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US 5,492,661 AGranted
Process for producing a casting ceramic
AssigneeABB Patent GmbH
InventorsGert Weddigen, Paul Szasz, Axel Kranzmann
Life of this patent
Estimating the term…
Abstract
A process for producing a casting ceramic including water glass and a powder containing silicon and aluminum, includes mixing epoxy resin based on bisphenol-A into a casting ceramic to reduce open porosity. The casting ceramic is subsequently subjected to at least one heat treatment.
Claims7
A process for producing a casting ceramic comprising water glass and a powder containing silicon and aluminum, comprising the steps of:
- a) mixing the water glass and the powder to form a mixture,
- b) mixing epoxy resin based on bisphenol-A into the mixture to form the casting ceramic, and
- c) subjecting the casting ceramic to at least one heat treatment for partially curing the casting ceramic.
Dependencies are inferred from the claim text.