Method for in-line degassing and filtration of molten metal
US4052198A · kind A · utility
15Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1976 |
| Grant date | Oct 4, 1977 |
| Priority date | — |
| Expiry date | Dec 6, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B21/066
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The disclosure teaches an improvement in the degassing and filtration of molten metal, especially aluminum, using an apparatus which employs a pair of sequentially placed, removable filter-type plates and at least one fluxing gas inlet positioned therebetween. Fluxing gas is provided to the melt through the inlet and flows upward through the first of said plates into counter-current contact with the melt. Said plate serves to break up said fluxing gas into a fine dispersion to assure its intimate and extensive contact with the melt. Dissolved gases and non-metallic inclusions are thereby abstracted and removed from the melt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.