JPS5823501A - Rolling method for bar steel - Google Patents

Rolling method for bar steel

Info

Publication number
JPS5823501A
JPS5823501A JP12260381A JP12260381A JPS5823501A JP S5823501 A JPS5823501 A JP S5823501A JP 12260381 A JP12260381 A JP 12260381A JP 12260381 A JP12260381 A JP 12260381A JP S5823501 A JPS5823501 A JP S5823501A
Authority
JP
Japan
Prior art keywords
rolls
caliber
bar steel
passes
rolling
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
JP12260381A
Other languages
Japanese (ja)
Other versions
JPS6023882B2 (en
Inventor
Tadaaki Yanagisawa
Teruaki Tanaka
Akio Noda
Satoru Takeda
Masataka Inoue
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.)
JFE Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP56122603A priority Critical patent/JPS6023882B2/ja
Publication of JPS5823501A publication Critical patent/JPS5823501A/en
Publication of JPS6023882B2 publication Critical patent/JPS6023882B2/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
    • B21B1/16Metal-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
    • B21B1/18Metal-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

Abstract

PURPOSE:To reduce the original unit of rolls advantageously by considerable decrease in the use of costly caliber rolls by using flat roll passes frequently in reducing of blooms or billets to bar steel, and rolling the bar steel with the caliber roll passes disposed partly. CONSTITUTION:A blank material 8 having a square section is rolled continuously >=2 times with flat rolls 9, 9', 9''. The rolled material 8 is subjected to a process for trimming the sectional shape of the material 8 by a single pass of box type rolls 10 or combined passes of diamond caliber rolls 11 and square caliber rolls 12 repeatedly each time when needed, whereby the section thereof is reduced. In this way, the twists and overturns produced when the material is subjected to continuous passes of 2 times or over with flat rolls are corrected with the caliber roll passes, so that the continuation of the succeeding rolling is made easy. The life of the caliber rolls is remarkably prolonged by the said method and the rolling efficiency for the bar steel is improved considerably.
JP56122603A 1981-08-05 1981-08-05 Expired JPS6023882B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56122603A JPS6023882B2 (en) 1981-08-05 1981-08-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56122603A JPS6023882B2 (en) 1981-08-05 1981-08-05

Publications (2)

Publication Number Publication Date
JPS5823501A true JPS5823501A (en) 1983-02-12
JPS6023882B2 JPS6023882B2 (en) 1985-06-10

Family

ID=14840021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56122603A Expired JPS6023882B2 (en) 1981-08-05 1981-08-05

Country Status (1)

Country Link
JP (1) JPS6023882B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6198962A (en) * 1984-10-22 1986-05-17 Hitachi Ltd Reduction starter
JPS61132201A (en) * 1984-11-30 1986-06-19 Nippon Kokan Kk <Nkk> Rolling method of billet
EP0509204A2 (en) * 1991-04-18 1992-10-21 SKET Schwermaschinenbau Magdeburg GmbH Device for rolling hot rolled bar and wire
US6092408A (en) * 1997-05-12 2000-07-25 Fabris; Mario Steel mill processing by rhombic reversal reduction rolling
JP2009285723A (en) * 2008-06-02 2009-12-10 Sanyo Special Steel Co Ltd Method of manufacturing round steel bar

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ROLL DESIGN AND MILL LAYOUT=1956 *
ROLL PASS DESIGN=1949 *
ROLLS AND ROLLING=1958 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6198962A (en) * 1984-10-22 1986-05-17 Hitachi Ltd Reduction starter
JPH0231790B2 (en) * 1984-10-22 1990-07-16 Hitachi Ltd
JPS61132201A (en) * 1984-11-30 1986-06-19 Nippon Kokan Kk <Nkk> Rolling method of billet
JPH0225681B2 (en) * 1984-11-30 1990-06-05 Nippon Kokan Kk
EP0509204A2 (en) * 1991-04-18 1992-10-21 SKET Schwermaschinenbau Magdeburg GmbH Device for rolling hot rolled bar and wire
US6092408A (en) * 1997-05-12 2000-07-25 Fabris; Mario Steel mill processing by rhombic reversal reduction rolling
JP2009285723A (en) * 2008-06-02 2009-12-10 Sanyo Special Steel Co Ltd Method of manufacturing round steel bar

Also Published As

Publication number Publication date
JPS6023882B2 (en) 1985-06-10

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