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EP0851200A2 - Procédé pour la réalisation de languettes et/ou de saillies sur une tôle mince et tube en tôle mince à section rectangulaire - Google Patents

Procédé pour la réalisation de languettes et/ou de saillies sur une tôle mince et tube en tôle mince à section rectangulaire Download PDF

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Publication number
EP0851200A2
EP0851200A2 EP97120668A EP97120668A EP0851200A2 EP 0851200 A2 EP0851200 A2 EP 0851200A2 EP 97120668 A EP97120668 A EP 97120668A EP 97120668 A EP97120668 A EP 97120668A EP 0851200 A2 EP0851200 A2 EP 0851200A2
Authority
EP
European Patent Office
Prior art keywords
tabs
sheet
thin sheet
projections
thin
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
EP97120668A
Other languages
German (de)
English (en)
Other versions
EP0851200B1 (fr
EP0851200B2 (fr
EP0851200A3 (fr
Inventor
Claus Beck
Jürgen Dipl.-Ing. Hägele (FH)
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7816220&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0851200(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP0851200A2 publication Critical patent/EP0851200A2/fr
Publication of EP0851200A3 publication Critical patent/EP0851200A3/fr
Publication of EP0851200B1 publication Critical patent/EP0851200B1/fr
Application granted granted Critical
Publication of EP0851200B2 publication Critical patent/EP0851200B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/04—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes or tubes with decorated walls
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S138/00—Pipes and tubular conduits
    • Y10S138/04—Air conditioning
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S138/00—Pipes and tubular conduits
    • Y10S138/11—Shape

