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EP0734792A2 - 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
EP0734792A2
EP0734792A2 EP96250040A EP96250040A EP0734792A2 EP 0734792 A2 EP0734792 A2 EP 0734792A2 EP 96250040 A EP96250040 A EP 96250040A EP 96250040 A EP96250040 A EP 96250040A EP 0734792 A2 EP0734792 A2 EP 0734792A2
Authority
EP
European Patent Office
Prior art keywords
universal
stand
upsetting
group
group according
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
EP96250040A
Other languages
German (de)
English (en)
Other versions
EP0734792A3 (fr
EP0734792B1 (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 a first universal stand provided on the input side, operating in reversing mode, a second universal stand provided on the output side and a compression stand arranged between these universal stands, the upstream stand group being arranged in front of a compression stand arranged in front of the first universal stand and that universal scaffold on the outlet side is designed as a universal finished scaffold.
  • a generic universal scaffold group is known from the European patent specification 02 65 757. Based on the consideration that the usual heavy roughing stands (break down stands) with a possibly high number of roughing passes can be dispensed with, if blocks are not deformed to form steel, but instead continuously cast profiles are used which have cross-sections approximating the later profile, The prior art provides for a preliminary profile to be used which already has reinforcements on both sides of a web and is referred to as a "dog-bone" profile.
  • the present invention has therefore set itself the task of improving the universal stand group with an upstream compression stand for rolling continuously cast profiles so that the use of additional stands prevents the uncontrolled compression or closing of the chamber between the two flanges of the preliminary profile and thereby the flange height of the pre-cast pre-profile can be reduced to a greater extent.
  • the upsetting stand arranged upstream of the universal stand group is designed as a universal stand with driven vertical rolls and rotating horizontal rolls.
  • a universal scaffold for upsetting the pre-profiles prevents the chamber from being closed during the upsetting of the pre-profile height by the horizontal rollers engaging in the chamber, while the flange thickness can be reduced at the same time.
  • the introduction of the preliminary profile into the first universal scaffold of the universal scaffold group no longer presents any difficulties; it is easy to adapt the pre-profile cross-section to the inlet cross-section of the universal scaffolding group.
  • the universal compression stand is relatively simple because only the vertical rollers are driven; the advantages of the scaffold justify its use instead of one duo or two upsetting.
  • Another advantage of the invention is that pre-profiles with large standing heights and a relatively small web thickness are supported against rolling and buckling during rolling in the universal upsetting stand.
  • Tight guiding or a slight reduction in the pre-profile web by the horizontal rollers can prevent the web from buckling.
  • larger amounts of upsetting in the pre-profile height can be realized in one pass, as a result both the number of stitches required and the number of different pre-profile molds can be further minimized.
  • the angle of inclination of the horizontal rolls in the universal upsetting frame is selected in the area of the angle of inclination of the pre-profile flanges or smaller. With such an angle of inclination, the engagement and drawing in of the preliminary profile is facilitated by the rollers of the subsequent roll stand, in that the flanges are placed outwards.
  • the diameter of the horizontal rolls of the universal upsetting stand is preferably smaller than the vertical roll diameter. This measure keeps the contact area between the horizontal roller and the preliminary profile as small as possible.
  • the contour of the horizontal rolls and / or the vertical rolls of the universal upsetting stand is cylindrical over the entire width of the roll bale.
  • the contour of the roll barrel of the horizontal rolls and / or the vertical rolls of the universal upsetting stand can also be provided with an inclination which can vary outwards.
  • the outward tapering cone of the vertical rollers increases the force acting on the web when compressing the pre-profile height; in addition, the introduction of the preliminary profile into the subsequent universal stand is improved, since the vertical rollers of the universal stand also have a similarly shaped cone.
  • the width of the horizontal rolls of the universal upsetting stand can be adjusted to different chamber dimensions.
  • adjustable rollers are known per se, they can be used to adapt the roller to different web heights, so that the use of the universal compression stand can be expanded considerably.
