EP0734792B1 - Groupe de cages de laminoirs universels et procédé pour le laminage d'ébauches de profilés coulées en continu - Google Patents

Groupe de cages de laminoirs universels et procédé pour le laminage d'ébauches de profilés coulées en continu Download PDF

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Publication number
EP0734792B1
EP0734792B1 EP96250040A EP96250040A EP0734792B1 EP 0734792 B1 EP0734792 B1 EP 0734792B1 EP 96250040 A EP96250040 A EP 96250040A EP 96250040 A EP96250040 A EP 96250040A EP 0734792 B1 EP0734792 B1 EP 0734792B1
Authority
EP
European Patent Office
Prior art keywords
universal
group
stand
compression
rolling stands
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.)
Expired - Lifetime
Application number
EP96250040A
Other languages
German (de)
English (en)
Other versions
EP0734792A2 (fr
EP0734792A3 (fr
Inventor
Roland Dr.-Ing. Krengel
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
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0734792A2 publication Critical patent/EP0734792A2/fr
Publication of EP0734792A3 publication Critical patent/EP0734792A3/fr
Application granted granted Critical
Publication of EP0734792B1 publication Critical patent/EP0734792B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/08—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
    • B21B13/10—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane
    • 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
    • B21B1/0886—H- or I-sections using variable-width rolls
    • 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
    • B21B1/46—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 metal immediately subsequent to continuous casting
    • B21B1/466—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 metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B2013/003—Inactive rolling stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/028—Variable-width rolls

