Process for producing a casting ceramic

US5492661A · kind A · utility

Assignee

• ABB PATENT GMBH · DE

Inventors

• Gert Weddigen · Heidelberg, DE
• Paul Szasz · Heidelberg, DE
• Axel Kranzmann · Stuttgart, DE

Key dates

• Filing date: Dec 19, 1994
• Grant date: Feb 20, 1996
• Expiry date: Dec 19, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/259
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

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.