Glass melting tanks and refractory material therefor
US4764198A · kind A · utility
14Cited by
7References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1987 |
| Grant date | Aug 16, 1988 |
| Priority date | — |
| Expiry date | Oct 29, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The glass melting tank for supplying a flat glass forming process has a melting zone for melting solid batch material and a refining zone with reduced return flow of glass. The base of the refining zone comprises a fusion cast refractory material comprising alumina, silica and between 31% and 43% by weight of zirconia. The refractory is conditioned by oxidation at at least 1450.degree. C. for 24 hours.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.