公开(公告)号：WO2020159685A1

公开(公告)日：2020-08-06

申请号：PCT/US2020/012845

申请日：2020-01-09

Applicant: CORNING INCORPORATED

Inventor： CHATLANI, Shyam Lekhraj ,  GROHSMEYER, Ryan Joseph ,  MALARKEY, Christopher John ,  RECTOR, John Charles

IPC: B28B3/26 ,  B28B17/00 ,  B29C48/11 ,  B29C48/25 ,  B28B7/34

Abstract: Methods for extruding a ceramic-forming mixture through a honeycomb extrusion die (10), methods for forming a green honeycomb extrudate from a ceramic-forming mixture, methods of preparation of a honeycomb extrusion die (10) that extrudes a ceramic-forming mixture, and systems including a honeycomb extrusion die (10), ceramic-forming mixture, and abrasive flow media. The method of extruding a ceramic-forming mixture through a honeycomb extrusion die (10) includes conditioning the honeycomb extrusion die (10) by extruding an abrasive flow media through the slots (20) of the die (10) prior to extruding the ceramic-forming mixture through the slots (20) of the die (10). The abrasive flow media includes abrasive inorganic particles dispersed in a flowable carrier. The ceramic-forming mixture includes one or more types of inorganic ceramic-forming particles. The abrasive inorganic particles in the flowable carrier have a particle size distribution that corresponds to that of at least one type of the ceramic-forming particles in the ceramic-forming mixture.