EP0345241B2 - Verfahren zum Herstellen eines gewalzten Stahlprofils mit einem gewellten Teil und Einrichtung, bestimmt für dieses Verfahren - Google Patents

Verfahren zum Herstellen eines gewalzten Stahlprofils mit einem gewellten Teil und Einrichtung, bestimmt für dieses Verfahren Download PDF

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Publication number
EP0345241B2
EP0345241B2 EP89870077A EP89870077A EP0345241B2 EP 0345241 B2 EP0345241 B2 EP 0345241B2 EP 89870077 A EP89870077 A EP 89870077A EP 89870077 A EP89870077 A EP 89870077A EP 0345241 B2 EP0345241 B2 EP 0345241B2
Authority
EP
European Patent Office
Prior art keywords
section
rollers
corrugated
over
folding
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
EP89870077A
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English (en)
French (fr)
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EP0345241A1 (de
EP0345241B1 (de
Inventor
Jean Marcel Julien Ecrepont
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.)
Profilarbed SA
Original Assignee
Profilarbed SA
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Publication date
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Application filed by Profilarbed SA filed Critical Profilarbed SA
Priority to AT89870077T priority Critical patent/ATE73515T1/de
Publication of EP0345241A1 publication Critical patent/EP0345241A1/de
Application granted granted Critical
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Publication of EP0345241B2 publication Critical patent/EP0345241B2/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
    • B21D3/05—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes rectangular to the path of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
    • B21D47/01—Making rigid structural elements or units, e.g. honeycomb structures beams or pillars
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0421—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section comprising one single unitary part
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/0434—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the open cross-section free of enclosed cavities
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0452—H- or I-shaped