Definitions

  • the invention relates to a universal stand group for rolling continuously cast Pre-profiles, consisting of one provided on the input side, in reverse operation working first universal scaffolding, a second provided on the output side Universal scaffold and one arranged between these universal scaffolds Compression scaffolding, with the universal scaffolding group one in front of the first universal scaffolding Arranged compression frame is arranged upstream and the outlet-side universal frame as Universal finishing stand is trained.
  • a generic universal scaffolding group is from the European patent specification 02 65 757 known. Based on the consideration that otherwise usual heavy Rough stands (break down stands) with a possibly high number of Pre-stitches can be omitted if blocks are not deformed into shaped steel, but Immediately cast profiles are used, the later profile Having approximate cross sections, the prior art provides for a preliminary profile used, which already has reinforcements on both sides of a web and as a "dog-bone" profile referred to as.
  • the present invention has therefore set itself the task of the universal scaffolding group with an upstream edging stand for rolling continuously cast profiles improve that without the use of additional scaffolding the uncontrolled Squeeze or close the chamber between the two flanges of the Pre-profile is prevented and thereby the flange height of the pre-cast Pre-profile can be reduced to a greater extent.
  • the invention proposes that the Universal scaffolding group upstream of a compression scaffold as a universal scaffold driven vertical rollers and moving horizontal rollers is formed.
  • the use of a universal scaffold to compress the pre-profiles prevents this Closing the chamber during the compression of the pre-profile height by the in the Chamber engaging horizontal rollers, while reducing the Flange thickness can be made.
  • the introduction of the preliminary profile into the first universal scaffold the universal scaffolding group is no longer a problem; the adjustment of the Pre-profile cross-section at the inlet cross-section of the universal scaffolding group is easy possible.
  • the universal compression stand is because only the vertical rollers are driven, pretty easy; the advantages of the scaffold justify its use instead of one Duo upsetting frame or two upsetting frames.
  • Another advantage of the invention is that pre-profiles with large headroom and one in relation to it Small web thickness when rolling in the universal compression stand against buckling and Bulges are supported.
  • the angle of inclination of the horizontal rollers in the universal compression stand in the area of the angle of inclination Pre-profile flanges or smaller is selected. At such an angle of inclination the engagement and drawing in of the preliminary profile by the rollers of the following The rolling stand is made easier by the flanges being placed outwards.
  • the diameter of the horizontal rolls of the universal upsetting stand is preferred smaller than the vertical roller diameter. This measure will The contact area between the horizontal roller and the preliminary profile is kept as small as possible.
  • the contour of the horizontal rolls and / or the vertical rolls of the universal upsetting stand cylindrical over the entire width of the roll bale is executed.
  • the contour of the roll barrel of the horizontal rolls and / or the vertical rollers of the universal upsetting stand also to the outside variable inclination.
  • the vertical rollers will apply the force to the web when compressing the Reinforced pre-profile height; in addition, the introduction of the preliminary profile in the subsequent universal stand improved because the vertical rollers of the universal stand also have a similarly shaped cone.
  • the horizontal rollers of the universal compression scaffold in its width to different chamber dimensions are adjustable.
  • adjustable rollers are known per se, with them the Adjustment of the roller to different web heights can be made so that the use of the universal compression scaffold can be expanded significantly.
  • the adjustment of the width of the horizontal rollers can be done in a simple manner Spacers are changed, is also the adjustment of the Horizontal roller widths possible mechanically or hydraulically.
  • the Diameter of the middle roll bale of the horizontal rolls of the Universal upsetting stand made smaller than the diameter of the rolled bale edges is. This measure counteracts the phenomenon that high Upsetting amounts of the pre-profile height between the vertical rolls cause a strong thickening of the web and the resulting high horizontal forces when the web contacts occur with the horizontal rollers.
  • the diameter of the middle roll bale of the horizontal rollers is made smaller than the outer edges, so the contact area the horizontal roller with the web of the preliminary profile is reduced.
  • the universal compression scaffold can both be in line with the universal scaffolding group be arranged, as well as laterally offset in a parallel rolling line Universal scaffolding group to be upstream.
  • a method for rolling finished profiles from a preliminary profile by means of an Reversing operation working universal scaffolding group according to the invention is thereby characterized in that the web height and possibly the flange thickness and / or Web thickness in a first upsetting stitch on the universal upsetting frame and below Use of the first universal scaffold and the subsequent upsetting scaffold in is preferably rolled out three passes and in the following roll pass under Use of the universal and compression scaffold of the universal scaffold group at least one Another upsetting stitch is carried out, to which a finish stitch is made using the entire universal scaffold group.
  • the inventive Universal compression stand designated UE in a separate rolling line of the Universal scaffold group is arranged, which consists of the first universal scaffold UR, the Flange upsetting stand HE and the universal finishing stand UF.
  • the Universal upset for roughing the preliminary section 1 is driven Vertical rollers 2 and non-driven horizontal rollers 3 and is equipped possibly operated in reverse operation.
  • the horizontal rollers 3 by spacers 4 in changeable bale width; the angle of inclination of the flanks 5 of the horizontal rolls are largely adapted to the flank angle 6 of the preliminary profile and hold the Chamber of the preliminary profile 1 also open during the upsetting process, so that the preliminary profile can be easily inserted into the first universal scaffold UR.
  • the flanges While the horizontal rollers are closing the chamber during upsetting prevent, the flanges may be reduced in thickness. Height Upsetting amounts can also result in an increase in the web thickness, which counteracts by reducing the web thickness by means of the horizontal rollers becomes.
  • the rolling out of the pre-profile pre-rolled in the universal compression stand in the Universal scaffolding group UR, HE, UF takes place in a conventional manner, with the first Universal scaffold UR and subsequent flange compression scaffold HE in several Stitches are rolled reversely with inclined flanges, while in Finishing stand UF in a last rolling pass with simultaneous straightening of the Flanges the finished profile is created.
  • FIG. 2 shows an arrangement of the universal compression scaffold in line with the Universal scaffolding group shown and at the same time specified in which sequence the finished profile is rolled.
  • the cast pre-profile is recognizable First pre-rolled in the universal upsetting stand UE, whereby flanges and Bar can be reduced.
  • the preliminary profile runs immediately into the first Universal scaffold UR and the subsequent flange upsetting scaffold HE is used in a reversing stitch at least in the first universal scaffold UR and in Flange compression frame UE again deformed to reduce in a last stitch in the Universal compression stand UE with subsequent rolling in the first universal stand UR and flange compression stand HE to be rolled on.
  • the fourth stitch goes through the universal upset in the open state, i.e. without reduction just under Use of the HE flange flattening stand and the first UR universal stand.
  • all scaffolds of the universal scaffolding group UR-HE-UF used to give the profile its final dimensions in the universal finishing stand UF give.
  • the universal compression scaffold according to the invention is also a roughing stand for one Contour group consisting of several universal and flange upsetting devices suitable for the rolling of small pre-profiles cast close to the final dimensions can be considered can.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)

