Process for annealing heat fused cast refractory product
US4383963A · kind A · utility
2Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1981 |
| Grant date | May 17, 1983 |
| Priority date | — |
| Expiry date | Apr 9, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/657
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for annealing a heat fused cast refractory product casts a molten refractory material in a mold which is held in a heat insulating material as an annealing medium, said mold being held in said packed heat insulating material which has a thermal conductivity ranging from 0.04 to 0.3 Kcal/m. hr. .degree.C. (at 200.degree. C.) as a heat insulating property and a contraction coefficient of up to 45% under a pressure of 50 Kg/cm.sup.2 as a mechanical strength for supporting a mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.