EP0925128B1 - Procede et dispositif de fabrication d'une tole metallique ondulee presentant une microstructure dans le sens transversal de l'ondulation - Google Patents

Procede et dispositif de fabrication d'une tole metallique ondulee presentant une microstructure dans le sens transversal de l'ondulation Download PDF

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Publication number
EP0925128B1
EP0925128B1 EP97944760A EP97944760A EP0925128B1 EP 0925128 B1 EP0925128 B1 EP 0925128B1 EP 97944760 A EP97944760 A EP 97944760A EP 97944760 A EP97944760 A EP 97944760A EP 0925128 B1 EP0925128 B1 EP 0925128B1
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EP
European Patent Office
Prior art keywords
microstructures
corrugation
microstructure
corrugating
metal sheet
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
EP97944760A
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German (de)
English (en)
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EP0925128A1 (fr
Inventor
Rolf BRÜCK
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.)
Vitesco Technologies Lohmar Verwaltungs GmbH
Original Assignee
Emitec Gesellschaft fuer Emissionstechnologie mbH
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 Emitec Gesellschaft fuer Emissionstechnologie mbH filed Critical Emitec Gesellschaft fuer Emissionstechnologie mbH
Publication of EP0925128A1 publication Critical patent/EP0925128A1/fr
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Publication of EP0925128B1 publication Critical patent/EP0925128B1/fr
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Classifications

    • 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
    • B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
    • F01N3/2821—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates the support being provided with means to enhance the mixing process inside the converter, e.g. sheets, plates or foils with protrusions or projections to create turbulence
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
    • F01N2330/04—Methods of manufacturing

