There is still room for improvement in the mechanical properties of our common plastic materials. In this process the melt is pressed in and out of the mould during solidification, resulting in an orientation of both fibres and molecules along the direction of the movement. By keeping the molten polymer in laminar motion during solidification, injection-moulded products acquire an oriented structure throughout the volume. This structure is highly anisotropic, giving the products higher stiffness along the fibres and the molecules. Stronger product Glass fibre reinforced polyamide is a material well suited for this method.
Possible applications are automobile parts, aerospace and electronics components.
Such information is of vital importance when optimal production parameters for the push-pull injection moulding have to be determined.