Definitions

  • the present invention relates to a process for the manufacture of laminated sections such as a U or a beam, more particularly an I-beam, comprising a corrugated part in particular a wing or a core.
  • an I-beam having a corrugated core welded to the flanges.
  • a manufacturing process in which a flat core is welded to a pair of flanges and the beam thus formed passes between two cylinders stamping the soul of the beam in a desired manner.
  • a beam of the aforementioned type is however subjected to significant internal stresses. Indeed, the weld creates tensions in the beam which risk deforming it and / or warping the soles.
  • the rolling of a part of the core implies an elongation of the latter with as a consequence a reduction in its thickness.
  • This also results in high tensions on the welds between the core and the flanges and internal tensions in the core, given the differential deformations.
  • These tensions also risk deforming the finished beam and / or warping it.
  • these tensions can have an unfavorable influence on the behavior of the beam and in particular on its mechanical resistance to the various forces to which it may be subjected during its use.
  • this process necessarily involves a weldable steel.
  • Document LU-A-83 044 discloses a method of manufacturing an I-beam, with a corrugated core in its middle, according to which corrugations are formed in a median part of the core of an ordinary I-beam finished by means of two cylinders which mesh in a complementary manner.
  • the increase in the developed length of the corrugated core from the straight length of a flat core before formation of the corrugations is ensured by the reduction in the thickness of the core under the effect of the wave formation work.
  • the I-beam with corrugated core is obtained from an ordinary finished beam and this by means of one or more rolling operations between two opposite structured cylinders.
  • the additional length is provided by the reduction of the thickness of the core thanks to the action of two structured cylinders, which obviously causes internal tensions and a significant hardening of the material and, therefore, a camber or a twist of the beam in 1.
  • the holder of the aforementioned patent attempts to remedy this drawback by forming the corrugations in the core in two or more passes.
  • the problem of internal tensions is not at all resolved and, moreover, the process is quite expensive.
  • the document FR-A-744 933 discloses metal sections with a locally reduced core section, obtained by simple rolling.
  • GB-A-1,596,636 describes a method and an apparatus for profiling a sheet of material and preferably a thin metal sheet. The method consists first of all in causing an elongation of the central part so as to form an indefinite undulation.
  • the second stage of the process consists in subjecting the sheet obtained in the first stage to deformation rolls (embossing rolls) in order to produce a deep design.
  • the latter seeks to provide a simple method for the manufacture of a profile of the above-mentioned type, and of a cost practically equivalent to that of a normal beam.
  • Another object of the present invention is to provide a method of manufacturing a profile of the aforementioned type which does not have the drawbacks of the methods known in the prior art and which allows, more particularly, the easy manufacture of laminated profiles comprising a corrugated part which presents a minimum of residual tensions and internal stresses.
  • the invention aims to provide an installation of a new type for the manufacture of said profiles.
  • the laminated profile treated in accordance with the present invention is particularly resistant in particular to bending and buckling. As a result, for a desired mechanical strength, the weight of said profile can be reduced. Furthermore, given the simplicity of the process and the various steps used, the price of the profile obtained is lower than that of other known types.
  • the method of the invention makes it possible to obtain a profile, a part of which has an undulation without the individual stresses or the internal tensions being significant. Indeed, during the passage of the blank obtained in the first step of the process between two cylinders or rollers, one of which at less has a larger diameter over part of its length, the space between the two cylinders or rollers is therefore reduced locally The local rolling of the core thus obtained, over a distance less than its height between the flanges, prevents the creep of said soles. In addition, unwanted wing deformations are avoided.
  • the percentage of additional elongation to be given to the portion of the profile part to be corrugated is substantially equal to the percentage of excess length of the corrugation desired relative to the straight line.
  • the shaping is carried out by folding between two rollers which are located in a plane essentially perpendicular to the direction of travel of the profile and which have a structured surface, in particular rollers with grooved surface or grooved in the axial direction over a length essentially corresponding to the portion of the largest diameter of the roller or cylinder of the second step and, therefore, to the height portion of the section portion which is corrugated.
  • the opposed structured rollers or rollers only mesh partially so that the rolled product is folded like a beam on two supports supporting a point load in the middle of its span.
  • the profiles according to the present invention are particularly suitable in applications requiring high strength and low weight.
  • the local rolling of the core over a distance less than its height between the two flanges prevents the creep of said flanges.
  • unwanted wing deformations are also avoided.
  • the shaping step is carried out by folding in a straightening machine which, moreover, makes it possible to straighten the profile obtained in a conventional manner.
  • an I-section 1 is shown comprising a core 3 and two flanges 5 and 7, laminated in one piece with the core 3.
  • the core 3 has, on a portion 9 of its height, a corrugation II in the longitudinal direction of the I-shaped.
  • said section 1 is passed between two cylinders 21 and 23 arranged in a plane essentially perpendicular to the plane of the core 3 and forming part of a cage. rolling 20.
  • the diameter of each of the two cylinders 21 and 23 is larger on a portion 9 than at the ends 25 and 27.
  • the profile 1 is further further laminated by vertical cylinders 28 and 29 which maintain the external dimensions of the profile 1.
  • the profile thus obtained can then pass through a straightener 31 for example equipped with straightening rollers 33 to 38 arranged in a manner known per se to make the laminated profile straight.
  • said dressing cage comprises two rollers 41 and 43 which are arranged in a plane 39 essentially perpendicular to the running plane of the profile 1 and which have a surface grooved in the axial direction, one adapting to the another in the manner of a gear, only partially entangling so as to produce a folding (FIG. 3).
  • one of the two rollers can be rotated while the other is free to rotate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Metal Rolling (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Air Bags (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Heat Treatment Of Steel (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Laminated Bodies (AREA)

Claims (6)

