Bottom of metallurgical container and process of forming the same
US4403768A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1981 |
| Grant date | Sep 13, 1983 |
| Priority date | — |
| Expiry date | Nov 30, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21C5/35
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a process for forming the bottom of a metallurgical container, especially the bottom of a converter for refining pig iron, of the type which comprises a metallic base, at least one layer of refractory material superimposed on the metallic base, a first layer of refractory bricks superimposed on the layer of refractory material, and a second layer of refractory bricks on said first layer, the steps of placing, spaced from each other, on said first layer a plurality of refractory elements permeable to gas and each enclosed in a metal casing open at the top, circumferentially surrounding the metal casing of each of the elements with bricks of a material which expands during rise of the temperature and thereafter completing the second layer with refractory bricks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.