Patent ID: 8729436
Filing Date: 2014-05-20
Classification: B28B,F26B

Abstract:
1. A method for drying a honeycomb structure comprising: providing the honeycomb structure having an original liquid vehicle content; exposing the honeycomb structure to a first electromagnetic radiation until the liquid vehicle content is between about 20% and about 60% of the original liquid vehicle content, so that the honeycomb structure is partially dried; exposing the partially dried honeycomb structure to a second electromagnetic radiation different from the first electromagnetic radiation until the liquid vehicle content is between about 0% and about 30% of the original liquid vehicle content, so that the honeycomb structure is at least partially dried; exposing the at least partially dried honeycomb structure to convection heating until the liquid vehicle content is between about 0% and about 10% of the original liquid vehicle content; and wherein the first electromagnetic radiation comprises microwave radiation, and wherein the second electromagnetic radiation comprises radio frequency radiation.