DE3608120A1 - Bodies of thin-walled, aluminium-containing stainless steel - Google Patents

Bodies of thin-walled, aluminium-containing stainless steel

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Publication number
DE3608120A1
DE3608120A1 DE19863608120 DE3608120A DE3608120A1 DE 3608120 A1 DE3608120 A1 DE 3608120A1 DE 19863608120 DE19863608120 DE 19863608120 DE 3608120 A DE3608120 A DE 3608120A DE 3608120 A1 DE3608120 A1 DE 3608120A1
Authority
DE
Germany
Prior art keywords
foils
bodies
stainless steel
wires
walled
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.)
Withdrawn
Application number
DE19863608120
Other languages
German (de)
Inventor
Dieter Goerres
Friedrich Dr Ing Behr
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.)
Thyssen Stahl AG
Original Assignee
Thyssen Industrie AG
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 Thyssen Industrie AG filed Critical Thyssen Industrie AG
Priority to DE19863608120 priority Critical patent/DE3608120A1/en
Publication of DE3608120A1 publication Critical patent/DE3608120A1/en
Withdrawn legal-status Critical Current

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
    • 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
    • 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
    • B23K13/00—Welding by high-frequency current heating
    • 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
    • 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
    • F01N3/2814—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates all sheets, plates or foils being corrugated
    • 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
    • F01N3/2835—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support fibrous
    • 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
    • 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
    • F01N2330/10—Fibrous material, e.g. mineral or metallic wool
    • 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
    • F01N2370/00—Selection of materials for exhaust purification

Abstract

Bodies made up of thin-walled foils (2), sheets or wires (8) of stainless with 3 to 10% aluminium are used as catalyst supports. It is known to deform the foils (2) by embossing, to produce the body therefrom by winding, to degrease it and, after the application of a nickel-based solder under high vacuum, to solder the foils (2) to one another. The soldering is complicated from a production point of view and leads to joints which are more brittle than the stainless steel foils and also to an undesired influencing of the foils (2) by the applied solders in the heat treatment necessary during further processing to form the catalyst. A type of production which is simple from a production point of view and avoids the introduction of the undesired solders into the catalyst support consists in, after winding the films or wires and inserting them into a sleeve tube (1), welding them at the contact points to one another and also at the contact points to the sleeve tube (1) by heating the bodies in an induction vacuum oven with a very low leakage rate to temperatures of approximately 1300 DEG C. <IMAGE>

Description

Die Erfindung betrifft Körper, die sich aus dünnwandigen Folien und/oder Blechen und/oder Drähten zusammensetzen und deren Material ein Edelstahl ist, der u. a. 3 bis 10% Aluminium enthält sowie ein Verfahren zu Herstellung dieser Körper.The invention relates to bodies that are made of thin-walled Foils and / or sheets and / or wires put together and the material is stainless steel, the u. a. Contains 3 to 10% aluminum as well as a Process of making these bodies.

Es ist Stand der Technik, z. B. Katalysatorträger aus ca. 0,05 mm dicken Edelstahlfolien, die ca. 5% Aluminium, 14 bis 25% Chrom, Rest Eisen sowie kleinere Mengen anderer Legierungsanteile mit jeweils weniger als 4% enthalten, dadurch hergestellt werden, daß manIt is state of the art, e.g. B. catalyst support from approx.0.05 mm thick stainless steel foils, which approx. 5% Aluminum, 14 to 25% chromium, the rest iron and smaller ones Amounts of other alloy proportions with each contain less than 4%, are manufactured by that he

  • a) die Folie durch Prägen verformt, danna) the film is deformed by embossing, then
  • b) den Körper durch Wickeln herstellt, dannb) the body is made by wrapping, then
  • c) entfettet, dannc) degreased, then
  • d) ein Nickelbasislot aufbringt undd) applying a nickel based solder and
  • e) im Hochvakuum bei Temperaturen von bis zu ca. 1200°C die gewickelten Folien miteinander verlötet.e) in a high vacuum at temperatures of up to the wrapped foils at approx. 1200 ° C soldered together.

Dabei kann das Lot - jeweils nach Entfettung - auch zwischen den Schritten a) und b) mit den verschiedensten Methoden aufgebracht werden.The solder can - after degreasing - also between steps a) and b) with the most varied Methods are applied.

