Ladle for the preparation of metal provided with a refractory bottom lining and method for producing said refractory bottom lining
US5948349A · kind A · utility
19Cited by
4References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 20, 1992 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Oct 20, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D41/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention provides a ladle for the preparation of metal comprising a metal case (1) provided, on its inner surface, with a refractory wall lining (3) and a refractory bottom lining (4) with a taphole (5), characterized in that the surface of the refractory bottom lining (4) in contact with the metal in preparation is a concave surface having at every point a slope in the direction toward the taphole (5). The invention also provides a method for producing such a refractory bottom lining.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.