Filtering and inline degassing of molten metal
US4154689A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1977 |
| Grant date | May 15, 1979 |
| Priority date | — |
| Expiry date | Jul 29, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/182
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The disclosure teaches an improvement in the filtration of molten metal especially aluminum using a removable vertically disposed filter plate and at least one fluxing gas inlet positioned in such a manner so as to introduce fluxing gas into the filter plate. The filter plate is provided with a bevelled peripheral surface mating with a like bevelled surface in a filter chamber so that the filter plate can be conveniently inserted in the chamber and removed therefrom. Fluxing gas is provided to the melt through the inlet and flows through the filter plate so as to assure 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.