EP0345241A1 - 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
EP0345241A1
EP0345241A1 EP89870077A EP89870077A EP0345241A1 EP 0345241 A1 EP0345241 A1 EP 0345241A1 EP 89870077 A EP89870077 A EP 89870077A EP 89870077 A EP89870077 A EP 89870077A EP 0345241 A1 EP0345241 A1 EP 0345241A1
Authority
EP
European Patent Office
Prior art keywords
profile
folding
rollers
rolling
shaping
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
EP89870077A
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English (en)
French (fr)
Other versions
EP0345241B2 (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
Cockerill Sambre SA
Profilarbed SA
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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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3883447&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0345241(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Cockerill Sambre SA, Profilarbed SA filed Critical Cockerill Sambre SA
Priority to AT89870077T priority Critical patent/ATE73515T1/de
Publication of EP0345241A1 publication Critical patent/EP0345241A1/de
Application granted granted Critical
Publication of EP0345241B1 publication Critical patent/EP0345241B1/de
Publication of EP0345241B2 publication Critical patent/EP0345241B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 planar 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.
  • 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 thereof with the consequence of a reduction in its thickness.
  • This also results in high tensions on the welds between the core and the soles 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 a finished ordinary beam and this by means of one or more rolling operations between two opposite structured cylinders.
  • the additional length is provided by the reduction in the thickness of the core thanks to the action of two structured cylinders, which obviously causes internal tensions and a significant work hardening of the material and, therefore, a camber or a twist of the I-beam.
  • 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.
  • Document FR-A-744 933 discloses metal sections with a locally reduced cross-sectional core, obtained by simple rolling.
  • the latter seeks to provide a simple method for the manufacture of a profile of the aforementioned 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 has 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 sections comprising a corrugated part, more particularly I-beams with corrugated core over part of its height, are obtained in the following operating steps: - Classic rolling is carried out in a manner known per se until a blank close to the finish is obtained; - Passing the blank thus obtained between two cylinders, at least one of which has a larger diameter over a portion of its length so as to cause an excess length; - Shaping is carried out by regular and repeated folding of the undulations obtained by the previous step.
  • the rolled 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 various stages implemented, 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, at least one of which has a larger diameter over part of its length, the space between the two cylinders or rollers is therefore locally reduced. The local rolling of the core thus obtained, over a distance less than its height between the flanges, prevents the creep of said flanges. 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 situated 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 opposite structured rolls or rollers only mesh slightly 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 straightener which, moreover, makes it possible to straighten the profile obtained in a conventional manner.
  • the installation intended for the manufacture of a profile of the above-mentioned type comprises at least: - a conventional rolling installation known per se for rolling until a blank close to the finish is obtained; a rolling stand comprising two rolls which are arranged in a plane essentially perpendicular to the running plane of the section of the section to be corrugated and at least one of which has a larger diameter over a central portion of its length, said cage comprising further vertical rolling cylinders of said profile, which impose the external dimensions; - a shaping device by regular folding and repeated continuously.
  • the folding-forming device essentially comprises two cylinders or rollers which are situated in a plane essentially perpendicular to the direction of travel of the profile and which comprise a structured surface, preferably grooved or grooved, in the axial direction over a length essentially corresponding to the height portion of the corrugated part of the profile to be manufactured.
  • the opposite structured cylinders or rollers mesh only slightly one inside the other.
  • an I-shaped section 1 comprising a core 3 and two flanges 5 and 7, laminated in one piece with the core 3.
  • the core 3 comprises, over a portion 9 of its height, a corrugation 11 in the longitudinal direction of the I-section.
  • 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 greater 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 plane of travel 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 slightly breaking apart so as to produce a folding (FIG. 3).
  • a rolled profile of a single I-shaped piece with corrugated core is thus obtained, which has very good mechanical properties and little internal stress.
  • the hardening stresses are particularly reduced; as can be seen in Figure 3 where the folding involves curved sections 45 and even linear sections 47 essentially without constraint.
  • 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)
  • Heat Treatment Of Steel (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
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 true EP0345241A1 (de) 1989-12-06
EP0345241B1 EP0345241B1 (de) 1992-03-11
EP0345241B2 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
US7327107B2 (en) 2005-08-24 2008-02-05 Wayne-Dalton Corp. System and methods for automatically moving access barriers initiated by mobile transmitter devices
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
US7642481B2 (en) * 2006-08-15 2010-01-05 The Boeing Company Apparatus and method for forming corrugated members
WO2008024842A2 (en) * 2006-08-24 2008-02-28 Ltc Roll & Engineering Co. Apparatus and process for reducing profile variations in sheet metal stock
RU2584095C2 (ru) * 2011-05-13 2016-05-20 Маннштет Гмбх Способ и устройство для производства металлических профилей с точным размером полости

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR744933A (de) * 1933-04-27
DE2447554A1 (de) * 1974-10-02 1976-04-08 Mannesmann Ag Verfahren zum richten von insbesondere rohren
US4251973A (en) * 1980-04-07 1981-02-24 Paik Young J I-Beam construction and process therefor
LU83044A1 (fr) * 1980-05-09 1981-03-27 Sumitomo Metal Ind Procede de fabrication d'une poutre en i comportant une ame a ondulation centrale et cylindres pour la fabrication de cette poutre
AT368725B (de) * 1981-01-30 1982-11-10 Evg Entwicklung Verwert Ges Kombinierte richt- und biegemaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1106172A (en) * 1914-05-02 1914-08-04 Johann Martin Wetcke Rolling-mill for sheet metal.
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
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR744933A (de) * 1933-04-27
DE2447554A1 (de) * 1974-10-02 1976-04-08 Mannesmann Ag Verfahren zum richten von insbesondere rohren
US4251973A (en) * 1980-04-07 1981-02-24 Paik Young J I-Beam construction and process therefor
LU83044A1 (fr) * 1980-05-09 1981-03-27 Sumitomo Metal Ind Procede de fabrication d'une poutre en i comportant une ame a ondulation centrale et cylindres pour la fabrication de cette poutre
AT368725B (de) * 1981-01-30 1982-11-10 Evg Entwicklung Verwert Ges Kombinierte richt- und biegemaschine

Also Published As

Publication number Publication date
ATE73515T1 (de) 1992-03-15
US4967581A (en) 1990-11-06
ES2029566T5 (es) 1997-01-01
ES2029566T3 (es) 1992-08-16
DE68900960D1 (de) 1992-04-16
EP0345241B2 (de) 1996-10-23
BE1001122A3 (fr) 1989-07-25
EP0345241B1 (de) 1992-03-11
CA1313315C (en) 1993-02-02

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