Definitions

  • the present invention relates to a method and an apparatus for Manufacture of a metal sheet with a corrugation that is a first predetermined Has corrugation height, the sheet being transverse or at an angle to the Wave a microstructure with a second, much smaller wave height Has.
  • metal sheets are primarily honeycomb bodies for catalytic Processed converter, such as those used in exhaust systems of motor vehicles Find use.
  • the invention is not for this application limited because z. B. Applications in heat exchangers are possible.
  • microstructures are e.g. described in WO 90/08249 or WO 96/09892.
  • How Even in the prior art, underneath a microstructure is undulated Sheet metal understood a structure that is much smaller Height than the corrugation of the sheet.
  • a microstructure protrude from a sheet on one or both sides, for example by at least 15 ⁇ or by 0.01 to about 0.3 times the Corrugation height of the metal sheet.
  • Corrugated metal sheets are generally known in the art intermeshing corrugated rollers produced, which preferably have an involute toothing or have a similar toothing. There are however other wave forms, e.g. Trapezoidal shape, zigzag shape etc., known.
  • a honeycomb body through which exhaust gas flows in particular in a catalytic converter, transversely or diagonally to the direction of flow running microstructures, so-called transverse structures (TS design)
  • TS design transverse structures
  • the prior art therefore provides for microstructures in certain To arrange distances in the flow direction one behind the other, especially in Distances of less than 20 mm, in particular less than 10 mm.
  • microstructures are in relation to the typical thickness of sheets for Honeycomb bodies were relatively small, it was previously assumed that they do not significantly interfere with the further manufacturing process, so that a Processing in the usual corrugated rollers and further with known ones Manufacturing steps to form a honeycomb body took place.
  • a device according to the preamble of claim 1 or a A method according to the preamble of claim 9 is known from US-A-4 888 972.
  • the object of the present invention is a manufacturing method and to create a corresponding device with which corrugated metal sheets with microstructures running diagonally or diagonally to the corrugation economically and can be manufactured without inadmissible cold forming.
  • a device according to claim 1 serves to achieve this object and a method according to claim 9.
  • Advantageous refinements are specified in the respective dependent claims.
  • the device according to the invention for producing a metal sheet with a corrugation which has a first predetermined corrugation height, the Sheet with a microstructure across or at an angle to the corrugation has a second, significantly smaller corrugation height contains a device to create the microstructure, a pair of intermeshing Corrugated rollers, which are behind the device for generating the microstructure are arranged, the corrugated rollers having recesses on their outer surfaces have suitably arranged and / or big enough for the recording of the microstructures, so that the microstructures are at waves of the metal sheet are not deformed by the corrugated rollers.
  • microstructures are relatively complex, after all, the crucial one arises Advantage that microstructures with precisely defined and everywhere constant height can be produced without first very strong cold deformation must take place, which later partly through the wave process is flattened.
  • Such a device can therefore especially for the production of microstructures in corrugated Sheet layers with a thickness of e.g. 25 to 50 ⁇ m can be used without any problems.
  • corrugated rollers with a kind of involute toothing used are used, but the invention is not on this type of rollers is limited.
  • all types of corrugated rolls have some Game to each other, whereby on the flanks and / or on the tops of the Teeth or in the spaces between the teeth during the Distances that are difficult to reproduce can occur in the production process.
  • this game has no effect on the level of microstructures.
  • the width and depth of at least the width or height of the microstructures should correspond. But it is also possible to use the microstructures can be re-shaped if necessary using suitably deformed grooves.
  • the device to create the microstructure and the corrugated rollers so to each other are adjustable that the microstructures generated are always in recesses the corrugated rollers.
  • the easiest way to do this is through a very close achieve spatial arrangement, but can also by suitable adjustment devices can be achieved at larger distances.
  • honeycomb bodies are made from alternating layers of smooth and corrugated sheets or from alternating layers of different corrugated sheets Sheets are formed, various designs being known, for example spirally wound, S-shaped or in the manner of a Involute intertwined sheet layers.
  • the microstructures may to be disruptive Clearances between the sheet layers.
  • the through the microstructures resulting gaps between adjacent sheet metal layers leave from a certain Size is difficult to bridge by solder, which is why microstructures on the wave crests on both sides of the corrugated sheet layers can sometimes be undesirable.
  • the corrugated rollers at least one smoothing device is arranged downstream of the microstructures on the wave crests of the corrugated sheet on one or both sides can flatten again.
  • Such a device can, for example a corrugated roller with recesses that runs against a flat roller.
  • microstructures on the wave crests are flattened, where they anyway have no influence on the later in the honeycomb body would have flowing current, which means the connection by means of Lotes much easier.
  • the other microstructures remain unchanged and can perform its intended function without further interference with the Fulfill the production process.
  • corrugated rollers and arranged behind them Smoothing device it is also possible instead of corrugated rollers and arranged behind them Smoothing device to use special corrugated rollers in their troughs have no recesses, so that there the microstructures can be flattened. This can be achieved particularly well if if the corrugated rollers have little play between opposite Have wave valleys and wave crests.
  • microstructures which are no longer deformed after their creation and therefore very well defined and reproducible.
  • the microstructures can be soldered to one another Wave crests on at least one of the two sides in the corrugated rollers or be flattened in a subsequent smoothing device.
  • Fig. 1 is the heart of the present invention, namely a shaft device shown for metal sheets.
  • a metal sheet 1 which is already in a device for the production of microstructures with downward pointing Microstructures 6 and with upward facing microstructures 7 has been provided, is fed to a pair of corrugated rollers 3a, 3b.
  • This Corrugated rollers have cutouts 8 on their surface, which in particular are executed in the form of grooves.
  • These recesses 8, of which only one is shown in the drawing take the previously created microstructures 6, 7 on, so that when the sheet is corrugated by the corrugation process not be influenced.
  • the height B of the microstructures 6, 7 is essential smaller than the first corrugation height A of the corrugated metal sheet 1.
  • Fig. 2 is the production flow for the manufacture of a schematic corrugated sheet with microstructures.
  • the metal sheet 1 runs first by means 2a, 2b for generating the microstructure, as is known from the prior art. In particular, it can around cylindrical rollers with corresponding surface structures or around single narrow slices act together by cold working apply the microstructure to the metal sheet 1. This will then fed to a pair of corrugated rollers 3a, 3b, as shown in more detail in FIG. 1 are shown.
  • the microstructures on the wave crests 9, 10 of the corrugated metal sheet 1 are undesirable, they can be smoothed by smoothing devices 4a, 4b or 5a, 5b.
  • smoothing devices consist, for example, of a cylindrical roller 4a or 5b with a smooth surface, which against a corrugated roller 4b or 5a runs, these corrugated rollers preferably having the same recesses, like those used to make the curl.
  • Corrugated metal sheets produced in this way with microstructures can are used in particular for honeycomb bodies in exhaust systems. she increase the heat transfer between the honeycomb body and a flowing through Fluid and accelerate diffusion processes, which in particular is advantageous for the effectiveness of a catalytic converter.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Catalysts (AREA)
  • Laminated Bodies (AREA)
  • Metal Rolling (AREA)