Die Nachteile dieser Fertigung bestehen darin, daß zum einen die verbesserten Lote sowie die zum Aufbringen des Lotes notwendigen organischen Bindemittel einen hohen Anteil an den gesamten Fertigungskosten haben, zum anderen, daß Lötverbindungen entstehen, die spröder sind als das Edelstahlmaterial und zum dritten, daß das Aufbringen des Lotes unter in einer Serienfertigung nur schwer konstant zu haltenden Bedingungen vorgenommen werden muß.The disadvantages of this manufacture are that on the one hand the improved solders and those for application of the solder necessary organic binders a high proportion of the total manufacturing costs have, on the other hand, that solder connections arise that are more brittle than the stainless steel material and third, that the application of the solder under in serial production is difficult to keep constant holding conditions must be made.

Ein weiterer Nachteil ist es, daß man z. B. wellenförmige Folien oder Bleche, deren Lagen abwechselnd einen unterschiedlichen Winkel der Wellen zur Folienrichtung aufweisen, nur dann an den Auflagestellen beloten kann, wenn jeweils auch die Wellenberge in ihrer gesamten Länge belotet werden. Dies führt bei den nachfolgenden Wärmebehandlungen zur unerwünschten Veränderung der Ausgangslegierung von großen Flächenanteilen.Another disadvantage is that z. B. wavy Foils or sheets, the layers of which alternate a different angle of the waves to the film direction only at the support points can solder if the wave crests in be soldered along their entire length. This leads to the subsequent heat treatments to undesirable Change the starting alloy from large Proportion of space.

Aluminiumhaltige Edelstähle werden überwiegend für Bauteile verwendet, die Temperaturen von bis zu ca. 1100°C ausgesetzt werden. Der dazu notwendig hohe Aluminiumgehalt ist aber die Ursache für die schlechte Benetzbarkeit der Lote, so daß nach Stand der Technik nur wenige Nickelbasislote mit den geschilderten Nachteilen oder hoch edelmetallhaltige und damit für die Serienproduktion zu teure Lote verwendet werden können.Stainless steels containing aluminum are mainly used for Components used that have temperatures of up to exposed to approx. 1100 ° C. The necessary for this high aluminum content is the cause of that poor wettability of the solders, so that according to state technology only a few nickel-based solders with the described Disadvantages or high precious metal and thus solders that are too expensive for series production can be used.

Es ist Aufgabe der Erfindung, die geschilderten Nachteile zu vermeiden. It is an object of the invention, the disadvantages described to avoid.  

Es wurde nun überraschenderweise gefunden, daß man die Verbindung der Edelstahlfolien - Bleche oder - Drähte auch ohne zu löten herstellen kann.It has now surprisingly been found that one the connection of the stainless steel foils - sheets or - Can also make wires without soldering.

Die Aufgabe wird dadurch gelöst, daß die sich aus Edelstahlfolien und/oder Blechen und/oder Drähten, mit 3 bis 10% Aluminiumgehalt des Materials, zusammensetzenden Körper durch Diffusionsschweißzonen zusammengehalten werden.The task is solved in that the Stainless steel foils and / or sheets and / or wires, with 3 to 10% aluminum content of the material Body through diffusion welding zones be held together.

Es gelingt mit Hilfe eines besonders guten Vakuums von weniger als 10-4 mb und Temperaturen von ca. 1250°C bis 1370°C, vorzugsweise von 5×10-5 mb bei 1300°C die Lagen der Körper untereinander ohne Lot- oder Schweißzusatzmaterial zu verbinden.With the help of a particularly good vacuum of less than 10 -4 mb and temperatures of approx. 1250 ° C to 1370 ° C, preferably of 5 × 10 -5 mb at 1300 ° C, the layers of the bodies can be mutually without solder or welding filler material connect to.

Es hat sich als günstig herausgestellt, wenn Gas-Getter-Material im Vakuumofen mit vorhanden ist. Üblicherweise benutzt man hierzu seltene Erden, Legierungen, die überwiegend selbene Erden enthalten, oder auch Zirkon oder Titan. Preiswert ist der Einsatz von Titanschwamm, der gleichzeitig eine geeignet große Oberfläche aufweist.It has proven beneficial if gas getter material is also present in the vacuum oven. Usually rare earths are used for this, Alloys that contain mostly the same earths, or zircon or titanium. It is inexpensive Use of titanium sponge, which is also a suitably large surface.

