To provide an extrusion molding apparatus which can extrusion-mold a ceramic molding of high homogeneity.
The extrusion molding apparatus has a molding mold for molding a ceramic molding and a screw extruder having an extrusion screw 40 which kneads a ceramic material and leads it forward. The extrusion screw 40 has a pressurization screw section 410 comprising the first reed 411 and a spreading screw section 420 comprising the second reed 421 adjacent to the tip part 412 of the pressurization screw section 410. The second reed 421 is formed so that the rear end 422 of all the second reed surface 426 in the rear end part 422 of the spreading screw section 420 and the tip of the first read surface 416 in the tip part 412 of the pressurization screw section 410 are shifted.
MIURA YASUNAO
KATO HIROKI
Tamiwa Iwakura