Claims (12)

  1. Groupe de cages universelles pour le laminage de préprofilés (1) coulés en continu, constitué d'une première cage universelle (UR) travaillant de façon réversible prévue du côté d'entrée, d'une seconde cage universelle (UF) prévue du côté de sortie, et d'une cage à refouler (HE) agencée entre ces cages universelles, le groupe de cages universelles étant disposé en aval d'une cage à refouler (UE) agencée avant la première cage universelle et la cage universelle du côté de sortie (UF) étant réalisée comme cage finisseuse universelle,
    caractérisé en ce que la cage à refouler disposée en amont du groupe de cages universelles (UR-HE-UF) est réalisée comme cage à refouler universelle (UE) ayant des cylindres verticaux entraínés (2) et des cylindres horizontaux tournants (3).
  2. Groupe de cages universelles selon la revendication 1,
    caractérisé en ce que l'angle d'inclinaison des cylindres horizontaux (3) dans la cage à refouler universelle (UE) est choisi dans la plage de l'angle d'inclinaison de l'aile (1) du préprofilé ou plus petit.
  3. Groupe de cages universelles selon les revendications 1 et 2,
    caractérisé en ce que le diamètre des cylindres horizontaux (3) de la cage à refouler universelle (UE) est plus petit que le diamètre des cylindres verticaux.
  4. Groupe de cages universelles selon la revendication 1,
    caractérisé en ce que le contour des cylindres horizontaux (3) et/ou des cylindres verticaux (2) de la cage à refouler universelle (UE) est réalisé de façon cylindrique sur toute la largeur du corps de cylindre.
  5. Groupe de cages universelles selon la revendication 1,
    caractérisé en ce que le contour des cylindres horizontaux (3) et/ou des cylindres verticaux (2) de la cage à refouler universelle (UE) est réalisé sur la largeur du corps de cylindre avec une inclinaison variable vers l'extérieur.
  6. Groupe de cages universelles selon les revendications 1 à 5,
    caractérisé en ce que les cylindres horizontaux (3) de la cage à refouler universelle (UE) sont réglables, concernant leur largeur, à différentes dimensions de chambre.
  7. Groupe de cages universelles selon la revendication 6,
    caractérisé en ce que le réglage de la largeur des cylindres horizontaux (3) est effectué par des disques d'écartement (4).
  8. Groupe de cages universelles selon la revendication 6,
    caractérisé en ce que le réglage de la largeur des cylindres horizontaux (3) est effectué de façon mécanique ou hydraulique.
  9. Groupe de cages universelles selon les revendications 1 à 8,
    caractérisé en ce que le diamètre du corps de cylindre central des cylindres horizontaux (3) de la cage à refouler universelle (UE) est plus petit que celui des bords du corps de cylindre.
  10. Groupe de cages universelles selon les revendications 1 à 9,
    caractérisé en ce que la cage à refouler universelle (UE) est agencée en ligne avec le groupe de cages universelles (UR-HE-UF).
  11. Groupe de cages universelles selon les revendications 1 à 9,
    caractérisé en ce que la cage à refouler universelle (UE) est disposée sur une ligne de laminage parallèle de façon latéralement décalée en amont du groupe de cages universelles (UR-HE-UF).
  12. Procédé pour laminer des profilés finis à partir d'un préprofilé au moyen d'un groupe de cages universelles (UR-HE-UF) travaillant de façon réversible selon les revendications 1 et 11,
    caractérisé en ce que la hauteur d'âme et, le cas échéant, l'épaisseur d'aile et/ou l'épaisseur d'âme sont laminées dans une première passe sur la cage à refouler universelle (UE) et en utilisant la première cage universelle (UR) et la cage à refouler universelle suivante (HE) en avantageusement trois passages et, dans la passe de laminage suivante, en utilisant la cage universelle et la cage à refouler (UR-HE) du groupe de cages universelles, il est effectué au moins une autre passe de refoulement, qui est suivie par une passe de finissage en utilisant la totalité du groupe de cages universelles (UR-HE-UF).
EP96250040A 1995-03-30 1996-02-16 Groupe de cages de laminoirs universels et procédé pour le laminage d'ébauches de profilés coulées en continu Expired - Lifetime EP0734792B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19512931 1995-03-30
DE19512931A DE19512931A1 (de) 1995-03-30 1995-03-30 Universalgerüstgruppe und Verfahren zum Walzen von stranggegossenen Vorprofilen