Die Erfindung wird im folgenden anhand der Ausführungsbeispiele erläutert:The invention is described below with the aid of the exemplary embodiments explains:

1. Es wurde eine Folie aus AlSiCr - 5% Al, 22% Cr, 0,4% Si, 0,2% Zr, 0,05% Cer und andere Bestandteile mit jeweils weniger als 0,1%, Rest Eisen - mit einer Wanddicke von 50 µm und einer Breite von 75 mm wellig geprägt und zusammen sich abwechselnd mit einer ungeprägten Folie aufgewickelt. Des weiteren wurde ein Remanit-Rohrstück mit 2 mm Wandstärke an seiner zylindrischen Innenfläche durch Sandstrahlen von anhaftendem Zunder gereinigt und der Folienkörper eingepreßt. 1. A film made of AlSiCr - 5% Al, 22% Cr, 0.4% Si, 0.2% Zr, 0.05% cerium and other components each with less than 0.1%, the rest iron - with a wall thickness of 50 µm and a width 75 mm wavy and alternating together wrapped with an unembossed film. Furthermore, a Remanit pipe section with 2 mm Wall thickness on its cylindrical inner surface cleaned of adhering scale by sandblasting and pressed in the film body.  

Nach einer Entfettung im Ultraschallbad wurde der Körper in einen Induktions-Vakuumofen eingesetzt, der eine Leckrate von 10-5 (Hülltest) aufwies.After degreasing in the ultrasonic bath, the body was placed in an induction vacuum oven, which had a leak rate of 10 -5 (envelope test).

Es wurde bei 5 · 10-5 mb auf 1300°C erwärmt, die Temperatur 15 Mintuen konstant gehalten, anschließend schnell abgekühlt unter Inertgaszugabe.The mixture was heated at 5 × 10 -5 mb to 1300 ° C., the temperature was kept constant for 15 minutes, then quickly cooled with the addition of inert gas.

Es zeigt sich, daß die Folienlagen untereinander fest verschweißt waren, das Hüllrohr ebenfalls angeschweißt war und die Materialien metallisch blanke Oberflächen aufwiesen, die durch Wachstum der Körner des Metallgefüges eine erhöhte Rauhigkeit besitzen (gleichzeitiges thermisches Ätzen).It can be seen that the film layers are firmly attached to one another were welded, the cladding tube was also welded on was and the materials metallic bright surfaces exhibited by growth of the grains of the metal structure have an increased roughness (simultaneous thermal etching).

2. Es wurde eine Folie aus dem gleichen Material des ersten Ausführungsbeispiels so geprägt, daß die Wellen von 0,9 mm Höhe bei einer Teilung von 2 mm einen Winkel zwischen der Wellenrichtung und der Senkrechten auf die Folienrichtung von 3 Grad aufwiesen.2. There was a film made of the same material as the first Embodiment so shaped that the waves of 0.9 mm Height with a division of 2 mm an angle between the Wave direction and the perpendicular to the film direction of 3 degrees.

Die Folie wurde mit einer Gabel in der Mitte der Folienlänge aufgenommen und gewickelt.The film was placed with a fork in the middle of the film length picked up and wrapped.

Im weiteren wurde wie im ersten Anwendungsbeispiel verfahren, wobei aber der Vakuumproduktionsofen (Widerstandsofen) zusätzlich mit (3 gr/Liter Ofenvolumen) Titanschwamm bestückt war.The procedure was as in the first application example, but with the vacuum production furnace (resistance furnace) additionally with (3 gr / liter furnace volume) titanium sponge was equipped.

Die Kontaktzonen der Wellen waren ebenso fest miteinander verschweißt, wie die des ersten Ausführungsbeispiels.The contact zones of the waves were just as tight with each other welded like that of the first embodiment.

