Creep resistant zircon refractory material used in a glass manufacturing system

US7041614B2 · kind B2 · utility

Assignee

• CORNING INCORPORATED · US

Inventors

• Donald J. Ames · Corning, US
• Ellen K. Brackman · Corning, US
• Donald L. Guile · Horseheads, US

Key dates

• Filing date: Dec 16, 2003
• Grant date: May 9, 2006
• Expiry date: Jul 11, 2024

Classification

• Technology area (CPC —): General

Abstract

A glass manufacturing system is described herein that has a forming device (e.g., isopipe) which is made from a zircon refractory material that has an improved creep resistance property. The zircon refractory material has a composition with at least the following elements: ZrSiO4 (98.75–99.68 wt %); ZrO2 (0.01–0.15 wt %); TiO2 (0.23–0.50 wt %); and Fe2O3 (0.08–0.60 wt %).