Definitions

  • the invention relates to a method for attaching tabs and / or projections on a thin sheet, in particular on a sheet of thin sheet metal, which is essentially perpendicular to protrude from the base of the thin sheet and have a height, which is higher than the sheet thickness, as well as an afterwards manufactured sheet and one made of two sheets Rectangular tube for a heat exchanger.
  • the invention has for its object a method of to create the kind mentioned at the outset that economically too is realized.
  • the process according to the invention has the advantage that the tabs and / or projections not only simple and inexpensive a sheet or strip of sheet metal can, but that the tabs and / or protrusions are massive Parts are the like or without a column. connect to the thin sheet. As a result, they do not form susceptible to corrosion Put.
  • the thin sheet in the area of the tabs and / or projections by means of Stamp and die are loaded across its yield point is, with a part of the sheet material in one or several recesses in the die and / or the stamp are pressed in which, as negative forms, the tabs to be attached and / or protrusions.
  • This allows in a simple manner while maintaining relatively narrow tolerances Attach tabs and / or protrusions to the thin sheet.
  • a rectangular tube for one Heat exchanger, in particular for an exhaust gas heat exchanger is composed of two U-shaped sheet metal shells, whereby at least from the bottom of one of the sheet metal trays in pairs protrude arranged tabs inward, in the direction of flow Diverge in a V-shape using massive forming from the bottom at least one of the sheet metal trays are molded out.
  • the rectangular tube 10 shown in FIGS. 1 and 2 which in about is drawn four times its normal size Use in a heat exchanger and especially one Exhaust gas heat exchanger determined.
  • a tube bundle is formed, which is used for guidance is determined by exhaust gas.
  • the ends of the tube bundle are arranged gastight in each case in a tube sheet, the Tube sheets together with an outer jacket surrounding the tube bundle a housing for guiding a liquid coolant form.
  • This housing is between the two tube sheets an inlet and an outlet for the liquid coolant Mistake.
  • Such an exhaust gas heat exchanger is not in the Pre-published German patent application P 195 40 683.4 disclosed.
  • the rectangular tube 10 is made of two U-shaped sheet metal shells 11, 12 assembled, which are close together at their webs are connected, in particular welded. From the floors of the two sheet metal shells 11, 12 protrude to the inside of the Rectangular tube 10 down tabs 13, 14, which are about extend a quarter to a third of the height of the rectangular tube.
  • the tabs 13, 14 are symmetrical in pairs arranged to the longitudinal center of the rectangular tube 10. She run in a V-shape in the direction of flow of the gas to be guided apart, their ends facing the direction of flow keep a distance from each other.
  • the arranged in pairs Tabs 13, 14 repeat over the length of the Rectangular tube 10 at regular intervals.
  • the Sheet metal trays 11, 12 arranged so offset to one another, that the tabs 13, 14 of the bottoms of the sheet metal tray 11 and the thin sheet metal shell 12 offset from one another in the longitudinal direction are arranged.
  • the tabs 13, 14 are from the bottoms of the sheet metal shells 11, 12 by means of massive forming and in particular by means of a Extruded.
  • the thin sheet strips, which are later formed into the thin sheet metal half-shells 11, 12 become flat between a die and a stamp so loaded with pressure that the yield point of the Sheet material is exceeded and part of the sheet metal material in slots of a die (or also of the stamp) flows, which determine the shape of the tabs 13, 14.
  • FIGS. 1 and 2 are the thin sheet metal strips by means of a circular area loaded, which surrounds the two tabs 13, 14.
  • it can still other load areas are provided, for example square or rectangular surfaces or surfaces, adapted to the contour of the tabs 13, 14 to be formed are.
  • the thin sheet strips which have a sheet thickness of not exceed 1.0 mm, are extruded to about 70% to about 50% of their original sheet thickness compressed, causing tabs 13, 14 to be of one height result, the amount of which is easily 1.5 times the original Sheet thickness can be.
  • a device is shown schematically, by means of who carried out the massive forming to form the tabs can be.
  • the device has a lower part 15, in which a die 16 is arranged.
  • the die 16 has a recess 17 into which a sheet metal strip 18 is inserted is.
  • the thin sheet strip 18 is by means of the lower part 15 attached guides 19 held in the recess 17.
  • a stamp 22 In a lower part 15 with the application of a pressing force deliverable upper part 21, a stamp 22 is held, the between the guides 19 the sheet metal strip 18 can be delivered is, it covers the area of the recesses 20 area.
  • the stamp 22 has a flat, to the thin sheet 18 parallel stamp surface 23, the area of the recesses 20 of the die 16 in a sufficiently large area covered.
  • the stamp 22 is with its stamp surface 23 pressed into sheet metal strip 18 with sufficient force, so that the flow limit of the sheet material is exceeded becomes. Part of the sheet material then flows into the cutouts 20 and forms the tabs 13, 14, which are shown in Fig. 1 and 2 are shown.
  • the thin sheet is in the area the stamp area 23 to about 70% to about 50% of the original Sheet thickness compressed.
  • the depth of impression depends on the height of the tabs to be formed. Conveniently is the depth of penetration of the stamp surface 23 of the stamp 22 limited by a depth stop.
  • the cutouts 20 may be open slots or have a depth that is greater than the desired height of the tabs.
  • the high of Laschen is determined by the depth at which the Stamp surface 23 is pressed into the thin sheet 18. To mention is that with extrusion, that for extrusion usual lubricants are used to control the punching time to improve the tool.
  • Extrusion can be carried out when cold. If the extrusion is in a semi-warm state, for example up to 600 ° C or in the warm state, for example up to 1200 ° C, is carried out, the flowability of the Sheet material, so that smaller forming forces are required are.
  • a material for the thin sheet metal strip for example a steel with the number 1.4539 proved to be applicable.
  • Fig. 3 With the device shown in Fig. 3 can be the pairs of tabs 13, 14 in cycles shape by pushing the thin sheet 18 forward and the Extrusion process by delivering the stamp 22 also is carried out in cycles. However, it is also possible to use a similar extrusion by rolling the sheet metal strip perform. It can also be provided that a Median strip, in which the tabs 13, 14 by massive forming are formed, continuously extruded and thus compressed will while the tabs only come in regular Intervals are formed.
  • a die 16 provided with a flat support surface during the recesses 20 corresponding recesses in the stamp 22 in Area of the stamp surface 23 are provided.
  • the attachment the recesses 20 in the die 16 has the advantage that the gas-carrying side of one formed from the sheet metal strips 18 Tube except for the tabs 13, 14 smooth inner walls has, so that a deposit of solid particles or the like is avoided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Automatic Assembly (AREA)
  • Exhaust Silencers (AREA)
EP97120668A 1996-12-24 1997-11-26 Procédé pour la réalisation de languettes et/ou de saillies sur une tôle mince, tôle mince avec languettes et/ou saillies et tube en tôle mince à section rectangulaire Expired - Lifetime EP0851200B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19654367 1996-12-24
DE19654367A DE19654367A1 (de) 1996-12-24 1996-12-24 Verfahren zum Anbringen von Laschen und/oder Vorsprüngen an einem Feinblech und Feinblech mit Laschen und/oder Vorrichtungen sowie Rechteckrohr aus Feinblechen

Publications (4)