3. Es wurde mit Hilfe einer Vorrichtung zur Herstellung amorpher Metallbänder (Walzenguß) ein drahtähnliches Band hergestellt mit einem Querschnitt von etwa 50×50 . . . 100 µm. Die Legierungszusammensetzung entsprach der des ersten Ausführungsbeispiels. Das Band wurde nach Entfettung in einem flachen Remanit-Ring (Höhe 20 mm) regellos zusammengelegt und mit zwei kreisförmigen, nicht entzunderten Platten aus Remanit zusammengedrückt in den Ofen nach Beispiel 2 eingesetzt, im weiteren aber nach Beispiel 1 verfahren. 3. It was made using a manufacturing device amorphous metal strips (roller casting) a wire-like strip made with a cross section of about 50 × 50. . . 100 µm. The alloy composition corresponded to that of the first exemplary embodiment. The tape was degreased in one flat Remanit ring (height 20 mm) randomly folded and with two circular, descaled plates Remanit compressed in the furnace according to Example 2, but proceed according to example 1 below.  

Es zeigte sich, daß ein gewebeähnlicher Körper entstanden war, bei dem die Kontaktstellen des Drahtes sowie das Drahtgeflecht am Außenring fest miteinander verschweißt waren.It turned out that a tissue-like body had emerged, where the contact points of the wire as well as the wire mesh were firmly welded together on the outer ring.

Diese Ausführung kann als Rußfilter für Dieselmotoren Verwendung finden.This version can be used as a soot filter for diesel engines Find.

Die zur Erläuterung eines Ausführungsbeispiels der Erfindung dienenden Zeichnungen zeigen folgendesThose used to explain an embodiment of the invention Drawings show the following

Fig. 1 den Aufbau eines Körpers mit einer Wellenfolie und einer glatten Folienzwischenlage, Fig. 1 shows the structure of a body with a wave film and a smooth foil liner,

Fig. 2 eine andere Ausführungsart eines Körpers mit einer Folie und Fig. 2 shows another embodiment of a body with a film and

Fig. 3 einen Körper aus regellos zusammengesetzten Drähten. Fig. 3 shows a body made of randomly assembled wires.

Die Körper nach den Fig. 1 bis 3 sind von einem Hüllrohr 1 umgeben. Nach Fig. 1 - Ausführungsbeispiel 1 - besteht er aus einer Wellenfolie 2, zwischen deren einzelnen Lagen sich eine nichtgeprägte, glatte Folie 3 befindet. Die Berührungszonen 4, in denen sich die glatte Folie 3 und die Wellenfolie 2 berühren, sind miteinander verschweißt, ebenso die Berührugnszonen 4 zwischen der Wellenfolie 2 und dem Hüllrohr 1.The bodies according to FIGS. 1 to 3 are surrounded by a cladding tube 1 . According to Fig. 1 - embodiment 1 - it consists of a corrugated film 2 , between the individual layers of which there is a non-embossed, smooth film 3 . The contact zones 4 , in which the smooth film 3 and the corrugated film 2 touch, are welded to one another, as are the contact zones 4 between the corrugated film 2 and the cladding tube 1 .

Nach Fig. 2 - Ausführungsbeispiel 2 - ist der Körper aus einer Wellenfolie 2 so aufgebaut, daß die aufeinanderliegenden Lagen der Folien bezüglich der Längsrichtung der Wellen kleine Winkelabweichungen gegeneinander aufweisen. Der Winkel 5 zwischen der Wellenrichtung 6 und der Senkrechten 7 auf der Folienrichtung beträgt 3 Grad. Die Berührungszonen 4 zwischen den einzelnen Lagen der Wellenfolie 2 untereinander und der Wellenfolie 2 mit dem Hüllrohr 1 sind verschweißt.According to FIG. 2 - embodiment 2 - the body is constructed from a corrugated film 2 such that the layers of the films lying one on top of the other have small angular deviations with respect to the longitudinal direction of the waves. The angle 5 between the wave direction 6 and the perpendicular 7 on the film direction is 3 degrees. The contact zones 4 between the individual layers of the wave film 2 with each other and the wave film 2 with the cladding tube 1 are welded.