Claims (10)

  1. Dispositif destiné à la fabrication d'une tôle métallique (1) avec une ondulation qui présente une première hauteur d'ondulation (A) prédéterminée, la tôle (1) présentant transversalement ou en un angle par rapport à l'ondulation une microstructure (6, 7) avec une deuxième hauteur d'ondulation (B) sensiblement plus petite, le dispositif présentant un arrangement (2a, 2b) pour la génération de la microstructure (6, 7) et une paire de rouleaux d'ondulation (3a, 3b) s'engrenant qui sont agencés derrière l'arrangement (2a, 2b) pour la génération de la microstructure, caractérisé en ce que les rouleaux d'ondulation (3a, 3b) présentent des évidements (8) à leurs surfaces extérieures qui sont agencés de manière appropriée et sont assez grands pour recevoir les microstructures (6, 7) afin que les microstructures (6, 7) ne soient pas déformées par les rouleaux d'ondulation (3a, 3b) lors de l'ondulation de la tôle métallique (1).
  2. Dispositif selon la revendication 1, caractérisé en ce que les rouleaux d'ondulation (3a, 3b) présentent un engrenage semblable à un engrenage à développante.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les rouleaux d'ondulation (3a, 3b) présentent des rainures (8) comme évidements s'étendant en direction périphérique ou obliquement à celle-ci qui dans leur largeur et leur profondeur correspondent au moins à la largeur, respectivement à la hauteur des microstructures (6, 7).
  4. Dispositif selon la revendication 1, 2 ou 3, caractérisé en ce que l'arrangement (2a, 2b) pour la génération de la microstructure et les rouleaux d'ondulation (3a, 3b) peuvent être ajustés de telle manière les uns par rapport aux autres que les microstructures générées (6, 7) rencontrent toujours des évidements (8) des rouleaux d'ondulation (3a, 3b).
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les rouleaux d'ondulation (3a, 3b) sont suivis d'au moins un arrangement à lissage (4a, 4b ; 5a, 5b), qui peut aplatir d'un coté ou de deux cotés les microstructures sur les crêtes des ondulations (9, 10) de la tôle ondulée (1)
  6. Dispositif selon la revendication 5, caractérisé en ce que l'arrangement de lissage présente un rouleau d'ondulation (4a ; 5a) avec des évidements et un rouleau plat (4a; 4b) courant contre celui-ci.
  7. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que les rouleaux d'ondulation (3a, 3b) ne présentent pas d'évidements (8) dans leurs creux d'ondulation, de sorte que les microstructures (6, 7) puissent y être aplaties.
  8. Dispositif selon la revendication 7, caractérisé en ce que les rouleaux d'ondulation (3a, 3b) ont un jeu faible entre des creux d'ondulations et des crêtes d'ondulations opposés.
  9. Procédé destiné à la fabrication d'une tôle métallique (1) avec une ondulation qui présente une première hauteur d'ondulation (A) prédéterminée, la tôle métallique (1) présentant transversalement ou en un angle par rapport à l'ondulation une microstructure (6, 7) avec une deuxième hauteur d'ondulation (B) sensiblement plus petite, avec des étapes de procédé les suivantes :
    génération de la microstructure (6, 7) dans une tôle métallique (1) pas encore ondulée ;
    amenée de la tôle métallique ( 1 ) à une paire de rouleaux d'ondulation (3a, 3b) s'engrenant ;
    ondulation du ruban de tôle (1),
    caractérisé en ce que les rouleaux d'ondulation (3a, 3b) présentent des évidements (8) agencés en position appropriée par rapport aux microstructures (6, 7) pour recevoir les microstructures (6, 7), de sorte que l'ondulation du ruban de tôle (1) s'effectue sans aplatir les microstructures (6, 7).
  10. Procédé selon la revendication 9, caractérisé en ce qu'ensuite un aplatissement des microstructures (6, 7) est effectué sur les crêtes des ondulations (9, 10) sur au moins un des deux cotés de la tôle métallique (1).
EP97944760A 1996-09-06 1997-08-14 Procede et dispositif de fabrication d'une tole metallique ondulee presentant une microstructure dans le sens transversal de l'ondulation Expired - Lifetime EP0925128B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19636367A DE19636367A1 (de) 1996-09-06 1996-09-06 Verfahren und Vorrichtungen zum Herstellen eines Metallbleches mit einer Wellung und einer quer dazu liegenden Mikrostruktur
DE19636367 1996-09-06
PCT/EP1997/004469 WO1998009745A1 (fr) 1996-09-06 1997-08-14 Procede et dispositif de fabrication d'une tole metallique ondulee presentant une microstructure dans le sens transversal de l'ondulation

