Die assembly and method of extruding cellular ceramic substrates with a skin

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United States of America Patent

PATENT NO 10328627
APP PUB NO 20160096305A1
SERIAL NO

14965525

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Abstract

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An extrusion apparatus including a die and a mask are provided such that no slots feed directly into the longitudinal skin forming gap between the mask and the die. In a method of forming a die adapted to improve skin uniformity of extruded cellular ceramic substrates a slotted block of die material is provided including central slots adapted to form a cellular matrix of the substrate and peripheral slots located outwardly of the central slots designed to be covered by a skin former mask and adapted to extrude peripheral batch material. An arcuate skin former is cut corresponding to a target shrinkage so as to intersect the slotted block such that skin flow from tangent slots at 90 degree positions of the die is limited to the peripheral batch material.

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Patent Owner(s)

Patent OwnerAddress
CORNING INCORPORATEDCORNING NY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lehman, Michael James Canisteo, US 13 14

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