METHOD FOR EXTRUSION MOLDING

摘要

PROBLEM TO BE SOLVED: To provide a method for extrusion molding ceramics capable of im proving a dimensional accuracy of a composite shape molding such as a honey comb or the like by a simple method. SOLUTION: Mixed soil containing ceramics having a shearing stress of 1.5 to 3.0 MPa when a shearing speed is 500 s-1 by a capillary rheometer evaluation at 20 deg.C is extruded so that a temperature of the molding immediately after the extrusion is 30 deg.C or below and a temperature difference between an outer peripheral temperature Ta and a central part temperature Tb of the molding becomes 1 deg.C<=Ta-Tb<=5 deg.C.