Patent ID: 8206787
Filing Date: 2012-06-26
Classification: B28B,C04B,F28F

Abstract:
1. A process for producing a honeycomb body from a noncatalytically active ceramic material for thermal regenerators, the process comprising the steps of: (a) providing a block-shaped monolithic honeycomb body created by extrusion, the honeycomb body having an interior formed with longitudinal channels; (b) applying a thermal pretreatment to the honeycomb body, whereby the honeycomb body includes surface pores; (c) after step (b), applying a glaze-repellent coating to outer walls of the honeycomb body, coating a glaze to all the longitudinal channels of the honeycomb body, and then drying the honeycomb body; and (d) after step (c), performing a firing operation to the glaze to anchor the glaze in the surface pores, wherein the glaze comprises 65% SiO