Apparatus and method for skinning articles

Patent metadata

Field	Value
Publication number	US-10634025-B2
Application number	US-201715588080-A
Country	US
Kind code	B2
Filing date	May 5, 2017
Priority date	Nov 29, 2011
Publication date	Apr 28, 2020
Grant date	Apr 28, 2020

Abstract

A skinning apparatus and a method of skinning a porous ceramic. The apparatus includes an axial skinning manifold. The axial skinning manifold includes a curved adaptive pipe to flow cement in a circumferential direction from an inlet at a first position and through an adaptive opening along an inner bend of the curve through a land channel disposed along the inner bend. The land channel emits the cement at a constant velocity from a land opening extending proximate the first position to a second position spaced apart from the first position. The land outlet emits cement at a constant velocity around the outer periphery of the porous ceramic to dispose a uniform skin thereon as the porous ceramic moves axially relative to the land outlet.

First claim

The invention claimed is:

1. A method of skinning a porous ceramic honeycomb article, comprising:
providing cement at a first pressure to an inlet of a circumferentially curved adaptive pipe of an axial skinning manifold;
flowing the cement circumferentially through the circumferential adaptive pipe from the inlet to positions distant from the inlet, simultaneously flowing the cement radially through an adaptive pipe opening along a wall of the adaptive pipe and along a land channel to an inner circumference land opening of the axial skinning manifold;
contacting an outer peripheral wall of the porous ceramic honeycomb article with the cement at a second pressure, the second pressure being constant from a first position of the land opening to a second position of the land opening, wherein the second position is located further away from the inlet than the first position;
wherein flowing along the land channel comprises flowing a first radial distance to the first position and a continuously decreasing distance to a second radial distance at the second position, the first distance being greater than the second distance.

2. The method of claim 1 , further comprising drawing the porous ceramic honeycomb article axially to the land opening to deposit a uniform cement skin on the outer peripheral wall.

3. The method of claim 1 , wherein flowing along the land channel comprises flowing through a first gap height to the first position and through a continuously increasing gap height to a second gap height to the second position, the second gap height being greater than the first gap height.

4. The method of claim 1 , further comprising flowing the cement through holes from the land opening into an internal surface of a unipipe to contact the outer peripheral wall of the porous ceramic honeycomb article with the cement.

5. The method of claim 4 , further comprising drawing the porous ceramic honeycomb article axially through the unipipe to deposit a uniform cement skin on the outer peripheral wall.

6. The method of claim 4 , wherein the unipipe comprises an elliptical, circular, square, or hexagonal cross section viewed perpendicular to axial direction to deposit a uniform cement skin on the outer peripheral wall of the porous ceramic article comprising a same cross section shape and a smaller cross sectional area than the unipipe.

7. The method of claim 1 , wherein the circumferential adaptive pipe comprises a closed loop.

8. The method of claim 1 , wherein the circumferential adaptive pipe comprises a plurality of inlets.

9. A method of skinning a porous ceramic honeycomb article, comprising:
providing cement at a first pressure to an inlet of a circumferentially curved adaptive pipe of an axial skinning manifold;
flowing the cement circumferentially through the circumferential adaptive pipe from the inlet to positions distant from the inlet, simultaneously flowing the cement radially through an adaptive pipe opening along a wall of the adaptive pipe and along a land channel to an inner circumference land opening of the axial skinning manifold;
contacting an outer peripheral wall of the porous ceramic honeycomb article with the cement at a second pressure, the second pressure being constant from a first position of the land opening to a second position of the land opening, wherein the second position is located further away from the inlet than the first position;
wherein flowing along the land channel comprises flowing through a first gap height to the first position and through a continuously increasing gap height to a second gap height to the second position, the second gap height being greater than the first gap height.

10. The method of claim 9 , further comprising drawing the porous ceramic honeycomb article axially to the land opening to deposit a uniform cement skin on the outer peripheral wall.

11. The method of claim 9 , further comprising flowing the cement through holes from the land opening into an internal surface of a unipipe to contact the outer peripheral wall of the porous ceramic honeycomb article with the cement.

12. The method of claim 11 , further comprising drawing the porous ceramic honeycomb article axially through the unipipe to deposit a uniform cement skin on the outer peripheral wall.

13. The method of claim 11 , wherein the unipipe comprises an elliptical, circular, square, or hexagonal cross section viewed perpendicular to axial direction to deposit a uniform cement skin on the outer peripheral wall of the porous ceramic article comprising a same cross section shape and a smaller cross sectional area than the unipipe.

14. The method of claim 9 , wherein the circumferential adaptive pipe comprises a closed loop.

15. The method of claim 9 , wherein the circumferential adaptive pipe comprises a plurality of inlets.

Assignees

• Corning Inc

Inventors

• Chapman Thomas Richard
• Singh John Paul Bir
• Tremper Amber Leigh
• Vaddiraju Srinivasa Rao
• Wasson Kevin Lee

Classifications

• B28B11/04

  for coating {or applying engobing layers}(glazing, engobing C04B) · CPC title

• C04B41/009

  characterised by the material treated · CPC title

• C04B41/85

  with inorganic materials · CPC title

• G05B15/02

  electric · CPC title

• B29C48/92

  Measuring, controlling or regulating · CPC title