  • the setting of the width of the horizontal rollers can be changed in a simple manner by means of spacers, and the adjustment of the horizontal roller width is also conceivable mechanically or hydraulically.
  • the diameter of the central roll bale of the horizontal rolls of the universal upsetting stand be made smaller than the diameter of the roll bale edges. This measure counteracts the phenomenon that large upsetting amounts of the pre-profile height between the vertical rolls cause a strong thickening of the web and, as a result, high horizontal forces when the web contacts the horizontal rolls. If the diameter of the central roll barrel of the horizontal rolls is made smaller than the outer edges, the contact area of the horizontal roll with the web of the preliminary profile is reduced.
  • the universal compression stand can be arranged both in line with the universal stand group, and can also be arranged laterally offset to the universal stand group in a parallel rolling line.
  • a method for rolling finished profiles from a preliminary profile by means of a universal stand group according to the invention working in reversing operation is characterized in that the web height and optionally the flange thickness and / or web thickness are preferably in a first upsetting stitch on the universal upsetting frame and using the first universal stand and the subsequent upsetting frame is rolled out in three passes and in the following roll pass using the universal and upsetting stand of the universal stands group, at least one further upsetting stitch is carried out, which is followed by a finish stitch using the entire universal stands group.
  • the universal upsetting stand according to the invention being used to adapt the dimensions of the pre-cast pre-profile for the rolling of beams and similar profile shapes in the downstream universal stand group.
  • An uncontrolled compression or closing of the chamber between the two flanges of the pre-profile can not occur even with large reductions, so that with the universal compression scaffold also such pre-profiles can be easily adapted to the Sequence of the universal scaffolding group can be made that differ greatly from the cross section of the preliminary profile.
  • the universal upsetting stand for roughing the roughing section 1 is equipped with driven vertical rolls 2 and non-driven horizontal rolls 3 and is operated in reversing mode if necessary.
  • the horizontal rolls 3 can be changed in the bale width by means of spacer disks 4; the angles of inclination of the flanks 5 of the horizontal rollers are largely adapted to the flank angle 6 of the preliminary section and keep the chamber of the preliminary section 1 open even during the upsetting process, so that the preliminary section can be inserted into the first universal stand UR without any problems.
  • the diameter of the central roll bale of the horizontal rolls 3 is smaller than the outer edges, so that the contact area of the horizontal roll with the web of the preliminary section 1 is smaller. As a result, the forces which may occur on the horizontal rolls when upsetting the preliminary section 1 via the vertical rolls 2 are minimized.
  • the flanges may be reduced in thickness. Large amounts of upsetting can also result in an increase in the web thickness, which is counteracted by reducing the web thickness by means of the horizontal rollers.
  • the pre-rolled section pre-rolled in the universal upset in the universal stand group UR, HE, UF is rolled out in a conventional manner, with several in the first universal stand UR and then the flange upset stand HE Stitches are rolled reversing with inclined flanges, while in the finishing stand UF the finished profile is created in a last roll pass while simultaneously straightening the flanges.
  • FIG. 2 shows an arrangement of the universal compression stand in line with the universal stand group and at the same time indicates the sequence in which the finished profile is rolled.
  • the cast pre-profile is first pre-rolled in the universal upsetting stand UE, whereby flanges and web are simultaneously machined to reduce it.
  • the preliminary profile runs directly into the first universal scaffold UR and the subsequent flange upsetting stand HE, is deformed in a reversing stitch at least in the first universal scaffolding UR and in the flange upsetting stand UE, in order to be formed in a last stitch in the universal upsetting stand UE with subsequent rolling in the first universal scaffolding UR and flange upsetting stand HE to be rolled on.
  • the fourth stitch passes through the universal upright in the open state, i.e. without reduction, only using the HE flange and the first universal scaffold UR.
  • all scaffolds from the UR-HE-UF universal scaffolding group are used to give the profile its final dimensions in the universal finishing scaffold UF.
  • the universal upsetting stand according to the invention is also suitable as a roughing stand for a group of contours consisting of several universal and flange upsetting stands, which can be considered for the rolling of small pre-profiles cast close to the final dimensions.

