Metal honeycomb substrates for chemical and thermal applications

US7608344B2 · kind B2 · utility

Assignee

• CORNING INCORPORATED · US

Inventors

• John Steele Abbott, III · Elmira, US
• Thorsten Rolf Boger · Bad Camberg, DE
• Lin He · Irvine, US
• Samir Khanna · Naperville, US
• Kenneth Richard Miller · Addison, US
• Charles Sorensen · Corning, US

Key dates

• Filing date: Jul 29, 2004
• Grant date: Oct 27, 2009
• Expiry date: Aug 17, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/1234
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

Extruded metal honeycombs are produced by the direct extrusion of a softened bulk metal feedstock through a honey-comb extrusion die comprising a feedhole array for delivering softened metal through a supporting die baseplate to a honeycomb die discharge section, the discharge section comprising an array of intersecting discharge slots that form the walls of an extruded metal honeycomb structure. This process can be optimized by employing a proper pressure gradient for a particular extrudate flow rate, extrudate composition, and wall-drag condition arising from the particular composition of the feedhole wall, as illustrated graphically in FIG. 4.