EP0597093A4 - Method of manufacturing metal bars and apparatus therefor. - Google Patents

Method of manufacturing metal bars and apparatus therefor.

Info

Publication number
EP0597093A4
EP0597093A4 EP19910916223 EP91916223A EP0597093A4 EP 0597093 A4 EP0597093 A4 EP 0597093A4 EP 19910916223 EP19910916223 EP 19910916223 EP 91916223 A EP91916223 A EP 91916223A EP 0597093 A4 EP0597093 A4 EP 0597093A4
Authority
EP
European Patent Office
Prior art keywords
strands
cut
connecting portions
metal bars
opposite ends
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
EP19910916223
Other languages
German (de)
French (fr)
Other versions
EP0597093A1 (en
EP0597093B1 (en
Inventor
Giichi Matsuo
Akira Sakai
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27169105&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0597093(A4) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Publication of EP0597093A4 publication Critical patent/EP0597093A4/en
Publication of EP0597093A1 publication Critical patent/EP0597093A1/en
Application granted granted Critical
Publication of EP0597093B1 publication Critical patent/EP0597093B1/en
Anticipated expiration legal-status Critical
Revoked 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

Abstract

An intermediate billet, which has been rolled by a rough roll train of a bar rolling mill, is finish rolled to obtain N pieces of strands connected to one another through thin connecting portions. Next, strands at opposite ends are cut off at the connecting portions by slit rolls, and subsequently, strands at opposite ends out of a plurality of intermediate strands, which have not been cut off, are cut off at the connecting portions by the slit rolls. Thenceforth, the cut-off of strands at opposite ends at the connecting portions is repeated, whereby all of the strands are cut off at the connecting portions by the slit rolls, and subsequently, the strands thus cut off are simultaneously rolled, to thereby manufacture N pieces of metal bars at the same time.
EP91916223A 1990-08-20 1991-09-21 Method of manufacturing metal bars and apparatus therefor Revoked EP0597093B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2218329A JP2590598B2 (en) 1990-08-20 1990-08-20 Method and apparatus for simultaneously producing at least four metal rods from one billet
CA002071545A CA2071545C (en) 1990-08-20 1991-09-21 Method and apparatus for producing metal bars
PCT/JP1991/001263 WO1993005897A1 (en) 1990-08-20 1991-09-21 Method of manufacturing metal bars and apparatus therefor

Publications (3)

Publication Number Publication Date
EP0597093A4 true EP0597093A4 (en) 1994-03-24
EP0597093A1 EP0597093A1 (en) 1994-05-18
EP0597093B1 EP0597093B1 (en) 1997-12-10

Family

ID=27169105

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91916223A Revoked EP0597093B1 (en) 1990-08-20 1991-09-21 Method of manufacturing metal bars and apparatus therefor

Country Status (6)

Country Link
EP (1) EP0597093B1 (en)
JP (1) JP2590598B2 (en)
CA (1) CA2071545C (en)
DE (1) DE69128432T2 (en)
ES (1) ES2111575T3 (en)
WO (1) WO1993005897A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2630067B2 (en) * 1991-09-21 1997-07-16 日本鋼管株式会社 Manufacturing method and apparatus for metal bars
AU3064092A (en) * 1991-11-04 1993-06-07 Structural Metals, Inc. Method and apparatus for simultaneously forming four metal rounds
IT1260567B (en) * 1992-06-30 1996-04-16 Danieli Off Mecc PROCEDURE FOR GETTING HOT SINGLE ROUND PROFILES FROM UNIQUE HOT MULTI-PROFILE ELEMENTS AND RELATED DEVICE
US5626044A (en) * 1995-05-19 1997-05-06 Lara-Castro; Manuel Method of producing steel bars from billets
US7191628B2 (en) * 2004-07-29 2007-03-20 Morgan Construction Company Method of continuously hot rolling a heated billet into a plurality of finished products
BRPI0503101B8 (en) * 2004-07-29 2016-09-13 Morgan Construction Co continuous rolling method of an ingot in finished products of different sizes
CN105032936B (en) * 2015-06-29 2017-11-07 四川省达州钢铁集团有限责任公司 A kind of slit rolling process
CN110280591B (en) * 2019-06-26 2020-09-11 安阳钢铁股份有限公司 Multi-line segmentation rolling center line processing method for bar production controlled rolling process
CN112404131A (en) * 2020-10-30 2021-02-26 张家港宏昌钢板有限公司 Method for controlling strip uniformity of cutting pass of deformed steel bar

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE341049C (en) *
DE920362C (en) * 1939-06-18 1954-11-22 Siegfried Dr-Ing E H Junghans Process and system for the production of metal semi-finished products of various types (wires, bars, rods, plates, strips, sheets or the like)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6018241B2 (en) * 1979-12-07 1985-05-09 新日本製鐵株式会社 Multi-width division method of slab
JPS591001A (en) * 1982-06-28 1984-01-06 Showa Kogyo Kk Multiple-pieces rolling method of steel bar
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
JPS6092001A (en) * 1983-10-27 1985-05-23 Nippon Kokan Kk <Nkk> Production of bar steel by slitting of multi-striped blank material and device for slitting multi-striped blank material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE341049C (en) *
DE920362C (en) * 1939-06-18 1954-11-22 Siegfried Dr-Ing E H Junghans Process and system for the production of metal semi-finished products of various types (wires, bars, rods, plates, strips, sheets or the like)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9305897A1 *

Also Published As

Publication number Publication date
JP2590598B2 (en) 1997-03-12
ES2111575T3 (en) 1998-03-16
EP0597093A1 (en) 1994-05-18
CA2071545A1 (en) 1993-03-22
EP0597093B1 (en) 1997-12-10
DE69128432T2 (en) 1998-05-07
JPH04100603A (en) 1992-04-02
DE69128432D1 (en) 1998-01-22
WO1993005897A1 (en) 1993-04-01
CA2071545C (en) 1996-01-30

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