CA2071545A1 - Method and apparatus for producing metal bars - Google Patents

Method and apparatus for producing metal bars

Info

Publication number
CA2071545A1
CA2071545A1 CA2071545A CA2071545A CA2071545A1 CA 2071545 A1 CA2071545 A1 CA 2071545A1 CA 2071545 A CA2071545 A CA 2071545A CA 2071545 A CA2071545 A CA 2071545A CA 2071545 A1 CA2071545 A1 CA 2071545A1
Authority
CA
Canada
Prior art keywords
strands
rolling
connecting portions
cutting
metal bars
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
CA2071545A
Other languages
French (fr)
Other versions
CA2071545C (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
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=CA2071545(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to JP2218329A priority Critical patent/JP2590598B2/en
Priority to ES91916223T priority patent/ES2111575T3/en
Priority to CA002071545A priority patent/CA2071545C/en
Priority to PCT/JP1991/001263 priority patent/WO1993005897A1/en
Priority to EP91916223A priority patent/EP0597093B1/en
Application filed by NKK Corp filed Critical NKK Corp
Priority to DE69128432T priority patent/DE69128432T2/en
Publication of CA2071545A1 publication Critical patent/CA2071545A1/en
Publication of CA2071545C publication Critical patent/CA2071545C/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Fee Related 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Shearing Machines (AREA)
  • Wire Processing (AREA)

Abstract

N strands of metal bars are simultaneously produced by subjecting a preformed billet rolled by a roughing rolling train of a bar rolling mill to a finishing rolling;
rolling N pieces of strands connected to each other by means of thin connecting portions; then cutting off both the outer strands along the thin connecting portions by means of a pair of slit rolls; subsequently cutting off both the outer strands out of a plurality of strands not yet cut off at an intermediate portion of the strands along the thin connecting portions by means of a pair of slit rolls; further cutting off all the strands by repeating the cutting of the strands along the thin connecting portions thereof; and producing simultaneously N
strands of metal bars by simultaneously rolling the cut strands.
CA002071545A 1990-08-20 1991-09-21 Method and apparatus for producing metal bars Expired - Fee Related CA2071545C (en)

Priority Applications (6)

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
EP91916223A EP0597093B1 (en) 1990-08-20 1991-09-21 Method of manufacturing metal bars and apparatus therefor
ES91916223T ES2111575T3 (en) 1990-08-20 1991-09-21 PROCEDURE FOR THE MANUFACTURE OF METAL BARS AND ASSOCIATED APPARATUS.
DE69128432T DE69128432T2 (en) 1990-08-20 1991-09-21 METHOD AND DEVICE FOR PRODUCING METAL BARS

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 (2)

Publication Number Publication Date
CA2071545A1 true CA2071545A1 (en) 1993-03-22
CA2071545C CA2071545C (en) 1996-01-30

Family

ID=27169105

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002071545A Expired - Fee Related CA2071545C (en) 1990-08-20 1991-09-21 Method and apparatus for producing metal bars

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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5626044A (en) * 1995-05-19 1997-05-06 Lara-Castro; Manuel Method of producing steel bars from billets

Families Citing this family (8)

* 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
RU2302913C2 (en) * 2004-07-29 2007-07-20 Морган Констракшн Компани Heated billet continuous hot rolling process for receiving large number of final blanks of articles
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
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

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE341049C (en) *
FR956169A (en) * 1939-06-18 1950-01-26
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5626044A (en) * 1995-05-19 1997-05-06 Lara-Castro; Manuel Method of producing steel bars from billets

Also Published As

Publication number Publication date
DE69128432T2 (en) 1998-05-07
EP0597093A1 (en) 1994-05-18
EP0597093B1 (en) 1997-12-10
CA2071545C (en) 1996-01-30
DE69128432D1 (en) 1998-01-22
ES2111575T3 (en) 1998-03-16
JPH04100603A (en) 1992-04-02
WO1993005897A1 (en) 1993-04-01
EP0597093A4 (en) 1994-03-24
JP2590598B2 (en) 1997-03-12

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed