Pretreatment of fused cast refractories
US4838919A · kind A · utility
5Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1987 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | Dec 28, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/484
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The potential for fused cast ceramic refractories to release stones into molten material with which it is in contact is reduced by subjecting the refractory to a vacuum pretreatment to remove gases from the glassy phase of the refractory. Preferably the treatment is carried out when the refractory is in a molten state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.