication Critical patent/JPS5691905A/en
Publication of JPS6260161B2 publication Critical patent/JPS6260161B2/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
    • 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
    • B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/0815—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 structural sections, i.e. work of special cross-section, e.g. angle steel from flat-rolled products, e.g. by longitudinal shearing
    • 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
    • B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process

Landscapes

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

Abstract

PURPOSE:To reduce the wear of the roll edge, and to surely split the steel ingot, by giving different depths to calibers provided in upper and lower rolling rolls in order to apply upward and downward differently directing bending forces to the rolled steel bars. CONSTITUTION:A billet is charged into the heating furnace to heat it to temperatures required in the rolling work, and this billet is passed through plural stages of rolling rolls and is formed into two or three or more parallel lines of steel bars 2 in a required diameter. Hereupon, the calibers 5a, 5b, are carved in outer circumferences of a couple of upper and lower rolls 3, 4, in an arbitrary stage of plural stages of rolling rolls; in which, the depth of the caliber 5a is made deeper than that of the caliber 5b, and the gravitational center G of the caliber 5a is located within the caliber 5a. Accordingly, when the steel bar 2 passes through the parallelly arranged two calibers 5a, 5b, the steel bars 2a, 2b, connected by a thin walled part, are respectively given different speeds between their upper and lower surfaces, so that upward and downward bending forces are applied to the steel bars 2a, 2b, respectively. These bending forces work as a shearing force on the thin walled connecting part of two steel bars 2a, 2b; as a result, the steel bars 2a, 2b, are split upward and downward respectively.
JP17345479A 1979-12-26 1979-12-26 Splitting and rolling method Granted JPS5691905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17345479A JPS5691905A (en) 1979-12-26 1979-12-26 Splitting and rolling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17345479A JPS5691905A (en) 1979-12-26 1979-12-26 Splitting and rolling method

Publications (2)

Publication Number Publication Date
JPS5691905A true JPS5691905A (en) 1981-07-25
JPS6260161B2 JPS6260161B2 (en) 1987-12-15

Family

ID=15960761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17345479A Granted JPS5691905A (en) 1979-12-26 1979-12-26 Splitting and rolling method

Country Status (1)

Country Link
JP (1) JPS5691905A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5924503A (en) * 1982-07-31 1984-02-08 ストラクチュラル　メタルス，インコーポレーテッド Method and device for simultaneously molding three uniform round metallic bar
JP2013501634A (en) * 2009-08-14 2013-01-17 ハカノカ ゲーエムベーハー Deburring multiple wires for single wire

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5395164A (en) * 1976-12-22 1978-08-19 Do Poritefunichiesukii I Rolling of sectioned billet

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5395164A (en) * 1976-12-22 1978-08-19 Do Poritefunichiesukii I Rolling of sectioned billet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5924503A (en) * 1982-07-31 1984-02-08 ストラクチュラル　メタルス，インコーポレーテッド Method and device for simultaneously molding three uniform round metallic bar
JPH0153121B2 (en) * 1982-07-31 1989-11-13 Daburyu Erii Deiton
JP2013501634A (en) * 2009-08-14 2013-01-17 ハカノカ ゲーエムベーハー Deburring multiple wires for single wire

Also Published As

Publication number Publication date
JPS6260161B2 (en) 1987-12-15

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