METHOD AND APPARATUS FOR MOLDING EXTRUSION MOLDING

摘要

PURPOSE: To provide a coating layer on the inner surface of the hollow part of an extrusion molding or the surface where a molding material is brought into contact with a pressure fluid of a recessed part. CONSTITUTION: A barrel kneading a molding material to extrude the same, the molding die and core metal 2 arranged to the leading end part of the barrel and a film forming member supply device 7 supplying a film forming member from the interior of the core metal 2 are provided and a pressure fluid containing the film forming member is applied to the inner surface of the hollow part of a molding or at least one surface of the molded product in an extrusion molding process to form a coating film.