WO2002038320A1 - Procede de fabrication d'un dispositif de corps alveolaires brase - Google Patents

Procede de fabrication d'un dispositif de corps alveolaires brase Download PDF

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Publication number
WO2002038320A1
WO2002038320A1 PCT/EP2001/012316 EP0112316W WO0238320A1 WO 2002038320 A1 WO2002038320 A1 WO 2002038320A1 EP 0112316 W EP0112316 W EP 0112316W WO 0238320 A1 WO0238320 A1 WO 0238320A1
Authority
WO
WIPO (PCT)
Prior art keywords
honeycomb body
housing
honeycomb
soldered
casing tube
Prior art date
Application number
PCT/EP2001/012316
Other languages
German (de)
English (en)
Inventor
Ludwig Wieres
Original Assignee
Emitec Gesellschaft Für Emissions-Technologie 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 Für Emissions-Technologie Mbh filed Critical Emitec Gesellschaft Für Emissions-Technologie Mbh
Priority to DE10194759T priority Critical patent/DE10194759D2/de
Priority to AU2002218257A priority patent/AU2002218257A1/en
Publication of WO2002038320A1 publication Critical patent/WO2002038320A1/fr

Links

Classifications

    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/0014—Brazing of honeycomb sandwich structures
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/02—Honeycomb structures

