EP0535767B1 - Train de laminage pour laminer de poutrelles - Google Patents

Train de laminage pour laminer de poutrelles Download PDF

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Publication number
EP0535767B1
EP0535767B1 EP92250251A EP92250251A EP0535767B1 EP 0535767 B1 EP0535767 B1 EP 0535767B1 EP 92250251 A EP92250251 A EP 92250251A EP 92250251 A EP92250251 A EP 92250251A EP 0535767 B1 EP0535767 B1 EP 0535767B1
Authority
EP
European Patent Office
Prior art keywords
rolling
stand
universal
reversing
stitch
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.)
Revoked
Application number
EP92250251A
Other languages
German (de)
English (en)
Other versions
EP0535767A1 (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
Application granted granted Critical
Publication of EP0535767B1 publication Critical patent/EP0535767B1/fr
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 one compression stand being put together to form a reversing tandem group and the reversible universal stands of the tandem group with double-conical vertical rolls are provided.
  • EP-A-02 56 409 discloses a shaped steel rolling mill with a double reversing roughing stand and a universal working and flange upsetting stand combined into a reversing tandem group, as well as a universal finishing stand provided on the output side.
  • the shaped steel rolling mill shown in FIG. 1 of this document (closest prior art) provides pre-rolling 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 target width in an upstream flange upsetting stand.
  • the final universal finish stitch processes the wearer in its final shape.
  • 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 sizing universal stand provided for continuous rolling being provided with cylindrical vertical rolls.
  • the finished stitch of the rolled carrier is carried out as a smooth stitch in a separate sizing universal stand 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 support 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 small 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 costs are increased compared to Figure 2 of EP-A-02 56 409, as a result
  • the achievable shape retention and the lower wear of the universal stand performing the final stitch make the rolling mill work more economically and achieve 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-A-02 56 409, is omitted.
  • 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, the reversible one as well Universal work stand 4 and the compression stand 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 in reverse order to go through the universal scaffolding 4, the upsetting frame 5 and the universal scaffolding 3.
  • 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 pass schedule scheme at 7 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.
  • the deformation stitch on the second universal work scaffold 4 can be omitted, so that the penultimate stitch is a compression stitch on the compression scaffold 5.

Landscapes

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

Claims (3)

  1. Train de laminage pour laminer des profilés de support, constitué d'au moins une pré-cage réversible duo (1) et de plusieurs cages universelles suivantes pour le laminage de travail et le laminage de finition (3,4,6), deux cages universelles (3,4) et une cage de refoulement (5) étant assemblées en un groupe tandem à inversion (2) et les cages universelles réversibles (3,4) du groupe tandem (2) étant munies de cylindres verticaux doublement coniques,
    caractérisé en ce que, de façon directement raccordée au groupe tandem (2), il est agencé une cage universelle de calibrage (6), la cage universelle de calibrage (6) prévue vers le cylindre de passage étant munie de cylindres verticaux cylindriques.
  2. Procédé pour laminer des profilés de support sur le train de laminage selon la revendication 1,
    caractérisé en ce que le profilé de support est laminé en plusieurs passes successives de laminage avec des ailes orientées vers l'extérieur et les ailes orientées vers l'extérieur sont orientées parallèlement dans une dernière passe de lissage.
  3. Procédé selon la revendication 2,
    caractérisé en ce que la passe de lissage a lieu pour une réduction de passe de 5 à 20 %.
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 EP0535767A1 (fr) 1993-04-07
EP0535767B1 true 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)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5623845A (en) * 1993-07-01 1997-04-29 Bethlehem Steel Corporation Method for producing flanged structural products directly from slabs
DE4415762A1 (de) * 1994-04-29 1995-11-02 Mannesmann Ag Verfahren und Vorrichtung zum Walzen von Trägern aus Vorprofilen
DE19628369A1 (de) * 1996-07-13 1998-01-15 Schloemann Siemag Ag Verfahren zum Walzen von Fertigprofilen aus einem Vorprofil
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

Family Cites Families (8)

* 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
DE2844433C2 (de) * 1978-10-12 1985-05-09 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzstraße zum wahlweisen Walzen von schweren Trägerprofilen oder Schienen
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
DE3627729C2 (de) * 1986-08-16 1996-03-07 Schloemann Siemag Ag Formstahl-Walzwerk
DE3730471A1 (de) * 1987-09-11 1989-03-23 Schloemann Siemag Ag Kompaktwalzwerk und arbeitsverfahren zum walzen von formstahl
US5009094A (en) * 1988-06-27 1991-04-23 Kawasaki Steel Corporation Method of rolling H-shaped steels
JPH0289501A (ja) * 1988-09-27 1990-03-29 Kawasaki Steel Corp 圧延機列

Also Published As

Publication number Publication date
EP0535767A1 (fr) 1993-04-07
DE59205292D1 (de) 1996-03-21
JP3265002B2 (ja) 2002-03-11
US5343726A (en) 1994-09-06
JPH05200402A (ja) 1993-08-10

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