Publications (3)

Publication Number Publication Date
EP0734792A2 EP0734792A2 (fr) 1996-10-02
EP0734792A3 EP0734792A3 (fr) 1997-03-05
EP0734792B1 true EP0734792B1 (fr) 1999-11-24

Family

ID=7758962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96250040A Expired - Lifetime EP0734792B1 (fr) 1995-03-30 1996-02-16 Groupe de cages de laminoirs universels et procédé pour le laminage d'ébauches de profilés coulées en continu

Country Status (5)

Country Link
EP (1) EP0734792B1 (fr)
CN (1) CN1074690C (fr)
DE (2) DE19512931A1 (fr)
ES (1) ES2139308T3 (fr)
TW (1) TW299254B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19722732A1 (de) * 1997-05-30 1998-12-03 Schloemann Siemag Ag Verfahren zum Walzen von Stahlprofilen
IT1397191B1 (it) * 2009-12-01 2013-01-04 Siemens Vai Metals Tech Srl Treno universale reversibile compatto per la produzione di profili medio grandi.
CN102247981B (zh) * 2011-06-01 2013-06-26 中冶赛迪工程技术股份有限公司 型钢轧制生产工艺
CN103071673B (zh) * 2013-02-01 2015-12-02 中冶赛迪工程技术股份有限公司 紧凑式万能立式钢轨轧制方法
CN107427873B (zh) * 2015-03-19 2019-09-13 日本制铁株式会社 H型钢的制造方法
CN105057345B (zh) * 2015-08-21 2017-03-22 天津市中重科技工程有限公司 一种万能轧机劈轧板坯生产h型钢的方法
CN106938280B (zh) * 2016-01-01 2019-04-26 江苏宝强钢结构有限公司 一种生产z型钢带用的平轧辊
CN114749933A (zh) * 2022-04-21 2022-07-15 保定市金桥纺机配件制造有限公司 一种梳棉齿条自动卷圈机

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US410107A (en) * 1889-08-27 Art of rolling flanged beams
DE286488C (fr) *
DE4337555A1 (de) * 1993-11-04 1995-05-11 Schloemann Siemag Ag Verfahren zum Walzen von Fertigprofilen aus einem Vorprofil mittels einer im Reversierbetrieb arbeitenden Walzgerüst-Anordnung
JPS555169A (en) * 1978-06-28 1980-01-16 Sumitomo Metal Ind Ltd Production of beam blank for large h steels from flat bloom and equipment train thereof
JPS58132305A (ja) * 1982-02-02 1983-08-06 Hitachi Zosen Corp Ｈ形鋼用粗鋼片の圧延法
JPS6133701A (ja) * 1984-07-26 1986-02-17 Nippon Kokan Kk <Nkk> Ｈ形鋼のユニバ−サル圧延方法
DE3636478C2 (de) * 1986-10-27 1996-10-31 Schloemann Siemag Ag Verfahren zum Walzen von Fertigprofilen aus einem Vorprofil
US5031435A (en) * 1988-06-16 1991-07-16 Kawasaki Steel Corporation Adjustable width rolls for rolling mill
DE4415762A1 (de) * 1994-04-29 1995-11-02 Mannesmann Ag Verfahren und Vorrichtung zum Walzen von Trägern aus Vorprofilen

Also Published As

Publication number Publication date
CN1135381A (zh) 1996-11-13
DE19512931A1 (de) 1996-10-02
EP0734792A2 (fr) 1996-10-02
ES2139308T3 (es) 2000-02-01
DE59603691D1 (de) 1999-12-30
TW299254B (fr) 1997-03-01
EP0734792A3 (fr) 1997-03-05
CN1074690C (zh) 2001-11-14

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