  1. Verfahren zum Herstellen eines gewalzten Profils mit einem in Längsrichtung des Profils über einen Teil seiner Höhe gewellten Bereich, das die folgenden Verfahrensschritte aufweist:
    - Zunächst wird auf eine an sich bekannte Weise eine herkömmliche Walzung ausgeführt, bis ein nahezu fertiger Rohling erhalten wird.
    - Danach wird eine dem gewellten Bereich entsprechende, örtliche Überlänge des so erhaltenen Rohlings erzeugt, wozu der Rohling zwischen zwei walzen hindurchgeführt wird, von denen mindestens eine über einen Teil ihrer Länge einen größeren Durchmesser aufweist.
    - Durch eine gleichmäßige und wiederholte Biegung der bei dem vorhergehenden Schritt erhaltenen Wellungen wird eine Formgebung vorgenommen, wobei diese Formgebung durch Biegung zwischen zwei Rollen ausgeführt wird, die in einer im wesentlichen zu der Laufrichtung des Profils senkrechten Ebene angeordnet sind, und die eine strukturierte Oberfläche aufweisen, das heißt, Rollen mit gerillter oder geriffelter Oberfläche, die in der axialen Richtung Zähne bildet über eine Länge, die im wesentlichen dem Bereich von größeren Durchmesser der Rolle oder Walze des zweiten Schritts, und folglich dem Höhenbereich des gewellten Profilteils entspricht, wobei die zwei strukturierten, einander gegenüberliegenden Rollen nur teilweise ineinandergreifen, so daß der gewellte Teil des gewalzten Profils nur mit den aufeinanderfolgenden Köpfen der Zähne jeder Rolle in Berührung kommt.
  2. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß die Formgebung durch Biegung gleichzeitig mit einem Richtvorgang ausgeführt wird.
  3. Verfahren gemäß irgendeinem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß bei der Erzeugung der Überlänge dem gewellten Bereich des Profils eine prozentuale Dehnung gegeben wird, die im wesentlichen gleich der prozentualen Überlänge der gewünschten Wellung bezüglich der Geraden ist.
  4. Anlage zur Verwirklichung eines Verfahrens zum Herstellen eines gewalzten Profils gemäß irgendeinem der Ansprüche 1 bis 3, umfassend:
    - eine an sich bekannte herkömmliche Anlage zur Ausführung einer Walzung, bis ein nahezu fertiger Rohling erhalten wird;
    - ein Walzgerüst mit zwei Walzen (21, 23), die in einer Ebene angeordnet sind, die im wesentlichen senkrecht zu der Laufebene des zu wellenden Bereichs (3) des Profils (1) ist, und von denen mindestens eine einen über einen Teil (9) ihrer Länge größeren Durchmesser aufweist, wobei das besagte Walzgerüst außerdem vertikale Walzen (28, 29) zum Walzen des besagten Profils aufweist, die die äußeren Abmessungen bestimmen;
    - eine Vorrichtung zur Formgebung durch kontinuierliche, gleichmäßige und wiederholte Biegung, die im wesentlichen zwei Walzen oder Rollen (41, 43) umfaßt, die in einer im wesentlichen zu der Laufrichtung des Profils senkrechten Ebene angeordnet sind, und die eine strukturierte, vorzugsweise gerillte oder geriffelte Oberfläche umfassen, die in der axialen Richtung Zähne bildet über eine axiale Lange, die im wesentlichen dem Höhenbereich des gewellten Teils des herzustellenden Profils entspricht, wobei die zwei einander gegenüberliegenden, strukturierten Rollen oder Walzen (41, 43) nur teilweise ineinandergreifen, so daß der gewellte Teil des gewalzten Profils nur mit den aufeinanderfolgenden Köpfen der Zähne jeder Rolle in Beruhrung kommt.
  5. Anlage gemäß Anspruch 4, dadurch gekennzeichnet, daß die Vorrichtung zur Formgebung durch Biegung in einer Richtmaschine angeordnet ist.
  6. Anlage gemäß irgendeinem der Ansprüche 4 oder 5, dadurch gekennzeichnet, daß eine der zwei gerillten Rollen angetrieben wird, und die andere sich frei dreht.
EP89870077A 1988-06-03 1989-05-30 Verfahren zum Herstellen eines gewalzten Stahlprofils mit einem gewellten Teil und Einrichtung, bestimmt für dieses Verfahren Expired - Lifetime EP0345241B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89870077T ATE73515T1 (de) 1988-06-03 1989-05-30 Verfahren zum herstellen eines gewalzten stahlprofils mit einem gewellten teil und einrichtung, bestimmt fuer dieses verfahren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE8800636A BE1001122A3 (fr) 1988-06-03 1988-06-03 Profile lamine comportant une partie ondulee, procede pour la fabrication de ceux-ci et installation destinee a leur fabrication.
BE8800636 1988-06-03

