EP0535767A1 - Train de laminage pour laminer de poutrelles - Google Patents

Train de laminage pour laminer de poutrelles Download PDF

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Publication number
EP0535767A1
EP0535767A1 EP92250251A EP92250251A EP0535767A1 EP 0535767 A1 EP0535767 A1 EP 0535767A1 EP 92250251 A EP92250251 A EP 92250251A EP 92250251 A EP92250251 A EP 92250251A EP 0535767 A1 EP0535767 A1 EP 0535767A1
Authority
EP
European Patent Office
Prior art keywords
rolling
universal
stand
reversing
sizing
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
EP92250251A
Other languages
German (de)
English (en)
Other versions
EP0535767B1 (fr
Inventor
Erich Reth
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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
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Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0535767A1 publication Critical patent/EP0535767A1/fr
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Anticipated expiration legal-status Critical
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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
    • B21B1/088—H- or I-sections
    • 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
    • B21B1/14—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 in a non-continuous process, i.e. at least one reversing stand

Definitions

  • the invention relates to a rolling mill for rolling carrier profiles, consisting of at least one duo-reversing roughing stand and several subsequent universal stands for work and finish rolling, two universal stands and an upsetting stand being combined to form a reversing tandem group.
  • a shaped steel rolling mill with a duo reversing roughing stand and a universal tandem swaging stand combined into a reversing tandem group is known, as well as a universal finishing stand provided on the output side.
  • the shaped steel rolling mill shown in FIG. 1 of this document provides for a pre-weighing in the duo reversing roughing mill in seven to fifteen passes before the carrier preform is passed on to the reversing tandem mill group.
  • the desired profile is largely approximated by repeated rolling in three or five passes and after the last pass into a finished stand introduced after the carrier flanges have been brought to the exact nominal width in an upstream flange upsetting stand.
  • the final universal finish stitch processes the wearer in its final shape.
  • the European patent 02 56 409 wants to improve this state of the art, which is described as complex, and proposes to integrate the universal finishing stand into the reversing tandem stand group. At the same time, it is intended to roll the carrier profile alternately in H-shape and X-shape by appropriately designing the rollers of the universal work stand and the universal finishing stand, the last stitch being rolled in H-shape.
  • the vertical rollers of the universal work stand are slightly double-conical, while the universal finishing stand is equipped with cylindrical vertical rolls.
  • the state of the art specifies the recommended kneading of the flange root area as an advantage of this roller design and procedure.
  • the proposed stand arrangement for the rolling process on this rolling mill reduces the investment outlay of the rolling mill compared to the prior art by dispensing with a universal finishing stand and an upsetting stand.
  • the universal finishing stand is always involved in the deformation of the carrier during the reversing stitches in the reversing tandem group and is therefore subject to the same wear and tear as the universal working stand.
  • the rollers of this universal finishing stand have to be changed frequently due to the wear to be expected if no losses in quality are to be accepted. This will give the stated benefit of the lower construction effort, because the cost savings due to the elimination of the separate finishing stand with associated compression stand are compensated for by the additional roller costs.
  • the present invention is based on the object of creating a rolling train for rolling carrier profiles and a method for rolling these carrier profiles, with which high-quality carrier profiles with exact dimensions can be produced with relatively little investment.
  • a sizing universal stand is arranged in direct connection to the tandem group, the reversible universal stands of the tandem group being provided with double-conical vertical rolls and the sizing universal stand provided for continuous rolling being provided with cylindrical vertical rolls.
  • the invention thus moves the finished stitch of the rolled-out carrier as a smooth stitch into a separate sizing universal frame, which immediately follows the tandem group.
  • This sizing stand is intended for continuous rolling and is opened in the tandem group during the reversing stitch.
  • the rollers of the sizing universal stand are only turned on for the last smoothing stitch in order to carry out the smoothing stitch. In this way, wear in the sizing frame is minimized, while the universal frames of the reversible tandem group are both fully involved in the deformation as working frames.
  • the carrier profile can be divided into several according to the inventive method successive rolling passes with the flanges always facing outwards and the facing flanges can be placed parallel in the last smoothing pass. This means that at the same time as the smoothing stitch in the sizing universal framework, the flanges are bent to the H cross-sectional shape with a slight decrease in stitch.
  • the smooth stitch is preferably carried out with a stitch decrease of 5 to 20 percent.
  • the advantage of the present invention is that, even if the reversing tandem group for reversing rolling of the carrier is followed by a shape-accurate sizing stand, and also if the construction effort compared to EP 02 56 409 B1 is increased, due to the achievable shape retention and the lower wear of the universal stand performing the final stitch, the rolling mill works more economically and achieves better final qualities.
  • the sizing universal scaffolding which carries out only a small number of stitch approvals, can be carried out more easily than the universal working scaffolds.
  • An additional compression frame, as in FIG. 1 described in EP 02 56 409 B1, is not required.
  • the blocks coming from a furnace are pre-rolled in the duo reversing roughing stand 1, for example in seven passes, as is symbolically shown below the duo reversing roughing stand 1 using the arrows.
  • the preformed support profile is then delivered to the reversing tandem scaffold group 2, which consists of the reversible universal work scaffold 3, which is also reversible Universal work scaffold 4 and the compression frame 5 arranged between them.
  • the sizing frame 6 is arranged, which is also a universal frame, but is not reversible.
  • the pre-rolled carrier profile first runs through the universal working scaffold 3, the upsetting scaffold 5 and then the universal working scaffold 4, then passes through the sizing scaffold 6 in continuous operation in order to perform a reversing stitch again to go through the universal work stand 4, the edging stand 5 and the universal work stand 3 in reverse order.
  • the support profile passes through the universal work stand 3, the upsetting stand 5 and the universal work stand 4 and is finished-rolled in the sizing stand 6, which has meanwhile been adjusted to the final profile dimension.
  • the flanges of the support profile in the universal work stands 3 and 4 are placed outside 7a and rolled as a so-called butterfly profile. Only in the last stitch within the sizing frame 6 are the flanges bent outwards placed in parallel, so that the H profile 7b is created. During the last passage through the reversing tandem scaffolding group 2, the deformation stitch on the second universal working scaffold 4 can be omitted, so that the penultimate stitch is an upsetting stitch on the upsetting frame 5.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
EP92250251A 1991-10-02 1992-09-09 Train de laminage pour laminer de poutrelles Revoked EP0535767B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4133072 1991-10-02
DE4133072 1991-10-02

