SCREW STRUCTURE FOR MOLDING MACHINE OF LIQUID CRYSTAL RESIN COMPOSITE MATERIAL

摘要

PURPOSE: To suppress the fracture of a liquid crystal fiber by the operation of a shearing force in the step of plasticizing to melt a matrix resin by suppressing the relative movement between a solid bed and a melt film and the depth of the penetration from the bed into the film. CONSTITUTION: The structure of the screw 10 for a molding machine 1 plasticizes to melt a molding material PT in which a thermoplastic liquid crystal resin having a higher liquid crystal transition temperature than the lowest moldable temperature of a thermoplastic matrix resin in the thermtoplastic matrix resin is compounded in fibrous state at a temperature of the range from the lowest moldable temperature of the matrix resin or more to lower than the liquid crystal transition temperature of the liquid crystal resin. When the molding material is plasticized to be melted, a solid bed floating expediting means for expediting the floating of the bed in the plasticized melted resin is provided.