Method and apparatus for extruding large honeycombs

Patent · Tue Sep 03 00:00:00 EDT 1996

OSTI ID:870589

Kragle, Harry A ^[1]; Lambert, David W ^[1]; Lipp, G Daniel ^[2]

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1. Corning, NY
2. Painted Post, NY

Extrusion die apparatus and an extrusion method for extruding large-cross-section honeycomb structures from plasticized ceramic batch materials are described, the apparatus comprising a die having a support rod connected to its central portion, the support rod being anchored to support means upstream of the die. The support rod and support means act to limit die distortion during extrusion, reducing die strain and stress to levels permitting large honeycomb extrusion without die failure. Dies of optimal thickness are disclosed which reduce the maximum stresses exerted on the die during extrusion.

• Research Organization: ROLLS-ROYCE CORP
• DOE Contract Number: DEN3-336; AC02-96EE50453
• Assignee: Corning Incorporated (Corning, NY)
• Patent Number(s): US 5552102
• Application Number: 08/358,099
• OSTI ID: 870589
• Country of Publication: United States
• Language: English

Related Subjects

method
apparatus
extruding
honeycombs
extrusion
die
large-cross-section
honeycomb
structures
plasticized
ceramic
batch
materials
described
comprising
support
rod
connected
central
portion
anchored
means
upstream
limit
distortion
reducing
strain
stress
levels
permitting
failure
dies
optimal
thickness
disclosed
reduce
maximum
stresses
exerted
support rod
extrusion die
honeycomb structure
support means
central portion
apparatus comprising
batch materials
die apparatus
comb structure
/264/425/