Publication Number Publication Date
EP0851200A2 true EP0851200A2 (fr) 1998-07-01
EP0851200A3 EP0851200A3 (fr) 1999-05-12
EP0851200B1 EP0851200B1 (fr) 2005-01-26
EP0851200B2 EP0851200B2 (fr) 2010-03-17

Family

ID=7816220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97120668A Expired - Lifetime EP0851200B2 (fr) 1996-12-24 1997-11-26 Procédé pour la réalisation de languettes et/ou de saillies sur une tôle mince, tôle mince avec languettes et/ou saillies et tube en tôle mince à section rectangulaire

Country Status (4)

Country Link
US (1) US6070616A (fr)
EP (1) EP0851200B2 (fr)
JP (1) JPH10193017A (fr)
DE (2) DE19654367A1 (fr)

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DE10102088A1 (de) 2000-01-28 2001-08-16 Behr Gmbh & Co Ladeluftkühler, insbesondere für Kraftfahrzeuge
US6729388B2 (en) 2000-01-28 2004-05-04 Behr Gmbh & Co. Charge air cooler, especially for motor vehicles
DE10127084B4 (de) 2000-06-17 2019-05-29 Mahle International Gmbh Wärmeübertrager, insbesondere für Kraftfahrzeuge
DE10162198A1 (de) 2000-12-19 2002-08-08 Denso Corp Wärmetauscher
JP2002267103A (ja) * 2001-03-12 2002-09-18 Showa Mfg Co Ltd ボイラの煙管構造
JP3774843B2 (ja) * 2001-05-25 2006-05-17 マルヤス工業株式会社 多管式熱交換器
JP3912080B2 (ja) * 2001-07-25 2007-05-09 株式会社デンソー 排気熱交換装置
ITMI20030363A1 (it) * 2003-02-28 2004-09-01 Lorenzo Bormioli Dispositivo a comando remoto per l'aggancio e sgancio rapido di un raccordo per tubazioni ad una tubazione flangiata.
DE102004045018B4 (de) 2003-09-30 2019-08-01 Mahle International Gmbh Verfahren zur Herstellung eines flachen Rohres für einen Wärmetauscher eines Kraftfahrzeugs, flaches Rohr, Verfahren zur Herstellung eines Wärmetauschers und Wärmetauscher
US20070107882A1 (en) * 2003-10-28 2007-05-17 Behr Gmbh & Co. Kg Flow channel for a heat exchanger, and heat exchanger comprising such flow channels
DE102004041101A1 (de) * 2004-08-24 2006-03-02 Behr Gmbh & Co. Kg Flachrohr für einen Wärmeübertrager, insbesondere für Kraftfahrzeuge und Verfahren zur Herstellung eines Flachrohres
DE102005029321A1 (de) 2005-06-24 2006-12-28 Behr Gmbh & Co. Kg Wärmeübertrager
DE102006045650B4 (de) * 2006-09-27 2008-08-21 Techeffekt Anstalt Wärmeübertrager mit einem Helix-Kanal für eine erzwungene Strömung
CN101910774A (zh) * 2008-01-10 2010-12-08 贝洱两合公司 用于热交换器的挤压管材
IT1399246B1 (it) 2009-11-03 2013-04-11 Advanced Res Consulting S R L Scambiatore di calore tubolare, in particolare tubo ricevitore per un impianto solare a concentrazione.
DE102014200234C5 (de) * 2013-12-09 2025-11-27 Magna International Inc. Werkzeug für die Warmumformung und Verfahren zu dessen Herstellung
JP6219199B2 (ja) * 2014-02-27 2017-10-25 株式会社神戸製鋼所 熱交換用プレートとなる元板材、及びその元板材の製造方法
CN105115338B (zh) * 2015-08-31 2017-08-25 东南大学 一种相变蓄热装置
FR3128520B1 (fr) * 2021-10-25 2024-01-19 Axens Paire de plaques d’échangeur de chaleur avec rainures et creux

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DE19540683A1 (de) 1995-11-01 1997-05-07 Behr Gmbh & Co Wärmeüberträger zum Kühlen von Abgas

Also Published As

Publication number Publication date
JPH10193017A (ja) 1998-07-28
EP0851200B1 (fr) 2005-01-26
DE19654367A1 (de) 1998-06-25
US6070616A (en) 2000-06-06
EP0851200B2 (fr) 2010-03-17
DE59712183D1 (de) 2005-03-03
EP0851200A3 (fr) 1999-05-12

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