Patent ID: 8435025
Filing Date: 2013-05-07
Classification: B23P,B28B,B29C,B29K,B29L,Y10T

Abstract:
1. A honeycomb extrusion die apparatus including a die body, the die body comprising: an inlet end; a discharge end opposite the inlet end in an extrusion direction; an inlet region beginning at the inlet end and defining a plurality of feedholes extending from the inlet end; and a discharge region terminating at the discharge end, the discharge region including a plurality of die pins with each die pin including an end face positioned along a discharge face of the die body, the die pins including side walls defining an intersecting array of discharge slots extending into the die body from the discharge face, each discharge slot including an open end and an expanded area defined between corresponding side walls of adjacent die pins, wherein the expanded area is flared inwardly in the extrusion direction and wherein the discharge slots connect with the feed holes at feed hole and discharge slot intersections at an interface within the die body between the inlet region and the discharge region, wherein the open end of at least some of the discharge slots defined by the second set of die pins intersect the expanded area of the corresponding discharge slot.