Molding material and manufacturing method thereof for extrusion foaming, and woody foamed molded body manufactured using the molding material, the method for producing a woody molded foam product and manufacturing apparatus

A by obtaining a molding material for extrusion foam molding which can obtain a high-quality wood foamed molded to produce high-quality wood foamed molded without defects efficiently. A mainly composed of wood flour and thermoplastic resin, the molecular weight of the construction material containing 1-5 wt% alkanes 300~1000g / mol, it was melt-kneaded until a state where each component is uniformly dispersed obtaining a molded material formed as a granulated pellet predetermined particle size after. Then, obtain a woody molded foam product is extruded into a predetermined shape by extrusion molding apparatus with the molding compositions blowing agent. Upon extrusion, is introduced into the forming chamber 31 of the molding die 30 while maintaining a state in which a molding material 25a is pressurized extruded from the extruder 12, the molding material during transfer into the molding chamber 31 of the molding die 30 it is preferable to relieve pressure of 25a produces a foaming of the molding material 25a. .The