METHOD AND APPARATUS FOR EXTRUSION MOLDING OF SYNTHETIC WOOD BOARD.

摘要

A method of extrusion molding for a synthetic wood board wherein a cellulose crushed material of 20 to 75 wt percent is mix in a thermoplastic resin material; said mixed material is kneaded by heating; said kneaded material is squeezed into a molding die by a screw or screws; and said extruding material squeezed into said molding die is squeezed into a molding portion of said molding die including an inner wall surface thereof, being formed by lining with a fluororesin thereon, so as to extrude said extruding material with a predetermined thickness, while cooling slowly in said molding portion.