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Honeycomb extrusion apparatus and methods

An extrusion device, honeycomb technology, applied in the direction of ceramic extrusion dies, presses, material forming presses, etc., can solve problems such as uneven skin characteristics

Active Publication Date: 2015-04-01
CORNING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional techniques can result in uneven skin characteristics around the perimeter of the honeycomb

Method used

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  • Honeycomb extrusion apparatus and methods
  • Honeycomb extrusion apparatus and methods
  • Honeycomb extrusion apparatus and methods

Examples

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Embodiment Construction

[0026] Aspects of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which example embodiments of the invention are shown. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0027] The integral skin of the honeycomb body can be formed from a variety of materials, such as ceramic mixtures. Exemplary batches may include ceramic mixtures such as pastes and / or slurries, such as granules and / or powders mixed with polymeric binders and / or low molecular weight liquids, as well as combinations of the above and other materials, Such as forming glue...

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Abstract

A honeycomb extrusion apparatus includes first (323) and second (327) vanes with respective first (325) and second (329) face portions. First (Wl) and second (W2) axial widths of a circumferential feed area (321) are respectively defined between the first (325) and second (329) face portions and the outer feed surface (311) of the die body (201). In further examples, methods include the steps of selectively adjusting the first axial width (Wl) and the second axial width (W2) of the circumferential feed area (321) by respectively adjusting the first (323) and second (327) vane relative to the mask (225). In further examples, a honeycomb extrusion apparatus includes a plurality of mask segments (1209a, 1209b) that each includes an inner peripheral surface portion (1501). Each of the plurality of mask segments (1209a, 1209b) is independently adjustable along a respective radial axis (1503).

Description

[0001] Cross-references to related applications [0002] This application claims priority under 35 U.S.C. §120 to U.S. Patent Application Serial No. 13 / 466,560, filed May 8, 2012, the contents of which are relied upon and incorporated by reference herein in its entirety. technical field [0003] The present invention relates generally to honeycomb extrusion apparatus and methods, and more particularly to honeycomb extrusion apparatus and methods for coextruding honeycomb bodies with integral skins Background technique [0004] Conventional honeycomb extrusion apparatus are known for coextruding the skin and core of a honeycomb body. However, conventional techniques can result in uneven skin characteristics around the perimeter of the honeycomb. Contents of the invention [0005] In one aspect, a honeycomb extrusion apparatus includes a die body including an array of pins spaced apart to form an extrusion face of a honeycomb grid with discharge slots along the length of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B3/26B29C47/00B29C47/08B30B11/22B29C48/11B29C48/30
CPCB29C48/302B29C48/2556B29C48/30B29C48/11B28B3/2672B28B3/269B30B11/221B29C48/92B29C48/286B29C2948/926B29C48/40B28B3/26B28B3/2681
Inventor T·W·布鲁C·J·沃尔什
Owner CORNING INC