Injection molding method for molding molded product, molded product produced by injection molding, and injection mold

摘要

PROBLEM TO BE SOLVED: To provide a method for controlling mold temperature, which does not cause molding defects in injection molding of a fiber-reinforced resin, such as incomplete filling, glossiness failure and the occurrence of weld.SOLUTION: The present invention relates to a method for the production of injection-molded, reinforced molded articles, the fiber orientation of which is specifically adjusted on a local basis. Via suitable, dynamically controlled supplementary heating in the wall of an injection mold which is used (variotherm heatable channel), a local cavity region is hereby heated at the time of injection to a temperature in the region of or above the solidification temperature (in any case above the crystallisation temperature in the case of partially crystalline plastic materials or above the glass transition temperature in the case of amorphous plastic materials) of the polymer (plastic material molding compound).SELECTED DRAWING: None