Process for producing a honeycomb body with a flange piece for a measurement sensor, and corresponding hnoneycomb body
First Claim
1. A process for producing a honeycomb body, which comprises the following steps:
- a) producing a tubular casing from sheet metal;
b) introducing a hole, delimited by a rim, into the sheet metal of the tubular casing at a predetermined location;
c) fitting a flange piece for a measurement sensor to the hole rim in the tubular casing;
d) introducing a honeycomb structure into the tubular casing;
e) joining the tubular casing to the honeycomb structure and the flange piece by brazing or welding in a single, common, heat treatment process; and
carrying out steps a), b) and c) in any desired order.
2 Assignments
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Accused Products
Abstract
A process for producing a honeycomb body includes a) producing a tubular casing from sheet metal; b) introducing a hole, delimited by a rim, into the sheet metal; c) fitting a flange piece for a measurement sensor to the hole rim; d) introducing a honeycomb structure into the tubular casing; and e) joining the tubular casing to the honeycomb structure and the flange piece by brazing or welding in a single, common, heat treatment process. Steps a), b) and c) are carried out in any desired order. A honeycomb body includes a honeycomb structure. A tubular casing surrounds the honeycomb structure, has a hole delimited by a rim, and has a necked region surrounding the hole. A flange piece for a measurement sensor is brazed to the hole rim. The process allows a flange piece to be connected to the tubular casing in an advantageous manner as part of an on-going heat treatment process, resulting in a simple and fast production and consequently a reduction of costs.
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Citations
16 Claims
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1. A process for producing a honeycomb body, which comprises the following steps:
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a) producing a tubular casing from sheet metal;
b) introducing a hole, delimited by a rim, into the sheet metal of the tubular casing at a predetermined location;
c) fitting a flange piece for a measurement sensor to the hole rim in the tubular casing;
d) introducing a honeycomb structure into the tubular casing;
e) joining the tubular casing to the honeycomb structure and the flange piece by brazing or welding in a single, common, heat treatment process; and
carrying out steps a), b) and c) in any desired order. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A honeycomb body, comprising:
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a honeycomb structure;
a tubular casing surrounding said honeycomb structure, said tubular casing having a hole delimited by a rim, and said tubular casing having a necked region surrounding said hole; and
a flange piece for a measurement sensor, said flange piece being brazed to said hole rim. - View Dependent Claims (15, 16)
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Specification