DE102006056483B4

DE102006056483B4 - metal support

Info

Publication number: DE102006056483B4
Application number: DE102006056483.9A
Authority: DE
Inventors: Patentinhaber gleich
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-30
Filing date: 2006-11-30
Publication date: 2017-03-09
Anticipated expiration: 2026-12-01
Also published as: DE102006056483A1

Abstract

Metallträger dadurch gekennzeichnet, dass seine Kontur eine (Archimedische) Spirale darstellt wobei ihre Spiralwindungen mit einer Metallfolie gebildet werden, die mit einem Draht umwickelt ist.Metal support characterized in that its contour represents an (Archimedean) spiral, wherein its spiral turns are formed with a metal foil which is wrapped with a wire.

Description

Die Erfindung betrifft Metallkatalysatoren, insbesondere Abgaskatalysatoren, und zwar Bauformen und Fertigungsverfahren ihrer Träger.The invention relates to metal catalysts, in particular catalytic converters, namely designs and manufacturing methods of their carrier.

Die bekannten Metallträger sind mit mehrschichtigen in einige S-förmige gewickelte Kompositionen gebildet, wobei jede Komposition aus mehrschichtigen wellenartigen und glatten (kartonartig) verlöteten Stahlfolien besteht. Der Nachteil dieser Träger ist ein großer Unterschied der Aufheizzeit in den Knoten (diese Zeit bestimmt die Aufheizzeit vom Katalysator) – Verlötstellen-Kreuzungen der wellenartigen und glatten Stahlfolien – und zwischen ihnen. Die Verwendung der wellenartigen Stahlfolien und deren Verlöten verteuern Metallkatalysatoren sowie begrenzen Foliendicke und Zelldichte.The known metal carriers are formed with multilayered wound into some S-shaped compositions, each composition consists of multi-layered wave-like and smooth (cardboard-like) soldered steel sheets. The disadvantage of these carriers is a large difference in the heating time in the nodes (this time determines the heating time of the catalyst) - soldering intersections of the wave-like and smooth steel foils - and between them. The use of corrugated steel foils and their brazing more expensive metal catalysts and limit film thickness and cell density.

Eine erste Aufgabe der Erfindung ist das Erschaffen eines Metallträgers, der eine rasche und gleichmäßige Aufheizzeit an jedem Ort des Trägerquerschnitts sowie niedrigeren Abgasgegendruck aufweist.A first object of the invention is to provide a metal carrier which has a rapid and uniform heating time at each location of the carrier cross-section as well as lower exhaust counterpressure.

Diese Aufgabe wird dadurch gelöst, dass der Metallträger dadurch gekennzeichnet ist, dass seine Kontur eine (Archimedische) Spirale darstellt wobei ihre Spiralwindungen mit einer Metallfolie gebildet werden, die – zwecks Fixierens der Abstände zwischen den Windungen – mit einem Draht umwickelt ist. Dabei ist dieser Draht aus gleichem/ähnlichem Metall, wie das Metall der Windungen, ausgeführtThis object is achieved in that the metal support is characterized in that its contour represents an (Archimedean) spiral, wherein its spiral turns are formed with a metal foil which is wound with a wire in order to fix the distances between the turns. In this case, this wire is made of the same / similar metal as the metal of the turns executed

Im Querschnitt stellt die Trägerkontur die Archimedische Spirale dar. Ihr charakteristisches Merkmal: Aufeinanderfolgende Spiralwindungen haben gleichen Abstand voneinander. Dieser Abstand wird dank dem Einsatz des umwickelnden Drahts zwischen den Windungen erreicht. Der Windungsgang dieses Drahts und seine Maße sollen so ausgewählt werden, dass eine Verziehung der Spiralwindungen vermieden wird.In cross section, the carrier contour represents the Archimedean spiral. Its characteristic feature: successive spiral turns are equally spaced. This distance is achieved thanks to the use of the wrapping wire between the turns. The winding course of this wire and its dimensions should be selected so as to avoid distortion of the spiral turns.

Eine zweite Aufgabe der Erfindung ist das Erschaffen des Fertigungsverfahrens des vorgeschlagenen Trägers, welches niedrigere Fertigungskosten aufweist.A second object of the invention is to create the manufacturing method of the proposed carrier which has lower manufacturing costs.

Diese Aufgabe wird dadurch gelost, dassThis task is solved by that

1. Lösung1st solution

- Includes the manufacturing process
Catalytic coating of a non-ferrous metal foil in a catalytic throughput bath;
- catalytic coating of a wire;
- unwrapping the coated non-ferrous metal foil and wrapping with the wire;
- rolling the wrapped non-ferrous metal foil;
- Winding the wrapped non-ferrous metal foil on a rod or winding around a corresponding axis with the formation of the (Archimedean) spiral;
- Heating of the carrier in its working temperature range.

2. Lösung2nd solution

- Includes the manufacturing process
Unwinding a non-coated non-ferrous metal foil and wrapping with a wire;
- rolling the wrapped non-ferrous metal foil;
Winding the wrapped non-ferrous metal foil onto a rod or winding it around a corresponding axis with the formation of the (Archimedean) spiral;
- Heating of the carrier in its working temperature range;
- catalytic coating of the carrier.

3. Lösung3rd solution

- Includes the manufacturing process
Unwinding a washcoat coated non-ferrous metal foil and wrapping with a wire;
- rolling the wrapped non-ferrous metal foil;
Winding the wrapped non-ferrous metal foil onto a rod or winding it around a corresponding axis with the formation of the (Archimedean) spiral;
- Heating of the carrier in its working temperature range;
- catalytic coating of the carrier.

Da der vorgeschlagene Träger keine Knoten hat, wird der Abgasgegendruck niedriger, und es findet eine rasche, gleichmäßige Aufheizzeit an jedem Ort des Trägerquerschnitts statt.Since the proposed carrier has no nodes, the exhaust back pressure is lower, and there is a rapid, uniform heating time at each location of the carrier cross-section instead.

Auf der Abbildung ist das Umwickeln einer Folie mit einem Draht bei ihrem Auswickeln dargestellt.The illustration shows wrapping a film with a wire as it is being unwrapped.

Claims

Metal support characterized in that its contour represents an (Archimedean) spiral, wherein its spiral turns are formed with a metal foil which is wrapped with a wire.

Manufacturing method of a carrier according to claim 1, characterized in that it includes - catalytic coating of a non-ferrous metal foil in a catalytic flow- through bath; - catalytic coating of a wire; - unwrapping the coated non-ferrous metal foil and wrapping with the wire; - rolling the wrapped non-ferrous metal foil; - Winding the wrapped non-ferrous metal foil on a rod or winding around a corresponding axis with the formation of the (Archimedean) spiral; - Heating of the carrier in its working temperature range.

Manufacturing method of a carrier according to claim 1, characterized in that it includes - unwinding a non-coated non-ferrous metal foil and wrapping with a wire; - rolling the wrapped non-ferrous metal foil; Winding the wrapped non-ferrous metal foil onto a rod or winding it around a corresponding axis with the formation of the (Archimedean) spiral; - Heating of the carrier in its working temperature range; - catalytic coating of the carrier.

Manufacturing method of a carrier according to claim 1, characterized in that it includes - unwrapping a washcoat coated non-ferrous metal foil and wrapping with a wire; - rolling the wrapped non-ferrous metal foil; Winding the wrapped non-ferrous metal foil onto a rod or winding it around a corresponding axis with the formation of the (Archimedean) spiral; - Heating of the carrier in its working temperature range; - catalytic coating of the carrier.