Corning Incorporated

Priyank Paras Jain

Ravindra Kumar Akarapu

Douglas Munroe Beall

Kenneth Richard Miller

Thierry Luc Alain Dannoux

Xinghua Li

Steven Roy Burdette

John Forrest Wight, Jr

Thomas William Brew

Anatoli Anatolyevich Abramov

Stuart Gray

Christopher John Malarkey

Barada Kanta Nayak

Amit Halder

Alan Thomas Stephens, Ii

David Alan Deneka

Charles Michael Darcangelo

Rui Zhang

Richard Bergman

Seth Thomas Nickerson

Kenneth William Aniolek

Konstantin Vladimirovich Khodosevich

John M Larson

Jingru Zhang

Weidong Li

Artemii Alexandrovitch Shamkin

Alan T Ii Stephens

An extrusion system () according to certain aspects includes at least one infrared emitting device () arranged in a generally cylindrical shape with a hollow interior. The at least one infrared emitting device () is positioned downstream of an outlet of an extrusion die () to irradiate a perimeter of wet extrudate material in a uniform manner to form stiffened wet extrudate material () before such material is received by an extrudate support channel (). The at least one infrared emitting device () generally uniformly stiffens the skin of the wet extrudate material () to resist mechanical deformation of the extrudate material during subsequent handling steps. Such skin stiffening allows for increased tolerance of handling forces and permits extrusion of softer wet extrudate material without compromising the shape of a fired ceramic product.

Systems and methods for stiffening wet extrudate by circumferential irradiation

A honeycomb body () including a plurality of radially-extending walls () intersecting with a plurality of circumferentially-extending walls (), the plurality of radially-extending walls () and the plurality of circumferentially-extending walls () form a plurality of circumferential zones (A,B,C) of cells (). The plurality of circumferential zones (A,B,C) of cells () includes a first zone of cells (A) including two or more first rings of cells () and having a first cell density, and a second zone of cells (B) including two or more rings of cells () having varying cell densities across the two or more rings of cells. Other structures and extrusion dies are disclosed.

Honeycomb bodies with varying cell densities and extrusion dies for the manufacture thereof

A thin-walled honeycomb body () having a plurality of repeating cell structures () formed of intersecting porous thick walls (V,H) and thin walls (V,H). Each repeating cell structure () is bounded on its periphery by the thick walls (V,H) of a first transverse thickness (Tk) and the thin walls (V,H) have a second transverse thickness (Tt) that subdivides each repeating cell structure () into between 7 and 36 individual cells (). In the thin-walled honeycomb body (), the first transverse thickness (Tk) of the thick walls (V,H) is less than or equal to 0.127 mm (0.005 inch) and the second transverse thickness (Tt) of the thin walls (V,H) is less than or equal to 0.0635 mm (0.0025 inch), and Tk&#x3e;Tt. Honeycomb extrusion dies and methods of manufacturing the thin-walled honeycomb body () having thick walls (V,H) and thin walls (V,H) are provided.

Multi-wall thickness, thin-walled honeycomb bodies, and extrusion dies and methods therefor

A method of manufacturing a honeycomb body, comprising extruding honeycomb extrudate () in an axial direction (A), the honeycomb extrudate () having an outer periphery (); and laser machining in situ the honeycomb extrudate () to form a laser cut in the honeycomb extrudate. A system for in situ cutting a wet green ceramic extrudate, comprising a laser () configured to irradiate laser energy to an outer periphery of a wet green ceramic article, the laser energy adapted to cut through at least a portion of the outer periphery ().

Methods of laser machining wet cellular ceramic extrudate for honeycomb body manufacture

A honeycomb structure () includes intersecting porous walls (). Inlet channels () and outlet channels () are formed by the intersecting porous walls (), wherein the inlet channels () comprise inlet hydraulic diameters (HDi) and the outlet channels () comprise outlet hydraulic diameters (HDo). The inlet channels () comprise inlet corners () with inlet corner radii (Ri) and the outlet channels () comprise outlet corners () with outlet corner radii (Ro). A centerpost () is defined by adjacent opposing inlet corners () of two of the inlet channels () and adjacent opposing outlet corners () of two of the outlet channels (). A first diagonal length (D1) is a shortest distance between the opposing outlet corners () of the two outlet channels () and a second diagonal length (D2) is a shortest distance between the opposing inlet corners () of the two inlet channels (). The honeycomb structure () has certain aspect ratios D1:D2 depending on hydraulic diameter ratios HDi:HDo.

High isostatic strength honeycomb structures and extrusion dies therefor

Disclosed is a laminated glass structure with one or more inner glass layers with at least one in tension and two outer glass layers in compression wherein one or both of the outer layers at least partially wrap around the one or more inner layers at one or more of the edges of the laminated glass structure. Also disclosed is a process for forming a laminated glass structure, comprising providing a laminated glass structure, removing at least some glass from at least one the edges of the structure to produce a concavity in at the at least one edge and applying heat to the at least one edge.

Laminated glass structure and method of manufacture

A method of forming a glass article includes drawing a glass ribbon from a draw housing in a downstream direction, heating portions of only a bead of the glass ribbon to form compressive stress regions in the bead, scoring the glass ribbon to form a score line on which the glass ribbon is broken. The bead is heated at a position upstream from the score line. An apparatus for manufacturing a glass article includes a draw housing for forming a glass ribbon having a bead, a heating apparatus with a heat source for forming compressive stress regions in portions of only the bead of the glass ribbon, and a scoring apparatus that forms a score line on which the glass ribbon is broken to form the glass article. The heat source moves downstream simultaneously with the glass ribbon.

Thermal barriers to guide glass cutting and prevent crackout

A radial cell ceramic honeycomb structure is provided that is particularly adapted for use as a catalytic carrier or a particulate filter in an automotive or diesel exhaust system. The honeycomb structure includes a network of interconnected webs having a central axis. The network of webs includes radial webs of varying lengths, only some of which substantially extend the entire radial length of the network, and tangential webs that intersect to define rings of gas-conducting radial cells, and a rounded outer skin that surrounds the cells formed by the interconnected webs. The radial webs extending to the periphery of the network join an inner edge of the outer skin in a substantially orthogonal orientation to reduce thermally generated stresses and to increase strength of the resulting structure. The number of radial webs in the network changes along the radial length at transition zones that are defined by one of the tangential webs such that a desired cell density is achieved across the network.

Radial cell ceramic honeycomb structure

Growing community of inventors

Horseheads, NY, United States of America

Priyank Paras Jain