Definitions

  • the present invention relates to a method for producing a soldered honeycomb structure.
  • Honeycomb bodies which are formed by stacking and / or winding sheet metal layers, the sheet metal layers being at least partially structured, so that the honeycomb body has channels for a fluid to flow through, are known in many forms. Such honeycomb bodies are provided, for example, with catalytic coatings and are used in the automotive industry as catalyst carrier bodies in exhaust gas purification. Different configurations of honeycomb body arrangements as catalyst carrier bodies are described, for example, in EP-AI-0245 738.
  • the stacked and / or wound sheet metal layers are at least partially soldered to one another, so that a monolithic honeycomb body is formed. It is also known to at least partially solder the honeycomb body to the jacket tube in which it is arranged. For this purpose, solder is introduced into the soldering areas of the sheet metal layers and on the inside of the casing tube.
  • Methods for applying an adhesive for soldering a metallic honeycomb structure are known, for example, from WO 89/11938, WO 94/06594, WO 93/25339 and DE-Al-2924 592.
  • soldering techniques are known from the prior art which apply the solder to the front of the honeycomb body.
  • the unsoldered honeycomb body is at least partially pushed into a tubular casing or a housing and the end face of the honeycomb body is provided with adhesive or solder powder.
  • the problem arises that soldering on the end face is not possible at least on one end face, since the direct access to this end face of the honeycomb body necessary for the soldering is pers is blocked.
  • soldering on the end face is difficult.
  • the present invention is based on the object of specifying a method for producing a soldered honeycomb body arrangement which avoids the mentioned disadvantages of the prior art and enables rational and high-quality production of the soldered honeycomb body arrangement.
  • honeycomb bodies soldered on the end face should be able to be produced inside a housing that is not easily accessible from one end face.
  • the honeycomb body for producing a soldered honeycomb body arrangement it is proposed to first form a honeycomb body by stacking and / winding sheet metal layers which are at least partially structured, so that the honeycomb body has channels for a fluid to flow through. Then the ' Honeycomb body introduced into a tool which specifies the outer shape of the honeycomb body, the outer shape of the honeycomb body being essentially the final, inner shape of the casing tube or the housing. Thereupon, the honeycomb body is soldered with solder powder according to a soldering process, as is known for honeycomb bodies arranged in a jacket tube.
  • the honeycomb body is transferred from the tool into a housing or casing tube arranged in alignment with it, with only a slight relative movement of the sheet metal layers with one another taking place during the transfer. Finally a soldering process is carried out.
  • the advantage of this method is that due to the slight relative movement of the sheet metal layers to one another, no solder powder is pushed aside by the sheet metal layers in contact with one another, so that areas with an undesirable excess or lack of solder powder are avoided. Uniform soldering is achieved and the solder powder does not fall off the sheet layers.
  • the tool specifies the outer shape of the honeycomb body, as it will later appear in the casing tube or in the housing.
  • the shape of the casing tube or the housing can change, for example by reducing the cross-sectional shape of the casing tube or housing, but the goal after the honeycomb body has been soldered to the honeycomb body in to change its shape only insignificantly. Relative movements of the sheet metal layers with one another are hereby avoided.
  • the tool can be designed like a jacket tube, ie the inner shape of the tool corresponds to the inside shape of the jacket tube or the housing, but can also be pliers-like, which only holds the honeycomb body at certain points. It is crucial here that the tool brings the honeycomb body into its final shape and essentially holds it.
  • the honeycomb body is introduced into a tool which, compared to the casing tube or housing, has a cross-sectional shape which is reduced by 0.1 to 2 mm, preferably 0.5 to 1 mm, in particular a reduced diameter ,
  • a tool which, compared to the casing tube or housing, has a cross-sectional shape which is reduced by 0.1 to 2 mm, preferably 0.5 to 1 mm, in particular a reduced diameter .
  • the jacket tube or the housing is provided on the inside with at least one circumferential strip of solder material. This ensures that the honeycomb body is also soldered to the inside of the housing or the casing tube and a mechanically stable connection is created.
  • the inner shape of the casing tube or the housing is reduced to the outer shape of the honeycomb body during the transfer. In this way, the casing tube or the housing can be calibrated and / or brought to its final shape.
  • the outer shape of the honeycomb body is detected by means of a sensor in order to thereby reduce the inner shape of the casing tube or the housing exactly to that of the honeycomb body. In this way, a particularly good fit of the honeycomb body in the casing tube or the housing is achieved without relative movement of the sheet metal layers.
  • the honeycomb body is formed in such a way that the ends of the sheet metal layers each abut the casing tube or the housing and can be soldered there.
  • the sheet metal layers of the honeycomb body are formed in an involute or S shape. Further details and advantages of the invention are explained with reference to the process section shown in the drawing.
  • the drawing shows schematically the transfer of the honeycomb body, which is important for the invention, after the soldering from the tool into a housing or jacket tube.
  • a honeycomb body 1 is surrounded by a tool 3, the outer shape of the honeycomb body 1 being predetermined by the inner shape of the tool 3.
  • a curved section 6 of a casing tube or a housing 2 does not permit face soldering from one side.
  • the tool 3 consists of two opposite half-shells, each of which is connected to a gripping device 5, which can move the tool 3.
  • bolts, circular segments or other force-exerting elements which are able to specify the external shape of the honeycomb body can also be used.
  • a plunger 4 presses the honeycomb body 1 out of the tool 3 into a housing or casing tube 2 aligned with the honeycomb body 1.
  • the tool 3 does not open after the honeycomb body 1 has been soldered before the honeycomb body 1 at least partially is introduced into the casing tube or housing. In this way, relative movements of the sheet layers with one another are avoided, which would otherwise deteriorate the quality of the brazing. It is advantageous to provide the outer shape of the honeycomb body 1 somewhat smaller than the inner shape of the housing or jacket tube, so that the honeycomb body 1 can be introduced into the jacket tube or housing 2 without greater friction of the sheet metal layers of the honeycomb body 1 on the inside of the casing tube or housing.
  • the honeycomb body 1 can be at least partially inserted into the casing tube or housing 2, the internal shape of the housing or casing tube 2 being larger than its final shape, whereupon the housing or casing tube 2 by the action of another tool (not shown). is reduced. It is important here to avoid relative movements of the sheets of the honeycomb body 1.
  • the invention relates to a method for producing a soldered honeycomb body arrangement, which enables the manufacture of the honeycomb body soldered on the end face in jacket tubes or housings that are not suitable for soldering processes on the end face. Relative movements of the sheet metal layers after the brazing of their surfaces are avoided.
  • the process is characterized in that soldered honeycomb body arrangements can be produced particularly quickly, economically and efficiently, with a uniform solder application.

