Method of modifying a honeycomb-structure-forming extrusion die and modified extrusion dies
AssigneeCorning Incorporated
InventorsDouglas Munroe Beall, Kenneth Richard Miller, David John Thompson
Life of this patent
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Abstract
Methods of manufacturing honeycomb-structure-forming extrusion dies having a number of slots for use in producing extruded articles having complex honeycomb patterns and extrusion dies for use in the manufacture of extruded honeycomb bodies. The method includes inserting a die insert having a runner and a number of teeth into a slot of an extrusion die such that each of the teeth blocks at least a portion of the slot of the extrusion die. The method further includes separating the runner from the teeth so that the teeth remain within the slot of the extrusion die.
Claims30
A method of manufacturing a honeycomb-structure-forming extrusion die having a plurality of slots, comprising:
- inserting a die insert comprising a runner and a plurality of teeth into a slot of the plurality of slots of the extrusion die such that each of the plurality of teeth blocks at least a portion of the slot;
- and
- separating the runner from the plurality of teeth such that the plurality of teeth remain within the slot of the plurality of slots of the extrusion die.
A method of manufacturing a honeycomb-structure-forming extrusion die having a plurality of slots, comprising:
- inserting a first die insert into a first slot of the plurality of slots of the extrusion die such that each tooth of a first plurality of teeth of the first die insert blocks a portion of the first slot, the plurality of teeth extending from a first runner of the first die insert;
- separating the first runner from the plurality of teeth of the first die insert;
- inserting a second die insert into a second slot extending transverse to the first slot such that each tooth of a second plurality of teeth of the second die insert blocks a portion of the second slot, and such that the second plurality of teeth of the second die insert mate with the first plurality of teeth of the first die insert, the second plurality of teeth extending from a second runner of the second die insert;
- and
- separating the second runner from the second plurality of teeth of the second die insert.
A method of modifying a honeycomb-structure-forming extrusion die having a plurality of slots, comprising:
- forming a die insert comprising a runner and a plurality of teeth, wherein the plurality of teeth are spaced from one another along a longitudinal axis of the runner;
- inserting the die insert into a slot of the plurality of slots of the extrusion die so that a material cannot be extruded through the portions of the slot of the extrusion die in which the plurality of teeth are inserted;
- and
- separating the runner from the plurality of teeth such that the plurality of teeth remain within the slot of the plurality of slots of the extrusion die.
An extrusion die, comprising:
- a plurality of pins defining a plurality of intersecting slots therebetween, at least one slot extending in a first direction across an entire discharge face of the extrusion die and at least one slot extending in a second direction across the entire discharge face of the extrusion die, the second direction being transverse to the first direction;
- and
- a plurality of teeth located in a slot of the plurality of intersecting slots extending in the first direction so as to block a flow of material through at least a portion of the slot during extrusion.
Dependencies are inferred from the claim text.