| 20090142494 | Process for Producing Honeycomb Bodies for Thermal Regenerators - A process for producing a honeycomb body from a noncatalytically active ceramic material for thermal regenerators, comprising the steps of (a) providing a block-shaped monolithic honeycomb body created by extrusion that includes in its interior longitudinal channels; (b) applying a thermal pretreatment to the honeycomb body; (c) after step (b), coating or masking the outer walls of the honeycomb body with a glaze-repellent coating, coating all the longitudinal channels of the honeycomb body with a glaze, and then drying the honeycomb body; and (d) after step (c), performing a firing operation at a temperature typical for the glazed material. | 06-04-2009 |
