| 摘要 |
PROBLEM TO BE SOLVED: To provide a screw head capable of smoothly conveying a molten resin composed of a composite material in a cylinder into a nozzle while homogeneously mixing in an injection molding machine having a groove inclined to an axial center of a screw on a tip part.SOLUTION: A screw head capable of smoothly conveying a molten resin into a nozzle while homogeneously mixing is obtained by providing a groove 4 inclined to an axial center of a screw with a proper angle on a surface of the screw head 2, and forming a proper cross-sectional area change in the groove. |
