METHOD OF MANUFACTURING WATER ABSORPTIVE CERAMICS

摘要

PROBLEM TO BE SOLVED: To provide a method of manufacturing water absorptive ceramics by which the water absorptive ceramics having homogeneous pore structure is obtained and the material cost is suppressed low. SOLUTION: Base raw materials 1 such as clay and silica sand in which water is adjusted are mixed in a feeder 2, passed through a coarse crusher 3 to form a green base, and fed to a pipe making apparatus 4. The green base is extruded from the pipe making apparatus 4 by being pressurized to form a green molding 5 which is sufficiently dried to be fired. When the dried molding is fired in a firing furnace 6 such as a single furnace or a tunnel furnace, a pore forming component vanished in the firing and forming pores and an inorganic component sintered or fused with the ceramic raw material are contained in the green base composed of the ceramic raw material. The granulated pore forming agent 11 is blended and mixed in the feeder 1 or the coarse crusher 3 before the pipe making process. COPYRIGHT: (C)2003,JPO