Publications (3)

Publication Number Publication Date
EP0345241A1 EP0345241A1 (de) 1989-12-06
EP0345241B1 EP0345241B1 (de) 1992-03-11
EP0345241B2 true EP0345241B2 (de) 1996-10-23

Family

ID=3883447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89870077A Expired - Lifetime EP0345241B2 (de) 1988-06-03 1989-05-30 Verfahren zum Herstellen eines gewalzten Stahlprofils mit einem gewellten Teil und Einrichtung, bestimmt für dieses Verfahren

Country Status (7)

Country Link
US (1) US4967581A (de)
EP (1) EP0345241B2 (de)
AT (1) ATE73515T1 (de)
BE (1) BE1001122A3 (de)
CA (1) CA1313315C (de)
DE (1) DE68900960D1 (de)
ES (1) ES2029566T5 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10246164B4 (de) * 2002-10-02 2014-03-20 Benteler Automobiltechnik Gmbh Verfahren zum Herstellen von Strukturbauteilen
US6834525B2 (en) * 2002-11-18 2004-12-28 The Boeing Company Adjustable corrugation apparatus and method
US8058970B2 (en) * 2005-08-24 2011-11-15 Homerun Holdings Corporation System and methods for automatically moving access barriers initiated by mobile transmitter devices
US7327108B2 (en) * 2005-08-24 2008-02-05 Wayne-Dalton Corp. System and methods for automatically moving access barriers initiated by mobile transmitter devices
US20070046428A1 (en) * 2005-08-24 2007-03-01 Wayne-Dalton Corporation System and methods for automatically moving access barriers initiated by mobile transmitter devices
US7327107B2 (en) 2005-08-24 2008-02-05 Wayne-Dalton Corp. System and methods for automatically moving access barriers initiated by mobile transmitter devices
US7642481B2 (en) * 2006-08-15 2010-01-05 The Boeing Company Apparatus and method for forming corrugated members
US7958763B2 (en) * 2006-08-24 2011-06-14 Ltc Roll & Engineering Co. Apparatus and process for reducing profile variations in sheet metal stock
BR112013028861B1 (pt) * 2011-05-13 2021-03-16 Mannstaedt Gmbh método, aparelho para produzir seções metálicas com uma dimensão de câmera com tolerância restringida e seção laminada

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR744933A (de) * 1933-04-27
US1106172A (en) * 1914-05-02 1914-08-04 Johann Martin Wetcke Rolling-mill for sheet metal.
DE2447554A1 (de) * 1974-10-02 1976-04-08 Mannesmann Ag Verfahren zum richten von insbesondere rohren
CA1150986A (en) * 1979-08-24 1983-08-02 Masami Hamada Method for producing i-beam having centrally corrugated web and rolls for producing such i-beam
US4251973A (en) * 1980-04-07 1981-02-24 Paik Young J I-Beam construction and process therefor
GB2074916B (en) * 1980-05-09 1983-09-07 Sumitomo Metal Ind Method for producing i-beam having centrally corrugated web
AT368725B (de) * 1981-01-30 1982-11-10 Evg Entwicklung Verwert Ges Kombinierte richt- und biegemaschine
JPS58107222A (ja) * 1981-12-21 1983-06-25 Hitachi Ltd 帯板の一部にひだを成形する方法
JPS5916844A (ja) * 1982-07-21 1984-01-28 Asahi Chem Ind Co Ltd 新規な光学活性化合物

Also Published As

Publication number Publication date
EP0345241A1 (de) 1989-12-06
ATE73515T1 (de) 1992-03-15
DE68900960D1 (de) 1992-04-16
CA1313315C (en) 1993-02-02
EP0345241B1 (de) 1992-03-11
ES2029566T3 (es) 1992-08-16
US4967581A (en) 1990-11-06
ES2029566T5 (es) 1997-01-01
BE1001122A3 (fr) 1989-07-25

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