Publications (2)

Publication Number Publication Date
EP0535767A1 true EP0535767A1 (fr) 1993-04-07
EP0535767B1 EP0535767B1 (fr) 1996-02-07

Family

ID=6442120

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92250251A Revoked EP0535767B1 (fr) 1991-10-02 1992-09-09 Train de laminage pour laminer de poutrelles

Country Status (4)

Country Link
US (1) US5343726A (fr)
EP (1) EP0535767B1 (fr)
JP (1) JP3265002B2 (fr)
DE (1) DE59205292D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995029774A1 (fr) * 1994-04-29 1995-11-09 Mannesmann Ag Procede et dispositif pour laminer des poutrelles a partir d'ebauches de profiles
WO1996023608A1 (fr) * 1995-02-02 1996-08-08 Bethlehem Steel Corporation Procede pour realiser des elements de structure a ailes directement a partir de billettes rectangulaires
CN1082404C (zh) * 1996-07-13 2002-04-10 Sms舒路曼-斯玛公司 由粗制坯轧出成品型材的方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19714216A1 (de) * 1997-04-07 1998-10-08 Schloemann Siemag Ag Walzenstraße zum Walzen von Flachstahl
DE19747656A1 (de) * 1997-10-29 1999-05-12 Schloemann Siemag Ag Walzanlage für das Walzen aller Arten von Fertigprofilen
DE10349950A1 (de) * 2003-10-24 2005-05-25 Sms Demag Ag Walzwerk zum Warmwalzen von Metall, insbesondere von Aluminium, sowie Warmwalzverfahren
CN101214494B (zh) * 2007-12-29 2010-12-01 莱芜钢铁集团有限公司 一种磁悬浮列车轨道用异型钢的轧制工艺

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2844433A1 (de) * 1978-10-12 1980-04-30 Schloemann Siemag Ag Walzstrasse zum walzen von schweren traegerprofilen und schienen
EP0348913A2 (fr) * 1988-06-27 1990-01-03 Kawasaki Steel Corporation Procédé de laminage de poutrelles d'acier en H
EP0256409B1 (fr) * 1986-08-16 1990-09-26 Sms Schloemann-Siemag Aktiengesellschaft Procédé de fabrication de profils

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1812248A (en) * 1928-12-29 1931-06-30 William C Oberg Roll
US4366694A (en) * 1980-09-17 1983-01-04 Morgan Construction Company Compact rolling mill
JPH0753283B2 (ja) * 1985-06-04 1995-06-07 住友金属工業株式会社 連続圧延方法
DE3730471A1 (de) * 1987-09-11 1989-03-23 Schloemann Siemag Ag Kompaktwalzwerk und arbeitsverfahren zum walzen von formstahl
JPH0289501A (ja) * 1988-09-27 1990-03-29 Kawasaki Steel Corp 圧延機列

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2844433A1 (de) * 1978-10-12 1980-04-30 Schloemann Siemag Ag Walzstrasse zum walzen von schweren traegerprofilen und schienen
EP0256409B1 (fr) * 1986-08-16 1990-09-26 Sms Schloemann-Siemag Aktiengesellschaft Procédé de fabrication de profils
EP0348913A2 (fr) * 1988-06-27 1990-01-03 Kawasaki Steel Corporation Procédé de laminage de poutrelles d'acier en H

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995029774A1 (fr) * 1994-04-29 1995-11-09 Mannesmann Ag Procede et dispositif pour laminer des poutrelles a partir d'ebauches de profiles
WO1996023608A1 (fr) * 1995-02-02 1996-08-08 Bethlehem Steel Corporation Procede pour realiser des elements de structure a ailes directement a partir de billettes rectangulaires
CN1066353C (zh) * 1995-02-02 2001-05-30 伯利恒钢铁公司 直接由板坯制造凸缘结构型材的方法
CN1082404C (zh) * 1996-07-13 2002-04-10 Sms舒路曼-斯玛公司 由粗制坯轧出成品型材的方法

Also Published As

Publication number Publication date
US5343726A (en) 1994-09-06
JP3265002B2 (ja) 2002-03-11
DE59205292D1 (de) 1996-03-21
EP0535767B1 (fr) 1996-02-07
JPH05200402A (ja) 1993-08-10

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