Publications (2)

Publication Number Publication Date
EP0925128A1 EP0925128A1 (fr) 1999-06-30
EP0925128B1 true EP0925128B1 (fr) 2000-11-02

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Country Status (11)

Country Link
US (1) US5983692A (fr)
EP (1) EP0925128B1 (fr)
JP (1) JP2000517245A (fr)
CN (1) CN1091011C (fr)
AU (1) AU4617197A (fr)
BR (1) BR9711702A (fr)
DE (2) DE19636367A1 (fr)
MY (1) MY115693A (fr)
RU (1) RU2201309C2 (fr)
TW (1) TW385262B (fr)
WO (1) WO1998009745A1 (fr)

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CN101306444B (zh) * 2008-06-23 2010-10-13 上海锅炉厂有限公司 一种能同时轧制两种或三种波纹的传热元件的轧制方法
CN102245795B (zh) * 2008-10-10 2013-06-26 东曹Smd有限公司 用于溅射靶制造的圆形凹槽挤压机构和方法
CN101829718B (zh) * 2010-05-21 2012-07-04 深圳市金洲精工科技股份有限公司 一种波形钣金件滚压成形装置及滚压成形方法
CN102527798A (zh) * 2011-12-23 2012-07-04 浙江天泽环境科技有限公司 金属载体波纹带成型装置
CN103104676B (zh) * 2013-01-24 2016-03-23 甘肃建投装备制造有限公司 圆弧形齿条及其加工工艺和圆弧齿成型装置
CN103111502A (zh) * 2013-03-11 2013-05-22 吉林大学 一种微结构表面塑性成形组合辊
CN103230971B (zh) * 2013-03-28 2014-10-29 广东省蚕业技术推广中心 一种用于生产蚕蔟的机床及其制造蚕蔟的方法
JP6016711B2 (ja) * 2013-05-31 2016-10-26 カルソニックカンセイ株式会社 フィンの製造方法およびフィン
CN103341540B (zh) * 2013-07-18 2014-10-29 吉林大学 一种微结构表面辊压成形装置及方法
CN103962800A (zh) * 2014-04-02 2014-08-06 浙江天泽环境科技有限公司 一种颗粒捕集结构的制作工艺
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Publication number Publication date
DE59702576D1 (de) 2000-12-07
AU4617197A (en) 1998-03-26
BR9711702A (pt) 1999-08-24
JP2000517245A (ja) 2000-12-26
CN1091011C (zh) 2002-09-18
EP0925128A1 (fr) 1999-06-30
DE19636367A1 (de) 1998-03-12
RU2201309C2 (ru) 2003-03-27
TW385262B (en) 2000-03-21
US5983692A (en) 1999-11-16
WO1998009745A1 (fr) 1998-03-12
CN1229371A (zh) 1999-09-22
MY115693A (en) 2003-08-30

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