Patent ID: 8808601
Filing Date: 2014-08-19
Classification: B28B

Abstract:
1. A method for manufacturing a honeycomb ceramic wall flow filter comprising: mixing flowable ceramic plugging cement to a viscosity not more than 80% above a shear-thinned minimum for the cement composition to form a shear-conditioned flowable ceramic plugging cement; introducing a charge of the shear-conditioned flowable ceramic plugging cement into a cement chamber occupied by a piston; and injecting a controlled portion of the charge of the flowable ceramic plugging cement from the cement chamber occupied by the piston into ends of selected channels of a honeycomb body, wherein the mixing the flowable ceramic plugging cement to a viscosity not more than 80% above a shear-thinned minimum for the cement composition is spaced apart from the ends of the channels of the honeycomb body by at least the cement chamber, and wherein the shear-conditioned flowable ceramic plugging cement is static for a period of time in the cement chamber.