Bei dem Körper nach Fig. 3 - Ausführungsbeispiel 3 - sind die regellos zusammengelegten Drähte 8 in den Berührungszonen 4 miteinander und mit dem Hüllrohr 1 verschweißt. In the body according to Fig. 3 - Embodiment 3 - are the irregularly folded wires 8 are welded in the contact zones 4 together and to the casing tube. 1

  • Bezugszeichenliste 1 Hüllrohr
    2 Wellenfolie
    3 nichtgeprägte, glatte Folie
    4 Berührungszonen
    5 Winkel
    6 Wellenrichtung
    7 Senkrechte auf der Folienrichtung
    8 Drähte     1 Sheath tube
    2 wave foil
    3 non-embossed, smooth foil
    4 contact zones
    5 angles
    6 shaft direction
    7 Vertical on the film direction
    8 wires

Claims (4)

1. Körper, die von Folien, Blechen und/oder Drähten mit Wandstärken von bis zu 4 mm gebildet werden, gekennzeichnet durch die Kombination von a) mit b).
  • a) Die dünnwandigen Lagen bestehen aus einem Edelstahl, der 3 bis 10% Aluminium enthält,
  • b) die Lagen sind untereinander durch Schweißzonen (4) verbunden.
1. Bodies, which are formed by foils, sheets and / or wires with wall thicknesses of up to 4 mm, characterized by the combination of a) with b).
  • a) The thin-walled layers consist of a stainless steel that contains 3 to 10% aluminum,
  • b) the layers are interconnected by welding zones ( 4 ).
2. Körper nach Anspruch 1, dadurch gekennzeichnet, daß die äußere der miteinander verschweißten Lagen auch mit einem Hüllrohr (1) verschweißte Bereiche (4) aufweist.2. Body according to claim 1, characterized in that the outer of the welded layers also with a cladding tube ( 1 ) welded areas ( 4 ). 3. Verfahren zur Herstellung der Körper nach den vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß die Schweißung in einem Ofen vorgenommen wird, der nach Hülltest eine Leckrate von 10-5 aufweist.3. A method for producing the body according to the preceding claims, characterized in that the welding is carried out in an oven which has a leak rate of 10 -5 after the envelope test. 4. Verfahren nach Anspruch 3, dadurch gekennzeichent, daß die Materialien Titan und/oder Zirkon und/oder Cer und/oder Lanthan und/oder Legierungen aus diesen mit weiteren Metallen als Getter-Material zusätzlich zu den Körpern im Ofen angeordnet werden.4. The method according to claim 3, characterized in that the Materials titanium and / or zircon and / or cerium and / or lanthanum and / or alloys of these with other metals arranged as a getter material in addition to the bodies in the oven will.
DE19863608120 1986-03-12 1986-03-12 Bodies of thin-walled, aluminium-containing stainless steel Withdrawn DE3608120A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863608120 DE3608120A1 (en) 1986-03-12 1986-03-12 Bodies of thin-walled, aluminium-containing stainless steel

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DE19863608120 DE3608120A1 (en) 1986-03-12 1986-03-12 Bodies of thin-walled, aluminium-containing stainless steel

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DE3608120A1 true DE3608120A1 (en) 1987-09-17

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437626A1 (en) * 1989-08-04 1991-07-24 Showa Aircraft Industry Co., Ltd. Heat resistant structure and method of manufacture thereof
DE4142533A1 (en) * 1991-12-21 1993-06-24 Emitec Emissionstechnologie METHOD FOR SOLDERING SUPPORTING BODIES OF EXHAUST GAS CATALYSTS
EP0683305A3 (en) * 1994-05-21 1997-03-26 Schmitz & Brill Fa Method of manufacturing a component for exhaust device of motor vehicles.
CN108625957A (en) * 2018-07-03 2018-10-09 天纳克（苏州）排放系统有限公司 Engine exhaust post-processes mixing arrangement and its manufacturing method
CN108625956A (en) * 2018-07-03 2018-10-09 天纳克（苏州）排放系统有限公司 Engine exhaust post-processes mixing arrangement and its after-treatment device and application

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437626A1 (en) * 1989-08-04 1991-07-24 Showa Aircraft Industry Co., Ltd. Heat resistant structure and method of manufacture thereof
EP0437626A4 (en) * 1989-08-04 1992-12-09 Showa Aircraft Industry Co., Ltd. Heat resistant structure and method of manufacture thereof
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