ULTRASONIC INJECTION MOLD

摘要

PROBLEM TO BE SOLVED: To provide an ultrasonic injection mold capable of further enhancing a high transfer property, a low shrinkage factor and low double refraction only by applying simple improvement to the mold and enabling the injection molding of a large-sized molded article. SOLUTION: In an ultrasonic injection mold having a movable mold 4 and a fixed mold 3 between which a cavity is formed and the ultrasonic wave generation means 7 attached to the movable mold 4 or fixed mold 3 in order to apply ultrasonic waves to the cavity at a time of injection molding, notches 20 are formed to one places or a plurality of places of the movable mold 4 and the fixed mold 3 to provide thin-walled parts. Lateral vibration and/or radial vibration transmitted in the radial direction of the cavity may be generated from the ultrasonic generation means 7 other than vertical vibration.