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)
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
DE19512931A DE19512931A1 (de) 1995-03-30 1995-03-30 Universalgerüstgruppe und Verfahren zum Walzen von stranggegossenen Vorprofilen
DE19512931 1995-03-30

Publications (3)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0881004A2 (fr) * 1997-05-30 1998-12-02 Sms Schloemann-Siemag Aktiengesellschaft Procédé pour laminer des profilés en acier
CN103658167A (zh) * 2013-12-03 2014-03-26 中冶赛迪工程技术股份有限公司 组合式型钢万能轧制生产线及生产方法
CN103658167B (zh) * 2013-12-03 2016-11-30 中冶赛迪工程技术股份有限公司 组合式型钢万能轧制生产线及生产方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP3257597B1 (fr) 2015-03-19 2019-09-18 Nippon Steel Corporation Procédé de fabrication d'un acier en forme de h
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
CN115156289A (zh) * 2022-07-08 2022-10-11 中冶华天南京工程技术有限公司 一种小型h型钢和窄带钢的同线生产方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE286488C (fr) *
US410107A (en) * 1889-08-27 Art of rolling flanged beams
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
EP0265757A2 (fr) * 1986-10-27 1988-05-04 Sms Schloemann-Siemag Aktiengesellschaft Procédé et arrangement pour laminer des profilés de coulée continue
EP0346880A2 (fr) * 1988-06-16 1989-12-20 Kawasaki Steel Corporation Cylindres ajustables en largeur pour laminoir
EP0653253A1 (fr) * 1993-11-04 1995-05-17 Sms Schloemann-Siemag Aktiengesellschaft Procédé pour laminer des profilés finis à partir d'ébanches par un arrangement de cages de laminoir à entraînement reversible
WO1995029774A1 (fr) * 1994-04-29 1995-11-09 Mannesmann Ag Procede et dispositif pour laminer des poutrelles a partir d'ebauches de profiles

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE286488C (fr) *
US410107A (en) * 1889-08-27 Art of rolling flanged beams
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
EP0265757A2 (fr) * 1986-10-27 1988-05-04 Sms Schloemann-Siemag Aktiengesellschaft Procédé et arrangement pour laminer des profilés de coulée continue
EP0346880A2 (fr) * 1988-06-16 1989-12-20 Kawasaki Steel Corporation Cylindres ajustables en largeur pour laminoir
EP0653253A1 (fr) * 1993-11-04 1995-05-17 Sms Schloemann-Siemag Aktiengesellschaft Procédé pour laminer des profilés finis à partir d'ébanches par un arrangement de cages de laminoir à entraînement reversible
WO1995029774A1 (fr) * 1994-04-29 1995-11-09 Mannesmann Ag Procede et dispositif pour laminer des poutrelles a partir d'ebauches de profiles

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 004, no. 029 (M-002), 14.März 1980 & JP-A-55 005169 (SUMITOMO METAL IND LTD), 16.Januar 1980, *
PATENT ABSTRACTS OF JAPAN vol. 007, no. 246 (M-253), 2.November 1983 & JP-A-58 132305 (HITACHI ZOSEN KK), 6.August 1983, *
PATENT ABSTRACTS OF JAPAN vol. 010, no. 189 (M-494), 3.Juli 1986 & JP-A-61 033701 (NIPPON KOKAN KK), 17.Februar 1986, *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0881004A2 (fr) * 1997-05-30 1998-12-02 Sms Schloemann-Siemag Aktiengesellschaft Procédé pour laminer des profilés en acier
EP0881004A3 (fr) * 1997-05-30 2000-12-27 SMS Demag AG Procédé pour laminer des profilés en acier
CN103658167A (zh) * 2013-12-03 2014-03-26 中冶赛迪工程技术股份有限公司 组合式型钢万能轧制生产线及生产方法
CN103658167B (zh) * 2013-12-03 2016-11-30 中冶赛迪工程技术股份有限公司 组合式型钢万能轧制生产线及生产方法

Also Published As

Publication number Publication date
DE59603691D1 (de) 1999-12-30
TW299254B (fr) 1997-03-01
CN1074690C (zh) 2001-11-14
ES2139308T3 (es) 2000-02-01
EP0734792A3 (fr) 1997-03-05
EP0734792B1 (fr) 1999-11-24
DE19512931A1 (de) 1996-10-02
CN1135381A (zh) 1996-11-13

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