| 摘要 |
A process is disclosed for manufacturing a honeycombed body, preferably a catalyst support body, made of stacked and/or wound high temperature and corrosion resistant sheet metal layers (2, 3) that have at least in part a structure that form channels through which a fluid can flow. The honeycombed body is made by winding or stacking different sheet metal types. Some of the sheet metal layers (2) consist of substantially homogeneous, chromium- and aluminium-containing steel. Other sheet metal layers (3) have a stratified layer with at least one first layer (4) of chromium-containing steel and at least one second, aluminium-containing layer (5, 6). The sheet metal layers are joined by a thermal process and the sheet metal layers (3) with a stratified structure are homogenised by diffusion. By using different types of sheet metal, the sheet metal layers are solidly joined even though the sheet metal layers with a stratified structure may shrink during the thermal process.
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