Denso Corporation

Nobutoshi Matsui

Satoru Yamaguchi

Hiromi Katou

Masakazu Murata

Toshiaki Tanida

Seiichi Fukaya

An apparatus for producing a ceramic molding having a desired shape by extruding a ceramic material includes a screw type extruder and mold connected to the distal end of the extruder through a resistance pipe. The ceramic material is pressure-fed from the extruder into the resistance pipe and is heated or cooled from round the periphery of the resistance pipe to control the shape of the ceramic molding extruded from the mold.

Apparatus for producing ceramic moldings

A method of producing a ceramic molding having a desired shape involves extruding a ceramic material that has been pressure-fed into a resistance pipe. By using a production apparatus including a screw type extruder and mold, connected to the distal end of the extruder through the resistance pipe, the ceramic material is pressure-fed from the extruder into the resistance pipe. The resistance pipe is heated or cooled at its periphery so as to control the shape of the ceramic molding extruded from the mold.

Production method of ceramic moldings

Apparatus for forming a honeycomb structure capable of adjusting a shaping speed of an outer skin of the honeycomb structure, thereby preventing a defect in the skin. The shaping device is constructed by a die (10) having slits (11) for formation of a honeycomb structure and a guide ring (2) arranged downstream of the die (11). The guide ring includes an opening with an inner edge (21) and includes at a location upstream from the edge a pool portion (22) for the formation of a skin of the honeycomb structure. A temperature controller (3) is arranged in the guide ring for controlling a heating on a cooling of a ceramic material held in the pool portion (22).

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Nagoya, Japan

Nobutoshi Matsui