PRESSURE CASTING DIE INLET NOZZLE OF DIAMOND-LIKE INTERNAL GEOMETRY AND MULTI-PARTITE PRESSURE CASTING DIE INLET NOZZLE OF VARIABLE EFFECTIVE INLET ANGLES AS WELL AS METHOD OF CONTROLLING MOLTEN METAL FLOW THROUGH SUCH NOZZLE BY VARYING SUCH INLET ANGLES

摘要

The present invention relates to a casting nozzle (140,170) for flowing liquid metal therethrough comprising: an elongated bore having a central axis (CL) and at least one entry port (141) and at least one exit port (146,148,176,182), the bore including an enlarged portion to provide the bore with greater cross-sectional area near the central axis than near the edges of the bore, the enlarged portion including at least two bending facets (144a,144b,174), each of which extends from a point on a plane which is substantially parallel to and intersects the central axis, toward a lower edge of the bore. ??This casting nozzle is more effective to, utilize the available space within a bulged or crown shaped mold and promotes an improved flow pattern therein. IMAGE IMAGE