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Pressure Separation of Cast Green Ceramic

IP.com Disclosure Number: IPCOM000080770D
Original Publication Date: 1974-Feb-01
Included in the Prior Art Database: 2005-Feb-27
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Nufer, RW: AUTHOR

Abstract

A method for peeling green ceramic sheet from the casting surface is shown, wherein the exertion of tensile forces to the green sheet is completely eliminated. This is accomplished by forcing a high-pressure air flow between the green sheet and steel belt, while simultaneously sealing the air flow at the point of sheet separation. This is accomplished with a rubber sealing roller that exerts sufficient force on the green ceramic tape to prevent the air from flowing beyond this point.

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Pressure Separation of Cast Green Ceramic

A method for peeling green ceramic sheet from the casting surface is shown, wherein the exertion of tensile forces to the green sheet is completely eliminated. This is accomplished by forcing a high-pressure air flow between the green sheet and steel belt, while simultaneously sealing the air flow at the point of sheet separation.

This is accomplished with a rubber sealing roller that exerts sufficient force on the green ceramic tape to prevent the air from flowing beyond this point.

In establishing an air chamber to the rear of the separation point, the sheet is separated from the casting surface and remains in contact with the roller until it exits this chamber. The air penetrates to an infinitely small gap at the rear and ensures separation, without subjecting the green ceramic to the normal peeling forces. The combination of the air pressure forcing the sheet against the sealing roller and sheet roller coefficients of friction, further assures sheet integrity and elimination of tensile forces exerted to the sheet.

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