Landscapes

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

Abstract

L'invention concerne un procédé de fabrication d'un dispositif de corps alvéolaires brasé, consistant à former un corps alvéolaire (1) par empilement et/ou enroulement de couches de tôle au moins partiellement structurées, de manière que ledit corps alvéolaire (1) présente des canaux pouvant être parcourus par un liquide ; à loger le corps alvéolaire (1) dans un outil (3) définissant la forme extérieure du corps alvéolaire (1), la forme extérieure du corps alvéolaire (1) étant essentiellement la forme intérieure définitive du tube enveloppe ou du boîtier (2) ; à revêtir le corps alvéolaire (1) d'une poudre de brasage selon un procédé de revêtement connu dans le cas de corps alvéolaires (1) disposés dans un tube enveloppe ; à déplacer le corps alvéolaire (1) au moyen d'un outil (3) vers un tube enveloppe ou un boîtier (2) logé de manière alignée, le mouvement relatif des couches de tôle n'étant que très faible lors de cette opération ; et, à réaliser finalement un procédé de brasage. Ledit procédé est caractérisé en ce qu'il permet de fabriquer des corps alvéolaires brasés côté frontal dans des tubes enveloppes ou des boîtiers inadaptés au brasage côté frontal. On évite par ailleurs les mouvements relatifs des couches de tôle dans le corps alvéolaire (1) de manière à empêcher tout détachement de poudre de brasage, et à mettre en oeuvre une fabrication rapide et rationnelle d'un dispositif de corps alvéolaires brasé avec application uniforme de métal d'apport.
PCT/EP2001/012316 2000-11-10 2001-10-25 Procede de fabrication d'un dispositif de corps alveolaires brase WO2002038320A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10194759T DE10194759D2 (de) 2000-11-10 2001-10-25 Verfahren zum Herstellen einer gelöteten Wabenkörperanordnung
AU2002218257A AU2002218257A1 (en) 2000-11-10 2001-10-25 Method for producing a soldered honeycomb body arrangement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10055650A DE10055650A1 (de) 2000-11-10 2000-11-10 Verfahren zum Herstellen einer gelöteten Wabenkörperanordnung
DE10055650.7 2000-11-10

Publications (1)

Publication Number Publication Date
WO2002038320A1 true WO2002038320A1 (fr) 2002-05-16

Family

ID=7662765

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/012316 WO2002038320A1 (fr) 2000-11-10 2001-10-25 Procede de fabrication d'un dispositif de corps alveolaires brase

Country Status (3)

Country Link
AU (1) AU2002218257A1 (fr)
DE (2) DE10055650A1 (fr)
WO (1) WO2002038320A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241469A1 (de) * 1992-12-09 1994-06-16 Emitec Emissionstechnologie Katalytischer Konverter mit zwei oder mehr Wabenkörpern in einem Mantelrohr und Verfahren zu seiner Herstellung
EP0609449A1 (fr) * 1992-05-29 1994-08-10 Nippon Yakin Kogyo Co., Ltd. Procede de fabrication d'un support metallique en nid d'abeilles
EP0820830A2 (fr) * 1993-06-07 1998-01-28 Nippon Yakin Kogyo Co., Ltd. Support métallique d'épuration des gaz d'échappement et procédé pour sa fabrication

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0609449A1 (fr) * 1992-05-29 1994-08-10 Nippon Yakin Kogyo Co., Ltd. Procede de fabrication d'un support metallique en nid d'abeilles
DE4241469A1 (de) * 1992-12-09 1994-06-16 Emitec Emissionstechnologie Katalytischer Konverter mit zwei oder mehr Wabenkörpern in einem Mantelrohr und Verfahren zu seiner Herstellung
EP0820830A2 (fr) * 1993-06-07 1998-01-28 Nippon Yakin Kogyo Co., Ltd. Support métallique d'épuration des gaz d'échappement et procédé pour sa fabrication

Also Published As

Publication number Publication date
AU2002218257A1 (en) 2002-05-21
DE10194759D2 (de) 2003-10-02
DE10055650A1 (de) 2002-05-16

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