Continuous air bearing vapor stabilization system and method

Details Continuous air bearing vapor stabilization system and method Continuous air bearing vapor stabilization system and method

1992-10-30

1994-03-01

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Treating shaped or solid article

To shrink

264 63, 264343, C04B 3330, B29B 1700

Patent

active

052905047

ABSTRACT:
An in situ stabilizing tool provides a stress relieved, ceramic green sheet for green sheet screened stability. A green sheet stablilization system uses air bearings as a means of conveying a continuous ceramic green sheet web in a frictionless and stress free state. Solvent vapor stabilization of green sheets in a continuous mode adjusts solvent concentration in the air bearing using a solvent bubbler. Solvent vapor is generated from a group of solvents (e.g. hydrocarbons, water, etc.) that can be vaporized and used to solvent plasticize the ceramic green sheets to achieve stress relaxation. Take up loops and sensors adjust for longitudinal shrinkage during the green sheet relaxation process.

REFERENCES:
patent: 3395943 (1968-08-01), Wilde et al.
patent: 3953562 (1976-04-01), Hait et al.
patent: 4104345 (1978-08-01), Anderson et al.
patent: 4690591 (1987-09-01), Nagashima et al.
patent: 4808365 (1989-02-01), Kellmer
R. W. Nufer, "High-Stability Green Sheet Binder" vol. 21, No. 11 Apr. 1979, pp. 4489-4490.
R. W. Nufer, "Ceramic Greensheet Technology for Glass-Ceramic/Copper Multilevel Substrates (ES9000 System)" 42nd Electronics Components and Technology Conference, May 18-22, 1992, pp. 673-677.

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