Process for the production of a brazed honeycomb body using shee

Details Process for the production of a brazed honeycomb body using shee Process for the production of a brazed honeycomb body using shee

1998-02-23

2000-11-07

Wyszomierski, George

Metal treatment

Process of modifying or maintaining internal physical...

Producing or treating layered, bonded, welded, or...

148534, 148535, 228181, 22826242, C21D 950

Patent

active

061430994

ABSTRACT:
A process for the production of a brazed honeycomb body with sheets having a layer-like configuration, includes stacking and/or winding sheet metal layers at least partially having a structure for forming passages through which a fluid can flow. At least a portion of the sheet metal layers is initially formed of a layered material having at least one layer of chromium-containing steel and at least one substantially aluminum-containing layer. The aluminum-containing layer is substantially homogenized in a later heat treatment and the heat treatment is effected firstly under a vacuum or in a reducing and then an oxidizing atmosphere. The heat treatment is part of a brazing procedure in which contact locations between the sheet metal layers are brazed together at least in partial regions by the addition of brazing material.

REFERENCES:
patent: 3605255 (1971-09-01), Metzger et al.
patent: 3769101 (1973-10-01), Woodward
patent: 4602001 (1986-07-01), Cyron
patent: 4658437 (1987-04-01), Bose et al.
patent: 4713217 (1987-12-01), Stern
patent: 5366139 (1994-11-01), Jha et al.

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